（Spring）Spring框架的JDBC模板的简单操作

增删改查的操作

       Account：

public class Account {
	private Integer id;
	private String name;
	private double money;
	
	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 getMoney() {
		return money;
	}
	public void setMoney(double money) {
		this.money = money;
	}
	
	@Override
	public String toString() {
		return "Account [id=" + id + ", name=" + name + ", money=" + money + "]";
	}
}

　　配置文件：

<?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"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
	http://www.springframework.org/schema/beans/spring-beans.xsd
	http://www.springframework.org/schema/context
	http://www.springframework.org/schema/context/spring-context.xsd
	http://www.springframework.org/schema/aop
	http://www.springframework.org/schema/aop/spring-aop.xsd
	http://www.springframework.org/schema/tx 
	http://www.springframework.org/schema/tx/spring-tx.xsd">
	
	<!-- 配置C3P0的连接池 -->
	<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
		<property name="driverClass" value="com.mysql.jdbc.Driver"></property>
		<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/spring_day03"></property>
		<property name="user" value="root"></property>
		<property name="password" value="1234"></property>
	</bean>
	
	<!-- 配置JDBC的模板类 -->
	<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
		<property name="dataSource" ref="dataSource"></property>
	</bean>
</beans>

       测试：

/**
 * 测试JDBC的模板类，使用IoC的方式
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:applicationContext.xml")
public class Demo1_1 {
	@Resource(name="jdbcTemplate")
	private JdbcTemplate jdbcTemplate;
	
	@Test
	public void run1() {
		jdbcTemplate.update("insert into t_account values(null,?,?)", "小明",10000);
	}
	
	/**
	 * update(String sql,Object...params) :  可以完成增删改操作
	 */
	@Test
	public void run2() {
		jdbcTemplate.update("update t_account set name=? where id = ?", "熊大",3);
	}
	
	/**
	 * 删除测试
	 */
	@Test
	public void run3() {
		jdbcTemplate.update("delete from t_account where id=?", 4);
	}
	
	/**
	 * 测试查询: 通过主键查询一条记录
	 */
	@Test
	public void run4() {
		Account ac = jdbcTemplate.queryForObject("select * from t_account where id=?", new BeanMapper(), 1);
		System.out.println(ac);
	}
	
	/**
	 * 查询所有的数据
	 */
	@Test
	public void run5() {
		List<Account> list = jdbcTemplate.query("select * from t_account", new BeanMapper());
		System.out.println(list);
	}
}

/**
 * 自己手动的来封装数据（一行一行的封装数据）
 * @author Administrator
 *
 */
class BeanMapper implements RowMapper<Account>{
	public Account mapRow(ResultSet rs, int rowNum) throws SQLException {
		Account ac = new Account();
		ac.setId(rs.getInt("id"));
		ac.setName(rs.getString("name"));
		ac.setMoney(rs.getDouble("money"));
		return ac;
	}
}

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