MyBatis实现传输MySQL数据

MyBatis使用简单的XML或注解用于配置和原始映射，将接口或者Java持久层对象映射成数据库的记录。

下面举个例子：

1.首先来配置一下log4j.properties日志信息文件

# Global logging configuration
log4j.rootLogger=ERROR, stdout
# MyBatis logging configuration...
log4j.logger.com.mybatis.mapper=DEBUG
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

2.在持久层po包中创建MyUser持久化类

package mybatis.po;
public class MyUser {
	private Integer uid;//主键
	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;
	}

	@Override
	public String toString() {//为了方便查看结果，重写了toString方法
		return "User [uid=" + uid +",uname=" + uname + ",usex=" + usex +"]";
	}
}

3.创建核心配置文件mybatis-config.xml

4.在映射层mapper包创建UserMapper.xml文件




	
	
		select * from user where uid = #{uid}