spring整合springmvc和mybatis

本文的主要目的是自己记录笔记。

Spring

Spring提供了一站式解决方案：
1） Spring Core spring的核心功能： IOC容器, 解决对象创建及依赖关系
2） Spring Web Spring对web模块的支持。
- 可以与struts整合,让struts的action创建交给spring
- spring mvc模式
3） Spring DAO Spring 对jdbc操作的支持 【JdbcTemplate模板工具类】
4） Spring ORM spring对orm的支持：
既可以与hibernate整合，【session】
也可以使用spring的对hibernate操作的封装
5）Spring AOP 切面编程
6）SpringEE spring 对javaEE其他模块的支持

关于jar

spring各个版本中：
在3.0以下的版本，源码有spring中相关的所有包【spring功能 + 依赖包】如2.5版本；
在3.0以上的版本，源码中只有spring的核心功能包【没有依赖包】
(如果要用依赖包，需要单独下载！)
1） 源码, jar文件: spring-framework-3.2.5.RELEASE
spring web mvc包：

org.springframework.web.servlet-3.0.5.RELEASE.jar

springweb模块：

org.springframework.web-3.0.5.RELEASE.jar

springORM模块：

org.springframework.orm-3.0.5.RELEASE.jar

spring dao模块：

org.springframework.jdbc-3.0.5.RELEASE.jar
org.springframework.transaction-3.0.5.RELEASE.jar

spring aop模块：

aopalliance.jar
aspectjweaver.jar
cglib-nodep-2.1_3.jar
org.springframework.aop-3.0.5.RELEASE.jar

spring ioc模块：

commons-logging-1.1.3.jar 日志
spring-beans-3.2.5.RELEASE.jar bean节点
spring-context-3.2.5.RELEASE.jar spring上下文节点
spring-core-3.2.5.RELEASE.jar spring核心功能
spring-expression-3.2.5.RELEASE.jar spring表达式相关表
org.springframework.asm-3.0.5.RELEASE.jar

springmvc json响应需要用的lib:

jackson-core-asl-1.9.11.jar
jackson-mapper-asl-1.9.11.jar

mybatis:

mybatis-spring-1.1.1.jar
mybatis-3.1.1.jar

简单整合示例

<?xml version="1.0" encoding="UTF-8"?><web-app version="2.5"     xmlns="http://java.sun.com/xml/ns/javaee"     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee     http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">  <display-name></display-name>   <welcome-file-list>    <welcome-file>index.jsp</welcome-file>  </welcome-file-list>  <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>  <!-- 中文编码 -->  <!-- 注册针对POST请求的编码器 -->  <filter>        <filter-name>CharacterEncodingFilter</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>CharacterEncodingFilter</filter-name>        <url-pattern>/*</url-pattern>  </filter-mapping></web-app>

这里指定加载的xml配置文件classpath:spring.xml默认在src下。

spring.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:context="http://www.springframework.org/schema/context"    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"    xmlns:mvc="http://www.springframework.org/schema/mvc"    xsi:schemaLocation="      http://www.springframework.org/schema/beans       http://www.springframework.org/schema/beans/spring-beans-3.0.xsd      http://www.springframework.org/schema/context      http://www.springframework.org/schema/context/spring-context-3.0.xsd      http://www.springframework.org/schema/aop       http://www.springframework.org/schema/aop/spring-aop-3.0.xsd      http://www.springframework.org/schema/tx      http://www.springframework.org/schema/tx/spring-tx-3.0.xsd      http://www.springframework.org/schema/mvc      http://www.springframework.org/schema/mvc/spring-mvc-3.0.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="com.mysql.jdbc.Driver" />        <property name="jdbcUrl" value="jdbc:mysql://127.0.0.1:3306/hb_demo" />        <property name="user" value="root" />        <property name="password" value="admin" />      </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>        <property name="dataSource" ref="comboPooledDataSourceID"></property>      </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(* com.dotsview.dao.*.*(..))"/>        <aop:advisor advice-ref="tx" pointcut-ref="pointcut"/>      </aop:config>      <!-- 注册EmpDao -->      <bean id="empDaoId" class="com.dotsview.dao.EmpDao">        <property name="sqlSessionFactory" ref="sqlSessionFactoryBeanID"></property>      </bean>      <!-- 注册EmpService -->      <bean id="empServiceId" class="com.dotsview.service.EmpService">        <property name="empDao" ref="empDaoId"></property>      </bean>      <!-- 注册EmpAction -->      <context:component-scan base-package="com.dotsview.action" />      <!-- 通知springioc容器这些注解的作用 -->      <context:annotation-config/>      <!-- 视图解析器 -->      <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <property name="prefix" value="/jsp/"/>        <property name="suffix" value=".jsp"/>      </bean></beans>     

mybatis.xml

<?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>    <!-- 加载类路径下的db.config -->    <!-- <properties resource="db.properties"></properties> -->    <!-- 设置一个默认的连接环境信息，下面配的中只能选择一个设置为默认 -->    <!-- <environments default="mysql_developer">        <environment id="mysql_developer">            <transactionManager type="jdbc"/>            <dataSource type="pooled">                配置与数据库交互的4个必要属性                <property name="driver" value="${mysql.driver}"/>                <property name="url" value="${mysql.url}"/>                <property name="username" value="${mysql.username}"/>                <property name="password" value="${mysql.password}"/>            </dataSource>        </environment>        连接环境信息，取一个任意唯一的名字        <environment id="oracle_developer">            mybatis使用jdbc事务管理方式            <transactionManager type="jdbc"/>            mybatis使用连接池方式来获取连接            <dataSource type="pooled">                配置与数据库交互的4个必要属性                <property name="driver" value="${oracle.driver}"/>                <property name="url" value="${oracle.url}"/>                <property name="username" value="${oracle.username}"/>                <property name="password" value="${oracle.password}"/>            </dataSource>        </environment>    </environments> -->    <!-- 加载映射文件-->    <mappers>        <mapper resource="com/dotsview/entity/EmpMapper.xml"/>    </mappers></configuration>

log4j配置

log4j.rootLogger=debug,stdout,logfilelog4j.appender.stdout=org.apache.log4j.ConsoleAppenderlog4j.appender.stdout.layout=org.apache.log4j.SimpleLayoutlog4j.appender.logfile=org.apache.log4j.FileAppenderlog4j.appender.logfile.layout=org.apache.log4j.PatternLayoutlog4j.appender.logfile.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %F %p %m%nlog4j.logger.com.ibatis=DEBUGlog4j.logger.com.ibatis.common.jdbc.SimpleDataSource=DEBUGlog4j.logger.com.ibatis.common.jdbc.ScriptRunner=DEBUGlog4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=DEBUGlog4j.logger.java.sql.Connection=DEBUGlog4j.logger.java.sql.Statement=DEBUGlog4j.logger.java.sql.PreparedStatement=DEBUG

Controller示例：

package com.dotsview.action;import javax.annotation.Resource;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import com.dotsview.entity.Emp;import com.dotsview.service.EmpService;@Controller@RequestMapping(value="/emp")public class EmpAction {    private EmpService empService;    @Resource(name="empServiceId")    public void setEmpService(EmpService empService) {        this.empService = empService;    }    @RequestMapping("/register")    public String register(Emp emp) {        try {            empService.addEmp(emp);        } catch (Exception e) {            e.printStackTrace();        }        return "success";    }}

Service：

package com.dotsview.service;import com.dotsview.dao.EmpDao;import com.dotsview.entity.Emp;public class EmpService {    private EmpDao empDao;    public void setEmpDao(EmpDao empDao) {        this.empDao = empDao;    }    public void addEmp(Emp emp) throws Exception {        empDao.add(emp);    }}

Dao：

package com.dotsview.dao;import org.apache.ibatis.session.SqlSession;import org.apache.ibatis.session.SqlSessionFactory;import com.dotsview.entity.Emp;public class EmpDao {    private SqlSessionFactory sqlSessionFactory;    public void setSqlSessionFactory(SqlSessionFactory sqlSessionFactory) {        this.sqlSessionFactory = sqlSessionFactory;    }    public void add(Emp emp) throws Exception {        SqlSession sqlSession = sqlSessionFactory.openSession();        sqlSession.insert("empNamespace.add", emp);        sqlSession.close();    }}

EmpMapper.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="empNamespace">    <resultMap type="com.dotsview.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="com.dotsview.entity.Emp">        insert into emp(eid, ename, esal, esex) values(#{id}, #{name}, #{sal}, #{sex})    </insert></mapper>

entity:

package com.dotsview.entity;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) {        super();        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;    }    @Override    public String toString() {        return "Emp [id=" + id + ", name=" + name + ", sal=" + sal + ", sex="                + sex + "]";    }}