mybatis 简单配置

1.pom文件

<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
			<version>3.4.1</version>
		</dependency>

		<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>6.0.6</version>
		</dependency>

		<!-- https://mvnrepository.com/artifact/log4j/log4j -->
		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
			<version>1.2.17</version>
		</dependency>

2.配置文件mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
  PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>

	<environments default="development">
		<environment id="development">
			<transactionManager type="JDBC" />
			<dataSource type="POOLED">
				<property name="driver" value="com.mysql.cj.jdbc.Driver" />
				<property name="url"
					value="jdbc:mysql://127.0.0.1:3306/test?serverTimezone=UTC&amp;useUnicode=true&amp;characterEncoding=utf-8&amp;useSSL=true" />
				<property name="username" value="root" />
				<property name="password" value="123456" />
			</dataSource>
		</environment>
	</environments>
	
	<mappers>
		<mapper resource="com/testmybatis/dao/TestMapper.xml" />
	</mappers>
	
</configuration>

3.接口

package com.testmybatis.dao;

import java.util.List;


import com.testmybatis.model.Test;


public interface TestMapper {
	
	
	public List<Test> find(Test test);
	
}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.testmybatis.dao.TestMapper">
	
	<select id="find" resultType="com.testmybatis.model.Test">
		select * from test  where name=#{name};
	</select>

</mapper>

4.查询

String resource = "com/testmybatis/mybatis-config.xml";
		InputStream inputStream;
		try {
			inputStream = Resources.getResourceAsStream(resource);
			SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
			SqlSession session = sqlSessionFactory.openSession();
			try {
				TestMapper mapper = session.getMapper(TestMapper.class);
				Test t=new Test();
				t.setName("adb");
				List<Test> list=mapper.find(t);
				session.commit();
				System.out.println(JSON.toJSONString(list));
			} finally {
				session.close();
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

5.结果

2018-08-07 11:51:30 DEBUG [org.apache.ibatis.logging.LogFactory] Logging initialized using 'class org.apache.ibatis.logging.log4j.Log4jImpl' adapter.
2018-08-07 11:51:30 DEBUG [org.apache.ibatis.datasource.pooled.PooledDataSource] PooledDataSource forcefully closed/removed all connections.
2018-08-07 11:51:30 DEBUG [org.apache.ibatis.datasource.pooled.PooledDataSource] PooledDataSource forcefully closed/removed all connections.
2018-08-07 11:51:30 DEBUG [org.apache.ibatis.datasource.pooled.PooledDataSource] PooledDataSource forcefully closed/removed all connections.
2018-08-07 11:51:30 DEBUG [org.apache.ibatis.datasource.pooled.PooledDataSource] PooledDataSource forcefully closed/removed all connections.
2018-08-07 11:51:30 DEBUG [org.apache.ibatis.transaction.jdbc.JdbcTransaction] Opening JDBC Connection
2018-08-07 11:51:31 DEBUG [org.apache.ibatis.datasource.pooled.PooledDataSource] Created connection 22756955.
2018-08-07 11:51:31 DEBUG [org.apache.ibatis.transaction.jdbc.JdbcTransaction] Setting autocommit to false on JDBC Connection [com.mysql.cj.jdbc.ConnectionImpl@15b3e5b]
2018-08-07 11:51:31 DEBUG [com.testmybatis.dao.TestMapper.find] ==>  Preparing: select * from test where name=?; 
2018-08-07 11:51:31 DEBUG [com.testmybatis.dao.TestMapper.find] ==> Parameters: adb(String)
2018-08-07 11:51:31 DEBUG [com.testmybatis.dao.TestMapper.find] <==      Total: 1
[{"id":1,"name":"adb"}]
2018-08-07 11:51:31 DEBUG [org.apache.ibatis.transaction.jdbc.JdbcTransaction] Resetting autocommit to true on JDBC Connection [com.mysql.cj.jdbc.ConnectionImpl@15b3e5b]
2018-08-07 11:51:31 DEBUG [org.apache.ibatis.transaction.jdbc.JdbcTransaction] Closing JDBC Connection [com.mysql.cj.jdbc.ConnectionImpl@15b3e5b]
2018-08-07 11:51:31 DEBUG [org.apache.ibatis.datasource.pooled.PooledDataSource] Returned connection 22756955 to pool.