2
我有兩個不同的微服務，尤里卡作爲服務註冊中心，現在我正試圖從另一個微服務中調用終端，使用功能區解析端點以實現客戶端負載平衡。訪問內部微服務
服務A： 這暴露出一個端點，http://localhost:15000/api/user/ {用戶id}，和如下所述application.yml，
它調用服務A# Spring properties
spring:
application:
name: user_microservice
cloud:
config:
discovery:
enabled: false
# HTTP Server
server:
port: 15000 # HTTP (Tomcat) port
# Discovery Server Access
eureka:
client:
serviceUrl:
defaultZone: http://localhost:8761/eureka/
instance:
instanceId: ${spring.application.name}:${random.int}
metadataMap:
instanceId: ${spring.application.name}:${random.int}
logging:
level:
com.netflix.discovery: 'OFF'
org.springframework.cloud: 'DEBUG'
服務B， Application類
@EnableDiscoveryClient
@SpringBootApplication
public class UserSummaryApplication {
public static void main(String[] args) {
SpringApplication.run(UserSummaryApplication.class, args);
}
@Bean(name = "restTemplate")
RestTemplate restTemplate() {
return new RestTemplate();
}
@Bean(name = "loadBalancedRestTemplate")
@LoadBalanced
RestTemplate loadBalancedRestTemplate() {
return new RestTemplate();
}
}
Controller
@RestController
@RequestMapping("/api/usersummary")
public class UserSummaryController {
@Autowired
private UserSummaryService userSummaryService;
@RequestMapping(value="/{userId}", method= RequestMethod.GET)
@ResponseStatus(HttpStatus.OK)
public UserSummary getUserSummary(@PathVariable String userId){
return userSummaryService.getUserSummary(userId);
}
}
服務
@Service
public class UserSummaryService {
// Uses Ribbon to load balance requests
private RestTemplate loadBalancedRestTemplate;
public UserSummary getUserSummary(String UserId){
String url = String.format("http://%s%s","user_microservice","/api/user/{userId}");
logger.info(url);
try {
return this.loadBalancedRestTemplate.getForObject(url,
User.class, UserId).toString();
}catch (Exception e){
e.printStackTrace();
return null;
}
}
@Autowired
public void setLoadBalancedRestTemplate(RestTemplate loadBalancedRestTemplate) {
this.loadBalancedRestTemplate = loadBalancedRestTemplate;
}
}
但是g當我嘗試訪問服務時出現異常，如下所示：
java.lang.IllegalStateException: Request URI does not contain a valid hostname: http://user_microservice/api/user/599f877c8e365c0001cec8d1
usersummary_microservice_1 | at org.springframework.util.Assert.state(Assert.java:70)
usersummary_microservice_1 | at org.springframework.cloud.client.loadbalancer.LoadBalancerInterceptor.intercept(LoadBalancerInterceptor.java:54)
usersummary_microservice_1 | at org.springframework.http.client.InterceptingClientHttpRequest$InterceptingRequestExecution.execute(InterceptingClientHttpRequest.java:86)
usersummary_microservice_1 | at org.springframework.http.client.InterceptingClientHttpRequest.executeInternal(InterceptingClientHttpRequest.java:70)
usersummary_microservice_1 | at org.springframework.http.client.AbstractBufferingClientHttpRequest.executeInternal(AbstractBufferingClientHttpRequest.java:48)
usersummary_microservice_1 | at org.springframework.http.client.AbstractClientHttpRequest.execute(AbstractClientHttpRequest.java:53)
usersummary_microservice_1 | at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:652)
usersummary_microservice_1 | at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:613)
usersummary_microservice_1 | at org.springframework.web.client.RestTemplate.getForObject(RestTemplate.java:287)
usersummary_microservice_1 | at com.haulmatic.usersummary.service.userSummaryService.getuserSummary(UserSummaryService.java:33)
usersummary_microservice_1 | at com.haulmatic.usersummary.controller.userSummaryController.getuserSummary(UserSummaryController.java:29)
usersummary_microservice_1 | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
usersummary_microservice_1 | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
usersummary_microservice_1 | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
usersummary_microservice_1 | at java.lang.reflect.Method.invoke(Method.java:498)
usersummary_microservice_1 | at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
usersummary_microservice_1 | at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
usersummary_microservice_1 | at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
usersummary_microservice_1 | at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
usersummary_microservice_1 | at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
usersummary_microservice_1 | at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
usersummary_microservice_1 | at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
usersummary_microservice_1 | at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
usersummary_microservice_1 | at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
usersummary_microservice_1 | at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
usersummary_microservice_1 | at javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
usersummary_microservice_1 | at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
usersummary_microservice_1 | at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
usersummary_microservice_1 | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
usersummary_microservice_1 | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
usersummary_microservice_1 | at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
usersummary_microservice_1 | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
usersummary_microservice_1 | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
usersummary_microservice_1 | at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
usersummary_microservice_1 | at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
usersummary_microservice_1 | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
usersummary_microservice_1 | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
usersummary_microservice_1 | at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
usersummary_microservice_1 | at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
usersummary_microservice_1 | at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)
usersummary_microservice_1 | at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
usersummary_microservice_1 | at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)
usersummary_microservice_1 | at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
usersummary_microservice_1 | at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
usersummary_microservice_1 | at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799)
usersummary_microservice_1 | at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
usersummary_microservice_1 | at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
usersummary_microservice_1 | at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)
usersummary_microservice_1 | at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
usersummary_microservice_1 | at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
usersummary_microservice_1 | at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
usersummary_microservice_1 | at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
usersummary_microservice_1 | at java.lang.Thread.run(Thread.java:748)
有關這方面的任何指針？