1,applicationContext.xml配置bean

    <!-- 配置datasource -->
    <bean id="dataSource"
    class="org.apache.commons.dbcp.BasicDataSource">
    <property name="driverClassName" value="org.gjt.mm.mysql.Driver"/>
    <property name="url" value="jdbc:mysql://localhost:3306/test"/>
    <property name="username" value=""/>
    <property name="password" value=""/>
    </bean>

    <!-- Jt bean -->
    <bean id="jt" class="org.springframework.jdbc.core.JdbcTemplate">
    <property name="dataSource" ref="dataSource"></property>
    </bean>
    <bean id="useDao" class="com.dao.UserDaoImpl">
    <property name="jdbcTemplete" ref="jt"></property>
    </bean>
    2,UserDaoImpl.java
    package com.dao;
    import org.springframework.jdbc.core.JdbcTemplate;
    public class UserDaoImpl extends UserDao{
    private JdbcTemplate jdbcTemplete;
    public void setJdbcTemplete(JdbcTemplate jdbcTemplete) {
    this.jdbcTemplete = jdbcTemplete;
    }
    public void addData(){
    String sql = "insert into m_s(id,name)values(\"6\",\"@-H\")";
    jdbcTemplete.update(sql);
    }
    public int delete(int id){
    String sql = "delete from m_s where id =?";
    return jdbcTemplete.update(sql, new Object[]{id});
    }
    }
    获取bean工具类;GetBeanUtil.java
    package util;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    public class GetBeanUtil {
    public static ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
    public static Object getBean(String name){
    return ac.getBean(name);
    }
    }
    测试
    UserDaoImpl userdao =  (UserDaoImpl) ac.getBean("useDao");
    userdao.addData();
    userdao.delete(6);