SSM整合(XML方式)

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这篇博客详细介绍了如何使用XML方式整合Spring、Spring MVC和Mybatis（SSM）框架。从创建Maven Web项目开始，逐步讲解了配置文件的设置，包括web.xml、spring配置文件以及数据库连接池Druid的配置。此外，还涵盖了添加项目依赖、创建配置文件的各个步骤，并提供了测试类以验证整合的正确性。

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一、基本步骤(idea跳过)

创建maven web项目（打包方式war包）
生成部署描述文件 web.xml(全注解方式不需要)
修改项目编码为utf-8（假如工作区编码为UTF-8,则无需修改）
设置项目targeted runtimes (Tomcat)：暂时不用tomcat插件
修改项目project facets (jdk1.8)

二、添加项目依赖

添加Druid 连接池(两个依赖:mysql驱动，druid库文件)
添加Mybatis 框架(三个依赖:mybatis,mybatis-spring,spring-jdbc)
添加Spring MVC 模块环境(一个依赖spring-webmvc)
添加 jackson库（用于将对象转换为json串）
添加Junit 单元测试依赖
添加mysql-connector
log4j2
servlet api

三、创建配置文件
配置文件总图

1 web.xml

<?xml version="1.0" encoding="UTF-8"?>
<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="yhmis" version="2.5">
  <display-name>jtsysProject</display-name>
  <servlet>
    <servlet-name>frontController</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring-configs.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>frontController</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>
</web-app>

2 spring-configs.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans default-lazy-init="true"
       xmlns="http://www.springframework.org/schema/beans"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:util="http://www.springframework.org/schema/util"
       xmlns:jpa="http://www.springframework.org/schema/data/jpa"
       xsi:schemaLocation="
       http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
       http://www.springframework.org/schema/mvc
       http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx-4.3.xsd
       http://www.springframework.org/schema/aop
       http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
       http://www.springframework.org/schema/util
       http://www.springframework.org/schema/util/spring-util-4.3.xsd
       http://www.springframework.org/schema/data/jpa
       http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
       http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-4.3.xsd">

    <import resource="classpath:spring-repository.xml"/>
    <import resource="classpath:spring-service.xml"/>
    <import resource="classpath:spring-web.xml"/>
</beans>

3 spring-repository.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans default-lazy-init="true"
       xmlns="http://www.springframework.org/schema/beans"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:util="http://www.springframework.org/schema/util"
       xmlns:jpa="http://www.springframework.org/schema/data/jpa"
       xsi:schemaLocation="
       http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
       http://www.springframework.org/schema/mvc
       http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx-4.3.xsd
       http://www.springframework.org/schema/aop
       http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
       http://www.springframework.org/schema/util
       http://www.springframework.org/schema/util/spring-util-4.3.xsd
       http://www.springframework.org/schema/data/jpa
       http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
       http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-4.3.xsd">
    <util:properties id="cfg" location="classpath:db.properties"/>
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
          init-method="init" destroy-method="close" lazy-init="false">
        <property name="DriverClassName" value="#{cfg.jdbcDriver}"/>
        <property name="Url" value="#{cfg.jdbcUrl}"/>
        <property name="Username" value="#{cfg.jdbcUser}"/>
        <property name="Password" value="#{cfg.jdbcPassword}"/>
    </bean>
    <!-- 借助此Bean对象创建SqlSessionFactory对象
                         ，当我们调用工厂对象的getBean方法获取id为sqlSessionFactory
                            的对象时，系统会返回SqlSessionFactoryBean对象的getObject
                            方法返回的对象。-->
    <bean id="sqlSessionFactory"
          class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="DataSource" ref="dataSource"/>
        <!-- 设置mapper文件的位置 -->
        <property name="MapperLocations"
                  value="classpath*:mapper/sys/*.xml"/>
    </bean>
    <bean id="daoScanner"
          class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="BasePackage" value="com.jt.**.dao"/>
        <!-- 当spring容器只有一个sqlSessionFactory时如下配置可以不写 -->
        <property name="SqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>

</beans>

4 spring-service.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans default-lazy-init="true"
       xmlns="http://www.springframework.org/schema/beans"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:util="http://www.springframework.org/schema/util"
       xmlns:jpa="http://www.springframework.org/schema/data/jpa"
       xsi:schemaLocation="
       http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
       http://www.springframework.org/schema/mvc
       http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx-4.3.xsd
       http://www.springframework.org/schema/aop
       http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
       http://www.springframework.org/schema/util
       http://www.springframework.org/schema/util/spring-util-4.3.xsd
       http://www.springframework.org/schema/data/jpa
       http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
       http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-4.3.xsd">


    <context:component-scan base-package="com.jt.sys.service"/>

</beans>

5 spring-web.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans default-lazy-init="true"
       xmlns="http://www.springframework.org/schema/beans"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:util="http://www.springframework.org/schema/util"
       xmlns:jpa="http://www.springframework.org/schema/data/jpa"
       xsi:schemaLocation="
       http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
       http://www.springframework.org/schema/mvc
       http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx-4.3.xsd
       http://www.springframework.org/schema/aop
       http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
       http://www.springframework.org/schema/util
       http://www.springframework.org/schema/util/spring-util-4.3.xsd
       http://www.springframework.org/schema/data/jpa
       http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
       http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-4.3.xsd">

    <context:component-scan base-package="com.jt.sys.controller"/>
    <!--启用mvc默认配置(内置一部分bean对象的定义)-->
    <mvc:annotation-driven/>
    <!--注册视图解析对象 -->
    <bean id="viewResovler"      class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="Prefix" value="/WEB-INF/pages/"/>
        <property name="Suffix" value=".html"/>
    </bean>

</beans>

6 db.properties

jdbcDriver=com.mysql.jdbc.Driver
jdbcUrl=jdbc:mysql:///jtsys?characterEncoding=utf-8&serverTimezone=UTC
jdbcUser=root
jdbcPassword=root

7 log4j2.xml

<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
    <Appenders>
        <Console name="STDOUT" target="SYSTEM_OUT">
            <PatternLayout pattern="%d %-5p [%t] %C{2} (%F:%L) - %m%n"/>
        </Console>
        <RollingFile name="RollingFile" fileName="logs/strutslog1.log"
                     filePattern="logs/$${date:yyyy-MM}/app-%d{MM-dd-yyyy}-%i.log.gz">
            <PatternLayout>
                <Pattern>%d{MM-dd-yyyy} %p %c{1.} [%t] -%M-%L- %m%n</Pattern>
            </PatternLayout>
            <Policies>
                <TimeBasedTriggeringPolicy />
                <SizeBasedTriggeringPolicy size="1 KB"/>
            </Policies>
            <DefaultRolloverStrategy fileIndex="max" max="2"/>
        </RollingFile>
    </Appenders>
    <Loggers>
        <Logger name="com.opensymphony.xwork2" level="WAN"/>
        <Logger name="org.apache.struts2" level="WAN"/>
        <Root level="warn">
            <AppenderRef ref="STDOUT"/>
        </Root>
    </Loggers>
</Configuration>

8 SysLogMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.jt.sys.dao.SysLogDao">
    <delete id="deleteObjects">
        delete from sys_logs
        where id in <!-- (1,2,3,4,5) -->
        <foreach collection="ids"
                 open="("
                 close=")"
                 separator=","
                 item="id">
            #{id}
        </foreach>
    </delete>
</mapper>

四、测试类
1 TestBase

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class TestBase {
	protected ClassPathXmlApplicationContext ctx;
	@Before
	public void init() {
		ctx=new ClassPathXmlApplicationContext("spring-configs.xml");
	}
@Test
    public void testCtx() {
    	 System.out.println(ctx);
    }
	@After
	public void destory() {
		ctx.close();
	}
}

2 TestDataSource

import org.junit.Test;

import javax.sql.DataSource;

public class TestDataSource extends TestBase{
	@Test
	public void testDruidDataSource()throws Exception {
		DataSource ds=ctx.getBean("dataSource", DataSource.class);
		System.out.println(ds.getConnection());
	}
}

3 TestMybatis

import org.apache.ibatis.session.SqlSessionFactory;
import org.junit.Test;

public class TestMyBatis extends TestBase{
	@Test
	public void testSqlSessionFactory()throws Exception {
		SqlSessionFactory ssf=
		ctx.getBean("sqlSessionFactory", SqlSessionFactory.class);
		System.out.println(ssf);
	}
}

4 TestSysLogDao

import java.util.List;

import org.junit.Test;

import com.jt.sys.dao.SysLogDao;
public class TestSysLogDao extends TestBase {
	
	 @Test
	 public void testDeleteObjects() {
		 SysLogDao dao=
		 ctx.getBean("sysLogDao",SysLogDao.class);
		 int rows=dao.deleteObjects(9,10);
		 System.out.println("delete ok,rows="+rows);
	 }
}

5 controller和dao

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping("/")
public class SysLogController {
    @RequestMapping("doIndexUI")
    public String doIndexUI(){
        return "starter";
    }
}


import java.util.List;
import org.apache.ibatis.annotations.Param;
/**
 * spring-respository.xml 此
 * 文件中定义了一个MapperScannerConfigurer
 * 对象,此对象会对BasePackage属性指定的包
 * 下接口进行扫描,然后会为接口创建实现类的对象,
 * 并将这个对象存储到bean池,其key为接口名(首字母小写).
 */
public interface SysLogDao {//SysLogDao.class
	
	  /**
	   * 执行日志删除操作
	   * @param id
	   * @return
	   */
	  int deleteObjects(@Param("ids")Integer... id);
}