谷粒学苑项目-第一章service子模块、service_edu二级子模块和代码生成器-1.2

你的名字 2023-10-07 22:34 14阅读 0赞

## 一、创建guli\_parent的子模块service ##

### 1. 子模块service的类型选择maven ###

模块名称为service

### 2. 添加模块类型是POM ###

在<artifactId> 节点后面添加 pom类型

<artifactId>service</artifactId>
    <packaging>pom</packaging>

### 3. 添加项目需要的依赖 ###

<dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
            </dependency>
            <dependency>
                <groupId>com.baomidou</groupId>
                <artifactId>mybatis-plus-boot-starter</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
            </dependency>
            
            <dependency>
                <groupId>com.baomidou</groupId>
                <artifactId>mybatis-plus-generator</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.apache.velocity</groupId>
                <artifactId>velocity-engine-core</artifactId>
            </dependency>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
            </dependency>
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger2</artifactId>
            </dependency>
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger-ui</artifactId>
            </dependency>
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid-spring-boot-starter</artifactId>
            </dependency>
    
        </dependencies>

## 二、搭建service\_edu二级子模块 ##

1. 在父工程service模块下面创建子模块service\_edu,maven工程

2. 模块类型是默认的jar

## 三、MybatisPlus代码生成器 ##

### 1. pom依赖,mybatisPlus,generator,velocity三个都需要 ###

<dependency>
       <groupId>com.baomidou</groupId>
       <artifactId>mybatis-plus-boot-starter</artifactId>
       <version>${mybatis-plus.version}</version>
    </dependency>
    <dependency>
       <groupId>com.baomidou</groupId>
       <artifactId>mybatis-plus-generator</artifactId>
       <version>${mybatis-plus.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.velocity</groupId>
        <artifactId>velocity-engine-core</artifactId>
        <version>${velocity.version}</version>
    </dependency>

### 2. 代码生成器 ###

代码生成器可以快速的根据表结构生成实体类，Mapper层，service层，controller层

public void run() {
    
        FastAutoGenerator.create("jdbc:mysql://localhost:3306/guli?serverTimezone=UTC", "root","yqqlm@gs1cl")
              .globalConfig(builder -> {   //全局配置
                  builder.author("mca")  //设置作者
                         .enableSwagger() //开启swagger模式
                          //.fileOverride() //覆盖已生成文件
                         .dateType(DateType.ONLY_DATE) //定义生成的实体类中日期类型
                                .outputDir("F:\\project\\workspace\\guli_parent\\service\\service_edu" + "/src/main/java");//包路径
                    })
                    .packageConfig(builder -> {  //包配置
                        builder.parent("com.atguigu")  //设置父包名
                                .moduleName("eduservice") //设置父包模块名
                                .controller("controller")
                                .entity("entity")
                                .service("service")
                                .serviceImpl("service.impl")
                                .mapper("mapper")
                                .xml("mapper")
                                .pathInfo(Collections.singletonMap(OutputFile.mapperXml,
                                        "F:\\project\\workspace\\guli_parent\\service\\service_edu\\src\\main\\resources\\mapper\\"));//设置mapperxml生成策略
                    })
                    .strategyConfig(builder -> {  //策略配置
                        builder.mapperBuilder().enableMapperAnnotation().build();
                        builder.addInclude("edu_teacher") //设置需要生成的表名列表
                                //.addTablePrefix()//过滤表名前缀，比如p_test,我们生成的实体类名就是test
    
                                .serviceBuilder() //service策略配置
                                .formatServiceFileName("%sService") //去掉Service接口的首字母I
                                .formatServiceImplFileName("%sServiceImpl")
    
                                .entityBuilder() //实体类策略配置
                                .enableLombok()  //开启lombok
                                .logicDeleteColumnName("is_deleted")  //说明逻辑删除的是哪个字段
                                .enableTableFieldAnnotation()   //属性加上说明注解
    
                                .controllerBuilder()  //controller配置策略
                                .enableHyphenStyle() // 映射路径使用连字符格式，而不是驼峰
                                .formatFileName("%sController")
                                .enableRestStyle()   //开启RestController
    
                                .mapperBuilder() //mapper配置策略
                                .superClass(BaseMapper.class)   //继承哪个父类
                                .formatMapperFileName("%sMapper")
                                .enableMapperAnnotation()   //开启@Mapper注解
                                .formatXmlFileName("%sMapper");
                    }).execute();
    
        }

## 四、手动创建module：edu\_service ##

### 4.1 controller层 ###

@RequestMapping("/eduservice/teacher")
    @RestController
    public class EduTeacherController {
    }

### 4.2 service层 ###

public interface EduTeacherService extends IService<EduTeacher> {
    }

**service.impl**

@Service
    public class EduTeacherServiceImpl  extends ServiceImpl<EduTeacherMapper,EduTeacher> implements EduTeacherService{
    }

### 4.3 mapper层 ###

@Mapper
    public interface EduTeacherMapper extends BaseMapper<EduTeacher> {
    }

## 五、application.yml配置 ##

server:
      port: 8001
    
    spring:
      application:
        name: eduservice
      datasource:
        druid:
          driver-class-name: com.mysql.cj.jdbc.Driver
          url: jdbc:mysql://localhost:3306/guli?serverTimezone=Asia/Shanghai
          username: root
          password: root
      #返回json统一全局时间格式
      jackson:
        date-format: yyyy-MM-dd HH:mm:ss
        time-zone: GMT+8
    
    mybatis-plus:
      configuration:
        log-impl: org.apache.ibatis.logging.stdout.StdOutImpl