SSM整合开发

导入开发包

• asm-3.2.0.RELEASE.jar
• asm-3.3.1.jar
• c3p0-0.9.jar
• cglib-2.2.2.jar
• com.springsource.net.sf.cglib-2.2.0.jar
• com.springsource.org.aopalliance-1.0.0.jar
• com.springsource.org.apache.commons.logging-1.1.1.jar
• com.springsource.org.aspectj.weaver-1.6.8.RELEASE.jar
• jackson-core-asl-1.7.2.jar
• jackson-mapper-asl-1.7.2.jar
• javassist-3.17.1-GA.jar
• javax.servlet.jsp.jstl.jar
• jsf-api.jar
• jsf-impl.jar
• jstl-impl.jar
• junit.jar
• log4j-1.2.17.jar
• mybatis-3.2.2.jar
• mybatis-spring-1.2.0.jar
• mysql-connector-java-5.1.26-bin.jar
• org.hamcrest.core_1.1.0.v20090501071000.jar
• org.springframework.transaction-3.2.2.RELEASE.jar
• slf4j-api-1.7.5.jar
• slf4j-log4j12-1.7.5.jar
• spring-aop-3.2.0.RELEASE.jar
• spring-beans-3.2.0.RELEASE.jar
• spring-context-3.2.0.RELEASE.jar
• spring-core-3.2.0.RELEASE.jar
• spring-expression-3.2.0.RELEASE.jar
• spring-jdbc-3.2.0.RELEASE.jar
• spring-orm-3.2.0.RELEASE.jar
• spring-test-3.2.0.RELEASE.jar
• spring-web-3.2.0.RELEASE.jar
• spring-webmvc-3.2.0.RELEASE.jar

整合Spring与Mybatis

相关的配置文件

log4j.properties

# Rules reminder:# DEBUG < INFO < WARN < ERROR < FATAL# Global logging configurationlog4j.rootLogger=debug,stdout# My logging configuration...log4j.logger.cn.jbit.mybatisdemo=DEBUG## Console output...log4j.appender.stdout=org.apache.log4j.ConsoleAppenderlog4j.appender.stdout.layout=org.apache.log4j.PatternLayoutlog4j.appender.stdout.layout.ConversionPattern=%5p %d %C: %m%nlog4j.logger.org.apache.ibatis=DEBUG## log4j.logger.org.apache.jdbc.SimpleDataSource=DEBUGlog4j.logger.org.apache.ibatis.jdbc.ScriptRunner=DEBUG## log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapclientDelegate=DEBUGlog4j.logger.java.sql.Connection=DEBUGlog4j.logger.java.sql.Statement=DEBUGlog4j.logger.java.sql.PreparedStatement=DEBUG

myBatis-config.xml文件

通过package, 可以直接指定package的名字， mybatis会自动扫描你指定包下面的javabean,并且默认设置一个别名，默认的名字为非限定类名来作为它的别名。

<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"><configuration><!-- 通过别名简化对类的使用 --><typeAliases><!--        <typeAlias type="cn.itcast.scm.entity.Dept" alias="Dept" /> --> <!--         通过package, 可以直接指定package的名字， mybatis会自动扫描你指定包下面的javabean,      并且默认设置一个别名，默认的名字为非限定类名来作为它的别名。           --> <package name="zhongfucheng.entity"/> </typeAliases><!--    <mappers>        <mapper resource="cn/itcast/scm/entity/DeptMapper.xml" />    </mappers>         --></configuration>

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx"       xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"       xmlns:p="http://www.springframework.org/schema/p"       xsi:schemaLocation="http://www.springframework.org/schema/beans     http://www.springframework.org/schema/beans/spring-beans-3.2.xsd    http://www.springframework.org/schema/context     http://www.springframework.org/schema/context/spring-context-3.2.xsd    http://www.springframework.org/schema/tx     http://www.springframework.org/schema/tx/spring-tx-3.2.xsd    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd">    <!-- 配置数据源，记得去掉myBatis-config.xml的数据源相关配置 -->    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">        <property name="driverClass" value="com.mysql.jdbc.Driver" />        <property name="jdbcUrl"                  value="jdbc:mysql://localhost:3306/scm?useUnicode=true&amp;characterEncoding=UTF-8" />        <property name="user" value="root" />        <property name="password" value="root" />    </bean>    <!-- 配置session工厂 -->    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">        <property name="dataSource" ref="dataSource" />        <property name="configLocation" value="classpath:myBatis-config.xml" />        <!--配置扫描式加载SQL映射文件,记得去掉mybatis-config配置-->    <!--    <property name="mapperLocations" value="classpath:zhongfucheng/dao/*.xml"/>-->    </bean>    <!-- 配置事务管理器,管理数据源事务处理 -->    <bean id="transactionManager"          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <property name="dataSource" ref="dataSource" />    </bean>    <!-- 配置事务通知 -->    <tx:advice id="advice" transaction-manager="transactionManager">        <tx:attributes>            <!-- 默认只处理运行时异常，可加rollback-for="Exception/Throwable"等处理所有异常或包括错误 -->            <tx:method name="insert*" propagation="REQUIRED"                       rollback-for="Exception" />            <tx:method name="update*" propagation="REQUIRED"                       rollback-for="Exception" />            <tx:method name="delete*" propagation="REQUIRED"                       rollback-for="Exception" />            <tx:method name="*" propagation="SUPPORTS" />        </tx:attributes>    </tx:advice>    <!-- 配置切面织入的范围,后边要把事务边界定在service层 -->    <aop:config>        <aop:advisor advice-ref="advice"                     pointcut="execution(* cn.itcast.scm.service.impl.*.*(..))" />    </aop:config>    <!-- 配置SessionTemplate，已封装了繁琐的数据操作 -->    <bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">        <constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory" />    </bean>    <!-- <context:component-scan base-package="*" /> -->    <!-- 自动扫描组件，要把controller去除，他们是在spring-mvc.xml中配置，如果不去除会影响事务管理。 -->    <context:component-scan base-package="cn.itcast">        <context:exclude-filter type="annotation"                                expression="org.springframework.stereotype.Controller" />    </context:component-scan>    <!-- 配置 转换器，对于在basePackage设置的包（包括子包）下的接口类，    如果接口类的全类名在Mapper.xml文件中和定义过命名空间一致，     将被转换成spring的BEAN，在调用         的地方通过@Autowired方式将可以注入接口实例 --><!--    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <property name="sqlSessionFactory" ref="sqlSessionFactory" />        &lt;!&ndash;这里包名留意要不要改&ndash;&gt;        <property name="basePackage" value="zhongfucheng.dao" />    </bean>--></beans>

编写实体及sql映射文件

SQL脚本

drop database if exists mybatis;create database mybatis CHARACTER SET UTF8;use mybatis;create table dept(    dept_id int primary key auto_increment,    dept_name varchar(50),    dept_address varchar(50));insert into dept(dept_name,dept_address) values('研发部一部','广州');insert into dept(dept_name,dept_address) values('研发部二部','广州');insert into dept(dept_name,dept_address) values('研发部三部','深圳');select * from dept;

实体：

package zhongfucheng.entity;import java.io.Serializable;public class Dept implements Serializable {    private Integer deptId;    private String deptName;    private String deptAddress;    public Integer getDeptId() {        return deptId;    }    public void setDeptId(Integer deptId) {        this.deptId = deptId;    }    public String getDeptName() {        return deptName;    }    public void setDeptName(String deptName) {        this.deptName = deptName;    }    public String getDeptAddress() {        return deptAddress;    }    public void setDeptAddress(String deptAddress) {        this.deptAddress = deptAddress;    }    @Override    public String toString() {        return "Dept [deptId=" + deptId + ", deptName=" + deptName                + ", deptAddress=" + deptAddress + "]";    }}

映射文件

<?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="zhongfucheng.entity.DeptMapper">    <resultMap type="Dept" id="deptResultMap">        <id property="deptId" column="dept_id" />        <result property="deptName" column="dept_name" />        <result property="deptAddress" column="dept_address" />    </resultMap>    <!-- id和命名空间用来定位SQL语句，parameterType表示参数的类型，resultMap返回类型 -->    <select id="selectDept" parameterType="Integer" resultMap="deptResultMap">        <!--参数的写法#{deptID} -->        select * from dept where dept_id=#{deptID}    </select>    <insert id="insertDept" parameterType="Dept">        insert into dept(dept_name,dept_address) values(#{deptName},#{deptAddress});    </insert></mapper>

mybatis配置文件加载映射文件

<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"><configuration><!-- 通过别名简化对类的使用 --><typeAliases><!--        <typeAlias type="cn.itcast.scm.entity.Dept" alias="Dept" /> --> <!--         通过package, 可以直接指定package的名字， mybatis会自动扫描你指定包下面的javabean,      并且默认设置一个别名，默认的名字为非限定类名来作为它的别名。           --> <!--这里的包名留意要不要改--> <package name="zhongfucheng.entity"/> </typeAliases>    <mappers>        <mapper resource="zhongfucheng/dao/DeptMapper.xml" />    </mappers></configuration>

编写Dao以及实现

接口

package zhongfucheng.dao;import zhongfucheng.entity.Dept;/** * Created by ozc on 2017/8/8. */public interface DeptDao {    Dept selectDept(Integer deptId);    int insertDept(Dept dept);}

实现：

package zhongfucheng.dao.impl;import org.mybatis.spring.SqlSessionTemplate;import org.springframework.stereotype.Repository;import zhongfucheng.entity.Dept;import javax.annotation.Resource;/** * Created by ozc on 2017/8/8. */@Repository("deptDao")public class DeptDaoImpl implements zhongfucheng.dao.DeptDao {    @Resource    private SqlSessionTemplate sqlSessionTemplate;    /**     * 根据部门编号查询部门信息     * @param deptId 部门编号     * @return 部门信息     */    @Override    public Dept selectDept(Integer deptId){        Dept dept=  sqlSessionTemplate.selectOne("zhongfucheng.entity.DeptMapper.selectDept", deptId);        return dept;    }    /**     * 添加部门信息     * @param dept 部门信息     * @return 添加成功的记录数     */    @Override    public int insertDept(Dept dept){        System.out.println("------dao.dept:"+dept);        return sqlSessionTemplate.insert("zhongfucheng.entity.DeptMapper.insertDept", dept);    }}

测试spring与mybatis整合

import org.junit.AfterClass;import org.junit.BeforeClass;import org.junit.Test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import zhongfucheng.dao.impl.DeptDaoImpl;import zhongfucheng.entity.Dept;/** * Created by ozc on 2017/8/8. */public class TestDeptDao {    //@Resource //这里没法使用，后继版本有其它方式可以注入    static private DeptDaoImpl deptDao;    @BeforeClass    public static void setUpBeforeClass() throws Exception {        ApplicationContext context =new ClassPathXmlApplicationContext("applicationContext.xml");        deptDao=(DeptDaoImpl) context.getBean("deptDao");    }    @AfterClass    public static void tearDownAfterClass() throws Exception {    }    @Test    public void testSelectDept() {        System.out.println(deptDao.selectDept(1));    }    @Test    public void testInsertDept() {        Dept dept=new Dept();        //dept.setDeptId(117);        dept.setDeptName("name117");        dept.setDeptAddress("address117");        System.out.println("受影响行数："+deptDao.insertDept(dept));    }}

整合SpringMVC

配置文件

spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:mvc="http://www.springframework.org/schema/mvc"    xmlns:context="http://www.springframework.org/schema/context"    xmlns:p="http://www.springframework.org/schema/p"    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd    http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd    ">    <!-- 同时开启json格式的支持 -->    <mvc:annotation-driven></mvc:annotation-driven>    <!-- <context:component-scan base-package="*"/> -->    <!-- 扫描所有的controller 但是不扫描service -->    <context:component-scan base-package="zhongfucheng">        <context:include-filter type="annotation"            expression="org.springframework.stereotype.Controller" />        <context:exclude-filter type="annotation"            expression="org.springframework.stereotype.Service" />    </context:component-scan></beans>

web.xml

<?xml version="1.0" encoding="UTF-8"?><web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"         version="3.1">    <!--Spring监听器-->    <listener>        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>    </listener>    <context-param>        <param-name>contextConfigLocation</param-name>        <param-value>classpath:applicationContext.xml</param-value>    </context-param>    <!--Mvc分配器-->    <servlet>        <servlet-name>mvc</servlet-name>        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>        <init-param>            <param-name>contextConfigLocation</param-name>            <param-value>classpath:spring-mvc.xml</param-value>        </init-param>        <load-on-startup>1</load-on-startup>    </servlet>    <servlet-mapping>        <servlet-name>mvc</servlet-name>        <url-pattern>*.action</url-pattern>    </servlet-mapping>    <!--中文过滤器-->    <filter>        <filter-name>encodingFilter</filter-name>        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>        <init-param>            <param-name>encoding</param-name>            <param-value>UTF-8</param-value>        </init-param>    </filter>    <filter-mapping>        <filter-name>encodingFilter</filter-name>        <url-pattern>/*</url-pattern>    </filter-mapping></web-app>

编写Action

package zhongfucheng.action;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import zhongfucheng.dao.impl.DeptDaoImpl;import zhongfucheng.entity.Dept;import javax.annotation.Resource;/** * Created by ozc on 2017/8/8. */@Controller@RequestMapping(value="/dept")public class DeptAction {    @Resource    private DeptDaoImpl deptDao;    @RequestMapping(value="/insert")    public String insert(Dept dept){        System.out.println("---action.dept:"+dept);        deptDao.insertDept(dept);        return "forward:/jsp/main.jsp";    }}

测试SSI整合

index.jsp页面

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%><html><head></head><body>    <form action="dept/insert.action" method="post">        名称：<input type="text"   name="deptName"><br>         地址：<input type="text" name="deptAddress"><br>        <input type="submit" value="ok">    </form></body></html>

main.jsp页面：

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%><html><head></head><body> this is main jsp</body></html>

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优化

如果想要Spring与Mybatis更加完美地结合，其实我们的Dao并不需要写实现，直接写接口和映射文件就行了，这样一来，我们就可以舍弃DaoImpl了。

在Spring配置文件中加入以下的代码：

    <!-- 配置 转换器，对于在basePackage设置的包（包括子包）下的接口类，        如果接口类的全类名在Mapper.xml文件中和定义过命名空间一致，        将被转换成spring的BEAN，在调用的地方通过@Autowired方式将可以注入接口实例 -->    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <property name="sqlSessionFactory" ref="sqlSessionFactory" />        <!--这里包名留意要不要改-->        <property name="basePackage" value="zhongfucheng.dao" />    </bean>

我们的映射文件中把命名空间写成是Dao的全路径

//Dao的全路径，那么Spring就会自动帮我们创建对象，注入进去<mapper namespace="zhongfucheng.dao.DeptDao">    <resultMap type="Dept" id="deptResultMap">        <id property="deptId" column="dept_id" />        <result property="deptName" column="dept_name" />        <result property="deptAddress" column="dept_address" />    </resultMap>    <!-- id和命名空间用来定位SQL语句，parameterType表示参数的类型，resultMap返回类型 -->    <select id="selectDept" parameterType="Integer" resultMap="deptResultMap">        <!--参数的写法#{deptID} -->        select * from dept where dept_id=#{deptID}    </select>    <insert id="insertDept" parameterType="Dept">        insert into dept(dept_name,dept_address) values(#{deptName},#{deptAddress});    </insert></mapper>

在配置工厂的时候，我们可以配置mapperLocations属性，这样一来，我们就不用在Mybatis中逐个加载配置文件了。

    <!-- 配置session工厂 -->    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">        <property name="dataSource" ref="dataSource" />        <!--这里的路径和名字留意要不要改-->        <property name="configLocation" value="classpath:myBatis-config.xml" />        <!--配置扫描式加载SQL映射文件,记得去掉mybatis-config配置，使用了这个，在Mybatis配置文件中就不用加载对应的映射文件了-->        <!--这里留意路径是否要改-->        <property name="mapperLocations" value="classpath:zhongfucheng/dao/*.xml"/>    </bean>

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