• SSM整合 Spring SprintMVC Mybatis

    目录

    1. Maven pom.xml

    2. 整合web.xml

    3. 整合SpringMVC

    4. 配置Spring

    5. 整合mybatis-config.xml

    1. Maven pom.xml

    spring四个核心包 spring-webmvc、spring-jdbc、spring-test、spring-aspects

    lombok

    jackson : POJO <-> JSON

    thymeleaf-spring5

    Mybatis 核心mybatis

    mybatis-spring

    Mybatis分页pagehelper

    连接池druid

    mysql驱动mysql-connector-java

    单元测试junit

    log4j 日志和slf4j-api

    logback日志ogback-classic

    servlet API（javax.servlet-api）在spring中前端控制器dispatchservlet继承的就是这个依赖里的httpservlet

    文件上传commons-fileupload

    1.  
    2.     <properties>
    3.         <maven.compiler.source>8maven.compiler.source>
    4.         <maven.compiler.target>8maven.compiler.target>
    6.         <spring.version>5.3.1spring.version>
    7.     properties>
    8.  
    9.     <dependencies>
    10.         
    11.         <dependency>
    12.             <groupId>org.springframeworkgroupId>
    13.             <artifactId>spring-webmvcartifactId>
    14.             <version>${spring.version}version>
    15.         dependency>
    16.         
    17.         <dependency>
    18.             <groupId>org.springframeworkgroupId>
    19.             <artifactId>spring-jdbcartifactId>
    20.             <version>${spring.version}version>
    21.         dependency>
    22.         
    23.         <dependency>
    24.             <groupId>org.springframeworkgroupId>
    25.             <artifactId>spring-aspectsartifactId>
    26.             <version>${spring.version}version>
    27.         dependency>
    28.         <dependency>
    29.             <groupId>org.springframeworkgroupId>
    30.             <artifactId>spring-testartifactId>
    31.             <version>${spring.version}version>
    32.             <scope>testscope>
    33.         dependency>
    34.  
    35.         <dependency>
    36.             <groupId>org.projectlombokgroupId>
    37.             <artifactId>lombokartifactId>
    38.             <version>1.16.10version>
    39.         dependency>
    40.  
    41.  
    42.  
    43.         
    44.         <dependency>
    45.             <groupId>com.fasterxml.jackson.coregroupId>
    46.             <artifactId>jackson-databindartifactId>
    47.             <version>2.12.1version>
    48.         dependency>
    49.  
    50.         
    51.         <dependency>
    52.             <groupId>org.thymeleafgroupId>
    53.             <artifactId>thymeleaf-spring5artifactId>
    54.             <version>3.0.12.RELEASEversion>
    55.         dependency>
    56.  
    57.  
    58.  
    59.  
    60.         
    61.         <dependency>
    62.             <groupId>org.mybatisgroupId>
    63.             <artifactId>mybatisartifactId>
    64.             <version>3.5.7version>
    65.         dependency>
    66.  
    67.         
    68.         <dependency>
    69.             <groupId>com.github.pagehelpergroupId>
    70.             <artifactId>pagehelperartifactId>
    71.             <version>5.2.0version>
    72.         dependency>
    73.  
    74.         
    75.         <dependency>
    76.             <groupId>org.mybatisgroupId>
    77.             <artifactId>mybatis-springartifactId>
    78.             <version>2.0.6version>
    79.         dependency>
    80.  
    81.         
    82.         <dependency>
    83.             <groupId>com.alibabagroupId>
    84.             <artifactId>druidartifactId>
    85.             <version>1.0.9version>
    86.         dependency>
    87.  
    88.         
    89.         <dependency>
    90.             <groupId>mysqlgroupId>
    91.             <artifactId>mysql-connector-javaartifactId>
    92.             <version>8.0.16version>
    93.         dependency>
    94.  
    95.         
    96.         <dependency>
    97.             <groupId>junitgroupId>
    98.             <artifactId>junitartifactId>
    99.             <version>4.12version>
    100.             <scope>testscope>
    101.         dependency>
    102.  
    103.         
    104.         <dependency>
    105.             <groupId>log4jgroupId>
    106.             <artifactId>log4jartifactId>
    107.             <version>1.2.17version>
    108.         dependency>
    109.  
    110.         
    111.         <dependency>
    112.             <groupId>org.slf4jgroupId>
    113.             <artifactId>slf4j-apiartifactId>
    114.             <version>1.7.36version>
    115.         dependency>
    116.  
    117.  
    118.         
    119.         <dependency>
    120.             <groupId>ch.qos.logbackgroupId>
    121.             <artifactId>logback-classicartifactId>
    122.             <version>1.2.3version>
    123.         dependency>
    124.  
    125.         
    126.         <dependency>
    127.             <groupId>javax.servletgroupId>
    128.             <artifactId>javax.servlet-apiartifactId>
    129.             <version>3.1.0version>
    130.             <scope>providedscope>
    131.         dependency>
    132.  
    133.         
    134.         <dependency>
    135.             <groupId>commons-fileuploadgroupId>
    136.             <artifactId>commons-fileuploadartifactId>
    137.             <version>1.3.1version>
    138.         dependency>
    139.         
    140.         <dependency>
    141.             <groupId>com.github.pagehelpergroupId>
    142.             <artifactId>pagehelperartifactId>
    143.             <version>5.2.0version>
    144.         dependency>
    145.     dependencies>

    2. 整合web.xml

    1. 编码控制器（请求响应编码）

    2. 前端控制器

    3. 监听器listener，配置Spring监听器：服务器启动的时候加载Spring的配置文件

    4. 声明spring配置文件位置

    5. HiddenHttpMethodFilter 设置处理请球方法put和delete

    5. HiddenHttpMethodFilter 设置处理请球方法put和delete

    

    
    
    

    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_4_0.xsd"
    5.          version="4.0">
    6.  
    7.  
    8.  
    9.  
    11.     
    12.     <filter>
    13.         <filter-name>CharacterEncodingFilterfilter-name>
    14.         <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
    15.         <init-param>
    16.             <param-name>encondingparam-name>
    17.             <param-value>UTF-8param-value>
    18.         init-param>
    19.         <init-param>
    20.             <param-name>forceResponseEncodingparam-name>
    21.             <param-value>trueparam-value>
    22.         init-param>
    23.     filter>
    24.     <filter-mapping>
    25.         <filter-name>CharacterEncodingFilterfilter-name>
    26.         <url-pattern>/*url-pattern>
    27.     filter-mapping>
    28.  
    30.  
    31.  
    32.     <servlet>
    33.         <servlet-name>DispatcherServletservlet-name>
    34.         <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
    35.         <init-param>
    36.             <param-name>contextConfigLocationparam-name>
    37.             <param-value>classpath:springMVC.xmlparam-value>
    38.         init-param>
    39.         <load-on-startup>1load-on-startup>
    40.     servlet>
    41.     <servlet-mapping>
    42.         <servlet-name>DispatcherServletservlet-name>
    43.         <url-pattern>/url-pattern>
    44.     servlet-mapping>
    45.  
    46.  
    47.  
    48.  
    49.     
    50.     <listener>
    51.         <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
    52.     listener>
    53.  
    54.     
    55.     <context-param>
    56.         <param-name>contextConfigLocationparam-name>
    57.         <param-value>classpath:spring.xmlparam-value>
    58.     context-param>
    59.  
    60.     
    61.  
    62.     <filter>
    63.         <filter-name>HiddenHttpMethodFilterfilter-name>
    64.         <filter-class>org.springframework.web.filter.HiddenHttpMethodFilterfilter-class>
    65.     filter>
    66.     <filter-mapping>
    67.         <filter-name>HiddenHttpMethodFilterfilter-name>
    68.         <url-pattern>/*url-pattern>
    69.     filter-mapping>
    70. web-app>

    3. 整合SpringMVC

    1. 扫描组件context:component-scan

    2. thymeleaf

    3. mvc:view-controller视图控制器

    4. mvc:default-servlet-handler处理静态资源，加上静态资源static后要重新在maven中打包

    5. mvc:annotation-driven开启mvc注解驱动

    6. multipartResolver 必须通过文件解析器的解析才能将通过表单上传的文件转换为MultipartFile对象

    7. 拦截器

    8. 异常处理器

    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.        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd">
    7.  
    8.  
    10.  
    11.  
    13.     <context:component-scan base-package="com.zt">context:component-scan>
    14.  
    16.  
    17.     <bean id="viewResolver" class="org.thymeleaf.spring5.view.ThymeleafViewResolver">
    18.         <property name="order" value="1"/>   
    19.         <property name="characterEncoding" value="UTF-8"/>
    20.         <property name="templateEngine">
    21.             <bean class="org.thymeleaf.spring5.SpringTemplateEngine">
    22.                 <property name="templateResolver">
    23.                     <bean class="org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver">
    24.                         
    25.                         <property name="prefix" value="/WEB-INF/templates/"/>
    26.                         
    27.                         <property name="suffix" value=".html"/>
    28.                         <property name="templateMode" value="HTML5"/>
    29.                         <property name="characterEncoding" value="UTF-8" />
    30.                     bean>
    31.                 property>
    32.             bean>
    33.         property>
    34.     bean>
    35.  
    37.     
    38.     <mvc:default-servlet-handler>mvc:default-servlet-handler>
    39.     
    40.     <mvc:annotation-driven>mvc:annotation-driven>
    42.     <mvc:view-controller path="/" view-name="index"/>
    43.  
    44.     
    45.     <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">bean>
    46.  
    48.  
    49.  
    51. beans>

    4. 配置Spring

    1. 扫描组件，除控制层,(将出去控制层以外的所有组件，都交给sping.xml管理，控制层是springmvc管理)

    2. 引入数据源jdbc.properties

             

    jdbc.url=jdbc:mysql://localhost:3306/ibatis?useSSL=false&serverTimezone=UTC&characterEncoding=utf-8
jdbc.user=root
jdbc.password=761311
jdbc.driver=com.mysql.cj.jdbc.Driver

    3. 配置数据源（这一部分也可以在mybatis-config中配置）

    4. 配置、开启事务管理器

    使用#Transctional注解标识的所有方法和类 进行事务管理

    5. 将SqlSessionFactoryBean配置到IOC容器中，就可以在容器中获取SqlSessionFactoryBean的对象。

    6. 获取mybatis-config.xml配置（这一部分在spring和mybatis-config中都可以配置）

    配置上面的数据源、设置typeAliasesPackage 实体类包中的别名

    7. 分页插件（这一部分也可以在mybatis-config中配置）

    8. 引入mapper文件，mapper扫描（在mybatis-config中就不用引入映射文件了）

    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:util="http://www.springframework.org/schema/util"
    5.               xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
    6.               xsi:schemaLocation="http://www.springframework.org/schema/beans
    7.        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
    8.        http://www.springframework.org/schema/util
    9.        https://www.springframework.org/schema/util/spring-util.xsd
    10.        http://www.springframework.org/schema/context
    11.        http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
    12.  
    13.  
    14.  
    16.  
    17.     <context:component-scan base-package="com.zt.ssm">
    18.         <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    19.     context:component-scan>
    20.  
    21.  
    23.     
    24.     <context:property-placeholder location="classpath:jdbc.properties">context:property-placeholder>
    25.  
    26.  
    28.  
    29.     <bean id="transctionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    30.         <property name="dataSource" ref="dataSource">property>
    31.     bean>
    33.     <tx:annotation-driven/>
    34.  
    35.     
    36.     <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
    37.  
    38.         
    39.         <property name="driverClassName" value="${jdbc.driver}">property>
    40.         <property name="url" value="${jdbc.url}">property>
    41.         <property name="username" value="${jdbc.user}">property>
    42.         <property name="password" value="${jdbc.password}">property>
    43.  
    44.         
    45.         <property name="initialSize" value="10">property>
    46.         <property name="maxActive" value="16">property>  
    47.     bean>
    48.  
    50.     <bean class="org.mybatis.spring.SqlSessionFactoryBean">
    52.         <property name="configLocation" value="classpath:mybatis-config.xml">property>
    54.         <property name="dataSource" ref="dataSource">property>
    56.         <property name="typeAliasesPackage" value="com.zt.ssm.pojo">property>
    57.  
    60.         
    67.      bean>
    68.  
    71.     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    72.         <property name="basePackage" value="com.zt.ssm.mapper">property>
    73.     bean>
    74.  
    75. beans>

    5. 整合mybatis-config.xml

    1. 引入jdbc.properties

    2. setting-mapUnderscoreToCamelCase将下划线映射为驼峰 解决数据库和属性名不一致问题

    3. setting-lazyLoadingEnabled/aggressiveLazyLoading延迟加载 按需加载

    4. typeAliases设置当前实体类的别名(spring可以设置)

    5. 配置连接数据库环境

    6.  引入 MyBatis 的映射文件 : 存放SQL语句 和 POJO的映射方式

    1. "1.0" encoding="UTF-8" ?>
    2. configuration
    3.         PUBLIC "-//com.zt.mybatis.org//DTD Config 3.0//EN"
    4.         "http://mybatis.org/dtd/mybatis-3-config.dtd">
    5.  
    6. <configuration>
    7.  
    8.  
    12.  
    14.  
    15.  
    16.  
    17.  
    18.     <settings>
    20.         <setting name="mapUnderscoreToCamelCase" value="true"/>
    22.         <setting name="lazyLoadingEnabled" value="true"/>
    24.         <setting name="aggressiveLazyLoading" value="false"/>
    25.     settings>
    26.  
    27.  
    32.  
    33.  
    34.     <plugins>
    35.         
    36.         <plugin interceptor="com.github.pagehelper.PageInterceptor">plugin>
    37.     plugins>
    38.  
    39.     
    42.  
    45.  
    55.  
    56.     
    61. configuration>

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  • 原文地址：https://blog.csdn.net/qq_41950447/article/details/128033971