Mybatis启用逆向工程的增强版查询实现-----Mybatis框架

超、凢脫俗 2024-03-02 08:49 8阅读 0赞

>     package com.powernode.mybatis.Test;
>     
>     import com.powernode.mybatis.mappers.CarMapper;
>     import com.powernode.mybatis.pojo.Car;
>     import com.powernode.mybatis.utils.SqlSessionUtils;
>     import org.apache.ibatis.session.SqlSession;
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     
>     import java.util.List;
>     
>     public class Test
>     {
>         private static final Logger logger = LoggerFactory.getLogger(Test.class);
>         @org.junit.Test
>         public void Test()
>         {
>             //CarExample查询封装类
>             SqlSession sqlSession = SqlSessionUtils.openSession();
>             CarMapper mapper = sqlSession.getMapper(CarMapper.class);
>             //执行查询
>             //查询一个
>             Car car = mapper.selectByPrimaryKey(49l);
>             logger.info(car.toString());
>             //查询所有
>             List<Car> cars = mapper.selectByExample(null);
>             cars.forEach(c -> logger.info(c.toString()));
>             //按照条件查询
>             //关闭连接
>             SqlSessionUtils.close(sqlSession);
>         }
>     }
> 
>     package com.powernode.mybatis.Test;
>     
>     import com.powernode.mybatis.mappers.CarMapper;
>     import com.powernode.mybatis.pojo.Car;
>     import com.powernode.mybatis.utils.SqlSessionUtils;
>     import org.apache.ibatis.session.SqlSession;
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     
>     import java.util.List;
>     
>     public class Test
>     {
>         private static final Logger logger = LoggerFactory.getLogger(Test.class);
>         @org.junit.Test
>         public void Test()
>         {
>             //CarExample查询封装类
>             SqlSession sqlSession = SqlSessionUtils.openSession();
>             CarMapper mapper = sqlSession.getMapper(CarMapper.class);
>             //执行查询
>             //查询一个
>             Car car = mapper.selectByPrimaryKey(49l);
>             logger.info(car.toString());
>             //查询所有
>             List<Car> cars = mapper.selectByExample(null);
>             cars.forEach(c -> logger.info(c.toString()));
>             //按照条件查询
>             //关闭连接
>             SqlSessionUtils.close(sqlSession);
>         }
>     }

>     <?xml version="1.0" encoding="UTF-8"?>
>     <project xmlns="http://maven.apache.org/POM/4.0.0"
>              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>              xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
>         <modelVersion>4.0.0</modelVersion>
>     
>         <groupId>com.powernode</groupId>
>         <artifactId>mybatis-013-generator2</artifactId>
>         <version>1.0-SNAPSHOT</version>
>         <packaging>jar</packaging>
>         <dependencies>
>             <dependency>
>                 <groupId>org.mybatis</groupId>
>                 <artifactId>mybatis</artifactId>
>                 <version>3.5.10</version>
>             </dependency>
>             <dependency>
>                 <groupId>mysql</groupId>
>                 <artifactId>mysql-connector-java</artifactId>
>                 <version>8.0.33</version>
>             </dependency>
>             <dependency>
>                 <groupId>ch.qos.logback</groupId>
>                 <artifactId>logback-classic</artifactId>
>                 <version>1.2.11</version>
>             </dependency>
>             <dependency>
>                 <groupId>junit</groupId>
>                 <artifactId>junit</artifactId>
>                 <version>4.13.2</version>
>                 <scope>test</scope>
>             </dependency>
>         </dependencies>
>         <properties>
>             <maven.compiler.source>17</maven.compiler.source>
>             <maven.compiler.target>17</maven.compiler.target>
>             <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
>         </properties>
>         
>         <build>
>             
>             <plugins>
>                 <plugin>
>                     
>                     <groupId>org.mybatis.generator</groupId>
>                     <artifactId>mybatis-generator-maven-plugin</artifactId>
>                     <version>1.4.2</version>
>                     
>                     <configuration>
>                         <overwrite>true</overwrite>
>                     </configuration>
>                     <dependencies>
>                         <dependency>
>                             <groupId>mysql</groupId>
>                             <artifactId>mysql-connector-java</artifactId>
>                             <version>8.0.33</version>
>                         </dependency>
>                     </dependencies>
>                 </plugin>
>             </plugins>
>         </build>
>     </project>
> 
>     <?xml version="1.0" encoding="UTF-8"?>
>     <project xmlns="http://maven.apache.org/POM/4.0.0"
>              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>              xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
>         <modelVersion>4.0.0</modelVersion>
>     
>         <groupId>com.powernode</groupId>
>         <artifactId>mybatis-013-generator2</artifactId>
>         <version>1.0-SNAPSHOT</version>
>         <packaging>jar</packaging>
>         <dependencies>
>             <dependency>
>                 <groupId>org.mybatis</groupId>
>                 <artifactId>mybatis</artifactId>
>                 <version>3.5.10</version>
>             </dependency>
>             <dependency>
>                 <groupId>mysql</groupId>
>                 <artifactId>mysql-connector-java</artifactId>
>                 <version>8.0.33</version>
>             </dependency>
>             <dependency>
>                 <groupId>ch.qos.logback</groupId>
>                 <artifactId>logback-classic</artifactId>
>                 <version>1.2.11</version>
>             </dependency>
>             <dependency>
>                 <groupId>junit</groupId>
>                 <artifactId>junit</artifactId>
>                 <version>4.13.2</version>
>                 <scope>test</scope>
>             </dependency>
>         </dependencies>
>         <properties>
>             <maven.compiler.source>17</maven.compiler.source>
>             <maven.compiler.target>17</maven.compiler.target>
>             <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
>         </properties>
>         
>         <build>
>             
>             <plugins>
>                 <plugin>
>                     
>                     <groupId>org.mybatis.generator</groupId>
>                     <artifactId>mybatis-generator-maven-plugin</artifactId>
>                     <version>1.4.2</version>
>                     
>                     <configuration>
>                         <overwrite>true</overwrite>
>                     </configuration>
>                     <dependencies>
>                         <dependency>
>                             <groupId>mysql</groupId>
>                             <artifactId>mysql-connector-java</artifactId>
>                             <version>8.0.33</version>
>                         </dependency>
>                     </dependencies>
>                 </plugin>
>             </plugins>
>         </build>
>     </project>