SpringCloud-Finchley系列08-服务网关zuul搭建

• 创建项目
• 配置文件
• 启动类
• 过滤器
• pom文件
• 验证

一.创建项目

选取zuul作为服务网关组件

创建maven项目flow-zuul(8731)作为子模块

二.配置文件

application-zuul-dev.yml, 内容如下:

# dev_config
spring:
  application:
    name: zuul

server:
  port: 8731

eureka:
  instance:
    lease-renewal-interval-in-seconds: 5
    lease-expiration-duration-in-seconds: 10
  client:
    service-url:
      # 单个配置
#      defaultZone: http://localhost:8761/eureka/
      # 集群配置
      defaultZone: http://127.0.0.1:8761/eureka/, http://127.0.0.1:8762/eureka/

# zuul_config
zuul:
  routes:
    ribbon:
      path: /ribbon/**
      serviceId: eureka-consumer-ribbon
    feign:
      path: /feign/**
      serviceId: eureka-consumer-feign

management:
  endpoints:
    web:
      exposure:
        include: "*"
      cors:
        allowed-origins: "*"
        allowed-methods: "*"

info:
  company.name: org.flowframework
  app.name: zuul
  app.desc: springcloud-zuul
  author: robin

           

三.启动类

Application.java

@EnableEurekaClient
@EnableDiscoveryClient
@EnableZuulProxy
@SpringBootApplication
public class Application extends SpringBootServletInitializer {

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        return builder.sources(Application.class);
    }

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}
           

四.过滤器

FilterConfig.java

@Component
public class FilterConfig extends ZuulFilter {

    private static Logger logger = LoggerFactory.getLogger(FilterConfig.class);

    @Override
    public String filterType() {
        return "pre";
    }

    @Override
    public int filterOrder() {
        return 0;
    }

    @Override
    public boolean shouldFilter() {
        return true;
    }

    @Override
    public Object run() throws ZuulException {
        RequestContext ctx = RequestContext.getCurrentContext();
        HttpServletRequest request = ctx.getRequest();
        logger.info(String.format("方法: %s, 地址: %s", request.getMethod(), request.getRequestURL().toString()));
        Object accessToken = request.getParameter("token");
        if(null == accessToken) {
            logger.error("token is empty");
            ctx.setSendZuulResponse(false);
            ctx.setResponseStatusCode(401);
            try {
                ctx.getResponse().getWriter().write("token is empty");
            }catch (IOException e) {
                e.printStackTrace();
            }
        }else {
            logger.info("token: " + accessToken);
        }
        return null;
    }
}
           

五.pom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">

    <modelVersion>4.0.0</modelVersion>

    <groupId>org.flowframework</groupId>
    <artifactId>flow-zuul</artifactId>
    <version>1.0.0-SNAPSHOT</version>
    <packaging>jar</packaging>

    <parent>
        <groupId>org.flowframework</groupId>
        <artifactId>springcloud</artifactId>
        <version>1.0.0-SNAPSHOT</version>
    </parent>

    <dependencies>
        <!-- eureka-client -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>

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

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
            <scope>true</scope>
        </dependency>
    </dependencies>

    <build>
        <finalName>flow-zuul</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <configuration>
                    <skip>true</skip>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <fork>true</fork>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>
           

六.验证

http://localhost:8731/ribbon/hello/robin

token is empty

http://localhost:8731/ribbon/hello/robin?token=1

Hello robin, service: provider01, response port: 8781

http://localhost:8731/feign/hello/feign/robin?token=1

Hello robin, service: provider02, response port: 8782

http://localhost:8761/