• SpringMVC：从入门到精通，7篇系列篇带你全面掌握--三.使用SpringMVC完成增删改查

    🥳🥳Welcome Huihui's Code World ! !🥳🥳

    接下来看看由辉辉所写的关于SpringMVC的相关操作吧

    目录

    🥳🥳Welcome Huihui's Code World ! !🥳🥳

    效果演示

    一.导入项目的相关依赖

    二.添加框架的配置文件

    generatorConfig.xml

    jdbc.properties

    log4j2.xml

    Spring-context.xml

    Spring-mvc.xml

    SpringMVCzy.xml

    三.工具类

    PagBean

    PageTag

    StringUtils

    四.逆向生成代码

    1.发布项目

    2.生成代码

    五.编写后台代码

    biz

    web

    六.前台代码编写

    index.jsp

    edit.jsp

    效果演示

    一.导入项目的相关依赖

    将项目需要用到的插件以及依赖导入到pom.xml中

    1. "1.0" encoding="UTF-8"?>
    2.  
    3. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    5.   <modelVersion>4.0.0modelVersion>
    6.  
    7.   <groupId>org.examplegroupId>
    8.   <artifactId>WHzyssmartifactId>
    9.   <version>1.0-SNAPSHOTversion>
    10.   <packaging>warpackaging>
    11.  
    12.   <name>Spring-Mybatis Maven Webappname>
    13.   
    14.   <url>http://www.example.comurl>
    15.  
    16.   <properties>
    17.     <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
    18.     <maven.compiler.source>1.8maven.compiler.source>
    19.     <maven.compiler.target>1.8maven.compiler.target>
    20.     <maven.compiler.plugin.version>3.7.0maven.compiler.plugin.version>
    21.  
    22.     
    23.     
    24.     <spring.version>5.0.2.RELEASEspring.version>
    25.     
    26.     <mybatis.version>3.4.5mybatis.version>
    27.     
    28.     <mysql.version>5.1.44mysql.version>
    29.     
    30.     <pagehelper.version>5.1.2pagehelper.version>
    31.     
    32.     <mybatis.spring.version>1.3.1mybatis.spring.version>
    33.     
    34.     <commons.dbcp2.version>2.1.1commons.dbcp2.version>
    35.     <commons.pool2.version>2.4.3commons.pool2.version>
    36.     
    37.     <log4j2.version>2.9.1log4j2.version>
    38.     <log4j2.disruptor.version>3.2.0log4j2.disruptor.version>
    39.     <slf4j.version>1.7.13slf4j.version>
    40.     
    41.     <junit.version>4.12junit.version>
    42.     <servlet.version>4.0.0servlet.version>
    43.     <lombok.version>1.18.2lombok.version>
    44.  
    45.     <mybatis.ehcache.version>1.1.0mybatis.ehcache.version>
    46.     <ehcache.version>2.10.0ehcache.version>
    47.  
    48.     <redis.version>2.9.0redis.version>
    49.     <redis.spring.version>1.7.1.RELEASEredis.spring.version>
    50.     <jackson.version>2.9.3jackson.version>
    51.     <jstl.version>1.2jstl.version>
    52.     <standard.version>1.1.2standard.version>
    53.     <tomcat-jsp-api.version>8.0.47tomcat-jsp-api.version>
    54.     <commons-fileupload.version>1.3.3commons-fileupload.version>
    55.     <hibernate-validator.version>5.0.2.Finalhibernate-validator.version>
    56.  
    57.     <shiro.version>1.3.2shiro.version>
    58.   properties>
    59.  
    60.   <dependencies>
    61.     
    62.     <dependency>
    63.       <groupId>org.springframeworkgroupId>
    64.       <artifactId>spring-coreartifactId>
    65.       <version>${spring.version}version>
    66.     dependency>
    67.     <dependency>
    68.       <groupId>org.springframeworkgroupId>
    69.       <artifactId>spring-beansartifactId>
    70.       <version>${spring.version}version>
    71.     dependency>
    72.     <dependency>
    73.       <groupId>org.springframeworkgroupId>
    74.       <artifactId>spring-contextartifactId>
    75.       <version>${spring.version}version>
    76.     dependency>
    77.     <dependency>
    78.       <groupId>org.springframeworkgroupId>
    79.       <artifactId>spring-ormartifactId>
    80.       <version>${spring.version}version>
    81.     dependency>
    82.     <dependency>
    83.       <groupId>org.springframeworkgroupId>
    84.       <artifactId>spring-txartifactId>
    85.       <version>${spring.version}version>
    86.     dependency>
    87.     <dependency>
    88.       <groupId>org.springframeworkgroupId>
    89.       <artifactId>spring-aspectsartifactId>
    90.       <version>${spring.version}version>
    91.     dependency>
    92.     <dependency>
    93.       <groupId>org.springframeworkgroupId>
    94.       <artifactId>spring-webartifactId>
    95.       <version>${spring.version}version>
    96.     dependency>
    97.  
    98.     <dependency>
    99.       <groupId>org.springframeworkgroupId>
    100.       <artifactId>spring-testartifactId>
    101.       <version>${spring.version}version>
    102.     dependency>
    103.  
    104.  
    105.     
    106.     <dependency>
    107.       <groupId>org.mybatisgroupId>
    108.       <artifactId>mybatisartifactId>
    109.       <version>${mybatis.version}version>
    110.     dependency>
    111.     
    112.     <dependency>
    113.       <groupId>mysqlgroupId>
    114.       <artifactId>mysql-connector-javaartifactId>
    115.       <version>${mysql.version}version>
    116.     dependency>
    117.     
    118.     <dependency>
    119.       <groupId>com.github.pagehelpergroupId>
    120.       <artifactId>pagehelperartifactId>
    121.       <version>${pagehelper.version}version>
    122.     dependency>
    123.     
    124.     <dependency>
    125.       <groupId>org.mybatisgroupId>
    126.       <artifactId>mybatis-springartifactId>
    127.       <version>${mybatis.spring.version}version>
    128.     dependency>
    129.  
    130.     <dependency>
    131.       <groupId>org.springframeworkgroupId>
    132.       <artifactId>spring-context-supportartifactId>
    133.       <version>${spring.version}version>
    134.     dependency>
    135.  
    136.     
    137.     <dependency>
    138.       <groupId>org.mybatis.cachesgroupId>
    139.       <artifactId>mybatis-ehcacheartifactId>
    140.       <version>${mybatis.ehcache.version}version>
    141.     dependency>
    142.     
    143.     <dependency>
    144.       <groupId>net.sf.ehcachegroupId>
    145.       <artifactId>ehcacheartifactId>
    146.       <version>${ehcache.version}version>
    147.     dependency>
    148.  
    149.     <dependency>
    150.       <groupId>redis.clientsgroupId>
    151.       <artifactId>jedisartifactId>
    152.       <version>${redis.version}version>
    153.     dependency>
    154.     <dependency>
    155.       <groupId>org.springframework.datagroupId>
    156.       <artifactId>spring-data-redisartifactId>
    157.       <version>${redis.spring.version}version>
    158.     dependency>
    159.     <dependency>
    160.       <groupId>com.fasterxml.jackson.coregroupId>
    161.       <artifactId>jackson-databindartifactId>
    162.       <version>${jackson.version}version>
    163.     dependency>
    164.     <dependency>
    165.       <groupId>com.fasterxml.jackson.coregroupId>
    166.       <artifactId>jackson-coreartifactId>
    167.       <version>${jackson.version}version>
    168.     dependency>
    169.     <dependency>
    170.       <groupId>com.fasterxml.jackson.coregroupId>
    171.       <artifactId>jackson-annotationsartifactId>
    172.       <version>${jackson.version}version>
    173.     dependency>
    174.  
    175.     
    176.     <dependency>
    177.       <groupId>org.apache.commonsgroupId>
    178.       <artifactId>commons-dbcp2artifactId>
    179.       <version>${commons.dbcp2.version}version>
    180.       <exclusions>
    181.         <exclusion>
    182.           <artifactId>commons-pool2artifactId>
    183.           <groupId>org.apache.commonsgroupId>
    184.         exclusion>
    185.       exclusions>
    186.     dependency>
    187.     <dependency>
    188.       <groupId>org.apache.commonsgroupId>
    189.       <artifactId>commons-pool2artifactId>
    190.       <version>${commons.pool2.version}version>
    191.     dependency>
    192.  
    193.     
    194.     <dependency>
    195.       <groupId>org.springframeworkgroupId>
    196.       <artifactId>spring-webmvcartifactId>
    197.       <version>${spring.version}version>
    198.     dependency>
    199.  
    200.     
    201.  
    202.     
    203.     
    204.     
    205.     <dependency>
    206.       <groupId>org.slf4jgroupId>
    207.       <artifactId>slf4j-apiartifactId>
    208.       <version>${slf4j.version}version>
    209.     dependency>
    210.     <dependency>
    211.       <groupId>org.slf4jgroupId>
    212.       <artifactId>jcl-over-slf4jartifactId>
    213.       <version>${slf4j.version}version>
    214.       <scope>runtimescope>
    215.     dependency>
    216.  
    217.     
    218.     <dependency>
    219.       <groupId>org.apache.logging.log4jgroupId>
    220.       <artifactId>log4j-apiartifactId>
    221.       <version>${log4j2.version}version>
    222.     dependency>
    223.     <dependency>
    224.       <groupId>org.apache.logging.log4jgroupId>
    225.       <artifactId>log4j-coreartifactId>
    226.       <version>${log4j2.version}version>
    227.     dependency>
    228.     
    229.     <dependency>
    230.       <groupId>org.apache.logging.log4jgroupId>
    231.       <artifactId>log4j-slf4j-implartifactId>
    232.       <version>${log4j2.version}version>
    233.     dependency>
    234.     
    235.     <dependency>
    236.       <groupId>org.apache.logging.log4jgroupId>
    237.       <artifactId>log4j-webartifactId>
    238.       <version>${log4j2.version}version>
    239.       <scope>runtimescope>
    240.     dependency>
    241.  
    242.     
    243.     <dependency>
    244.       <groupId>com.lmaxgroupId>
    245.       <artifactId>disruptorartifactId>
    246.       <version>${log4j2.disruptor.version}version>
    247.     dependency>
    248.  
    249.     
    250.     <dependency>
    251.       <groupId>junitgroupId>
    252.       <artifactId>junitartifactId>
    253.       <version>${junit.version}version>
    255.     dependency>
    256.     <dependency>
    257.       <groupId>javax.servletgroupId>
    258.       <artifactId>javax.servlet-apiartifactId>
    259.       <version>${servlet.version}version>
    260.       <scope>providedscope>
    261.     dependency>
    262.     <dependency>
    263.       <groupId>org.projectlombokgroupId>
    264.       <artifactId>lombokartifactId>
    265.       <version>${lombok.version}version>
    266.       <scope>providedscope>
    267.     dependency>
    268.     <dependency>
    269.       <groupId>jstlgroupId>
    270.       <artifactId>jstlartifactId>
    271.       <version>${jstl.version}version>
    272.     dependency>
    273.     <dependency>
    274.       <groupId>taglibsgroupId>
    275.       <artifactId>standardartifactId>
    276.       <version>${standard.version}version>
    277.     dependency>
    278.     <dependency>
    279.       <groupId>org.apache.tomcatgroupId>
    280.       <artifactId>tomcat-jsp-apiartifactId>
    281.       <version>${tomcat-jsp-api.version}version>
    282.     dependency>
    283.     <dependency>
    284.       <groupId>commons-fileuploadgroupId>
    285.       <artifactId>commons-fileuploadartifactId>
    286.       <version>${commons-fileupload.version}version>
    287.     dependency>
    288.  
    289.     <dependency>
    290.       <groupId>org.hibernategroupId>
    291.       <artifactId>hibernate-validatorartifactId>
    292.       <version>${hibernate-validator.version}version>
    293.     dependency>
    294.  
    295.     
    296.     <dependency>
    297.       <groupId>org.apache.shirogroupId>
    298.       <artifactId>shiro-coreartifactId>
    299.       <version>${shiro.version}version>
    300.     dependency>
    301.     <dependency>
    302.       <groupId>org.apache.shirogroupId>
    303.       <artifactId>shiro-webartifactId>
    304.       <version>${shiro.version}version>
    305.     dependency>
    306.     <dependency>
    307.       <groupId>org.apache.shirogroupId>
    308.       <artifactId>shiro-springartifactId>
    309.       <version>${shiro.version}version>
    310.     dependency>
    311.   dependencies>
    312.  
    313.   <build>
    314.  
    315.     <resources>
    316.       
    317.       <resource>
    318.         <directory>src/main/javadirectory>
    319.         <includes>
    320.           <include>**/*.xmlinclude>
    321.         includes>
    322.       resource>
    323.       
    324.       <resource>
    325.         <directory>src/main/resourcesdirectory>
    326.         <includes>
    327.           <include>*.propertiesinclude>
    328.           <include>*.xmlinclude>
    329.         includes>
    330.       resource>
    331.     resources>
    332.       <plugins>
    333.         <plugin>
    334.           <groupId>org.apache.maven.pluginsgroupId>
    335.           <artifactId>maven-compiler-pluginartifactId>
    336.           <version>${maven.compiler.plugin.version}version>
    337.           <configuration>
    338.             <source>${maven.compiler.source}source>
    339.             <target>${maven.compiler.target}target>
    340.             <encoding>${project.build.sourceEncoding}encoding>
    341.           configuration>
    342.         plugin>
    343.         <plugin>
    344.           <groupId>org.mybatis.generatorgroupId>
    345.           <artifactId>mybatis-generator-maven-pluginartifactId>
    346.           <version>1.3.2version>
    347.           <dependencies>
    348.             
    349.             <dependency>
    350.               <groupId>mysqlgroupId>
    351.               <artifactId>mysql-connector-javaartifactId>
    352.               <version>${mysql.version}version>
    353.             dependency>
    354.           dependencies>
    355.           <configuration>
    356.             <overwrite>trueoverwrite>
    357.           configuration>
    358.         plugin>
    359.  
    360.         <plugin>
    361.           <artifactId>maven-clean-pluginartifactId>
    362.           <version>3.1.0version>
    363.         plugin>
    364.         
    365.         <plugin>
    366.           <artifactId>maven-resources-pluginartifactId>
    367.           <version>3.0.2version>
    368.         plugin>
    369.         <plugin>
    370.           <artifactId>maven-compiler-pluginartifactId>
    371.           <version>3.8.0version>
    372.         plugin>
    373.         <plugin>
    374.           <artifactId>maven-surefire-pluginartifactId>
    375.           <version>2.22.1version>
    376.         plugin>
    377.         <plugin>
    378.           <artifactId>maven-war-pluginartifactId>
    379.           <version>3.2.2version>
    380.         plugin>
    381.         <plugin>
    382.           <artifactId>maven-install-pluginartifactId>
    383.           <version>2.5.2version>
    384.         plugin>
    385.         <plugin>
    386.           <artifactId>maven-deploy-pluginartifactId>
    387.           <version>2.8.2version>
    388.         plugin>
    389.       plugins>
    390.   build>
    391. project>

    二.添加框架的配置文件

    generatorConfig.xml

    这个文件用于生成Java代码。它包含了数据库连接信息、Java类型转换设置、JavaBean生成设置、SQL映射文件生成设置以及生成的表的结构等信息。通过这个配置文件，MyBatis Generator可以根据这些配置信息自动生成相应的Java实体类、Mapper接口以及XML映射文件

    1. "1.0" encoding="UTF-8" ?>
    2. generatorConfiguration PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
    3.         "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd" >
    4. <generatorConfiguration>
    5.     
    6.     <properties resource="jdbc.properties"/>
    7.  
    8.     
    9.     <classPathEntry location="D:\tools\apache-maven-3.5.0-bin\mvn_localRepositor\mysql\mysql-connector-java\5.1.44\\mysql-connector-java-5.1.44.jar"/>
    10.  
    11.     
    12.     <context id="infoGuardian">
    13.         
    14.         <commentGenerator>
    15.             <property name="suppressAllComments" value="true"/>
    16.             <property name="suppressDate" value="true"/> 
    17.         commentGenerator>
    18.  
    19.         
    20.         <jdbcConnection driverClass="${jdbc.driver}"
    21.                         connectionURL="${jdbc.url}" userId="${jdbc.username}" password="${jdbc.password}"/>
    22.  
    23.         
    24.         <javaTypeResolver>
    25.             
    26.             <property name="forceBigDecimals" value="false"/>
    27.         javaTypeResolver>
    28.  
    29.         
    30.         
    31.         
    32.         <javaModelGenerator targetPackage="com.wh.model"
    33.                             targetProject="src/main/java">
    34.             
    35.             <property name="enableSubPackages" value="false"/>
    36.             
    37.             <property name="constructorBased" value="true"/>
    38.             
    39.             <property name="trimStrings" value="false"/>
    40.             
    41.             <property name="immutable" value="false"/>
    42.         javaModelGenerator>
    43.  
    44.         
    45.         <sqlMapGenerator targetPackage="com.wh.mapper"
    46.                          targetProject="src/main/java">
    47.             
    48.             <property name="enableSubPackages" value="false"/>
    49.         sqlMapGenerator>
    50.  
    51.         
    52.         
    53.         
    54.         
    55.         <javaClientGenerator targetPackage="com.wh.mapper"
    56.                              targetProject="src/main/java" type="XMLMAPPER">
    57.             
    58.             <property name="enableSubPackages" value="false"/>
    59.         javaClientGenerator>
    60.  
    61.         <table schema="" tableName="t_mvc_cat" domainObjectName="Cat"
    62.                enableCountByExample="false" enableDeleteByExample="false"
    63.                enableSelectByExample="false" enableUpdateByExample="false">
    64.         table>
    65.  
    66.  
    67.  
    68.     context>
    69. generatorConfiguration>
    70.

    jdbc.properties

    这个配置文件是用来配置Java应用程序与MySQL数据库的连接信息的

    1. jdbc.driver=com.mysql.jdbc.Driver
    2. jdbc.url=jdbc:mysql://localhost:3306/mybatis_ssm?useUnicode=true&characterEncoding=UTF-8
    3. jdbc.username=root
    4. jdbc.password=123456

    log4j2.xml

    这个配置文件是用于配置Log4j2的日志输出规则。Log4j2是一个用于Java应用程序的日志框架，它提供了灵活的日志记录功能

    1. "1.0" encoding="UTF-8"?>
    2.  
    4. <Configuration status="WARN" monitorInterval="30">
    5.     <Properties>
    6.         
    7.         <Property name="LOG_HOME">/root/workspace/lucenedemo/logsProperty>
    8.         <property name="ERROR_LOG_FILE_NAME">/root/workspace/lucenedemo/logs/errorproperty>
    9.         <property name="WARN_LOG_FILE_NAME">/root/workspace/lucenedemo/logs/warnproperty>
    10.         <property name="PATTERN">%d{yyyy-MM-dd HH:mm:ss.SSS} [%t-%L] %-5level %logger{36} - %msg%nproperty>
    11.     Properties>
    12.  
    13.     <Appenders>
    14.         
    15.         <Console name="Console" target="SYSTEM_OUT">
    16.             
    17.             <ThresholdFilter level="trace" onMatch="ACCEPT"
    18.                              onMismatch="DENY" />
    19.             
    20.             
    21.             <PatternLayout pattern="${PATTERN}" />
    22.         Console>
    23.  
    24.         
    25.         
    26.         <File name="log" fileName="logs/test.log" append="false">
    27.             <PatternLayout
    28.                     pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
    29.         File>
    30.         
    31.         <RollingFile name="RollingFileInfo" fileName="${LOG_HOME}/info.log"
    32.                      filePattern="${LOG_HOME}/$${date:yyyy-MM}/info-%d{yyyy-MM-dd}-%i.log">
    33.             
    34.             <ThresholdFilter level="info" onMatch="ACCEPT"
    35.                              onMismatch="DENY" />
    36.             <PatternLayout
    37.                     pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
    38.             <Policies>
    39.                 
    40.                 
    41.                 
    42.                 <TimeBasedTriggeringPolicy interval="1"
    43.                                            modulate="true" />
    44.                 
    45.                 
    46.             Policies>
    47.         RollingFile>
    48.  
    49.         <RollingFile name="RollingFileWarn" fileName="${WARN_LOG_FILE_NAME}/warn.log"
    50.                      filePattern="${WARN_LOG_FILE_NAME}/$${date:yyyy-MM}/warn-%d{yyyy-MM-dd}-%i.log">
    51.             <ThresholdFilter level="warn" onMatch="ACCEPT"
    52.                              onMismatch="DENY" />
    53.             <PatternLayout
    54.                     pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
    55.             <Policies>
    56.                 <TimeBasedTriggeringPolicy />
    57.                 <SizeBasedTriggeringPolicy size="2 kB" />
    58.             Policies>
    59.             
    60.             <DefaultRolloverStrategy max="20" />
    61.         RollingFile>
    62.  
    63.         <RollingFile name="RollingFileError" fileName="${ERROR_LOG_FILE_NAME}/error.log"
    64.                      filePattern="${ERROR_LOG_FILE_NAME}/$${date:yyyy-MM}/error-%d{yyyy-MM-dd-HH-mm}-%i.log">
    65.             <ThresholdFilter level="error" onMatch="ACCEPT"
    66.                              onMismatch="DENY" />
    67.             <PatternLayout
    68.                     pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
    69.             <Policies>
    70.                 
    71.                 <TimeBasedTriggeringPolicy interval="1"
    72.                                            modulate="true" />
    73.                 
    74.             Policies>
    75.         RollingFile>
    76.  
    77.     Appenders>
    78.  
    79.     
    80.     <Loggers>
    81.         
    82.         <logger name="org.springframework" level="INFO">logger>
    83.         <logger name="org.mybatis" level="INFO">logger>
    84.  
    85.         
    86.         <logger name="org.springframework" level="ERROR" />
    87.         <logger name="org.hibernate" level="ERROR" />
    88.         <logger name="org.apache.struts2" level="ERROR" />
    89.         <logger name="com.opensymphony.xwork2" level="ERROR" />
    90.         <logger name="org.jboss" level="ERROR" />
    91.  
    92.  
    93.         
    94.         <root level="all">
    95.             <appender-ref ref="Console" />
    96.             <appender-ref ref="RollingFileInfo" />
    97.             <appender-ref ref="RollingFileWarn" />
    98.             <appender-ref ref="RollingFileError" />
    99.         root>
    100.  
    101.     Loggers>
    102.  
    103. Configuration>

    Spring-context.xml

    这是一个Spring框架的配置文件，用于定义和管理Spring容器中的Bean。它使用XML格式来描述Bean的配置信息和依赖关系。通过这个配置文件，Spring框架可以自动扫描并加载应用程序中的Bean定义，并根据这些配置信息创建和管理Bean的实例。这样可以实现依赖注入、面向切面编程等特性

    1. "1.0" encoding="UTF-8"?>
    2. <beans xmlns="http://www.springframework.org/schema/beans"
    3.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    4.        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
    5.  
    6.     <import resource="classpath:SpringMVCzy.xml">import>
    7.  
    8. beans>

    Spring-mvc.xml

    这个配置文件是Spring MVC框架的XML配置文件，用于配置Spring MVC的各种组件和属性，其中做了这些操作：

    1. 扫描com.wh包及其子包下的控制器类，将它们注册为Spring MVC的控制器
    2. 开启注解驱动的Spring MVC功能，这意味着可以使用基于注解的方式进行请求映射、数据绑定等操作
    3. 配置了一个视图解析器（ViewResolver），用于将控制器返回的逻辑视图名解析为实际的视图对象。这里使用了JSP视图技术，并指定了JSP文件存放在/WEB-INF/jsp/目录下
    4. 注释掉了一些资源处理器的配置，这些配置可以用于处理静态资源（如图片、样式表、JavaScript文件等）的请求
    1. "1.0" encoding="UTF-8"?>
    2. <beans xmlns="http://www.springframework.org/schema/beans"
    3.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    4.        xmlns:context="http://www.springframework.org/schema/context"
    5.        xmlns:mvc="http://www.springframework.org/schema/mvc"
    6.        xmlns:aop="http://www.springframework.org/schema/aop"
    7.        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    8.       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
    9. http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
    10.     
    11.     <context:component-scan base-package="com.wh"/>
    12.  
    13.     
    14.     <mvc:annotation-driven />
    15.  
    16.     
    17.     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    18.         
    19.         <property name="viewClass"
    20.                   value="org.springframework.web.servlet.view.JstlView">property>
    21.         <property name="prefix" value="/WEB-INF/jsp/"/>
    22.         <property name="suffix" value=".jsp"/>
    23.     bean>
    24.  
    25.     
    26.  
    27.   
    28.     
    29.     <mvc:resources location="/common/" mapping="/jsp/**"/>
    30.  
    31.     <aop:aspectj-autoproxy/>
    32. beans>

    SpringMVCzy.xml

    这是一个Spring框架的XML配置文件，用于配置Spring应用程序的各种组件和属性。其中做了这些操作：

    1. 注解式开发：通过启用注解驱动的配置，允许使用注解来定义和管理Bean
    2. 组件扫描：通过标签指定要扫描的包路径，以自动发现并注册Bean
    3. 属性占位符：通过标签指定属性文件的位置，用于从外部属性文件中加载配置信息
    4. 数据源配置：通过标签配置数据库连接池，包括驱动程序类名、URL、用户名、密码等属性
    5. MyBatis整合：通过和配置MyBatis的SqlSessionFactory和Mapper接口扫描器，实现自动扫描和注册Mapper接口
    6. 事务管理：通过和配置事务管理器，将DataSource与事务管理器关联起来
    7. AOP支持：通过启用AspectJ自动代理，支持面向切面编程
    1. "1.0" encoding="UTF-8"?>
    2. <beans xmlns="http://www.springframework.org/schema/beans"
    3.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    4.        xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
    5.        xmlns:aop="http://www.springframework.org/schema/aop"
    6.        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
    7.     
    8.     
    9.     <context:annotation-config/>
    10.     
    11.     <context:component-scan base-package="com.wh"/>
    12.  
    13.     <context:property-placeholder location="classpath:jdbc.properties"/>
    14.  
    15.     <bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource"
    16.           destroy-method="close">
    17.         <property name="driverClassName" value="${jdbc.driver}"/>
    18.         <property name="url" value="${jdbc.url}"/>
    19.         <property name="username" value="${jdbc.username}"/>
    20.         <property name="password" value="${jdbc.password}"/>
    21.         
    22.         <property name="initialSize" value="10"/>
    23.         
    24.         <property name="maxTotal" value="100"/>
    25.         
    26.         <property name="maxIdle" value="50"/>
    27.         
    28.         <property name="minIdle" value="10"/>
    29.         
    30.         
    31.         <property name="maxWaitMillis" value="-1"/>
    32.     bean>
    33.  
    34.     
    35.     
    36.     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    37.         
    38.         <property name="dataSource" ref="dataSource"/>
    39.         
    40.         <property name="mapperLocations" value="classpath*:com/wh/**/mapper/*.xml"/>
    41.         
    42.         <property name="typeAliasesPackage" value="com/wh/**/model"/>
    43.         
    44.         <property name="plugins">
    45.             <array>
    46.                 <bean class="com.github.pagehelper.PageInterceptor">
    47.                     <property name="properties">
    48.                         <value>
    49.                             helperDialect=mysql
    50.                         value>
    51.                     property>
    52.                 bean>
    53.             array>
    54.         property>
    55.     bean>
    56.  
    57.     
    58.     
    59.     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    60.         
    61.         
    62.         <property name="basePackage" value="com/wh/**/mapper"/>
    63.         <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    64.     bean>
    65.  
    66.     <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    67.         <property name="dataSource" ref="dataSource" />
    68.     bean>
    69.     <tx:annotation-driven transaction-manager="transactionManager" />
    70.     <aop:aspectj-autoproxy/>
    71. beans>

    web.xml

    1. "1.0" encoding="UTF-8"?>
    2. <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
    3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    4.          xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
    5.          version="3.1">
    6.   <display-name>Archetype Created Web Applicationdisplay-name>
    7.   
    8.   
    9.   <context-param>
    10.     <param-name>contextConfigLocationparam-name>
    11.     <param-value>classpath:Spring-context.xmlparam-value>
    12.   context-param>
    13.   
    14.   <listener>
    15.     <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
    16.   listener>
    17.   
    18.  
    19.   
    20.   <filter>
    21.     <filter-name>encodingFilterfilter-name>
    22.     <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
    23.     <async-supported>trueasync-supported>
    24.     <init-param>
    25.       <param-name>encodingparam-name>
    26.       <param-value>UTF-8param-value>
    27.     init-param>
    28.   filter>
    29.   <filter-mapping>
    30.     <filter-name>encodingFilterfilter-name>
    31.     <url-pattern>/*url-pattern>
    32.   filter-mapping>
    33.  
    34.   
    35.   <servlet>
    36.     <servlet-name>SpringMVCservlet-name>
    37.     <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
    38.     
    39.     <init-param>
    40.       <param-name>contextConfigLocationparam-name>
    41.       <param-value>classpath:Spring-mvc.xmlparam-value>
    42.     init-param>
    43.     <load-on-startup>1load-on-startup>
    44.     
    45.     <async-supported>trueasync-supported>
    46.   servlet>
    47.   <servlet-mapping>
    48.     <servlet-name>SpringMVCservlet-name>
    49.     <url-pattern>/url-pattern>
    50.   servlet-mapping>
    51. web-app>

    三.工具类

    PagBean

    1. package com.wh.util;
    2.  
    3. import java.util.HashMap;
    4. import java.util.Map;
    5.  
    6. import javax.servlet.http.HttpServletRequest;
    7.  
    8. /**
    9.  * 分页工具类
    10.  *
    11.  */
    12. public class PageBean {
    13.  
    14. 	private int page = 1;// 页码
    15.  
    16. 	private int rows = 10;// 页大小
    17.  
    18. 	private int total = 0;// 总记录数
    19.  
    20. 	private boolean pagination = true;// 是否分页
    21. 	
    22. 	private String url; //保存上一次请求的URL
    23. 	
    24. 	private Map<String,String[]> paramMap = new HashMap<>();// 保存上一次请求的参数
    25. 	
    26. 	/**
    27. 	 * 初始化pagebean的，保存上一次请求的重要参数
    28. 	 * @param req
    29. 	 */
    30. 	public void setRequest(HttpServletRequest req) {
    31. //		1.1	需要保存上一次请求的URL
    32. 		this.setUrl(req.getRequestURL().toString());
    33. //		1.2	需要保存上一次请求的参数	bname、price
    34. 		this.setParamMap(req.getParameterMap());
    35. //		1.3	需要保存上一次请求的分页设置	pagination
    36. 		this.setPagination(req.getParameter("pagination"));
    37. //		1.4	需要保存上一次请求的展示条目数
    38. 		this.setRows(req.getParameter("rows"));
    39. //		1.5  初始化请求的页码	page
    40. 		this.setPage(req.getParameter("page"));
    41. 	}
    42. 	
    43. 	public void setPage(String page) {
    44. 		if(StringUtils.isNotBlank(page))
    45. 			this.setPage(Integer.valueOf(page));
    46. 	}
    47.  
    48. 	public void setRows(String rows) {
    49. 		if(StringUtils.isNotBlank(rows))
    50. 			this.setRows(Integer.valueOf(rows));
    51. 	}
    52.  
    53. 	public void setPagination(String pagination) {
    54. //		只有在前台jsp填写了pagination=false，才代表不分页
    55. 		if(StringUtils.isNotBlank(pagination))
    56. 			this.setPagination(!"false".equals(pagination));
    57. 	}
    58.  
    59.  
    60. 	public String getUrl() {
    61. 		return url;
    62. 	}
    63.  
    64. 	public void setUrl(String url) {
    65. 		this.url = url;
    66. 	}
    67.  
    68. 	public Map<String, String[]> getParamMap() {
    69. 		return paramMap;
    70. 	}
    71.  
    72. 	public void setParamMap(Map<String, String[]> paramMap) {
    73. 		this.paramMap = paramMap;
    74. 	}
    75.  
    76.  
    77.  
    78. 	public PageBean() {
    79. 		super();
    80. 	}
    81.  
    82. 	public int getPage() {
    83. 		return page;
    84. 	}
    85.  
    86. 	public void setPage(int page) {
    87. 		this.page = page;
    88. 	}
    89.  
    90. 	public int getRows() {
    91. 		return rows;
    92. 	}
    93.  
    94. 	public void setRows(int rows) {
    95. 		this.rows = rows;
    96. 	}
    97.  
    98. 	public int getTotal() {
    99. 		return total;
    100. 	}
    101.  
    102. 	public void setTotal(int total) {
    103. 		this.total = total;
    104. 	}
    105.  
    106. 	public void setTotal(String total) {
    107. 		this.total = Integer.parseInt(total);
    108. 	}
    109.  
    110. 	public boolean isPagination() {
    111. 		return pagination;
    112. 	}
    113.  
    114. 	public void setPagination(boolean pagination) {
    115. 		this.pagination = pagination;
    116. 	}
    117.  
    118. 	/**
    119. 	 * 获得起始记录的下标
    120. 	 * 
    121. 	 * @return
    122. 	 */
    123. 	public int getStartIndex() {
    124. 		return (this.page - 1) * this.rows;
    125. 	}
    126. 	
    127. 	/**
    128. 	 * 最大页
    129. 	 * @return
    130. 	 */
    131. 	public int maxPage() {
    132. //		total % rows == 0 ? total / rows : total / rows +1
    133. 		return this.total % this.rows == 0 ? this.total / this.rows : this.total / this.rows + 1;
    134. 	}
    135. 	
    136. 	/**
    137. 	 * 下一页
    138. 	 * @return
    139. 	 */
    140. 	public int nextPage() {
    141. //		如果当前页小于最大页，那就下一页为当前页+1；如果不小于，说明当前页就是最大页，那就无需+1
    142. 		return this.page < this.maxPage() ? this.page + 1 : this.page;
    143. 	}
    144. 	
    145. 	/**
    146. 	 * 上一页
    147. 	 * @return
    148. 	 */
    149. 	public int previousPage() {
    150. 		return this.page > 1 ? this.page - 1 : this.page;
    151. 	}
    152.  
    153. 	@Override
    154. 	public String toString() {
    155. 		return "PageBean [page=" + page + ", rows=" + rows + ", total=" + total + ", pagination=" + pagination + "]";
    156. 	}
    157.  
    158. }

    PageTag

    1. package com.wh.tag;
    2.  
    3. import com.wh.util.PageBean;
    4.  
    5. import javax.servlet.jsp.JspException;
    6. import javax.servlet.jsp.JspWriter;
    7. import javax.servlet.jsp.tagext.BodyTagSupport;
    8. import java.io.IOException;
    9. import java.util.Map;
    10. import java.util.Map.Entry;
    11. import java.util.Set;
    12.  
    13. public class PageTag extends BodyTagSupport{
    14. 	private PageBean pageBean;// 包含了所有分页相关的元素
    15. 	
    16. 	public PageBean getPageBean() {
    17. 		return pageBean;
    18. 	}
    19.  
    20. 	public void setPageBean(PageBean pageBean) {
    21. 		this.pageBean = pageBean;
    22. 	}
    23.  
    24. 	@Override
    25. 	public int doStartTag() throws JspException {
    26. //		没有标签体，要输出内容
    27. 		JspWriter out = pageContext.getOut();
    28. 		try {
    29. 			out.print(toHTML());
    30. 		} catch (IOException e) {
    31. 			e.printStackTrace();
    32. 		}
    33. 		return super.doStartTag();
    34. 	}
    35.  
    36. 	private String toHTML() {
    37. 		StringBuffer sb = new StringBuffer();
    38. //		隐藏的form表单---这个就是上一次请求下次重新发的奥义所在
    39. //		上一次请求的URL
    40. 		sb.append("
      ");
    41. 		sb.append("	");
    42. //		上一次请求的参数
    43. 		Map<String, String[]> paramMap = pageBean.getParamMap();
    44. 		if(paramMap != null && paramMap.size() > 0) {
    45. 			Set<Entry<String, String[]>> entrySet = paramMap.entrySet();
    46. 			for (Entry<String, String[]> entry : entrySet) {
    47. //				参数名
    48. 				String key = entry.getKey();
    49. //				参数值
    50. 				for (String value : entry.getValue()) {
    51. //					上一次请求的参数，再一次组装成了新的Form表单
    52. //					注意：page参数每次都会提交，我们需要避免
    53. 					if(!"page".equals(key)) {
    54. 						sb.append("	");
    55. 					}
    56. 				}
    57. 			}
    58. 		}
    59. 		sb.append("");
    60. 		
    61. //		分页条
    62. 		sb.append("
        ");
    63. 		sb.append("	
    64. );
  • sb.append(" href='javascript:gotoPage(1)'>首页
    • ");
  • sb.append("
  • );
  • sb.append(" href='javascript:gotoPage("+pageBean.previousPage()+")'><
    • ");// less than 小于号
  • // sb.append("
  • 1
    • ");
  • // sb.append("
  • 2
    • ");
  • sb.append("
  • "+pageBean.getPage()+"
    • ");
  • sb.append("
  • >
    • ");
  • sb.append("
  • 尾页
    • ");
  • sb.append("
  • 到第);
  • sb.append(" type='text' id='skipPage' name='' />页
    • ");
  • sb.append("
  • );
  • sb.append(" href='javascript:skipPage()'>确定
    • ");
  • sb.append("
  • 共"+pageBean.getTotal()+"条
    • ");
  • sb.append("");
  • // 分页执行的JS代码
  • sb.append("");
  • return sb.toString();
  • }
  • }

    • StringUtils

    1. package com.wh.util;
    2.  
    3. public class StringUtils {
    4. 	// 私有的构造方法，保护此类不能在外部实例化
    5. 	private StringUtils() {
    6. 	}
    7.  
    8. 	/**
    9. 	 * 如果字符串等于null或去空格后等于""，则返回true，否则返回false
    10. 	 * 
    11. 	 * @param s
    12. 	 * @return
    13. 	 */
    14. 	public static boolean isBlank(String s) {
    15. 		boolean b = false;
    16. 		if (null == s || s.trim().equals("")) {
    17. 			b = true;
    18. 		}
    19. 		return b;
    20. 	}
    21. 	
    22. 	/**
    23. 	 * 如果字符串不等于null或去空格后不等于""，则返回true，否则返回false
    24. 	 * 
    25. 	 * @param s
    26. 	 * @return
    27. 	 */
    28. 	public static boolean isNotBlank(String s) {
    29. 		return !isBlank(s);
    30. 	}
    31.  
    32. }

    切面类Aspect

    1. package com.wh.aop;
    2.  
    3. import com.github.pagehelper.PageHelper;
    4. import com.github.pagehelper.PageInfo;
    5. import com.wh.util.PageBean;
    6. import org.aspectj.lang.ProceedingJoinPoint;
    7. import org.aspectj.lang.annotation.Around;
    8. import org.aspectj.lang.annotation.Aspect;
    9. import org.springframework.stereotype.Component;
    10.  
    11. import java.util.List;
    12.  
    13. /**
    14.  * @author 王辉
    15.  * @site www.shihuihuila.com
    16.  * @create 2023-08-25 21:27
    17.  */
    18. @Aspect
    19. //代表当前类是切面类
    20. @Component
    21. //代表这个是交给Spring管理
    22. public class AspectPager {
    23.  
    24.  
    25.  
    26.     @Around("execution(* *..*Biz.*Pager(..))")
    27.     public Object invoke(ProceedingJoinPoint args) throws Throwable {
    28.         Object[] params = args.getArgs();
    29.         PageBean pageBean = null;
    30.         for (Object param : params) {
    31.             if (param instanceof PageBean) {
    32.                 pageBean = (PageBean) param;
    33.                 break;
    34.             }
    35.         }
    36.  
    37.         if (pageBean != null && pageBean.isPagination())
    38.             PageHelper.startPage(pageBean.getPage(), pageBean.getRows());
    39.  
    40.         Object list = args.proceed(params);
    41.  
    42.         if (null != pageBean && pageBean.isPagination()) {
    43.             PageInfo pageInfo = new PageInfo((List) list);
    44.             pageBean.setTotal(pageInfo.getTotal() + "");
    45.         }
    46.         return list;
    47.     }
    48. }

    四.逆向生成代码

    1.发布项目

    2.生成代码

    五.编写后台代码

    biz

    1. package com.wh.biz;
    2.  
    3. import com.wh.model.Cat;
    4. import com.wh.util.PageBean;
    5.  
    6. import java.util.List;
    7. public interface CatBiz {
    8.     int deleteByPrimaryKey(Integer cid);
    9.  
    10.     int insert(Cat record);
    11.  
    12.     int insertSelective(Cat record);
    13.  
    14.     List selectByPrimaryKey(Integer cid);
    15.  
    16.     List  selectLikePager(Cat cat,PageBean pageBean);
    17.  
    18.     int updateByPrimaryKeySelective(Cat record);
    19.  
    20.     int updateByPrimaryKey(Cat record);
    21. }
    1. package com.wh.biz;
    2.  
    3. import com.wh.mapper.CatMapper;
    4. import com.wh.model.Cat;
    5. import com.wh.util.PageBean;
    6. import org.springframework.beans.factory.annotation.Autowired;
    7. import org.springframework.stereotype.Service;
    8.  
    9. import java.util.List;
    10.  
    11. /**
    12.  * @author 王辉
    13.  * @site www.shihuihuila.com
    14.  * @create 2023-09-08 18:05
    15.  */
    16. @Service
    17. public class CatBizImpl implements CatBiz {
    18.     @Autowired
    19.     private CatMapper catBiz;
    20.     @Override
    21.     public int deleteByPrimaryKey(Integer cid) {
    22.         return catBiz.deleteByPrimaryKey(cid);
    23.     }
    24.  
    25.     @Override
    26.     public int insert(Cat record) {
    27.         return catBiz.insert(record);
    28.     }
    29.  
    30.     @Override
    31.     public int insertSelective(Cat record) {
    32.         return catBiz.insertSelective(record);
    33.     }
    34.  
    35.     @Override
    36.     public List selectByPrimaryKey(Integer cid) {
    37.         return catBiz.selectByPrimaryKey(cid);
    38.     }
    39.  
    40.     @Override
    41.     public List selectLikePager(Cat cat, PageBean pageBean) {
    42.  
    43.         return catBiz.selectLikePager(cat);
    44.     }
    45.  
    46.     @Override
    47.     public int updateByPrimaryKeySelective(Cat record) {
    48.         return catBiz.updateByPrimaryKeySelective(record
    49.         );
    50.     }
    51.  
    52.     @Override
    53.     public int updateByPrimaryKey(Cat record) {
    54.         return catBiz.updateByPrimaryKey(record);
    55.     }
    56. }

    web

    1. package com.wh.web;
    2.  
    3. import com.wh.biz.CatBiz;
    4. import com.wh.model.Cat;
    5. import com.wh.util.PageBean;
    6. import lombok.extern.slf4j.Slf4j;
    7. import org.springframework.beans.factory.annotation.Autowired;
    8. import org.springframework.stereotype.Controller;
    9. import org.springframework.ui.Model;
    10. import org.springframework.web.bind.annotation.RequestMapping;
    11.  
    12. import javax.servlet.http.HttpServletRequest;
    13. import java.util.List;
    14.  
    15. /**
    16.  * @author 王辉
    17.  * @site www.shihuihuila.com
    18.  * @create 2023-09-08 18:08
    19.  */
    20. @Controller
    21. @RequestMapping("/smvc3")
    22. @Slf4j
    23. public class CatController {
    24.     @Autowired
    25.     private CatBiz catBiz;
    26.     //增
    27.     @RequestMapping("/add")
    28.     public String add(Cat cat){
    29.         catBiz.insertSelective(cat);
    30.         return "redirect:list";
    31.     }
    32.     // 删
    33.     @RequestMapping("/del")
    34.     public String del(Cat cat){
    35.         catBiz.deleteByPrimaryKey(cat.getCid());
    36.         return "redirect:list";
    37.     }
    38.     // 改
    39.     @RequestMapping("/upd")
    40.     public String upd(Cat cat){
    41.         catBiz.updateByPrimaryKeySelective(cat);
    42.         return "redirect:list";
    43.     }
    44.     // 查
    45.     @RequestMapping("/list")
    46.     public String list(Cat cat, HttpServletRequest request){
    47.         PageBean pageBean=new PageBean();
    48.         List cats = catBiz.selectLikePager(cat, pageBean);
    49.         request.setAttribute("list",cats);
    50.         request.setAttribute("pageBean",pageBean);
    51.         return "index";
    52.     }
    53.     //数据回显
    54.     @RequestMapping("/preSave")
    55.     public String preSave(Cat cat, Model model){
    56.         if(cat!=null && cat.getCid()!=null){
    57.             List cats = catBiz.selectByPrimaryKey(cat.getCid());
    58.             model.addAttribute("c",cats.get(0));
    59.         }
    60.         return "edit";
    61.     }
    62.  
    63. }

    六.前台代码编写

    index.jsp

    1. <%@ page language="java" contentType="text/html; charset=UTF-8"
    2.          pageEncoding="UTF-8"%>
    3. <%@ taglib uri="http://jsp.veryedu.cn" prefix="z"%>
    4. <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
    5.         html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    6. <html>
    7. <head>
    8.     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    9.     <link
    10.             href="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/4.5.0/css/bootstrap.css"
    11.             rel="stylesheet">
    12.     <script
    13.             src="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/4.5.0/js/bootstrap.js">script>
    14.     <title>博客列表title>
    15.     <style type="text/css">
    16.         .page-item input {
    17.             padding: 0;
    18.             width: 40px;
    19.             height: 100%;
    20.             text-align: center;
    21.             margin: 0 6px;
    22.         }
    23.  
    24.         .page-item input, .page-item b {
    25.             line-height: 38px;
    26.             float: left;
    27.             font-weight: 400;
    28.         }
    29.  
    30.         .page-item.go-input {
    31.             margin: 0 10px;
    32.         }
    33.     style>
    34. head>
    35. <body>
    36. <form class="form-inline"
    37.       action="${pageContext.request.contextPath }/smvc3/list" method="post">
    38.     <div class="form-group mb-2">
    39.         <input type="text" class="form-control-plaintext" name="cname"
    40.                placeholder="请输入书籍名称">
    41.         
    42.         
    43.         <input name="pagination" value="false" type="hidden">
    44.     div>
    45.     <button type="submit" class="btn btn-primary mb-2">查询button>
    46.     <a class="btn btn-primary mb-2" href="${pageContext.request.contextPath }/smvc3/preSave">新增a>
    47. form>
    48.  
    49. <table class="table table-striped ">
    50.     <thead>
    51.     <tr>
    52.         <th scope="col">猫咪IDth>
    53.         <th scope="col">猫咪名字th>
    54.         <th scope="col">猫咪年龄th>
    55.         <th scope="col">操作th>
    56.     tr>
    57.     thead>
    58.     <tbody>
    59.     <c:forEach  var="b" items="${list }">
    60.         <tr>
    61.             <td>${b.cid }td>
    62.             <td>${b.cname }td>
    63.             <td>${b.age }td>
    64.             <td>
    65.                 <a href="${pageContext.request.contextPath }/smvc3/preSave?cid=${b.cid}">修改a>
    66.                 <a href="${pageContext.request.contextPath }/smvc3/del?cid=${b.cid}">删除a>
    67.             td>
    68.         tr>
    69.     c:forEach>
    70.     tbody>
    71. table>
    73. <z:page pageBean="${pageBean }">z:page>
    74.  
    75. body>
    76. html>

    edit.jsp

    1. <%@ page language="java" contentType="text/html; charset=UTF-8"
    2.          pageEncoding="UTF-8"%>
    3. html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    4. <html>
    5. <head>
    6.     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    7.     <title>编辑界面title>
    8. head>
    9. <body>
    10. <form action="${pageContext.request.contextPath }/${empty c ? 'smvc3/add' : 'smvc3/upd'}" method="post">
    11.     <c:forEach  var="b" items="${c }">
    12.     猫咪id:<input type="text" name="cid" value="${b.cid }"><br>
    13.     猫咪姓名:<input type="text" name="cname" value="${b.cname }"><br>
    14.     猫咪年龄:<input type="text" name="age" value="${b.age }"><br>
    15.     <input type="submit">
    16.     c:forEach>
    17. form>
    18. body>
    19. html>

      好啦，今天的分享就到这了，希望能够帮到你呢！😊😊  

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  • 原文地址：https://blog.csdn.net/m0_74315688/article/details/132763187