spring boot 使用Mybatis plus

Bertha 。 2022-11-26 08:48 100阅读 0赞

### spring boot 使用Mybatis plus ###

*   *   *  代码生成器 pom.xml
         *  启动类

### 代码生成器 pom.xml ###

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    	<modelVersion>4.0.0</modelVersion>
    	<parent>
    		<groupId>org.springframework.boot</groupId>
    		<artifactId>spring-boot-starter-parent</artifactId>
    		<version>2.3.2.RELEASE</version>
    		<relativePath /> 
    	</parent>
    	<groupId>com.antrain</groupId>
    	<artifactId>shop</artifactId>
    	<version>0.0.1-SNAPSHOT</version>
    	<name>demo</name>
    	<description>java电商项目</description>
    
    	<properties>
    		<java.version>11</java.version>
    		<maven.compiler.source>11</maven.compiler.source>
    		<maven.compiler.target>11</maven.compiler.target>
    		<maven.compiler.compilerVersion>11</maven.compiler.compilerVersion>
    	</properties>
    
    	<dependencies>
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-web</artifactId>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-devtools</artifactId>
    			<scope>runtime</scope>
    			<optional>true</optional>
    		</dependency>
    		<dependency>
    			<groupId>mysql</groupId>
    			<artifactId>mysql-connector-java</artifactId>
    			<version>8.0.13</version>
    			<scope>runtime</scope>
    		</dependency>
    		<dependency>
    			<groupId>org.projectlombok</groupId>
    			<artifactId>lombok</artifactId>
    			<version>1.18.12</version>
    			<optional>true</optional>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-test</artifactId>
    			<scope>test</scope>
    			<exclusions>
    				<exclusion>
    					<groupId>org.junit.vintage</groupId>
    					<artifactId>junit-vintage-engine</artifactId>
    				</exclusion>
    			</exclusions>
    		</dependency>
    
    		<dependency>
    			<groupId>com.baomidou</groupId>
    			<artifactId>mybatis-plus-boot-starter</artifactId>
    			<version>3.3.2</version>
    		</dependency>
    
    		<dependency>
    			<groupId>com.baomidou</groupId>
    			<artifactId>mybatis-plus-generator</artifactId>
    			<version>3.3.2</version>
    		</dependency>
    
    		<dependency>
    			<groupId>org.freemarker</groupId>
    			<artifactId>freemarker</artifactId>
    			<version>2.3.30</version>
    		</dependency>
    
    		<dependency>
    			<groupId>com.alibaba</groupId>
    			<artifactId>druid</artifactId>
    			<version>1.1.12</version>
    		</dependency>
    
    		<dependency>
    			<groupId>com.alibaba</groupId>
    			<artifactId>fastjson</artifactId>
    			<version>1.2.70</version>
    		</dependency>
    	</dependencies>
    
    	<build>
    		<plugins>
    			<plugin>
    				<groupId>org.springframework.boot</groupId>
    				<artifactId>spring-boot-maven-plugin</artifactId>
    			</plugin>
    		</plugins>
    	</build>
    
    </project>

*  CodeGenerator

package com.antrain.vuedemo;
    
    import java.util.ArrayList;
    import java.util.List;
    import com.baomidou.mybatisplus.core.toolkit.StringPool;
    import com.baomidou.mybatisplus.generator.AutoGenerator;
    import com.baomidou.mybatisplus.generator.config.DataSourceConfig;
    import com.baomidou.mybatisplus.generator.config.FileOutConfig;
    import com.baomidou.mybatisplus.generator.config.GlobalConfig;
    import com.baomidou.mybatisplus.generator.config.PackageConfig;
    import com.baomidou.mybatisplus.generator.config.StrategyConfig;
    import com.baomidou.mybatisplus.generator.config.po.TableInfo;
    import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
    import com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine;
    
    
    public class CodeGenerator { 
    
    
        public static void main(String[] args) { 
            // 定义临时需要用到的数据
            String url = "jdbc:mysql://localhost:3306/test?useSSL=false&serverTimezone=Asia/Shanghai";
            String parentName ="com.antrain.vuedemo";
            String tablePrefix = "";
            // 代码生成器
            AutoGenerator mpg = new AutoGenerator();
            // 全局配置
            GlobalConfig gc = new GlobalConfig();
            String projectPath = System.getProperty("user.dir");
            gc.setOutputDir(projectPath + "/src/main/java");
            gc.setAuthor("antrain");
            gc.setOpen(false);
            // gc.setSwagger2(true); 实体属性 Swagger2 注解
            mpg.setGlobalConfig(gc);
            // 数据源配置
            DataSourceConfig dsc = new DataSourceConfig();
            dsc.setUrl(url);
            dsc.setDriverName("com.mysql.cj.jdbc.Driver");
            dsc.setUsername("root");
            dsc.setPassword("654321");
            mpg.setDataSource(dsc);
            // 包配置
            PackageConfig pc = new PackageConfig();
            pc.setParent(parentName);
            mpg.setPackageInfo(pc);
            // 如果模板引擎是 freemarker
            String templatePath = "/templates/mapper.xml.ftl";
            // 自定义输出配置
            List<FileOutConfig> focList = new ArrayList<>();
            // 自定义配置会被优先输出
            focList.add(new FileOutConfig(templatePath) { 
                @Override
                public String outputFile(TableInfo tableInfo) { 
                    // 自定义输出文件名 ， 如果你 Entity 设置了前后缀、此处注意 xml 的名称会跟着发生变化！！
                    return projectPath + "/src/main/resources/mapper/" + pc.getModuleName() + "/"
                            + tableInfo.getEntityName() + "Mapper" + StringPool.DOT_XML;
                }
            });
            // 策略配置
            StrategyConfig strategy = new StrategyConfig();
            strategy.setNaming(NamingStrategy.underline_to_camel);
            // 将 user_role 转成UserRole 表名
            strategy.setColumnNaming(NamingStrategy.underline_to_camel);
            // 使用lombok
            strategy.setEntityLombokModel(true);
            // 使用@RestController 注解
            strategy.setRestControllerStyle(true);
            // 生成表名时去除前缀
            strategy.setTablePrefix(tablePrefix);
            // 生成哪些表的实体类，默认全部
            // strategy.setInclude();
            strategy.setControllerMappingHyphenStyle(true);
            mpg.setStrategy(strategy);
            mpg.setTemplateEngine(new FreemarkerTemplateEngine());
            mpg.execute();
        }
    }

### 启动类 ###

@SpringBootApplication
    @MapperScan("com.antrain.shop.mapper")
    public class DemoApplication { 
    
    	public static void main(String[] args) { 
    		SpringApplication application = new SpringApplication(DemoApplication.class); 
            application.setBannerMode(Banner.Mode.OFF);//关闭
            application.run(args);  
    	}
    
    }