一、创建Maven项目
1、创建新项目
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2、选择Maven，然后点击Next
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3、设置项目坐标，点击Finish开始构建项目
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5、等待项目构建完成即可
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二、修改pom文件
1、设置项目编码格式及JDK版本
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.encoding>UTF-8</maven.compiler.encoding>
<java.version>1.8</java.version>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
2、添加mybatis相关依赖
<dependencies>
<!--mybatis坐标-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.5</version>
</dependency>
<!--mysql驱动坐标-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.6</version> <scope>runtime</scope>
</dependency>
<!--单元测试坐标-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!--日志坐标-->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.12</version>
</dependency>
</dependencies>
三、创建member表以及实体类文件
1、创建member表
DROP TABLE IF EXISTS `member`;
CREATE TABLE `member` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`account` varchar(50) DEFAULT NULL,
`password` varchar(50) DEFAULT NULL,
`username` varchar(50) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;
2、创建member实体类
package com.yinyw.china.pojo;
import java.io.Serializable;
public class Member implements Serializable {
private static final long serialVersionUID = 8592976086905189654L;
/**
* 会员编号
*/
private Integer id;
/**
* 账号
*/
private String account;
/**
* 密码
*/
private String password;
/**
* 用户姓名
*/
private String username;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getAccount() {
return account;
}
public void setAccount(String account) {
this.account = account;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
@Override
public String toString() {
return "Member{" +
"id=" + id +
", account='" + account + '\'' +
", password='" + password + '\'' +
", username='" + username + '\'' +
'}';
}
}
四、创建Mybatis核心配置文件
1、创建SqlMapConfig.xml文件
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<properties resource="jdbc.properties"></properties>
<environments default="dev">
<environment id="dev">
<transactionManager type="JDBC"></transactionManager>
<dataSource type="POOLED">
<property name="driver" value="${jdbc.driver}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</dataSource>
</environment>
</environments>
</configuration>
2、创建jdbc.properties文件
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://192.168.0.101:3306/mybatis
jdbc.username=root
jdbc.password=root
五、创建操作member表的接口以及映射文件
1、创建IMemberMapper接口
package com.yinyw.china.mapper;
import com.yinyw.china.pojo.Member;
public interface IMemberMapper {
/**
* 保存用户信息
* @param member 用户信息
*/
void saveMember(Member member);
/**
* 删除用户信息
* @param id 用户编号
*/
void deleteMemberById(Integer id);
/**
* 更新用户信息
* @param member 用户信息
*/
void updateMember(Member member);
/**
* 查询用户信息
* @param id 用户编号
* @return
*/
Member queryMember(Integer id);
}
2、创建MemberMapper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.yinyw.china.mapper.IMemberMapper">
<insert id="saveMember" parameterType="com.yinyw.china.pojo.Member">
INSERT INTO member (account,password,username) VALUES(#{account},#{password},#{username})
</insert>
<delete id="deleteMemberById" parameterType="java.lang.Integer">
DELETE FROM member WHERE ID = #{id}
</delete>
<update id="updateMember" parameterType="com.yinyw.china.pojo.Member">
UPDATE member SET account = #{account} , password = #{password} , username = #{username}
</update>
<select id="queryMember" parameterType="java.lang.Integer" resultType="com.yinyw.china.pojo.Member">
SELECT id,account,password,username FROM member WHERE id = #{id}
</select>
</mapper>
3、在SqlConfiguration.xml文件中引入mapper映射文件
<!-- 在最底部添加如下标签 -->
<mappers>
<mapper resource="mappers/MemberMapper.xml"></mapper>
</mappers>
六、创建测试类测试Mybatis
import com.yinyw.china.mapper.IMemberMapper;
import com.yinyw.china.pojo.Member;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.junit.Before;
import org.junit.Test;
import java.io.IOException;
import java.io.InputStream;
public class MybatisTest {
private IMemberMapper memberMapper;
@Before
public void getSqlSessionFactory() throws IOException {
InputStream resourceAsStream = Resources.getResourceAsStream("SqlConfiguration.xml");
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(resourceAsStream);
SqlSession sqlSession = sqlSessionFactory.openSession(true);
memberMapper = sqlSession.getMapper(IMemberMapper.class);
}
@Test
public void testSaveMember() {
Member member = new Member();
member.setAccount("3399889");
member.setPassword("1234qwer");
member.setUsername("张三");
memberMapper.saveMember(member);
System.out.printf("保存用户信息成功");
}
@Test
public void testQueryMember() {
Member member = memberMapper.queryMember(3);
System.out.printf("查询用户信息成功:" + member.toString());
}
@Test
public void testUpdateMember() {
Member member = memberMapper.queryMember(3);
member.setPassword("qwer1234");
memberMapper.updateMember(member);
member = memberMapper.queryMember(3);
System.out.printf("更新用户信息成功:" + member.toString());
}
@Test
public void testDeleteMember() {
memberMapper.deleteMemberById(3);
Member member = memberMapper.queryMember(3);
System.out.printf("删除用户信息成功:" + member);
}
}
