工具包:

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Netbeans8
Maven
MyBatis
項(xiàng)目源碼:https://github.com/sun2shadow/simpleMybatis
使用netbeans創(chuàng)建項(xiàng)目,選擇文件->新建項(xiàng)目->Maven->Web應(yīng)用程序;
打開(kāi)項(xiàng)目目錄,在依賴關(guān)系上右擊->添加依賴關(guān)系->查詢框輸入MySQL->選擇mysql:mysql-connector-java->點(diǎn)開(kāi)選擇對(duì)應(yīng)的mysql驅(qū)動(dòng)版本.
創(chuàng)建數(shù)據(jù)庫(kù)和表
create database foretaste; use foretaste create table user_info(id int(11) not null primary key auto_increment, nickname varchar(50) not null, phone_num char(11) not null, created_time timestamp not null default current_timestamp, last_update_time timestamp not null default current_timestamp);
4. 創(chuàng)建UserInfo的實(shí)體
package com.shadow.foretaste.entity;
import java.util.Date;
/**
*
* @author sunny
*/
public class UserInfo {
private int id;
private String nickname;
private String phoneNum;
private Date createdTime;
private Date lastUpdateTime;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getNickname() {
return nickname;
}
public void setNickname(String nickname) {
this.nickname = nickname;
}
public String getPhoneNum() {
return phoneNum;
}
public void setPhoneNum(String phoneNum) {
this.phoneNum = phoneNum;
}
public Date getCreatedTime() {
return createdTime;
}
public void setCreatedTime(Date createdTime) {
this.createdTime = createdTime;
}
public Date getLastUpdateTime() {
return lastUpdateTime;
}
public void setLastUpdateTime(Date lastUpdateTime) {
this.lastUpdateTime = lastUpdateTime;
}
@Override
public String toString() {
return "UserInfo[id=" + id;
}
}5. 創(chuàng)建UserInfoDao,必須先創(chuàng)建一個(gè)Dao接口,用于mapper綁定時(shí)指明的namspace
package com.shadow.foretaste.dao;
import com.shadow.foretaste.entity.UserInfo;
/**
*
* @author sunny
*/
public interface UserInfoDao {
/**
* 根據(jù)Id查詢用戶信息
* @param id
* @return
*/
UserInfo getUserInfoById(int id);
}6. 點(diǎn)開(kāi)->項(xiàng)目的其他源->src/main/source,在默認(rèn)包上右擊,xml文件,命名為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.jdbc.Driver"/> <property name="url" value="jdbc:mysql://localhost:3306/foretaste?zeroDateTimeBehavior=convertToNull "/> <property name="username" value="root"/> <property name="password" value="mysql123"/> </dataSource> </environment> </environments> <mappers> <mapper resource="mapper/UserInfoMapper.xml" /> </mappers> </configuration>
7. 在source文件下,新建mapper文件夾,并創(chuàng)建UserInfoMapper.xml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.shadow.foretaste.UserInfoDao">
<select id="getUserInfoById" parameterType="int" resultType="com.shadow.foretaste.entity.UserInfo">
select * from user_info where id = #{id}
</select>
</mapper>8. 創(chuàng)建MyBatisUtils獲取sqlSession
package com.shadow.foretaste.util;
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;
/**
*
* @author sunny
*/
public class MyBatisUtils {
private static SqlSessionFactory factory = null;
//初始化session工廠
public static void initFactory() throws Exception{
InputStream inputStream = Resources.getResourceAsStream("mybatis-config.xml");
factory = new SqlSessionFactoryBuilder().build(inputStream);
}
/**
* 獲取sqlSession會(huì)話
* @return
*/
public static SqlSession getSession(){
if(null == factory){
try {
initFactory();
} catch (Exception ex) {
ex.printStackTrace();
}
}
return factory.openSession();
}
}8. 創(chuàng)建測(cè)試方法驗(yàn)證配置
import com.shadow.foretaste.util.MyBatisUtils;
import org.apache.ibatis.session.SqlSession;
import static org.junit.Assert.assertNotNull;
import org.junit.Test;
/**
*
* @author sunny
*/
public class TesMyBatis {
@Test
public void testMyBatis(){
SqlSession session = MyBatisUtils.getSession();
assertNotNull(session);
if(session != null){
session.close();
}
}
}好了,到此myBatis的框架就搭建完畢了.
文章名稱(chēng):MyBatis搭建項(xiàng)目
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