mybaties学习实例

将之前的学习代码整理一下发一下

导包之后在src下创建
log4j.properties
SqlMapConfig.xml
SqlMapConfig.xml的内容如下

log4j:

### \u8BBE\u7F6ELogger\u8F93\u51FA\u7EA7\u522B\u548C\u8F93\u51FA\u76EE\u7684\u5730 ###
 
log4j.rootLogger=debug,stdout,logfile
 
### \u628A\u65E5\u5FD7\u4FE1\u606F\u8F93\u51FA\u5230\u63A7\u5236\u53F0 ###
 
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
#log4j.appender.stdout.Target=System.err
log4j.appender.stdout.layout=org.apache.log4j.SimpleLayout
 
 
### \u628A\u65E5\u5FD7\u4FE1\u606F\u8F93\u51FA\u5230\u6587\u4EF6\uFF1Ajbit.log ###
log4j.appender.logfile=org.apache.log4j.FileAppender
log4j.appender.logfile.File=jbit.log
log4j.appender.logfile.layout=org.apache.log4j.PatternLayout
log4j.appender.logfile.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %F %p %m%n
 
 
###\u663E\u793ASQL\u8BED\u53E5\u90E8\u5206
log4j.logger.com.ibatis=DEBUG
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=DEBUG
log4j.logger.com.ibatis.common.jdbc.ScriptRunner=DEBUG
log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=DEBUG
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG

在包tt（忽略命名）下 创建 user类

package tt;

public class user {
private int id;
private String name;
@Override
public String toString() {
	return "user [id=" + id + ", name=" + name + "]";
}
public user(int id, String name) {
	super();
	this.id = id;
	this.name = name;
}
public int getId() {
	return id;
}
public void setId(int id) {
	this.id = id;
}
public String getName() {
	return name;
}
public void setName(String name) {
	this.name = name;
}
public user(){super();}
}

创建mybatiesutils.java实例去加载 xml文件

package tt;

import java.io.IOException;
import java.io.InputStream;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

public class MyBatisUtil {
	private static SqlSessionFactory sqlSessionFactory = null;
	static {
		InputStream in;
		try {
			in = Resources.getResourceAsStream("SqlMapConfig.xml");
			sqlSessionFactory = new SqlSessionFactoryBuilder().build(in);
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	private MyBatisUtil() {
	};
	public static SqlSession getSqlSession() {
		return sqlSessionFactory.openSession();
	}
}

根据xml中 mappers 创建包test
然后创建接口 inteface

package test;

import tt.user;


public interface inteface {
 user findUserById(user user);
 user selectbytitle(String title);
}

再然后创建inteface.xml（没有配置的话名称相同）

'title',
'deng'

	
		select * from count
			where 1=1 
		
		and id=#{id}
		
		
		and name like '%${name}%'
		
	
	
	select * from count where name=#{title}
	

最后测试一下 写一个测试类Tests

public class Tests {

@Test
public void testFindUserById() {

    //获取SqlSession
SqlSession session = MyBatisUtil.getSqlSession();
    //解析class文件获取接口方法
inteface blogMapper = session.getMapper(inteface.class);
user uu=new user();
//赋值
uu.setName("李四");
user blog = blogMapper.findUserById(uu);	
user bb=blogMapper.selectbytitle("李四");
System.out.println(blog);
System.out.println(bb);
session.close();
	}
}

运行 结束