• SpringCloud实战项目一（项目环境的搭建001）

    1.项目目录结构

    2.创建项目名称为springcloud-001

    pom.xml配置

    2. <project xmlns="http://maven.apache.org/POM/4.0.0"
    3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    5.   <modelVersion>4.0.0modelVersion>
    6.  
    7.   <parent>
    8.     <groupId>org.springframework.bootgroupId>
    9.     <artifactId>spring-boot-starter-parentartifactId>
    10.     <version>2.3.2.RELEASEversion>
    11.   parent>
    12.  
    13.   <groupId>com.xiaogroupId>
    14.   <artifactId>springcloud-001artifactId>
    15.   <version>1.0version>
    16.  
    17.   
    18.   <packaging>pompackaging>
    19.  
    20.   <properties>
    21.     <java.version>1.8java.version>
    22.     <spring-boot-version>2.3.2.RELEASEspring-boot-version>
    23.     <spring-cloud-version>2.2.6.RELEASEspring-cloud-version>
    24.     <spring-cloud-dependencies>2.2.6.RELEASEspring-cloud-dependencies>
    25.     <spring-cloud-nacos-version>2.2.6.RELEASEspring-cloud-nacos-version>
    26.     <spring-cloud-openfeign-version>2.2.6.RELEASEspring-cloud-openfeign-version>
    27.     <spring-cloud-gateway-version>2.2.6.RELEASEspring-cloud-gateway-version>
    28.     <ali-csp-version>1.8.1ali-csp-version>
    29.   properties>
    30.  
    31.   
    32.   <modules>
    33.     <module>springcloud-providermodule>
    34.     <module>springcloud-consumermodule>
    35.     <module>springcloud-gatewaymodule>
    36.     <module>springcloud-apimodule>
    37.   modules>
    38.  
    39.   
    40.   <dependencies>
    41.     
    42.     <dependency>
    43.       <groupId>com.alibaba.cloudgroupId>
    44.       <artifactId>spring-cloud-starter-alibaba-nacos-discoveryartifactId>
    45.     dependency>
    46.  
    47.     <dependency>
    48.       <groupId>org.projectlombokgroupId>
    49.       <artifactId>lombokartifactId>
    50.       <version>1.18.20version>
    51.       <scope>providedscope>
    52.     dependency>
    53.  
    54.   dependencies>
    55.  
    56.   
    57.   <dependencyManagement>
    58.     <dependencies>
    59.       <dependency>
    60.         <groupId>com.alibaba.cloudgroupId>
    61.         <artifactId>spring-cloud-alibaba-dependenciesartifactId>
    62.         <version>${spring-cloud-dependencies}version>
    63.         <type>pomtype>
    64.         <scope>importscope>
    65.       dependency>
    66.  
    67.       <dependency>
    68.         <groupId>com.alibaba.cloudgroupId>
    69.         <artifactId>spring-cloud-starter-alibaba-nacos-discoveryartifactId>
    70.         <version>${spring-cloud-nacos-version}version>
    71.       dependency>
    72.  
    73.       <dependency>
    74.         <groupId>org.springframework.cloudgroupId>
    75.         <artifactId>spring-cloud-starter-openfeignartifactId>
    76.         <version>${spring-cloud-openfeign-version}version>
    77.       dependency>
    78.  
    79.       <dependency>
    80.         <groupId>org.springframework.cloudgroupId>
    81.         <artifactId>spring-cloud-starter-gatewayartifactId>
    82.         <version>${spring-cloud-gateway-version}version>
    83.       dependency>
    84.  
    85.       <dependency>
    86.         <groupId>com.alibaba.cspgroupId>
    87.         <artifactId>sentinel-coreartifactId>
    88.         <version>${ali-csp-version}version>
    89.       dependency>
    90.       <dependency>
    91.         <groupId>com.alibaba.cspgroupId>
    92.         <artifactId>sentinel-transport-simple-httpartifactId>
    93.         <version>${ali-csp-version}version>
    94.       dependency>
    95.     dependencies>
    96.   dependencyManagement>
    97.  
    98.   <build>
    99.     <plugins>
    100.       <plugin>
    101.         <groupId>org.springframework.bootgroupId>
    102.         <artifactId>spring-boot-maven-pluginartifactId>
    103.         <configuration>
    104.           <skip>trueskip>
    105.         configuration>
    106.         <executions>
    107.           <execution>
    108.             <goals>
    109.               <goal>repackagegoal>
    110.             goals>
    111.           execution>
    112.         executions>
    113.       plugin>
    114.     plugins>
    115.   build>
    116. project>

     3.创建网关项目，springcloud-gateway

    pom.xml

    2. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    3.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    4.     <modelVersion>4.0.0modelVersion>
    5.     <parent>
    6.         <groupId>com.xiaogroupId>
    7.         <artifactId>springcloud-001artifactId>
    8.         <version>1.0version>
    9.         <relativePath>../pom.xmlrelativePath>
    10.     parent>
    11.     <groupId>com.xiaogroupId>
    12.     <artifactId>springcloud-gatewayartifactId>
    13.     <version>1.0version>
    14.  
    15.     <dependencies>
    16.         <dependency>
    17.             <groupId>org.springframework.cloudgroupId>
    18.             <artifactId>spring-cloud-starter-gatewayartifactId>
    19.         dependency>
    20.     dependencies>
    21. project>

    application.yml

    1. server:
    2.   port: 9001
    3. spring:
    4.   application:
    5.     name: springcloud-gateway
    6.   cloud:
    7.     nacos:
    8.       discovery:
    9.         server-addr: 192.168.64.19:8848
    10.     gateway:
    11.       routes:
    12.         - id: springcloud-consumer
    13.           uri: lb://springcloud-consumer
    14.           predicates:
    15.             - Path=/consumer/*

    4.创建提供项目，springcloud-provider

    pom.xml

    2. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    3.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    4.     <modelVersion>4.0.0modelVersion>
    5.     <parent>
    6.         <groupId>com.xiaogroupId>
    7.         <artifactId>springcloud-001artifactId>
    8.         <version>1.0version>
    9.         <relativePath>../pom.xmlrelativePath>
    10.     parent>
    11.     <groupId>com.xiaogroupId>
    12.     <artifactId>springcloud-providerartifactId>
    13.     <version>1.0version>
    14.  
    15.     <dependencies>
    16.         <dependency>
    17.             <groupId>org.springframework.bootgroupId>
    18.             <artifactId>spring-boot-starter-webartifactId>
    19.         dependency>
    20.     dependencies>
    21. project>

    application.yml

    1. server:
    2.   port: 9002
    3. spring:
    4.   application:
    5.     name: springcloud-provider
    6.   cloud:
    7.     nacos:
    8.       discovery:
    9.         server-addr: 192.168.64.19:8848
    MusicController.java
    1. package com.xiao.provider.controller;
    2.  
    3. import lombok.extern.slf4j.Slf4j;
    4. import org.springframework.web.bind.annotation.RequestMapping;
    5. import org.springframework.web.bind.annotation.RequestParam;
    6. import org.springframework.web.bind.annotation.RestController;
    7.  
    8. @RestController
    9. @Slf4j
    10. public class MusicController {
    11.  
    12.     @RequestMapping("/provider/musicplay")
    13.     public String musicPlay(@RequestParam String musicPath){
    14.         log.info("播放音乐文件[{}]", musicPath);
    15.         return musicPath;
    16.     }
    17. }

    5.创建api工程，springcloud-api

    pom.xml

    2. <project xmlns="http://maven.apache.org/POM/4.0.0"
    3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    5.     <parent>
    6.         <artifactId>springcloud-001artifactId>
    7.         <groupId>com.xiaogroupId>
    8.         <version>1.0version>
    9.     parent>
    10.     <modelVersion>4.0.0modelVersion>
    11.  
    12.     <groupId>com.xiaogroupId>
    13.     <artifactId>springcloud-apiartifactId>
    14.  
    15.     <dependencies>
    16.         <dependency>
    17.             <groupId>org.springframework.cloudgroupId>
    18.             <artifactId>spring-cloud-starter-openfeignartifactId>
    19.         dependency>
    20.     dependencies>
    21.  
    22. project>
    MusicClientFallbackFactory.java
    1. package com.xiao.api.feign.factory;
    2.  
    3. import com.xiao.api.feign.MusicServiceClient;
    4. import feign.hystrix.FallbackFactory;
    5. import lombok.extern.slf4j.Slf4j;
    6. import org.springframework.stereotype.Component;
    7.  
    8. /**
    9.  * 音乐服务降级处理
    10.  *
    11.  * @author xiaoss
    12.  * @since 1.0, 2022年07月27日 14:05:40
    13.  */
    14. @Slf4j
    15. @Component
    16. public class MusicClientFallbackFactory implements FallbackFactory<MusicServiceClient> {
    17.  
    18.     @Override
    19.     public MusicServiceClient create(Throwable e) {
    20.         log.error("音乐服务接口异常，原因：{}", e.getMessage(), e);
    21.         return new MusicServiceClient() {
    22.             @Override
    23.             public String musicPlay(String musicPath) {
    24.                  return "musicService服务器正在维护,请稍后再试！";
    25.             }
    26.         };
    27.     }
    28. }
    MusicServiceClient.java
    1. package com.xiao.api.feign;
    2.  
    3. import com.xiao.api.constant.CloudServiceDefinitions;
    4. import com.xiao.api.feign.factory.MusicClientFallbackFactory;
    5. import org.springframework.cloud.openfeign.FeignClient;
    6. import org.springframework.web.bind.annotation.GetMapping;
    7. import org.springframework.web.bind.annotation.RequestMapping;
    8. import org.springframework.web.bind.annotation.RequestParam;
    9.  
    10. /**
    11.  * 音乐服务接口客户端
    12.  *
    13.  * @author xiaoss
    14.  * @since 1.0, 2022年07月27日 14:08:01
    15.  */
    16. @FeignClient(contextId = "musicClient",name= CloudServiceDefinitions.PROVIDER_SERVICE,
    17.     fallbackFactory = MusicClientFallbackFactory.class)
    18. public interface MusicServiceClient {
    19.  
    20.     @GetMapping("/provider/musicplay")
    21.     String musicPlay(@RequestParam String musicPath);
    22. }

    6.创建服务消费工程，springcloud-consumer

    pom.xml

    2. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    3.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    4.     <modelVersion>4.0.0modelVersion>
    5.     <parent>
    6.         <groupId>com.xiaogroupId>
    7.         <artifactId>springcloud-001artifactId>
    8.         <version>1.0version>
    9.         <relativePath>../pom.xmlrelativePath>
    10.     parent>
    11.     <groupId>com.xiaogroupId>
    12.     <artifactId>springcloud-consumerartifactId>
    13.     <version>1.0version>
    14.  
    15.     <dependencies>
    16.  
    17.         <dependency>
    18.             <groupId>org.springframework.bootgroupId>
    19.             <artifactId>spring-boot-starter-webartifactId>
    20.         dependency>
    21.         <dependency>
    22.             <groupId>com.alibaba.cloudgroupId>
    23.             <artifactId>spring-cloud-starter-alibaba-sentinelartifactId>
    24.         dependency>
    25.         <dependency>
    26.             <groupId>com.alibaba.cspgroupId>
    27.             <artifactId>sentinel-coreartifactId>
    28.         dependency>
    29.         <dependency>
    30.             <groupId>com.alibaba.cspgroupId>
    31.             <artifactId>sentinel-transport-simple-httpartifactId>
    32.         dependency>
    33.         <dependency>
    34.             <groupId>com.alibaba.cspgroupId>
    35.             <artifactId>sentinel-web-servletartifactId>
    36.         dependency>
    37.         <dependency>
    38.             <groupId>com.xiaogroupId>
    39.             <artifactId>springcloud-apiartifactId>
    40.             <version>1.0version>
    41.             <scope>compilescope>
    42.         dependency>
    43.  
    44.  
    45.  
    46.     dependencies>
    47. project>

    application.yml

    1. server:
    2.   port: 9003
    3. spring:
    4.   application:
    5.     name: springcloud-consumer
    6.   cloud:
    7.     nacos:
    8.       discovery:
    9.         server-addr: 192.168.64.19:8848
    10.     sentinel:
    11.       transport:
    12.         port: 8719
    13.         dashboard: 192.168.233.130:9090
    14.   main:
    15.     allow-bean-definition-overriding: true
    16. feign:
    17.   sentinel:
    18.     enabled: true
    PlayerController.java
    1. package com.xiao.consumer.controller;
    2.  
    3. import com.xiao.api.feign.MusicServiceClient;
    4. import com.xiao.api.feign.VideoServiceClient;
    5. import lombok.extern.slf4j.Slf4j;
    6. import org.springframework.web.bind.annotation.GetMapping;
    7. import org.springframework.web.bind.annotation.RequestMapping;
    8. import org.springframework.web.bind.annotation.RequestParam;
    9. import org.springframework.web.bind.annotation.RestController;
    10. import javax.annotation.Resource;
    11.  
    12. @RestController
    13. @Slf4j
    14. public class PlayerController {
    15.     @Resource
    16.     private MusicServiceClient musicServiceClient;
    17.  
    18.     @Resource
    19.     private VideoServiceClient videoServiceClient;
    20.  
    21.     @RequestMapping("/consumer/musicplay")
    22.     public String musicplay(@RequestParam String musicPath){
    23.         log.info("musicplay 调用！");
    24.         return musicServiceClient.musicPlay(musicPath);
    25.     }
    26.  
    27.     @RequestMapping("/consumer/videoplay")
    28.     public String videoplay(@RequestParam String videoPath){
    29.         log.info("videoplay 调用！");
    30.         return videoServiceClient.videoPlay(videoPath);
    31.     }
    32.  
    33.     @GetMapping("hello")
    34.     public String hello(){
    35.         return "hello";
    36.     }
    37. }

    7.测试

    分别启动服务gateway、provider、consumer

    使用postMan测试接口：

    http://localhost:9001/consumer/musicplay?musicPath=1

    源码下载地址：

    链接：https://pan.baidu.com/s/1717J8lOKNRqq-S7aTYOw_g 
    提取码：ez84

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  • 原文地址：https://blog.csdn.net/xiao297328/article/details/126039973