1.在xml配置JdbcTemplateUtil所需的資料來源

<!--2. 配置springDSN -->
<bean id="springDSN" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName" value="com.mysql.jdbc.Driver" />
		<property name="url"
			value="jdbc:mysql://localhost:3306/makefriends?useUnicode=true&characterEncoding=utf8" />
		<property name="username" value="root" />
		<property name="password" value="123" />
</bean>


<!-- 2. JdbcTemplate工具類例項 -->
	<bean id="jdbcTemplate"
        class="org.springframework.jdbc.core.JdbcTemplate" abstract="false"
        lazy-init="false" autowire="default" >
        <property name="dataSource">
            <ref bean="springDSN" />
        </property>
    </bean>
 

package com.yun.utility;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class JdbcTemplateUtil {
private static ApplicationContext  ctx = new ClassPathXmlApplicationContext("config/sprhib-data.xml");
    
    public static Object getBean(String beanName){
         return ctx.getBean(beanName);
    } 
}
 

<span style="font-size:18px;"><strong>package com.yun.test;

import java.util.List;
import java.util.Map;

import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.datasource.DriverManagerDataSource;

import com.yun.model.User;
import com.yun.utility.JdbcTemplateUtil;

public class TestJdbcTemplate {

	/**
	 * @param args
	 */
	@SuppressWarnings("unchecked")
	public static void main(String[] args) {
		// TODO Auto-generated method stub
//		DriverManagerDataSource ds=new DriverManagerDataSource();
//		ds.setDriverClassName("com.mysql.jdbc.Driver");
//		ds.setUrl("jdbc:mysql://localhost:3306/makefriends");
//		ds.setUsername("root");
//		ds.setPassword("123");
//		JdbcTemplate jt=new JdbcTemplate();
//		jt.setDataSource(ds);
		
		JdbcTemplate jt=(JdbcTemplate) JdbcTemplateUtil.getBean("jdbcTemplate");
		//JdbcTemplate jt=new JdbcTemplate();
		List<Map<String, Object>> list=jt.queryForList("select * from yunuser");
		System.out.println(list.size());
		for(int i=0;i<list.size();i++){
			Map map=list.get(i);
			System.out.println(map);
			System.out.println(map.get("user_name"));
	  }
		
	}

}
</strong></span>