[JAVAEE]实验05：Spring事务管理

1.Spring JDBC

1.1applicationContext.xml内配置好数据库相关信息

 
   <context:component-scan base-package="com.ch5"/>
   
   <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
   		
   		<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
   		
   		<property name="url" value="jdbc:mysql://localhost:3306/springtest?characterEncoding=utf8"/>
   		
   		<property name="username" value="root"/>
   		
   		<property name="password" value="363316495"/>
   bean>
   
   <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
   		<property name="dataSource" ref="dataSource"/>
   bean>

1.2创建实体类MyUser

public class MyUser {
   
	private Integer uid;
	private String uname;
	private String usex;
	public Integer getUid() {
   
		return uid;
	}
	public void setUid(Integer uid) {
   
		this.uid = uid;
	}
	public String getUname() {
   
		return uname;
	}
	public void setUname(String uname) {
   
		this.uname = uname;
	}
	public String getUsex() {
   
		return usex;
	}
	public void setUsex(String usex) {
   
		this.usex = usex;
	}
	public String toString() {
   
		return "myUser [uid=" + uid +", uname=" + uname + ", usex=" + usex + "]";
	}
}

1.3创建数据库访问层TestDao
接口类：

package ch5;
import java.util.List;
public interface TestDao {
   
	public int update(String sql, Object[] param);
	public List<MyUser> query(String sql, Object[] param);
}
实现类：
@Repository("testDao")
public class TestDaoImpl implements TestDao{
   
	//自动装配
	 @Autowired
	//使用配置文件中的JDBC（相当于依赖注入了）
	private JdbcTemplate jdbcTemplate;
	
	 //更新方法
	@Override
	public int update(String sql, Object[] param) {
   
		return jdbcTemplate.update(sql, param);
	}
	
	//查询方法
	@Override
	public List<MyUser> query(String sql, Object[] param) {
   
		RowMapper<MyUser> rowMapper = new BeanPropertyRowMapper<MyUser>(MyUser.class);