SpringCloud之Zuul网关路由

创建zuul-server服务 pom

<parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.2.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-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-test</artifactId> <scope>test</scope> </dependency> </dependencies> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>Dalston.RC1</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> <repositories> <repository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>https://repo.spring.io/milestone</url> <snapshots> <enabled>false</enabled> </snapshots> </repository> </repositories>

启动类

@EnableEurekaClient @EnableZuulProxy @SpringBootApplication public class ZuulServer { public static void main(String[] args) { SpringApplication.run(ZuulServer.class, args); } }

yml

eureka: client: serviceUrl: defaultZone: http://localhost:8761/eureka/ server: port: 8766 spring: application: name: zuul-server zuul: routes: say-hello-service: path: /say-hello-service/** serviceId: say-hello-service greeting-service: path: /greeting-service/** serviceId: greeting-service

此时，访问zuul的8766接口，后面接上面定义的两个服务的名称，再接requestMapping路径，即可路由到对应服务。

写zuul过滤器

@Component public class UserLoginFilter extends ZuulFilter { private static Logger logger = LoggerFactory.getLogger(UserLoginFilter.class); @Override public String filterType() { return "pre"; } @Override public int filterOrder() { return 0; } @Override public boolean shouldFilter() { return true; } @Override public Object run() { RequestContext ctx = RequestContext.getCurrentContext(); HttpServletRequest request = ctx.getRequest(); // 打印请求方法 请求路径 logger.info(String.format("%s >>> %s", request.getMethod(), request.getRequestURL().toString())); Object userId = request.getParameter("userId"); if(userId == null) { // userID为空，则由zuul返回401无权访问 logger.warn("userId is empty"); ctx.setSendZuulResponse(false); ctx.setResponseStatusCode(401); try { ctx.getResponse().getWriter().write("userId is empty"); }catch (Exception e){ logger.error("send response error: " + e); } return null; } // 否则就能正常登陆 logger.info("ok"); return null; } }

则请求传入userId，才能通过，否则被zuul拦截呦