1.创建Maven项目,选择Archetype为archetype-maven-quickstart
2.添加mysql依赖
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.6</version>
</dependency>
注意:版本太低会有问题,这里使用5.1.6测试通过
3.mybatis依赖
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.0</version>
</dependency>
4.创建配置文件
<?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>
<typeAliases>
<typeAlias type="com.codingdict.test_mybatis.Person" alias="Person" />
</typeAliases>
<environments default="development">
<environment id="development">
<transactionManager type="JDBC"/>
<dataSource type="POOLED">
<property name="driver" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://127.0.0.1:3308/codingdict"/>
<property name="username" value="root"/>
<property name="password" value="123456"/>
</dataSource>
</environment>
</environments>
<mappers>
<mapper resource="com/codingdict/test_mybatis/PersonMapper.xml" />
</mappers>
</configuration>
5.创建接口
package com.codingdict.test_mybatis;
public interface IPerson {
public Integer insertPerson(Person p);
public Person getPerson(int pid);
}
6.创建实体类
package com.codingdict.test_mybatis;
public class Person {
public Person() {
super();
}
public Person(int id, String name) {
super();
this.id = id;
this.name = name;
}
private int id;
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;
}
private String name;
}
7.创建Mapper映射文件
<?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.codingdict.test_mybatis.IPerson">
<select id="insertPerson" parameterType="Person" resultType="java.lang.Integer">
insert into person(id,name) values(#{id},#{name})
</select>
<select id="getPerson" resultType="Person" parameterType="java.lang.Integer">
select * from Person where id=#{id}
</select>
</mapper>
8.测试
package com.codingdict.test_mybatis;
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 App {
public static void main(String[] args) {
String resource = "com/codingdict/test_mybatis/config.xml";
InputStream inputStream = null;
try {
inputStream = Resources.getResourceAsStream(resource);
} catch (IOException e) {
e.printStackTrace();
}
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
SqlSession sqlSession = sqlSessionFactory.openSession();
IPerson personOperation = sqlSession.getMapper(IPerson.class);
Person p = personOperation.getPerson(1);
System.out.println(p.getName());
}
}