• 架构的搭建(一)


    一、简介

    这次项目是准备做一个电商项目,采用当前主流的微服务技术,技术栈是SpringCloud Alibaba,此次设计思路也很简单,当前端服务请求过来时先经过四层负载LVS,用过LVS的朋友应该知道LVS的并发量相对来说还是比较高的,可以达到400W左右;经过LVS后,LVS会把服务请求发送给七层负载Nginx集群服务,Nginx在后面文章也有说明,可以加载静态资源什么的,Nginx的抗压能力也是非常高的,记得他并发量好像是可以达到5到6W左右吧。Nginx收到请求后会把请求路由到后端服务Gatway网关路由,网关虽然是做分发服务的,但其实在网关这层可以做的东西是很多的,比喻:鉴权、限流、负载分发、拦截....;经过网关后,服务请求就会路由到具体的业务服务代码;这就是整体的大体设计;

    二、项目搭建

     spring-cloud-api:存放所有与数据库对应的实体类,以及远程调用的feign接口

    spring-cloud-goods-api:与spring-cloud-server对应的API工程

    spring-cloud-gateway:所有的微服务网关工程,存放不同服务的微服务网关或者微服务网关集群

    spring-cloud-service:所有微服务的业务模块工程

    spring-cloud-util:所有工具工程,这里面又可以拆分两块,一块是微服务依赖包;另一块是普通工具包

    spring-cloud-web:所有页面操作的工程

    2.1、父工程搭建

    spring-cloud-alibaba的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>
        <groupId>com.ghy</groupId>
        <artifactId>spring-cloud-alibaba</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <name>spring-cloud-alibaba</name>
        <packaging>pom</packaging>
        <description>Demo project for Spring Boot</description>
    
        <properties>
            <java.version>1.8</java.version>
            <spring-cloud-alibaba.version>2.2.1.RELEASE</spring-cloud-alibaba.version>
        </properties>
    
        <modules>
            <module>spring-cloud-api</module>
            <module>spring-cloud-gateway</module>
            <module>spring-cloud-util</module>
            <module>spring-cloud-web</module>
            <module>spring-cloud-service</module>
        </modules>
    
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.2.10.RELEASE</version>
            <relativePath/> <!-- lookup parent from repository -->
        </parent>
    
        <dependencies>
            <!--lombok,方便创建javaBean的一些方法-->
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <optional>true</optional>
            </dependency>
            <!--测试-->
            <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>
            <!--热部署插件-->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-devtools</artifactId>
                <scope>runtime</scope>
                <optional>true</optional>
            </dependency>
        </dependencies>
    
        <dependencyManagement>
            <dependencies>
                <dependency>
                    <groupId>com.alibaba.cloud</groupId>
                    <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                    <version>${spring-cloud-alibaba.version}</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
            </dependencies>
        </dependencyManagement>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.8.1</version>
                    <configuration>
                        <source>1.8</source>
                        <target>1.8</target>
                        <encoding>UTF-8</encoding>
                    </configuration>
                </plugin>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <version>2.3.7.RELEASE</version>
                    <configuration>
                        <mainClass>com.ghy.spring_cloud_alibaba.SpringCloudAlibabaApplication</mainClass>
                    </configuration>
                    <executions>
                        <execution>
                            <id>repackage</id>
                            <goals>
                                <goal>repackage</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
            </plugins>
        </build>
    
    </project>

    spring-cloud-api的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">
    
       <parent>
           <groupId>com.ghy</groupId>
           <artifactId>spring-cloud-alibaba</artifactId>
           <version>0.0.1-SNAPSHOT</version>
       </parent>
    
        <modelVersion>4.0.0</modelVersion>
        <packaging>pom</packaging>
        <modules>
            <module>spring-cloud-goods-api</module>
        </modules>
    
        <artifactId>spring-cloud-api</artifactId>
        <description>所有数据库表对应的Bean和Feign接口</description>
    
    
    
        <dependencies>
            <!--MyBatis Plus-->
            <!--编写JavaBean会用到MyBatis Plus的相关注解,引入依赖防止程序编译
    不通过-->
            <dependency>
                <groupId>com.baomidou</groupId>
                <artifactId>mybatis-plus-boot-starter</artifactId>
                <version>3.3.2</version>
                <scope>provided</scope>
            </dependency>
        </dependencies>
    
    
    </project>

    spring-cloud-gateway的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">
    
        <parent>
            <groupId>com.ghy</groupId>
            <artifactId>spring-cloud-alibaba</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </parent>
    
        <modelVersion>4.0.0</modelVersion>
        <groupId>com.ghy</groupId>
        <artifactId>spring-cloud-gateway</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <name>spring-cloud-gateway</name>
        <description>这个是微服务的网关</description>
    
        <properties>
            <java.version>1.8</java.version>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
            <spring-boot.version>2.3.7.RELEASE</spring-boot.version>
        </properties>
    
        <dependencies>
    
        </dependencies>
    
        <dependencyManagement>
            <dependencies>
                <dependency>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-dependencies</artifactId>
                    <version>${spring-boot.version}</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
            </dependencies>
        </dependencyManagement>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.8.1</version>
                    <configuration>
                        <source>1.8</source>
                        <target>1.8</target>
                        <encoding>UTF-8</encoding>
                    </configuration>
                </plugin>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <version>2.3.7.RELEASE</version>
                    <configuration>
                        <mainClass>com.ghy.springcloudgateway.SpringCloudGatewayApplication</mainClass>
                    </configuration>
                    <executions>
                        <execution>
                            <id>repackage</id>
                            <goals>
                                <goal>repackage</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
            </plugins>
        </build>
    
    </project>

    spring-cloud-service的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">
        <parent>
            <groupId>com.ghy</groupId>
            <artifactId>spring-cloud-alibaba</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </parent>
    
    
        <modelVersion>4.0.0</modelVersion>
        <packaging>pom</packaging>
    
        <modules>
            <module>spring-cloud-goods-service</module>
        </modules>
    
        <artifactId>spring-cloud-service</artifactId>
        <description>所有业务类代码的父工程</description>
    
    
    
        <dependencies>
            <!--jar包依赖-->
            <dependency>
                <artifactId>spring-cloud-common</artifactId>
                <groupId>com.ghy</groupId>
                <version>0.0.1-SNAPSHOT</version>
            </dependency>
            <!--工具包依赖-->
            <dependency>
                <artifactId>spring-cloud-service-dependency</artifactId>
                <groupId>com.ghy</groupId>
                <version>0.0.1-SNAPSHOT</version>
            </dependency>
        </dependencies>
    
    </project>

    spring-cloud-util的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>spring-cloud-alibaba</artifactId>
            <groupId>com.ghy</groupId>
            <version>0.0.1-SNAPSHOT</version>
        </parent>
        <modelVersion>4.0.0</modelVersion>
        <packaging>pom</packaging>
        <artifactId>spring-cloud-util</artifactId>
        <description>
            所有工具工程管理
        </description>
    
        <name>spring-cloud-util</name>
        <!-- FIXME change it to the project's website -->
        <url>http://www.example.com</url>
        <modules>
            <module>spring-cloud-common</module>
            <module>spring-cloud-service-dependency</module>
        </modules>
    
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <maven.compiler.source>1.7</maven.compiler.source>
            <maven.compiler.target>1.7</maven.compiler.target>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.11</version>
                <scope>test</scope>
            </dependency>
        </dependencies>
    
    
    </project>

    spring-cloud-web的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">
    
        <parent>
            <artifactId>spring-cloud-alibaba</artifactId>
            <groupId>com.ghy</groupId>
            <version>0.0.1-SNAPSHOT</version>
        </parent>
    
        <modelVersion>4.0.0</modelVersion>
        <packaging>pom</packaging>
        <artifactId>spring-cloud-web</artifactId>
        <description>管理涉及到页面渲染的工程</description>
    
        <properties>
            <java.version>1.8</java.version>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
            <spring-boot.version>2.3.7.RELEASE</spring-boot.version>
        </properties>
    
        <dependencies>
    
        </dependencies>
    
    
    
    
    
    </project>

    2.2、公共工程创建

    spring-cloud-service-dependency是所有server微服务可能要用到的工具包,spring-cloud-service-dependency的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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <parent>
            <artifactId>spring-cloud-util</artifactId>
            <groupId>com.ghy</groupId>
            <version>0.0.1-SNAPSHOT</version>
        </parent>
        <modelVersion>4.0.0</modelVersion>
        <artifactId>spring-cloud-service-dependency</artifactId>
        <description>
            所有微服务工程公共依赖包、所有微服务工程公共配置类
        </description>
    
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <maven.compiler.source>1.7</maven.compiler.source>
            <maven.compiler.target>1.7</maven.compiler.target>
        </properties>
    
        <dependencies>
            <!--web包-->
            <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>
                <version>3.3.2</version>
            </dependency>
    
            <!--MySQL-->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <scope>runtime</scope>
            </dependency>
    
            <!--Redis-->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-data-redis</artifactId>
            </dependency>
    
            <!--Nacos-->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
            </dependency>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            </dependency>
        </dependencies>
    
    
    </project>

    在spring-cloud-service-dependency工程中建立一个分页拦截器StartConfig类

    @Configuration
    public class StartConfig {
    
        /****
         * 分页拦截器
         */
        @Bean
        public PaginationInterceptor paginationInterceptor(){
            PaginationInterceptor pageInterceptor = new PaginationInterceptor();
            // 设置数据类型
            pageInterceptor.setDbType(DbType.MYSQL);
            return pageInterceptor;
        }
    }

     spring-cloud-common是所有应用的基础包,它的pom.xml文件如下

    <?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>spring-cloud-util</artifactId>
            <groupId>com.ghy</groupId>
            <version>0.0.1-SNAPSHOT</version>
        </parent>
        <modelVersion>4.0.0</modelVersion>
        <artifactId>spring-cloud-common</artifactId>
        <!-- FIXME change it to the project's website -->
        <url>http://www.example.com</url>
        <description>
            工具工程
        </description>
    
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <maven.compiler.source>1.7</maven.compiler.source>
            <maven.compiler.target>1.7</maven.compiler.target>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.11</version>
                <scope>test</scope>
            </dependency>
        </dependencies>
    
    </project>

    在此工程中建立一个错误码类RespCode类

    public enum RespCode {
        SUCCESS(20000, "操作成功"),
        ERROR(50000, "操作失败"),
        SYSTEM_ERROR(50001, "系统错误");
    
        private Integer code;
        private String message;
    
        RespCode(Integer code, String message) {
            this.code = code;
            this.message = message;
        }
        RespCode() {
        }
        public Integer getCode() {
            return code;
        }
    
        public void setCode(Integer code) {
            this.code = code;
        }
    
        public String getMessage() {
            return message;
        }
    
        public void setMessage(String message) {
            this.message = message;
        }
    }
    RespResult类
    public class RespResult<T> implements Serializable {
    
        //响应数据结果集
        private T data;
    
        /**
         * 状态码
         * 20000 操作成功
         * 50000 操作失败
         */
        private Integer code;
    
        /***S
         * 响应信息
         */
        private String message;
    
        public RespResult() {
        }
    
        public RespResult(RespCode resultCode) {
            this.code = resultCode.getCode();
            this.message = resultCode.getMessage();
        }
    
        public RespResult(T data, RespCode resultCode) {
            this.data = data;
            this.code = resultCode.getCode();
            this.message = resultCode.getMessage();
        }
        public static RespResult ok() {
            return new RespResult(null, RespCode.SUCCESS);
        }
    
        public static RespResult ok(Object data) {
            return new RespResult(data, RespCode.SUCCESS);
        }
    
        public static RespResult error() {
            return new RespResult(null, RespCode.ERROR);
        }
    
        public static RespResult error(String message) {
            return secByError(RespCode.ERROR.getCode(),message);
        }
    
        //自定义异常
        public static RespResult secByError(Integer code,String message) {
            RespResult err = new RespResult();
            err.setCode(code);
            err.setMessage(message);
            return err;
        }
    
        public static RespResult error(RespCode resultCode) {
            return new RespResult(resultCode);
        }
    
        public T getData() {
            return data;
        }
    
        public void setData(T data) {
            this.data = data;
        }
    
        public Integer getCode() {
            return code;
        }
    
        public void setCode(Integer code) {
            this.code = code;
        }
    
        public String getMessage() {
            return message;
        }
    
        public void setMessage(String message) {
            this.message = message;
        }
    }

    3、品牌管理工能的创建

    品牌表的数据库设计如下:
    CREATE TABLE `brand` ( 
    `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '品牌id',
    `name` varchar(100) NOT NULL COMMENT '品牌名称',
    `image` varchar(1000) DEFAULT '' COMMENT '品牌图片地址',
    `initial` varchar(1) DEFAULT '' COMMENT '品牌的首字母',
    `sort` int(11) DEFAULT NULL COMMENT '排序',
    PRIMARY KEY (`id`) )
    ENGINE=InnoDB AUTO_INCREMENT=325475 DEFAULT CHARSET=utf8 COMMENT='品牌表';

    商品表设计完后,就是要写品牌的工程及创建他的实体类,下面创建spring-cloud-goods-api工程,他的pom.xml文件如下

    <?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>spring-cloud-api</artifactId>
            <groupId>com.ghy</groupId>
            <version>0.0.1-SNAPSHOT</version>
        </parent>
    
        <modelVersion>4.0.0</modelVersion>
        <artifactId>spring-cloud-goods-api</artifactId>
        <description>
            spring-cloud-goods对应的Api工程
        </description>
    
    </project>

    然后创建他的实体类

    @Data
    @NoArgsConstructor
    @AllArgsConstructor
    @TableName(value = "brand")
    public class Brand {
    
        // ID(主键)  @TableId:标记当前属性为主键列对应的属性
        @TableId(type = IdType.AUTO)
        private Integer id;
        // 品牌名字
        private String name;
        // 品牌图片
        private String image;
        // 品牌首字母
        private String initial;
        // 排序
        private Integer sort;
    }

    然后上创建他的业务工程spring-cloud-goods-service工程,他的pom.xml文件如下

    <?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">
    
        <parent>
            <groupId>com.ghy</groupId>
            <artifactId>spring-cloud-service</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </parent>
        <modelVersion>4.0.0</modelVersion>
        <artifactId>spring-cloud-goods-service</artifactId>
        <description>
            数据库的增删改查
        </description>
    
        <dependencies>
            <!--goods-api-->
            <dependency>
                <groupId>com.ghy</groupId>
                <artifactId>spring-cloud-goods-api</artifactId>
                <version>0.0.1-SNAPSHOT</version>
            </dependency>
        </dependencies>
    </project>

    yml文件

    server:
      port: 8081
    spring:
      application:
        name: spring-cloud-goods-service
      datasource:
        driver-class-name: com.mysql.cj.jdbc.Driver
        url: jdbc:mysql://192.168.32.32:3306/shop_goods?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC
        username: root
        password: root
      cloud:
        nacos:
          config:
            file-extension: yaml
            server-addr: 192.168.32.32:8848
          discovery:
            #Nacos的注册地址
            server-addr: 192.168.32.32:8848
    # ====================MybatisPlus====================
    mybatis-plus:
      mapper-locations: mapper/*.xml
      type-aliases-package: com.ghy.springcloudgoodsapi.*.entity
      configuration:
        map-underscore-to-camel-case: true  #驼峰转换
        log-impl: org.apache.ibatis.logging.stdout.StdOutImpl   #日志查看
    
    #日志配置
    logging:
      pattern:
        console: "%msg%n"
    BrandMapper类
    public interface BrandMapper extends BaseMapper<Brand> {
    }
    public interface BrandService extends IService<Brand> {
    
        /****
         * 条件查询
         * return List<Brand>
         */
        List<Brand> queryList(Brand brand);
    
        /****
         * 条件分页查询
         * return Page<Brand>
         */
        Page<Brand> queryPageList(Brand brand, Long currentPage, Long size);
    
    }
        /****
         * 条件查询
         * return List<Brand>
         */
        @Override
        public List<Brand> queryList(Brand brand) {
            //条件包装对象
            QueryWrapper<Brand> queryWrapper = new QueryWrapper<Brand>();
            //根据name查询品牌
            queryWrapper.like("name",brand.getName());
    
            //根据initial查询
            queryWrapper.eq("initial",brand.getInitial());
            return brandMapper.selectList(queryWrapper);
        }
    
        /****
         * 条件分页查询
         * return Page<Brand>
         */
        @Override
        public Page<Brand> queryPageList(Brand brand, Long currentPage, Long size) {
            //条件包装对象
            QueryWrapper<Brand> queryWrapper = new QueryWrapper<Brand>();
            //根据name查询品牌
            queryWrapper.like("name",brand.getName());
            return brandMapper.selectPage(new Page<Brand>(currentPage,size),queryWrapper);
        }
    }
    @RestController
    @RequestMapping(value = "/brand")
    public class BrandController {
    
        @Autowired
        private BrandService brandService;
    
        /****
         * 增加方法
         */
        @PostMapping
        public RespResult add(@RequestBody Brand brand){
            brandService.save(brand);
            return RespResult.ok();
        }
    
        /****
         * 修改方法
         */
        @PutMapping
        public RespResult update(@RequestBody Brand brand){
            brandService.updateById(brand);
            return RespResult.ok();
        }
    
        /****
         * 删除方法
         */
        @DeleteMapping("/{id}")
        public RespResult delete(@PathVariable(value = "id")String id){
            brandService.removeById(id);
            return RespResult.ok();
        }
    
        /****
         * 条件查询
         */
        @PostMapping(value = "/search")
        public RespResult<List<Brand>> queryList(@RequestBody Brand brand){
            List<Brand> brands = brandService.queryList(brand);
            return RespResult.ok(brands);
        }
    
        /****
         * 条件查询
         */
        @PostMapping(value = "/search/{page}/{size}")
        public RespResult<Page<Brand>> queryPageList(
                @PathVariable(value = "page")Long page,
                @PathVariable(value = "size")Long size,
                @RequestBody Brand brand){
            Page<Brand> pageInfo = brandService.queryPageList(brand,page,size);
            return RespResult.ok(pageInfo);
        }
    }

    这样工程就创建完成了

     

     

     git源码地址:https://gitee.com/TongHuaShuShuoWoDeJieJu/spring-cloud-alibaba.git

    这短短的一生我们最终都会失去,不妨大胆一点,爱一个人,攀一座山,追一个梦
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  • 原文地址:https://www.cnblogs.com/xing1/p/14967560.html
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