【SSM Spring 5.0.2 SpringMVC Mybatis Eclipse IDEA Maven】SSM框架整合記錄 2019_6_30

官方资料

Mybatis整合官方文档
Mybatis整合官方Demo

SSM需要的Jar列表(含Maven)

jar包

Spring AOP IOC 				12
SpringMVC 					2
Spring依赖日志包 			1
Mybatis及Mybatis-Spring整合	2
MySQL-Connector 			1
JSTL 						2

com.springsource.net.sf.cglib-2.2.0.jar
com.springsource.org.aopalliance-1.0.0.jar
com.springsource.org.aspectj.weaver-1.6.8.RELEASE.jar

commons-logging-1.1.3.jar

mybatis-3.4.1.jar
mybatis-spring-1.3.0.jar

mysql-connector-java-8.0.16.jar

spring-aop-4.0.0.RELEASE.jar
spring-aspects-4.0.0.RELEASE.jar
spring-beans-4.0.0.RELEASE.jar
spring-context-4.0.0.RELEASE.jar
spring-core-4.0.0.RELEASE.jar
spring-expression-4.0.0.RELEASE.jar
spring-jdbc-4.0.0.RELEASE.jar
spring-orm-4.0.0.RELEASE.jar
spring-tx-4.0.0.RELEASE.jar

spring-web-4.0.0.RELEASE.jar
spring-webmvc-4.0.0.RELEASE.jar

taglibs-standard-impl-1.2.1.jar
taglibs-standard-spec-1.2.1.jar

Maven坐标

<properties>
    <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
    <maven.compiler.source>1.8maven.compiler.source>
    <maven.compiler.target>1.8maven.compiler.target>
    <spring.version>5.0.2.RELEASEspring.version>
    <slf4j.version>1.6.6slf4j.version>
    <log4j.version>1.2.12log4j.version>
    <mysql.version>5.1.6mysql.version>
    <mybatis.version>3.4.5mybatis.version>
  properties>

  <dependencies>
    
    <dependency>
      <groupId>org.aspectjgroupId>
      <artifactId>aspectjweaverartifactId>
      <version>1.6.8version>
    dependency>

    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-aopartifactId>
      <version>${spring.version}version>
    dependency>

    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-contextartifactId>
      <version>${spring.version}version>
    dependency>

    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-webartifactId>
      <version>${spring.version}version>
    dependency>

    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-webmvcartifactId>
      <version>${spring.version}version>
    dependency>

    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-testartifactId>
      <version>${spring.version}version>
    dependency>

    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-txartifactId>
      <version>${spring.version}version>
    dependency>

    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-jdbcartifactId>
      <version>${spring.version}version>
    dependency>

    <dependency>
      <groupId>junitgroupId>
      <artifactId>junitartifactId>
      <version>4.12version>
      <scope>compilescope>
    dependency>

    <dependency>
      <groupId>mysqlgroupId>
      <artifactId>mysql-connector-javaartifactId>
      <version>${mysql.version}version>
    dependency>

    <dependency>
      <groupId>javax.servletgroupId>
      <artifactId>servlet-apiartifactId>
      <version>2.5version>
      <scope>providedscope>
    dependency>

    <dependency>
      <groupId>javax.servlet.jspgroupId>
      <artifactId>jsp-apiartifactId>
      <version>2.0version>
      <scope>providedscope>
    dependency>

    <dependency>
      <groupId>jstlgroupId>
      <artifactId>jstlartifactId>
      <version>1.2version>
    dependency>

    
    <dependency>
      <groupId>log4jgroupId>
      <artifactId>log4jartifactId>
      <version>${log4j.version}version>
    dependency>

    <dependency>
      <groupId>org.slf4jgroupId>
      <artifactId>slf4j-apiartifactId>
      <version>${slf4j.version}version>
    dependency>

    <dependency>
      <groupId>org.slf4jgroupId>
      <artifactId>slf4j-log4j12artifactId>
      <version>${slf4j.version}version>
    dependency>

    
    <dependency>
      <groupId>org.mybatisgroupId>
      <artifactId>mybatisartifactId>
      <version>${mybatis.version}version>
    dependency>

    <dependency>
      <groupId>org.mybatisgroupId>
      <artifactId>mybatis-springartifactId>
      <version>1.3.0version>
    dependency>

    <dependency>
      <groupId>c3p0groupId>
      <artifactId>c3p0artifactId>
      <version>0.9.1.2version>
      <type>jartype>
      <scope>compilescope>
    dependency>
  dependencies>

配置步骤

Mybatis相关配置文件

mybatis-config.xml

Mybatis全局配置文件
此文件通过在Spring配置文件ApplicationContext中的
SqlSessionFactoryBean对象的属性来指定位置。

注：整合后所有Bean对象交给Spring IOC配置
配置数据源的工作交给SpringIOC创建连接池对象附带数据源属性，Mapper配置也转移到Spring配置文件中
其他全局配置，例如“typeAlias的package：为某个包下所有类批量起别名”可作为SQLSessionFactory的属性在Spring 标签中配置

这样就不需要在Mybatis-config.xml配置大量bean(包括mapper)对象
只留一些Mybatis Settings配置，例如数据库标识符别名等。

BeanXXXmapper.xml

对每个JavaBean、POJO的独立SQL(CRUD)映射文件

dbconfig.properties

数据库配置文件
注：开启多条SQL合并执行 ?allowMultiQueries=true

Spring相关配置文件

web.xml

标明Spring配置文件路径 （IOC容器与Web服务器一同启动）
标明SpringMVC配置文件路径 （令Servlet与Web服务器一同启动）

提示：如果在eclipse中安裝了Spring IDE插件則這裏的Spring和SpringMVC標簽
直接Alt+/選擇#ContextLoaderListener #dispatcherservlet即可添加

<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_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>MyBatis_06_ssmdisplay-name>
  
  	
	<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>springservlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
		<load-on-startup>1load-on-startup>
	servlet>

	
	<servlet-mapping>
		<servlet-name>springservlet-name>
		<url-pattern>/url-pattern>
	servlet-mapping>
  
web-app>

默认约定，如果不指名Spring配置路径，以及SpringMVC配置路径，
则Spring配置默认路径：/WEB-INF/applicationContext.xml
SpringMVC配置默认路径：/WEB-INF/servlet-name-servlet.xml

如果想修改SpringMVC配置文件路径则在加入以下内容

	
    <init-param>
        <param-name>contextConfigLocationparam-name>
        <param-value>classpath:springmvc.xmlparam-value>
    init-param>

applicationContext.xml

Spring配置文件
创建Spring Bean Configuration File类型文件，在config(SourceFolder)路径下
点击xml下方的NameSpaces标签页，可以选择自动注入的名称空间
加入context、tx、mybatis-spirng namespace

	

	
	<context:component-scan base-package="com.atguigu.mybatis">
		<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
	context:component-scan>

	
	<mybatis-spring:scan base-package="com.atguigu.mybatis.dao"/>
	
	
	
	<context:property-placeholder location="classpath:dbconfig.properties"/>
	<bean id="comboPooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
		<property name="driverClass" value="${jdbc.driver}"/>       
		<property name="jdbcUrl" value="${jdbc.url}"/>       
		<property name="user" value="${jdbc.username}"/>       
		<property name="password" value="${jdbc.password}"/> 
	bean>
	
	
	<bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		
		<property name="dataSource" ref="comboPooledDataSource">property>
	bean>
	
	
	<tx:annotation-driven transaction-manager="dataSourceTransactionManager"/>
	
	
	
	
	<bean class="org.mybatis.spring.SqlSessionFactoryBean">
		
		<property name="dataSource" ref="comboPooledDataSource">property>
		
		<property name="configLocation" value="classpath:mybatis-config.xml">property>
		
		<property name="mapperLocations" value="classpath:mybatis/mapper/*.xml">property>
	bean>

dbconfig.properties

创建数据库配置文件

jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/test?serverTimezone=GMT%2B8
jdbc.username=******
jdbc.password=******

SpringMVC相关配置

spring-servlet.xml

创建Spring Bean Configuration File类型文件
在WebContent的WEB-INF目录下与web.xml同级
加入Context namespace以及Mvc namespace

	

	
	<context:component-scan base-package="com.atguigu.mybatis" use-default-filters="false">
		<context:include-filter type="annotation" expression=" org.springframework.stereotype.Controller"/>
	context:component-scan>
	
	
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		
		<property name="prefix" value="/WEB-INF/pages/">property>
		<property name="suffix" value=".jsp">property>
	bean>
	
	
	<mvc:annotation-driven>mvc:annotation-driven>
	<mvc:default-servlet-handler/>

Mybatis用Mapper interface+XML 代替了QueryRunner.java,并将SQL写在XML中
解决了SQL语句与Java文件的强耦合问题，并且减少大量创建完全实现类的工作

SpringMVC解决页面跳转及处理页面请求request
过程是：页面请求controller，controller调用Service，Service调用Dao的Mapper
SpringMVC解决了Servlet的耦合，以及减少大量重复代码
并在拦截器功能上复现了Spring AOP思想

注意：所有的class=""，一定要！！！看清！！！不要有空格！！！