1.導包(配置pom.xml)
一定要用這個網站:https://mvnrepository.com/

點擊查看代碼
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.4</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.47</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.9</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.9</version>
</dependency>
</dependencies>
2.創建mybatis核心組態檔(mybatis-config.xml)
去官網中文檔案入門里面復制也ok

點擊查看代碼
<?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>
<properties resource="jdbc.properties">
</properties>
<typeAliases>
<package name="com.mhys.bean" />
</typeAliases>
<environments default="development">
<environment id="development">
<transactionManager type="JDBC"/>
<dataSource type="POOLED">
<property name="driver" value="https://www.cnblogs.com/eafkng/archive/2022/04/19/${driverClassName}"/>
<property name="url" value="https://www.cnblogs.com/eafkng/archive/2022/04/19/${url}"/>
<property name="username" value="https://www.cnblogs.com/eafkng/archive/2022/04/19/${username}"/>
<property name="password" value="https://www.cnblogs.com/eafkng/archive/2022/04/19/${password}"/>
</dataSource>
</environment>
</environments>
<mappers>
<package name="com.mhys.mapper"/>
</mappers>
</configuration>
3.創建物體類(注意欄位要和表里欄位對應)

這是我的資料庫欄位

4.創建jdbc和logo4j配置檔案


5.創建mapper介面(介面命名和映射檔案一致)

6.創建測驗類

點擊查看代碼
@Test
public void testSelect() {
try {
InputStream is=Resources.getResourceAsStream("mybatis-config.xml");
SqlSessionFactory sf=new SqlSessionFactoryBuilder().build(is);
SqlSession session=sf.openSession();//創建一次對話(類似于mysql的對話=connection)
AdminMapper am=session.getMapper(AdminMapper.class);
List<Admin> list=am.findAdmin();
System.out.println(list.toString());
session.commit();
session.close();
is.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Test
public void testDelete() {
try {
InputStream is=Resources.getResourceAsStream("mybatis-config.xml");
SqlSessionFactory sf=new SqlSessionFactoryBuilder().build(is);
SqlSession session=sf.openSession();//創建一次對話(類似于mysql的對話=connection)
AdminMapper am=session.getMapper(AdminMapper.class);
int num=am.deleteAdmin("4");
System.out.println(num);
session.commit();
session.close();
is.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Test
public void testAdd() {
try {
InputStream is=Resources.getResourceAsStream("mybatis-config.xml");
SqlSessionFactory sf=new SqlSessionFactoryBuilder().build(is);
SqlSession session=sf.openSession();//創建一次對話(類似于mysql的對話=connection)
AdminMapper am=session.getMapper(AdminMapper.class);
int num=am.addAdmin(new Admin(null, "增加", "李四", "超級管理員", 0));
System.out.println(num);
session.commit();
session.close();
is.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Test
public void testupdate() {
try {
InputStream is=Resources.getResourceAsStream("mybatis-config.xml");
SqlSessionFactory sf=new SqlSessionFactoryBuilder().build(is);
SqlSession session=sf.openSession();//創建一次對話(類似于mysql的對話=connection)
AdminMapper am=session.getMapper(AdminMapper.class);
int num= am.updateAdmin(new Admin(14, "呆瓜", "呆瓜", "老六", 0));
System.out.println(num);
session.commit();
session.close();
is.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
7.呼叫前資料庫

8.呼叫

9.控制臺

10.呼叫后資料庫

后續將會更新使用xml映射使用
轉載請註明出處,本文鏈接:https://www.uj5u.com/houduan/458638.html
標籤:其他
