• 基础SSM框架搭建

    SSM框架

    完整的框架

    在这里插入图片描述

    • config：放置配置相关的信息类

    • constant：放置常量接口类

    • controller：放置前端控制器，主要是提供出去的跟前端交互的接口(有的人也习惯叫web/action层等)

    • dao：放置数据访问层(里面的都是操作数据库相关的类)

    • entity：实体类，就是和数据库表一一对应的类

    • service：数据服务层，主要写各种实现功能的接口

    • service.impl:数据服务的实现类，一般service里是interface名称和结构，在service.impl中implements - service中的interface，内部有所有具体的实现内容

    • utils：放置各种公共的方法和类

    一、注入依赖

    		 <dependency>
      <groupId>junitgroupId>
      <artifactId>junitartifactId>
      <version>3.8.1version>
      <scope>testscope>
    dependency>
    <dependency>
      <groupId>javax.servletgroupId>
      <artifactId>javax.servlet-apiartifactId>
      <version>4.0.1version>
      <scope>providedscope>
    dependency>
    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-webmvcartifactId>
      <version>4.3.23.RELEASEversion>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-jdbcartifactId>
      <version>4.3.23.RELEASEversion>
    dependency>

    
    <dependency>
      <groupId>mysqlgroupId>
      <artifactId>mysql-connector-javaartifactId>
      <version>8.0.26version>
    dependency>

    
    
    <dependency>
      <groupId>com.mchangegroupId>
      <artifactId>c3p0artifactId>
      <version>0.9.5.5version>
    dependency>

    
    <dependency>
      <groupId>javax.servletgroupId>
      <artifactId>jstlartifactId>
      <version>1.2version>
    dependency>

    
    <dependency>
      <groupId>com.alibabagroupId>
      <artifactId>fastjsonartifactId>
      <version>1.2.47version>
    dependency>
    
    <dependency>
      <groupId>log4jgroupId>
      <artifactId>log4jartifactId>
      <version>1.2.17version>
    dependency>

    
    
    <dependency>
      <groupId>org.mybatisgroupId>
      <artifactId>mybatisartifactId>
      <version>3.5.7version>
    dependency>



    
    
    <dependency>
      <groupId>org.mybatisgroupId>
      <artifactId>mybatis-springartifactId>
      <version>2.0.6version>
    dependency>
        

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    二、配置web.xml

    
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>spring-springMVC20221121display-name>

  
  <welcome-file-list>
    <welcome-file>login.jspwelcome-file>
  welcome-file-list>

  
  <filter>
    <filter-name>characterEncodingFilterfilter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
    <init-param>
      <param-name>encodingparam-name>
      <param-value>UTF-8param-value>
    init-param>
  filter>
  <filter-mapping>
    <filter-name>characterEncodingFilterfilter-name>
    <url-pattern>/*url-pattern>
  filter-mapping>

  
  <context-param>
    <param-name>contextConfigLocationparam-name>
    <param-value>classpath:applicationContext.xmlparam-value>
  context-param>

  
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
  listener>

  
  <servlet>
    <servlet-name>springmvcservlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
    <init-param>
      <param-name>contextConfigLocationparam-name>
      <param-value>classpath:springmvc-common.xmlparam-value>
    init-param>
  servlet>

  <servlet-mapping>
    <servlet-name>springmvcservlet-name>
    <url-pattern>/url-pattern>
  servlet-mapping>


web-app>

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    三、springmvc-common.xml配置

    
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="
        http://www.springframework.org/schema/beans 
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context-4.3.xsd
        http://www.springframework.org/schema/aop
        https://www.springframework.org/schema/aop/spring-aop-4.3.xsd
        http://www.springframework.org/schema/mvc
        https://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
        ">
	
	<context:component-scan
		base-package="com.wk">context:component-scan>


	<bean id="conversionServiceFactoryBean" class="org.springframework.context.support.ConversionServiceFactoryBean">
		<property name="converters">
			<set>
				<bean class="com.wk.convert.MyConverter">bean>
			set>
		property>
	bean>

	
	<mvc:annotation-driven conversion-service="conversionServiceFactoryBean">

	mvc:annotation-driven>

	
	<bean
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		
		<property name="prefix" value="/">property>
		
		<property name="suffix" value=".jsp">property>
	bean>

	



beans>

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    四、mybatis-config.xml配置

    
DOCTYPE configuration
 PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
 "https://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
	<mappers>
		
		
		<mapper resource="com/wk/dao/UserDao.xml" />
	mappers>
configuration>


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    五、log4j.properties日志文件配置

    #LOG_DIR:/usr/local/.../logs\
LOG_DIR = E:\\logs
#Level:ERROR,WARN,INFO,DEBUG
log4j.rootLogger = INFO,Console,File
log4j.appender.Console = org.apache.log4j.ConsoleAppender
log4j.appender.Console.Threshold = DEBUG
log4j.appender.Console.ImmediateFlush = true
log4j.appender.Console.Target = System.out
log4j.appender.Console.layout = org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n
log4j.appender.File = org.apache.log4j.DailyRollingFileAppender
log4j.appender.File.Threshold = INFO
log4j.appender.File.ImmediateFlush = true
log4j.appender.File.Append = true
log4j.appender.File.DatePattern = '_'yyyy-MM-dd'.log'
log4j.appender.File.encoding=UTF-8
log4j.appender.File.File = ${LOG_DIR}/info
log4j.appender.File.layout = org.apache.log4j.PatternLayout
log4j.appender.File.layout.ConversionPattern = [%-5p][%d{ISO8601}]%m%n

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    六、jdbc.properties连接信息

    根据个人连接数据库信息更改

    a=jdbc:mysql://localhost:3306/test?characterEncoding=UTF-8
b=root
c=123
d=com.mysql.cj.jdbc.Driver

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    七、applicationContext.xml配置

    
<beans xmlns="http://www.springframework.org/schema/beans"
	   xmlns:context="http://www.springframework.org/schema/context"
	   xmlns:aop="http://www.springframework.org/schema/aop"
	   xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="
        http://www.springframework.org/schema/beans 
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context-4.3.xsd
        http://www.springframework.org/schema/aop
        https://www.springframework.org/schema/aop/spring-aop-4.3.xsd
        http://www.springframework.org/schema/tx
        https://www.springframework.org/schema/tx/spring-tx-4.3.xsd
        "
       >
		
		<context:component-scan base-package="com.wk">context:component-scan>

		
		
		
		
		<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
		
			<property name="locations">
				<list>
					<value>classpath:jdbc.propertiesvalue>
				list>
			
			
			property>
		bean>
		
		
		
		<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
			
			<property name="user" value="${b}">property>
			
			<property name="password" value="${c}">property>
			
			<property name="driverClass" value="${d}">property>
			
			<property name="jdbcUrl" value="${a}">property>
		
		bean>
		
		
		<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
			<property name="dataSource" ref="dataSource">property>
			<property name="configLocation" value="classpath:mybatis-config.xml">property>
		
		bean>
		
		
		<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
			<property name="basePackage" value="com.wk.dao">property>
			<property name="sqlSessionFactoryBeanName" value="sqlSessionFactoryBean">property>
		bean>

		
		<bean id="tx" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
			<property name="dataSource" ref="dataSource">property>
		bean>
		<tx:annotation-driven transaction-manager="tx"/>				
beans>

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    八、UserDao.xml案例

    
DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "https://mybatis.org/dtd/mybatis-3-mapper.dtd">



<mapper namespace="com.wk.dao.UserDao">

    <insert id="addUser" parameterType="com.wk.entity.User">
        insert into tb_user (uname,upwd,email,phone,addr,birth)
        values(#{uname},#{upwd},#{email},#{phone},#{addr},#{birth})
    insert>

mapper>

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    九、UserService接口

    public interface UserService {
    void insertUser(User user);
}

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    十、UserServiceImpl实现

    @Service
public class UserServiceImpl implements UserService {
	
	@Autowired
	private UserDao userDao;
	
	@Override
	public void insertUser(User user) {
		userDao.addUser(user);
	}

}


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    十一、MyConverter

    public class MyConverter implements Converter<String, Date>{

	@Override
	public Date convert(String source) {
		
		SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
		
		try {
			Date d=sdf.parse(source);
			return d;
		} catch (ParseException e) {
			
			e.printStackTrace();
			return null;
		}
	}

}

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    十二、UserController

    @Controller
@RequestMapping("/user")
public class UserController {

	@Autowired
	private UserService userService;
	
	@RequestMapping("/reg")
	public String reg(User user) {
		
		userService.insertUser(user);
		
		return "login";
	}
}


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  • 原文地址：https://blog.csdn.net/qq_54351538/article/details/127982083