搭建项目环境

创建一个父工程，pom类型（父工程是pom类型意味着什么？）管理依赖版本和放公共依赖父工程建成springboot工程

创建若干个子模块子模块建成maven工程

每个子模块下面还可以在创建子模块子子模块建成maven工程

在阿里云的数据库规范里，必须要有id，创建时间，修改时间这三个字段，id的数据长度为19，因为mp自动生成的id长度为19

本项目资料已下载，内容包含：

数据库脚本

每日笔记

先创建一个父项目：使用spring initializr创建

配置pom.xml文件

<?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>
    <modules>
        <module>service</module>
        <module>common</module>
    </modules>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.5.3</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.atguigu</groupId>
    <artifactId>guli_parent</artifactId>
    <packaging>pom</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>guli_parent</name>
    <description>Demo project for Spring Boot</description>
    <properties>

        <java.version>15</java.version>

        <guli.version>0.0.1-SNAPSHOT</guli.version>

        <mybatis-plus.version>3.0.5</mybatis-plus.version>

        <velocity.version>2.0</velocity.version>

        <swagger.version>2.7.0</swagger.version>

        <aliyun.oss.version>2.8.3</aliyun.oss.version>

        <jodatime.version>2.10.1</jodatime.version>

        <poi.version>3.17</poi.version>

        <commons-fileupload.version>1.3.1</commons-fileupload.version>

        <commons-io.version>2.6</commons-io.version>

        <httpclient.version>4.5.1</httpclient.version>

        <jwt.version>0.7.0</jwt.version>

        <aliyun-java-sdk-core.version>4.3.3</aliyun-java-sdk-core.version>

        <aliyun-sdk-oss.version>3.1.0</aliyun-sdk-oss.version>

        <aliyun-java-sdk-vod.version>2.15.2</aliyun-java-sdk-vod.version>

        <aliyun-java-vod-upload.version>1.4.11</aliyun-java-vod-upload.version>

        <aliyun-sdk-vod-upload.version>1.4.11</aliyun-sdk-vod-upload.version>

        <fastjson.version>1.2.28</fastjson.version>

        <gson.version>2.8.2</gson.version>

        <json.version>20170516</json.version>

        <commons-dbutils.version>1.7</commons-dbutils.version>

        <canal.client.version>1.1.0</canal.client.version>

        <docker.image.prefix>zx</docker.image.prefix>

        <cloud-alibaba.version>0.2.2.RELEASE</cloud-alibaba.version>

    </properties>
    <dependencyManagement>
        <dependencies>
            <!--Spring Cloud-->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Hoxton.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${cloud-alibaba.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!--mybatis-plus 持久层-->
            <dependency>
                <groupId>com.baomidou</groupId>
                <artifactId>mybatis-plus-boot-starter</artifactId>
                <version>${mybatis-plus.version}</version>
            </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>
                <version>${velocity.version}</version>
            </dependency>

            <!--swagger-->
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger2</artifactId>
                <version>${swagger.version}</version>
            </dependency>
            <!--swagger ui-->
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger-ui</artifactId>
                <version>${swagger.version}</version>
            </dependency>

            <!--aliyunOSS-->
            <dependency>
                <groupId>com.aliyun.oss</groupId>
                <artifactId>aliyun-sdk-oss</artifactId>
                <version>${aliyun.oss.version}</version>
            </dependency>

            <!--日期时间工具-->
            <dependency>
                <groupId>joda-time</groupId>
                <artifactId>joda-time</artifactId>
                <version>${jodatime.version}</version>
            </dependency>

            <!--xls-->
            <dependency>
                <groupId>org.apache.poi</groupId>
                <artifactId>poi</artifactId>
                <version>${poi.version}</version>
            </dependency>
            <!--xlsx-->
            <dependency>
                <groupId>org.apache.poi</groupId>
                <artifactId>poi-ooxml</artifactId>
                <version>${poi.version}</version>
            </dependency>

            <!--文件上传-->
            <dependency>
                <groupId>commons-fileupload</groupId>
                <artifactId>commons-fileupload</artifactId>
                <version>${commons-fileupload.version}</version>
            </dependency>

            <!--commons-io-->
            <dependency>
                <groupId>commons-io</groupId>
                <artifactId>commons-io</artifactId>
                <version>${commons-io.version}</version>
            </dependency>

            <!--httpclient-->
            <dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpclient</artifactId>
                <version>${httpclient.version}</version>
            </dependency>

            <dependency>
                <groupId>com.google.code.gson</groupId>
                <artifactId>gson</artifactId>
                <version>${gson.version}</version>
            </dependency>

            <!-- JWT -->
            <dependency>
                <groupId>io.jsonwebtoken</groupId>
                <artifactId>jjwt</artifactId>
                <version>${jwt.version}</version>
            </dependency>

            <!--aliyun-->
            <dependency>
                <groupId>com.aliyun</groupId>
                <artifactId>aliyun-java-sdk-core</artifactId>
                <version>${aliyun-java-sdk-core.version}</version>
            </dependency>
            <dependency>
                <groupId>com.aliyun.oss</groupId>
                <artifactId>aliyun-sdk-oss</artifactId>
                <version>${aliyun-sdk-oss.version}</version>
            </dependency>
            <dependency>
                <groupId>com.aliyun</groupId>
                <artifactId>aliyun-java-sdk-vod</artifactId>
                <version>${aliyun-java-sdk-vod.version}</version>
            </dependency>
            <dependency>
                <groupId>com.aliyun</groupId>
                <artifactId>aliyun-java-vod-upload</artifactId>
                <version>${aliyun-java-vod-upload.version}</version>
            </dependency>
            <dependency>
                <groupId>com.aliyun</groupId>
                <artifactId>aliyun-sdk-vod-upload</artifactId>
                <version>${aliyun-sdk-vod-upload.version}</version>
            </dependency>
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>${fastjson.version}</version>
            </dependency>
            <dependency>
                <groupId>org.json</groupId>
                <artifactId>json</artifactId>
                <version>${json.version}</version>
            </dependency>

            <dependency>
                <groupId>commons-dbutils</groupId>
                <artifactId>commons-dbutils</artifactId>
                <version>${commons-dbutils.version}</version>
            </dependency>

            <dependency>
                <groupId>com.alibaba.otter</groupId>
                <artifactId>canal.client</artifactId>
                <version>${canal.client.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

因为父工程用不到src文件夹，所以把src文件夹删除了

创建一个子模块service

使用maven初始化，注意选对Parent

配置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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>guli_parent</artifactId>
        <groupId>com.atguigu</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>service</artifactId>
    <packaging>pom</packaging>
    <modules>
        <module>service_edu</module>
    </modules>
    <dependencies>
        <dependency>
            <groupId>com.atguigu</groupId>
            <artifactId>service_base</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>


<!--        <dependency>-->
<!--            <groupId>org.springframework.cloud</groupId>-->
<!--            <artifactId>spring-cloud-starter-netflix-ribbon</artifactId>-->
<!--        </dependency>-->

        <!--hystrix依赖，主要是用  @HystrixCommand -->
<!--        <dependency>-->
<!--            <groupId>org.springframework.cloud</groupId>-->
<!--            <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>-->
<!--        </dependency>-->

        <!--服务注册-->
<!--        <dependency>-->
<!--            <groupId>org.springframework.cloud</groupId>-->
<!--            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>-->
<!--        </dependency>-->
        <!--服务调用-->
<!--        <dependency>-->
<!--            <groupId>org.springframework.cloud</groupId>-->
<!--            <artifactId>spring-cloud-starter-openfeign</artifactId>-->
<!--        </dependency>-->

        <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>

</project>

src目录用不到，删掉。

创建service的子模块service_edu

配置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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>service</artifactId>
        <groupId>com.atguigu</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>service_edu</artifactId>


</project>

src保留！

按图示创建目录和文件

CodeGenerator是代码生成器，代码生成器在测试类里就可以了，他是在项目运行前生成那些文件

package com.atguigu;

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 {

    @Test
    public 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(projectPath + "/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
        gc.setServiceName("%sService");    //去掉Service接口的首字母I
        gc.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?serverTimezone=GMT%2B8");
        dsc.setDriverName("com.mysql.cj.jdbc.Driver");
        dsc.setUsername("root");
        dsc.setPassword("root");
        dsc.setDbType(DbType.MYSQL);
        mpg.setDataSource(dsc);

        // 4、包配置
        PackageConfig pc = new PackageConfig();
        pc.setModuleName("eduservice"); //模块名
        pc.setParent("com.atguigu");
        pc.setController("controller");
        pc.setEntity("entity");
        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();
    }
}

代码生成器格式是这么个格式，具体的参数需要替换成与项目匹配的

执行测试方法后就会生成相应的包和代码（config不是，EduApplication是自己建的启动类）

package com.atguigu.eduservice;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;

@SpringBootApplication
@ComponentScan(basePackages = {"com.atguigu"})
public class EduApplication {
    public static void main(String[] args) {
        SpringApplication.run(EduApplication.class,args);
    }
}

启动类有注释：@SpringBootApplication

@ComponentScan是组件扫描，用来扫描XXX？

package com.atguigu.eduservice.controller;


import com.atguigu.eduservice.entity.EduTeacher;
import com.atguigu.eduservice.service.EduTeacherService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * <p>
 * 讲师 前端控制器
 * </p>
 *
 * @author testjava
 * @since 2021-08-06
 */
@Api(tags="讲师管理")
@RestController
@RequestMapping("/eduservice/teacher")
public class EduTeacherController {
    @Autowired
    private EduTeacherService teacherService;
    @ApiOperation(value = "所有讲师列表")
    @GetMapping("findAll")
    public List<EduTeacher> findAllTeather(){
        List <EduTeacher>list = teacherService.list(null);
        return list;
    }
    @ApiOperation(value = "逻辑删除讲师")
    @DeleteMapping("{id}")
    public boolean removeTeacher(@ApiParam(name="id",value = "讲师ID",required = true) @PathVariable String id){
        boolean flag=teacherService.removeById(id);
        return flag;
    }
}

在Controller中，使用@Autowired注入依赖对象

方法一：查询所有数据

返回一个EduTeacher类型的集合，令teacherService对象调动list方法，参数填条件，此处无条件查询，填null。

注解@GetMapping（“findALL”）用来表示请求类型和请求路径

@ApiOperation(value="")用来给swagger页面注释

方法二：逻辑删除讲师

逻辑删除，并不在数据库中真的删除，而只是令字段“是否删除”的值为真，该条数据任然存在数据库中。

实现逻辑删除需要在实体类的字段isDeleted前加上注释@TableLogic

令teacherService对象调动removeById方法，通过id删除数据

@DeleteMapping（“{id}”）

@ApiParam(name="id",value = "讲师ID",required = true)

@ApiParam也是给swagger页面注释的

@Api(tags="讲师管理")同理

写配置文件

package com.atguigu.eduservice.config;

import com.baomidou.mybatisplus.core.injector.ISqlInjector;
import com.baomidou.mybatisplus.extension.injector.LogicSqlInjector;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
@MapperScan("com.atguigu.eduservice.mapper")
public class EduConfig {
    @Bean
    public ISqlInjector sqlInjector(){
        return new LogicSqlInjector();
    }
}

用@Configuration以标识这是一个配置文件

@MapperScan开启mapper扫描器

整合swagger

在父工程下创建子模块common

删除src目录，配置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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>guli_parent</artifactId>
        <groupId>com.atguigu</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>common</artifactId>
    <packaging>pom</packaging>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <scope>provided </scope>
        </dependency>

        <!--mybatis-plus-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <scope>provided </scope>
        </dependency>

        <!--lombok用来简化实体类：需要安装lombok插件-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <scope>provided </scope>
        </dependency>

        <!--swagger-->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <scope>provided </scope>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <scope>provided </scope>
        </dependency>

        <!-- redis -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

        <!-- spring2.X集成redis所需common-pool2
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-pool2</artifactId>
            <version>2.6.0</version>
        </dependency>-->
    </dependencies>
    <modules>
        <module>service_base</module>
    </modules>


</project>

在common下创建子模块service_base

配置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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>common</artifactId>
        <groupId>com.atguigu</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>service_base</artifactId>




</project>

写配置文件

package com.atguigu.servicebase;

import com.google.common.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;

@Configuration
@EnableSwagger2
public class SwaggerConfig {
    @Bean
    public 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("Helen", "http://atguigu.com", "55317332@qq.com"))
                .build();
    }
}

可能遇到的问题：

模块resources文件夹没有图标，或者Java文件夹没有图标且配置文件不是小树叶

https://blog.csdn.net/weixin_46125816/article/details/108820572

Maven 创建 module 出现 Ignored pom.xml - 我出一条鱼 - 博客园 (cnblogs.com)

posted @ 2021-08-06 15:07 北征愚人阅读(41) 评论(0) 编辑收藏举报

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