谷粒学院)(学习）"/>
后台讲师管理模块（谷粒学院)(学习）
环境搭建
1.先建立一个SpringBoot父工程
直接通过idea创建工程，选择springBoot,将搭建好了的src删除
介绍：
springBoot父工程中的pom中用来编写依赖的版本配置
而真正使用的依赖由子工程自己使用
2.在建立两个子工程
services:里面创建service_edu,service_vod等模块，用于编写具体代码块
service中的pom要引入一系列依赖来提供服务
<dependencys><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!--mybatis-plus--><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId></dependency><!--mysql--><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId></dependency><!-- velocity 模板引擎, Mybatis Plus 代码生成器需要 --><dependency><groupId>org.apache.velocity</groupId><artifactId>velocity-engine-core</artifactId></dependency><!--swagger--><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger2</artifactId></dependency><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger-ui</artifactId></dependency><!--lombok用来简化实体类：需要安装lombok插件--><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency><!--xls--><dependency><groupId>org.apache.poi</groupId><artifactId>poi</artifactId></dependency><dependency><groupId>org.apache.poi</groupId><artifactId>poi-ooxml</artifactId></dependency><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId></dependency><!--httpclient--><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpclient</artifactId></dependency><!--commons-io--><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId></dependency><!--gson--><dependency><groupId>com.google.code.gson</groupId><artifactId>gson</artifactId></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.12</version></dependency>
</dependencies>
同时service中也要引入service_base
<dependency><groupId>com.zushiye</groupId><artifactId>service_base</artifactId><version>0.0.1-SNAPSHOT</version>
</dependency>
service_edu:里面的pom不需要编写依赖配置
首先：
在test中编写代码生成器
package com.zushiye.demo;import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.config.DataSourceConfig;
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.rules.DateType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import org.junit.Test;/*** @author* @since 2018/12/13*/
public class CodeGenerator {@Testpublic void run() {// 1、创建代码生成器AutoGenerator mpg = new AutoGenerator();// 2、全局配置GlobalConfig gc = new GlobalConfig();String projectPath = System.getProperty("user.dir");gc.setOutputDir("E:\\CSDN\\guli_parent\\services\\service_edu" + "/src/main/java");gc.setAuthor("testjava");gc.setOpen(false); //生成后是否打开资源管理器gc.setFileOverride(false); //重新生成时文件是否覆盖//UserServiegc.setServiceName("%sService"); //去掉Service接口的首字母Igc.setIdType(IdType.ID_WORKER_STR); //主键策略gc.setDateType(DateType.ONLY_DATE);//定义生成的实体类中日期类型gc.setSwagger2(true);//开启Swagger2模式mpg.setGlobalConfig(gc);// 3、数据源配置DataSourceConfig dsc = new DataSourceConfig();dsc.setUrl("jdbc:mysql://localhost:3306/guli?characterEncoding=utf8&useSSL=true&serverTimezone=UTC&allowPublicKeyRetrieval=true");dsc.setDriverName("com.mysql.cj.jdbc.Driver");dsc.setUsername("root");dsc.setPassword("030428");dsc.setDbType(DbType.MYSQL);mpg.setDataSource(dsc);// 4、包配置PackageConfig pc = new PackageConfig();pc.setModuleName("eduservice"); //模块名//包 com.atguigu.eduservicepc.setParent("com.zushiye");//包 com.atguigu.eduservice.controllerpc.setController("controller");pc.setEntity("pojo");pc.setService("service");pc.setMapper("mapper");mpg.setPackageInfo(pc);// 5、策略配置StrategyConfig strategy = new StrategyConfig();strategy.setInclude("edu_teacher");strategy.setNaming(NamingStrategy.underline_to_camel);//数据库表映射到实体的命名策略strategy.setTablePrefix(pc.getModuleName() + "_"); //生成实体时去掉表前缀strategy.setColumnNaming(NamingStrategy.underline_to_camel);//数据库表字段映射到实体的命名策略strategy.setEntityLombokModel(true); // lombok 模型 @Accessors(chain = true) setter链式操作strategy.setRestControllerStyle(true); //restful api风格控制器strategy.setControllerMappingHyphenStyle(true); //url中驼峰转连字符mpg.setStrategy(strategy);// 6、执行mpg.execute();}
}
等待自动生成项目结构
**注：**里面的service层是自动实现的mapper层的对数据库的操作
接下来：
编写一个控制层来具体操作
@RestController
@RequestMapping("/eduservice/eduTeacher")
public class EduTeacherController {@Autowiredprivate EduTeacherService eduTeacherService;/*** 查询所有讲师* @return*/@GetMapping("findAll")public R GetListTeacher(){List<EduTeacher> eduTeacherList = eduTeacherService.list(null);return R.ok().data("items",eduTeacherList);}
}
继续：
编写config用于配置一些插件
package com.zushiye.config;import com.baomidou.mybatisplus.core.injector.ISqlInjector;
import com.baomidou.mybatisplus.extension.injector.LogicSqlInjector;
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;/*** Created by IntelliJ IDEA.** @Author : zushiye* @create 2021/11/28 11:22*/@Configuration
@MapperScan("com.zushiye.eduservice.mapper")
@ComponentScan(basePackages = {"com.zushiye"})
public class EduTeacherConfig{/*** 逻辑删除插件*/@Beanpublic ISqlInjector sqlInjector() {return new LogicSqlInjector();}/*** 分页插件*/@Beanpublic PaginationInterceptor paginationInterceptor() {return new PaginationInterceptor();}}
common:里面创建common_uits,service_base等模块用于基础服务
在service_base中引入common_uits依赖
编写全局返回类：
com.zushiyemonUtis->R
和
ResultCode
package com.zushiyemonUtis;import io.swagger.annotations.ApiModelProperty;
import lombok.Data;import java.util.HashMap;
import java.util.Map;/*** Created by IntelliJ IDEA.** @Author : zushiye* @create 2021/11/28 12:28*/
@Data
public class R {@ApiModelProperty(value = "是否成功")private Boolean success;@ApiModelProperty(value = "返回码")private Integer code;@ApiModelProperty(value = "返回消息")private String message;@ApiModelProperty(value = "返回数据")private Map<String, Object> data = new HashMap<String, Object>();private R (){}//成功静态方法public static R ok() {R r = new R();r.setSuccess(true);r.setCode(ResultCode.SUCCESS);r.setMessage("成功");return r;}//失败静态方法public static R error() {R r = new R();r.setSuccess(false);r.setCode(ResultCode.ERROR);r.setMessage("失败");return r;}public R success(Boolean success){this.setSuccess(success);return this;}public R message(String message){this.setMessage(message);return this;}public R code(Integer code){this.setCode(code);return this;}public R data(String key, Object value){this.data.put(key, value);return this;}public R data(Map<String, Object> map){this.setData(map);return this;}
}
package com.zushiyemonUtis;public interface ResultCode {public static Integer SUCCESS = 20000; //成功public static Integer ERROR = 20001; //失败
}
然后：
在pojo中编写查询规则：
pojo ->vo
package com.zushiye.eduservice.pojo.vo;import io.swagger.annotations.ApiModelProperty;
import lombok.Data;/*** Created by IntelliJ IDEA.** @Author : zushiye* @create 2021/11/28 16:18*/@Data
public class TeacherQuery {@ApiModelProperty(value = "教师名称,模糊查询")private String name;@ApiModelProperty(value = "头衔 1高级讲师 2首席讲师")private Integer level;@ApiModelProperty(value = "查询开始时间", example = "2019-01-01 10:10:10")private String begin;//注意，这里使用的是String类型，前端传过来的数据无需进行类型转换@ApiModelProperty(value = "查询结束时间", example = "2019-12-01 10:10:10")private String end;
}
还有增加和更新的自动填充
package com.zushiye.servicebase.Handle;import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import org.apache.ibatis.reflection.MetaObject;
import org.springframework.stereotype.Component;import java.util.Date;/*** Created by IntelliJ IDEA.** @Author : zushiye* @create 2021/11/28 16:50*/
@Component
public class MyMetaObjectHandler implements MetaObjectHandler {@Overridepublic void insertFill(MetaObject metaObject) {this.setFieldValByName("gmtCreate",new Date(),metaObject);this.setFieldValByName("gmtModified",new Date(),metaObject);}@Overridepublic void updateFill(MetaObject metaObject) {this.setFieldValByName("gmtModified",new Date(),metaObject);}
}
最重要的一点：
编写SpringBootapplication
package com.zushiye;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.ComponentScans;/*** Created by IntelliJ IDEA.** @Author : zushiye* @create 2021/11/28 11:25*/@SpringBootApplication
//@ComponentScan("com.zushiye")
public class EduApplication {public static void main(String[] args) {SpringApplication.run(EduApplication.class,args);}
}
补充：
application.yml
server:port: 8001
spring:
# 服务名application:name: service-edu# 环境设置：dev、test、prodprofiles:active: devdatasource:driver-class-name: com.mysql.cj.jdbc.Driverurl: jdbc:mysql://localhost:3306/guli?characterEncoding=utf8&useSSL=true&serverTimezone=UTC&allowPublicKeyRetrieval=trueusername: rootpassword: "030428"
#返回json的全局时间格式jackson:date-format: yyyy-MM-dd HH:mm:sstime-zone: UTC#mybatis日志
mybatis-plus:configuration:log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
3.测试
在common->service_base中编写swagger的测试类
package com.zushiye.servicebase;import com.googlemon.base.Predicates;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.service.Contact;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;/*** Created by IntelliJ IDEA.** @Author : zushiye* @create 2021/11/28 11:52*/@Configuration
@EnableSwagger2
public class SwapperConfig {@Beanpublic Docket webApiConfig(){return new Docket(DocumentationType.SWAGGER_2).groupName("webApi").apiInfo(webApiInfo()).select().paths(Predicates.not(PathSelectors.regex("/admin/.*"))).paths(Predicates.not(PathSelectors.regex("/error.*"))).build();}private ApiInfo webApiInfo(){return new ApiInfoBuilder().title("网站-课程中心API文档").description("本文档描述了课程中心微服务接口定义").version("1.0").contact(new Contact("java", "", "1123@qq")).build();}
}
4.总结：
父工程pom版本
子工程pom依赖
子模块：先留着
项目结构由代码生成器实现
返回值都统一处理R
基础服务写在common中
遵循链式依赖引用
切记编写application
不要忘记查询约束类
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