Mybatis第五篇【Mybatis与Spring整合】

Mybatis与Spring整合

既然我们已经学了Mybatis的基本开发了，接下来就是Mybatis与Spring的整合了！

以下使用的是Oracle数据库来进行测试

导入jar包

• aopalliance.jar
• asm-3.3.1.jar
• aspectjweaver.jar
• c3p0-0.9.1.2.jar
• cglib-2.2.2.jar
• commons-logging.jar
• log4j-1.2.16.jar
• mybatis-3.1.1.jar
• mybatis-spring-1.1.1.jar
• mysql-connector-java-5.1.7-bin.jar
• ojdbc5.jar
• org.springframework.aop-3.0.5.RELEASE.jar
• org.springframework.asm-3.0.5.RELEASE.jar
• org.springframework.beans-3.0.5.RELEASE.jar
• org.springframework.context-3.0.5.RELEASE.jar
• org.springframework.core-3.0.5.RELEASE.jar
• org.springframework.expression-3.0.5.RELEASE.jar
• org.springframework.jdbc-3.0.5.RELEASE.jar
• org.springframework.orm-3.0.5.RELEASE.jar
• org.springframework.transaction-3.0.5.RELEASE.jar
• org.springframework.web.servlet-3.0.5.RELEASE.jar
• org.springframework.web-3.0.5.RELEASE.jar

创建表

create table emps(  eid number(5) primary key,  ename varchar2(20),  esal number(8,2),  esex varchar2(2));

创建实体

package entity;/** * 员工 * @author AdminTC */public class Emp {    private Integer id;    private String name;    private Double sal;    private String sex;    public Emp(){}    public Emp(Integer id, String name, Double sal, String sex) {        this.id = id;        this.name = name;        this.sal = sal;        this.sex = sex;    }    public Integer getId() {        return id;    }    public void setId(Integer id) {        this.id = id;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public Double getSal() {        return sal;    }    public void setSal(Double sal) {        this.sal = sal;    }    public String getSex() {        return sex;    }    public void setSex(String sex) {        this.sex = sex;    }}

创建实体与表的映射文件

<?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="empNamespace">    <resultMap type="entity.Emp" id="empMap">        <id property="id" column="eid"/>        <result property="name" column="ename"/>        <result property="sal" column="esal"/>        <result property="sex" column="esex"/>    </resultMap>        <!-- 增加员工 -->    <insert id="add" parameterType="entity.Emp">        insert into emps(eid,ename,esal,esex) values(#{id},#{name},#{sal},#{sex})    </insert></mapper>

创建Mybatis映射文件配置环境

数据库的信息交由Spring管理！Mybatis配置文件负责加载对应映射文件即可

    <mappers>        <mapper resource="zhongfucheng/entity/EmpMapper.xml"/>    </mappers></configuration>

配置Spring核心过滤器【也是加载总配置文件】

    <!-- 核心springmvc核心控制器 -->    <servlet>        <servlet-name>DispatcherServlet</servlet-name>        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>        <init-param>            <param-name>contextConfigLocation</param-name>            <param-value>classpath:spring.xml</param-value>        </init-param>    </servlet>    <servlet-mapping>        <servlet-name>DispatcherServlet</servlet-name>        <url-pattern>*.action</url-pattern>    </servlet-mapping>

配置数据库信息、事务

<?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"       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">    <!-- 配置C3P0连接池,目的：管理数据库连接 -->    <bean id="comboPooledDataSourceID" class="com.mchange.v2.c3p0.ComboPooledDataSource">        <property name="driverClass" value="oracle.jdbc.driver.OracleDriver"/>        <property name="jdbcUrl" value="jdbc:oracle:thin:@127.0.0.1:1521:ZHONGFUCHENG"/>        <property name="user" value="scott"/>        <property name="password" value="tiger"/>    </bean>    <!-- 配置SqlSessionFactoryBean，目的：加载mybaits配置文件和映射文件，即替代原Mybatis工具类的作用 -->    <bean id="sqlSessionFactoryBeanID" class="org.mybatis.spring.SqlSessionFactoryBean">        <property name="configLocation" value="classpath:mybatis.xml"/>        <property name="dataSource" ref="comboPooledDataSourceID"/>    </bean>    <!-- 配置Mybatis的事务管理器，即因为Mybatis底层用的是JDBC事务管事器，所以在这里依然配置JDBC事务管理器 -->    <bean id="dataSourceTransactionManagerID" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <property name="dataSource" ref="comboPooledDataSourceID"/>    </bean>    <!-- 配置事务通知，即让哪些方法需要事务支持 -->    <tx:advice id="tx" transaction-manager="dataSourceTransactionManagerID">        <tx:attributes>            <tx:method name="*" propagation="REQUIRED"/>        </tx:attributes>    </tx:advice>    <!-- 配置事务切面，即让哪些包下的类需要事务 -->    <aop:config>        <aop:pointcut id="pointcut" expression="execution(* zhongfucheng.service.*.*(..))"/>        <aop:advisor advice-ref="tx" pointcut-ref="pointcut"/>    </aop:config>    <!--扫描注解-->    <context:component-scan base-package="zhongfucheng"/></beans>

创建Dao、Service、Action

@Repositorypublic class EmpDao {    @Autowired    private SqlSessionFactory sqlSessionFactory;    /**     * 增加员工     */    public void add(Emp emp) throws Exception {        SqlSession sqlSession = sqlSessionFactory.openSession();        sqlSession.insert("empNamespace.add", emp);        sqlSession.close();    }}

@Servicepublic class EmpService {    @Autowired    private zhongfucheng.dao.EmpDao empDao;    public void addEmp(Emp emp) throws Exception {        empDao.add(emp);    }}

@Controller@RequestMapping("/emp")public class EmpAction {    @Autowired    private EmpService empService;    @RequestMapping("/register")    public void register(Emp emp) throws Exception {        empService.addEmp(emp);        System.out.println("注册成功");    }}

JSP页面测试

<%@ page language="java" pageEncoding="UTF-8"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>  <head>    <title>员工注册</title>  </head>  <body>    <form action="${pageContext.request.contextPath}/emp/register.action" method="POST">        <table border="2" align="center">            <tr>                <th>编号</th>                <td><input type="text" name="id"></td>            </tr>            <tr>                <th>姓名</th>                <td><input type="text" name="name"></td>            </tr>            <tr>                <th>薪水</th>                <td><input type="text" name="sal"></td>            </tr>            <tr>                <th>性别</th>                <td>                    <input type="radio" name="sex" value="男"/>男                    <input type="radio" name="sex" value="女" checked/>女                </td>            </tr>            <tr>                <td colspan="2" align="center">                    <input type="submit" value="注册"/>                </td>            </tr>        </table>    </form>       </body></html>