springcloud全家桶个人博客系统（二）用户服务组件AdminProviderHystrix和文章服务组件ArticleProviderHystrix

港控/mmm° 2024-04-18 14:19 59阅读 0赞

# 一、简介 #

用户服务主要是提供用户注册、登陆等功能的接口。本组件基于hystrix的容灾处理。

文章服务组件主要提供文章增删改查功能接口。

## 本文以用户服务组件为例，文章服务组件与此组成大致类似，不在赘述。 ##

# 二、pom文件 #

<dependencies>
            <dependency>
                <groupId>com.sustly</groupId>
                <artifactId>blog_api</artifactId>
                <version>${project.version}</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-eureka</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-config</artifactId>
            </dependency>
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
            </dependency>
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
            </dependency>
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
            </dependency>
            <dependency>
                <groupId>ch.qos.logback</groupId>
                <artifactId>logback-core</artifactId>
            </dependency>
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>1.3.0</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-data-jpa</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-jetty</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
            </dependency>
            <dependency>
                <groupId>org.apache.shiro</groupId>
                <artifactId>shiro-core</artifactId>
                <version>1.2.3</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-hystrix</artifactId>
            </dependency>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <optional>true</optional>
            </dependency>
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>springloaded</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-devtools</artifactId>
            </dependency>
        </dependencies>
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <executions>
                        <execution>
                            <goals>
                                <goal>repackage</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <configuration>
                        <source>1.8</source>
                        <target>1.8</target>
                    </configuration>
                </plugin>
            </plugins>
        </build>

# 三、主配置类 #

@SpringBootApplication
    @EnableEurekaClient
    @EnableHystrix
    @MapperScan(basePackages = "com.systly.dao")
    public class BlogAdminProviderHystrix {
        public static void main(String[] args) {
            SpringApplication.run(BlogAdminProviderHystrix.class, args);
        }
    }

注意：要开启eureka客户端和hystrix

# 四、application.properties #

server.port=8001
    
    spring.application.name=blog-admin-provider-hystrix
    
    mybatis.configuration.map-underscore-to-camel-case=true
    
    spring.aop.auto=true
    spring.aop.proxy-target-class=true
    
    spring.datasource.username=root
    spring.datasource.password=123456
    spring.datasource.url=jdbc:mysql://localhost:3306/blog?useSSL=false
    spring.datasource.driver-class-name=com.mysql.jdbc.Driver
    spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
    
    eureka.client.service-url.defaultZone=http://localhost:7001/eureka/
    #服务名称
    eureka.instance.instance-id=blog-admin-provider-hystrix
    #显示地址
    eureka.instance.prefer-ip-address=true
    
    #在eureka中显示的名称
    info.app.name=blog-admin-provider-hystrix
    info.company.name=www.sustly.xyz
    info.build.artifactId=${project.artifactId}
    info.build.version=${project.version}

# 五、feign和hystrix容灾处理 #

### 5.1 feign ###

@FeignClient(value = "BLOG-ADMIN-PROVIDER-HYSTRIX", fallbackFactory=UserServiceClientFallBackFactory.class)
    public interface UserClientService {
    
        @PostMapping("/register")
        ResponseMsg register(@RequestBody User user);
        @PostMapping("/login")
        ResponseMsg login(@RequestBody User user);
    }

### 6.2 hystrix容灾 ###

@Component
    public class UserServiceClientFallBackFactory implements FallbackFactory<UserClientService> {
    
        @Override
        public UserClientService create(Throwable throwable) {
            return new UserClientService() {
                @Override
                public ResponseMsg register(User user) {
                    return ResponseMsg.onFail("该用户名已被占用！");
                }
    
                @Override
                public ResponseMsg login(User user) {
                    return ResponseMsg.onFail("用户不存在！");
                }
            };
        }
    }

# 六、本系统GitHub地址 #

[https://github.com/sustly/blog\_vue\_server][https_github.com_sustly_blog_vue_server]

注意：master分支才是springcloud版本

[https_github.com_sustly_blog_vue_server]: https://github.com/sustly/blog_vue_server