Spring的JDBC（非web程序）的简单例子

第一步：

spring配置applicationContext.xml文件，放在src下面：

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

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

<beans>

    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource" destroy-method="close">

      //  <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"/>

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

     // <property name="url" value="jdbc:oracle:thin:@localhost:1521:db10g"/>

　　  <property name="url" value="jdbc:mysql://localhost:3306/iminer"/>

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

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

    </bean>

    <bean id="jdbcTemplate"

       class="org.springframework.jdbc.core.JdbcTemplate">

       <property name="dataSource">

           <ref bean="dataSource" />

       </property>

    </bean>

    <bean id="jdbcUtil" class="com.maggie.util.JdbcUtil">

       <property name="jdbcTemplate">

           <ref bean="jdbcTemplate" />

       </property>

    </bean>

</beans>

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第二步：com.maggie.util.JdbcUtil.java 类文件：

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

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

<beans>

    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource" destroy-method="close">

      //  <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"/>

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

     // <property name="url" value="jdbc:oracle:thin:@localhost:1521:db10g"/>

　　  <property name="url" value="jdbc:mysql://localhost:3306/iminer"/>

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

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

    </bean>

    <bean id="jdbcTemplate"

       class="org.springframework.jdbc.core.JdbcTemplate">

       <property name="dataSource">

           <ref bean="dataSource" />

       </property>

    </bean>

    <bean id="jdbcUtil" class="com.maggie.util.JdbcUtil">

       <property name="jdbcTemplate">

           <ref bean="jdbcTemplate" />

       </property>

    </bean>

</beans>

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第三步：测试类：

package com.maggie.test;

import java.util.Map;

import org.springframework.beans.factory.xml.XmlBeanFactory;

import org.springframework.core.io.ClassPathResource;

import com.maggie.util.JdbcUtil;

public class Test{

    private JdbcUtil jdbc;

    public Test() {

       ClassPathResource res = new ClassPathResource("applicationContext.xml");

        XmlBeanFactory factory = new XmlBeanFactory(res);

        jdbc = (JdbcUtil) factory.getBean("jdbcUtil");

    }

    public String getUsernameById(String id) {

       Map dataName = jdbc.getJdbcTemplate().queryForMap(

              "select t.username from tablename t where t.id=?", new Object[] { id });

       return (String) dataName.get("username");

    }

    public static void main(String[] args) {

       Test test = new Test();

       String id = "1";

       String username = test.getUsernameById(id);

       System.out.println("*************** username = "+username);

    }

}