Spring + Ibatis + MySql实例详解

1. 环境：

将以下jar包加入到工程，commons-logging-1.0.4.jar、ibatis-2.3.0.677.jar、mysql-connector-java-5.0.3-bin.jar、spring.jar。

2. 在MySQL中创建数据库和相应的表：

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#############################################################################################

CREATE DATABASE MYDB;

use MYDB;

Drop TABLE IF EXISTS `MYDB`.`student`;

Create TABLE `MYDB`.`student` (

`name` varchar(40) NOT NULL,

`psw` varchar(10) NOT NULL,

`enabled` boolean

);

insert into student values("lanp","lanpiao",true);

insert into student values("ph","ph",true);

insert into student values("wxh","wxh",true);

3. 创建实体Bean，Student.Java

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package com.lanp.beans;

import java.io.Serializable;

/**

* Student Bean

* @author LanP

* @since 2011-11-27 15:36

* @version V1.0

*/

public class Student implements Serializable {

private static final long serialVersionUID = -7163004163334815825L;

private String name;

private String psw;

private Boolean enabled;

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getPsw() {

return psw;

}

public void setPsw(String psw) {

this.psw = psw;

}

public Boolean getEnabled() {

return enabled;

}

public void setEnabled(Boolean enabled) {

this.enabled = enabled;

}

}

4. 创建Student实体Bean与数据库映射的SQLMap文件，student.xml：

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<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE sqlMap

PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN"

"http://ibatis.apache.org/dtd/sql-map-2.dtd">

<sqlMap>

<!-- 为Person类设置一个别名 -->

<typeAlias alias="student" type="com.lanp.beans.Student"/>

<!-- 配置表和实体Bean之间的映射关系 -->

<resultMap id="studentMap" class="com.lanp.beans.Student">

<result property="name" column="name"/>

<result property="psw" column="psw"/>

<result property="enabled" column="enabled"/>

</resultMap>

<insert id="insertStudent" parameterClass="student">

<![CDATA[

insert into student values(#name#,#psw#,#enabled#);

]]>

</insert>

<!-- 查看特定用户 -->

<select id="queryStudentById" parameterClass="string" resultMap="studentMap">

<![CDATA[

SELECT * FROM STUDENT WHERE NAME=#name#

]]>

</select>

<!-- 查看所有的用户 -->

<select id="queryAllStudents" resultMap="studentMap">

<![CDATA[

SELECT * FROM STUDENT

]]>

</select>

</sqlMap>

5. 创建访问数据库的DAO接口，StudentDao.java：

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package com.lanp.dao;

import com.lanp.beans.Student;

public interface StudentDao {

Student getStudent(String name);

}

6. 创建访问数据库的DAO接口实现类，StudentDaoImpl.java：

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package com.lanp.dao;

import org.springframework.orm.ibatis.support.SqlMapClientDaoSupport;

import com.lanp.beans.Student;

public class StudentDaoImpl extends SqlMapClientDaoSupport implements StudentDao {

@Override

public Student getStudent(String name) {

try{

return (Student)getSqlMapClientTemplate().queryForObject("queryStudentById", name);

} catch(Exception e) {

e.printStackTrace();

}

return null;

}

}

7. Ibatis总配置文件，sqlMapConfig.xml：

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<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE sqlMapConfig

PUBLIC "-//ibatis.apache.org//DTD SQL Map Config 2.0//EN"

"http://ibatis.apache.org/dtd/sql-map-config-2.dtd">

<sqlMapConfig>

<!-- 配置Ibatis要使用的SqlMap文件信息 -->

<sqlMap resource="com/lanp/beans/student.xml"/>

</sqlMapConfig>

8. spring配置文件，SQLMapClient.xml：

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<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

<beans>

<!-- 相关数据源和事务管理的定义 -->

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">

<property name="driverClassName" value="com.mysql.jdbc.Driver"/>

<property name="url" value="jdbc:mysql://127.0.0.1:3306/MYDB"/>

<property name="username" value="root"/>

<property name="password" value="157891"/>

</bean>

<bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">

<property name="configLocation">

<value>sqlMapConfig.xml</value>

</property>

<property name="dataSource">

<ref bean="dataSource"/>

</property>

</bean>

<bean id="studentDao" class="com.lanp.dao.StudentDaoImpl">

<property name="sqlMapClient">

<ref bean="sqlMapClient"/>

</property>

</bean>

</beans>

9. 测试类，TestStudent：

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package com.lanp.beans;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.lanp.dao.StudentDao;

/**

* 测试Ibatis

* @author LanP

* @since 2011-11-27 15:36

* @version V1.0

*/

public class TestStudent {

public static void main(String[] args) {

//1.初始化beans.xml文件

ApplicationContext ctx = new ClassPathXmlApplicationContext("SQLMapClient.xml");

//2.获取MYDB数据库Student表中的内容

StudentDao studentDao = (StudentDao)ctx.getBean("studentDao");

if(null != studentDao) {

Student student = studentDao.getStudent("ph");

if(null != student) {

System.out.println("== 学生名字：" + student.getName() + ",学生密码：" + student.getPsw());

} else {

System.out.println("== 没有该学生信息！");

}

} else {

System.out.println("== StudentDao注入失败！");

}

}

}

OK,TKS!