Hystrix not showing dashboard - spring-boot

This is how my pom.xml looks like
<?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">
<parent>
<artifactId>SalaryBox</artifactId>
<groupId>org.example</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<groupId>com.salary.box</groupId>
<artifactId>greeting-service</artifactId>
<packaging>war</packaging>
<properties>
<spring-cloud.version>Hoxton.SR5</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-hystrix-dashboard</artifactId>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</repository>
</repositories>
</project>
This is how my main class looks like
#SpringBootApplication
#EnableDiscoveryClient
#EnableFeignClients
#EnableCircuitBreaker
#EnableHystrixDashboard
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
This is how my application properties looks like
spring.application.name=greetings-service
service.message-service.id=messages-service
management.endpoints.web.exposure.include=*
This is how my controller looks like
#RestController
public class GreetingController {
#Autowired
public GreetingsService greetingsService;
#HystrixCommand(fallbackMethod = "defaultMessage")
#RequestMapping("/greeting/{id}")
public Greeting findMyGreetingMessage(#PathVariable Long id) {
Greeting greeting = new Greeting();
greeting.setMessage(greetingsService.getMessage(id));
return greeting;
}
public Greeting defaultMessage(Long id){
Greeting greeting = new Greeting();
greeting.setMessage("Message service seems to be broken");
return greeting;
}
}
When I check the URL http://localhost:8082/actuator/hystrix.stream the stream seems to be generated as follows
data: {"type":"HystrixCommand","name":"findMyGreetingMessage","group":"GreetingController","currentTime":1591920892870,"isCircuitBreakerOpen":false,"errorPercentage":0,"errorCount":0,"requestCount":0,"rollingCountBadRequests":0,"rollingCountCollapsedRequests":0,"rollingCountEmit":0,"rollingCountExceptionsThrown":0,"rollingCountFailure":0,"rollingCountFallbackEmit":0,"rollingCountFallbackFailure":0,"rollingCountFallbackMissing":0,"rollingCountFallbackRejection":0,"rollingCountFallbackSuccess":0,"rollingCountResponsesFromCache":0,"rollingCountSemaphoreRejected":0,"rollingCountShortCircuited":0,"rollingCountSuccess":0,"rollingCountThreadPoolRejected":0,"rollingCountTimeout":0,"currentConcurrentExecutionCount":0,"rollingMaxConcurrentExecutionCount":0,"latencyExecute_mean":0,"latencyExecute":{"0":0,"25":0,"50":0,"75":0,"90":0,"95":0,"99":0,"99.5":0,"100":0},"latencyTotal_mean":0,"latencyTotal":{"0":0,"25":0,"50":0,"75":0,"90":0,"95":0,"99":0,"99.5":0,"100":0},"propertyValue_circuitBreakerRequestVolumeThreshold":20,"propertyValue_circuitBreakerSleepWindowInMilliseconds":5000,"propertyValue_circuitBreakerErrorThresholdPercentage":50,"propertyValue_circuitBreakerForceOpen":false,"propertyValue_circuitBreakerForceClosed":false,"propertyValue_circuitBreakerEnabled":true,"propertyValue_executionIsolationStrategy":"THREAD","propertyValue_executionIsolationThreadTimeoutInMilliseconds":1000,"propertyValue_executionTimeoutInMilliseconds":1000,"propertyValue_executionIsolationThreadInterruptOnTimeout":true,"propertyValue_executionIsolationThreadPoolKeyOverride":null,"propertyValue_executionIsolationSemaphoreMaxConcurrentRequests":10,"propertyValue_fallbackIsolationSemaphoreMaxConcurrentRequests":10,"propertyValue_metricsRollingStatisticalWindowInMilliseconds":10000,"propertyValue_requestCacheEnabled":true,"propertyValue_requestLogEnabled":true,"reportingHosts":1,"threadPool":"GreetingController"}
data: {"type":"HystrixThreadPool","name":"GreetingController","currentTime":1591920892870,"currentActiveCount":0,"currentCompletedTaskCount":2,"currentCorePoolSize":10,"currentLargestPoolSize":2,"currentMaximumPoolSize":10,"currentPoolSize":2,"currentQueueSize":0,"currentTaskCount":2,"rollingCountThreadsExecuted":0,"rollingMaxActiveThreads":0,"rollingCountCommandRejections":0,"propertyValue_queueSizeRejectionThreshold":5,"propertyValue_metricsRollingStatisticalWindowInMilliseconds":10000,"reportingHosts":1}
ping:
data: {"type":"HystrixCommand","name":"findMyGreetingMessage","group":"GreetingController","currentTime":1591920893373,"isCircuitBreakerOpen":false,"errorPercentage":0,"errorCount":0,"requestCount":0,"rollingCountBadRequests":0,"rollingCountCollapsedRequests":0,"rollingCountEmit":0,"rollingCountExceptionsThrown":0,"rollingCountFailure":0,"rollingCountFallbackEmit":0,"rollingCountFallbackFailure":0,"rollingCountFallbackMissing":0,"rollingCountFallbackRejection":0,"rollingCountFallbackSuccess":0,"rollingCountResponsesFromCache":0,"rollingCountSemaphoreRejected":0,"rollingCountShortCircuited":0,"rollingCountSuccess":0,"rollingCountThreadPoolRejected":0,"rollingCountTimeout":0,"currentConcurrentExecutionCount":0,"rollingMaxConcurrentExecutionCount":0,"latencyExecute_mean":0,"latencyExecute":{"0":0,"25":0,"50":0,"75":0,"90":0,"95":0,"99":0,"99.5":0,"100":0},"latencyTotal_mean":0,"latencyTotal":{"0":0,"25":0,"50":0,"75":0,"90":0,"95":0,"99":0,"99.5":0,"100":0},"propertyValue_circuitBreakerRequestVolumeThreshold":20,"propertyValue_circuitBreakerSleepWindowInMilliseconds":5000,"propertyValue_circuitBreakerErrorThresholdPercentage":50,"propertyValue_circuitBreakerForceOpen":false,"propertyValue_circuitBreakerForceClosed":false,"propertyValue_circuitBreakerEnabled":true,"propertyValue_executionIsolationStrategy":"THREAD","propertyValue_executionIsolationThreadTimeoutInMilliseconds":1000,"propertyValue_executionTimeoutInMilliseconds":1000,"propertyValue_executionIsolationThreadInterruptOnTimeout":true,"propertyValue_executionIsolationThreadPoolKeyOverride":null,"propertyValue_executionIsolationSemaphoreMaxConcurrentRequests":10,"propertyValue_fallbackIsolationSemaphoreMaxConcurrentRequests":10,"propertyValue_metricsRollingStatisticalWindowInMilliseconds":10000,"propertyValue_requestCacheEnabled":true,"propertyValue_requestLogEnabled":true,"reportingHosts":1,"threadPool":"GreetingController"}
data: {"type":"HystrixThreadPool","name":"GreetingController","currentTime":1591920893373,"currentActiveCount":0,"currentCompletedTaskCount":2,"currentCorePoolSize":10,"currentLargestPoolSize":2,"currentMaximumPoolSize":10,"currentPoolSize":2,"currentQueueSize":0,"currentTaskCount":2,"rollingCountThreadsExecuted":0,"rollingMaxActiveThreads":0,"rollingCountCommandRejections":0,"propertyValue_queueSizeRejectionThreshold":5,"propertyValue_metricsRollingStatisticalWindowInMilliseconds":10000,"reportingHosts":1}
ping:
But the dashboard seems to be stuck at this point even after refreshing it so many times and trying to hit the url so many times.
What am I missing here?

Try adding proxyStreamAllowList, add this in application.properties -
hystrix.dashboard.proxyStreamAllowList = "*"
this thread looks similar - Unable to connect to Command Metric Stream. in Hystrix Dashboard issue

Related

error while reloading spring properties with #RefreshScope in spring cloud

I'm testing one prototype for spring-cloud using #RefreshScope annotation. I'm using one external property file for that. Which I have provided and configured in runtime argument.
pom.xml dependency
<?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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.1.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<groupId>com.proto.reload</groupId>
<artifactId>CachingService</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>CachingService</name>
<description>Demo project for cache</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-context</artifactId>
<version>1.1.8.RELEASE</version>
</dependency>
<!-- <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-config-client</artifactId>
<version>1.1.3.RELEASE</version> </dependency> -->
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
This is main class
package com.proto.reload;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.ApplicationPidFileWriter;
#SpringBootApplication
public class CachingServiceApplication {
public static void main(String[] args) {
if (args.length == 0) {
System.out.println("Invalid Commandline argument. Please provide Consumer Properties file.");
System.exit(0);
}
new SpringApplicationBuilder(CachingServiceApplication.class)
.listeners(new ApplicationPidFileWriter())
.properties("spring.config.name:" + args[0].replaceAll(".properties", ""))
.build()
.run(args);
while (true) {
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println(ConfigClass.getName());
}
}
}
Config class having #RefreshScope annotation
package com.proto.reload;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.context.annotation.Configuration;
#Configuration
#RefreshScope
public class ConfigClass {
private static String name;
public static String getName() {
return name;
}
#Value("${app.prop.name}")
public void setName(String name) {
this.name = name;
}
}
And this is property file I'm passing through argument
app.prop.name=FirstOldValue
spring.pid.file=TestOne.pid
When I run this code, I get the following error.
12:38:41.051 [main] DEBUG org.springframework.boot.context.logging.ClasspathLoggingApplicationListener - Application failed to start with classpath: [file:/C:/Program%20Files/Java/jre1.8.0_191/lib/resources.jar, file:/C:/Program%20Files/Java/jre1.8.0_191/lib/rt.jar, file:/C:/Program%20Files/Java/jre1.8.0_191/lib/jsse.jar, file:/C:/Program%20Files/Java/jre1.8.0_191/lib/jce.jar, file:/C:/Program%20Files/Java/jre1.8.0_191/lib/charsets.jar, file:/C:/Program%20Files/Java/jre1.8.0_191/lib/jfr.jar, file:/C:/Program%20Files/Java/jre1.8.0_191/lib/ext/access-bridge-64.jar, file:/C:/Program%20Files/Java/jre1.8.0_191/lib/ext/cldrdata.jar, ...]
12:38:41.105 [main] ERROR org.springframework.boot.SpringApplication - Application run failed
java.lang.NoSuchMethodError: org.springframework.boot.builder.SpringApplicationBuilder.<init>([Ljava/lang/Object;)V
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.bootstrapServiceContext(BootstrapApplicationListener.java:120)
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:84)
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:62)
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127)
at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:75)
at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:347)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:306)
at com.proto.reload.CachingServiceApplication.main(CachingServiceApplication.java:19)
Am I using #RefreshScope in wrong way ?
This code works fine when I remove dependency and #RefreshScope, but its not updating property value at runtime. My goal is to load modified property value at runtime.
1.1.8.RELEASE for Spring Cloud is part of the Camden Release train which is for Spring Boot 1.4.x releases.
Please see the Release Trains section for what release train to use for your Spring Boot version
https://spring.io/projects/spring-cloud
Currently they are,
Release Train Boot Version
Greenwich 2.1.x
Finchley 2.0.x
Edgware 1.5.x
Dalston 1.5.x
As your using spring boot 2.1.1 your dependency management should look like the below, note as Greenwich doesn't have a RELEASE yet you need to add the milestone repository.
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>http://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Greenwich.RC2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-context</artifactId>
</dependency>
</dependencies>
try this
#RefreshScope
public class ConfigClass {
#Value("${app.prop.name}")
private static String name;
public static String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
Add cloud context depedency and try again
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-context</artifactId>
<version>1.1.8.RELEASE</version>
</dependency>
Update :
it is just not a valid use case to have #Configuration and #RefreshScope on the same element. As per this URL thread : https://github.com/spring-cloud/spring-cloud-config/issues/43

BeanNotOfRequiredTypeException when using spring-JMS and spring cloud slueth

I have spring boot project(2.1.0 Release) with Spring Cloud sleuth.
Spring Sleuth's TracingConnectionFactoryBeanPostProcessor is overiding ConnectionFactory bean with LazyConnectionFactory Bean.As a result,I am hitting:
org.springframework.beans.factory.BeanNotOfRequiredTypeException: Bean named 'userCredentialsConnectionFactoryAdapter' is expected to be of type 'org.springframework.jms.connection.UserCredentialsConnectionFactoryAdapter' but was actually of type 'org.springframework.cloud.sleuth.instrument.messaging.LazyConnectionFactory'
Could anyone suggest a solution/workaround for this.
POM.xml
<?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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.sleuth.test</groupId>
<artifactId>Jms-Test</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>Jms-Test</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>Greenwich.M3</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-activemq</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-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-sleuth</artifactId>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.6</version>
</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>${spring-cloud.version}</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>
</project>
.
#Configuration
public class JmsConfig {
#Bean
public ActiveMQConnectionFactory connectionFactory(){
ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory();
connectionFactory.setBrokerURL("tcp://localhost:61616");
connectionFactory.setPassword("admin");
connectionFactory.setUserName("admin");
return connectionFactory;
}
#Bean
UserCredentialsConnectionFactoryAdapter userCredentialsConnectionFactoryAdapter(ConnectionFactory conFact) {
UserCredentialsConnectionFactoryAdapter userCredentialsConnectionFactoryAdapter = new UserCredentialsConnectionFactoryAdapter();
userCredentialsConnectionFactoryAdapter.setUsername("admin");
userCredentialsConnectionFactoryAdapter.setPassword("admin");
userCredentialsConnectionFactoryAdapter.setTargetConnectionFactory(conFact);
return userCredentialsConnectionFactoryAdapter;
}
#Bean
public JmsTemplate jmsTemplate(UserCredentialsConnectionFactoryAdapter conFactory){
JmsTemplate template = new JmsTemplate();
template.setConnectionFactory(conFactory);
return template;
}
#SpringBootApplication
public class JmsTestApplication {
#Autowired(required=true)
JmsTemplate jmsTemplate;
public static void main(String[] args) {
SpringApplication.run(JmsTestApplication.class, args);
new JmsTestApplication().sendMessage();
}
private void sendMessage() {
// TODO Auto-generated method stub
jmsTemplate.convertAndSend("QUEUE.USER", "user");
}
>#Bean
>public JmsTemplate jmsTemplate(UserCredentialsConnectionFactoryAdapter conFactory){
Don't inject the concrete type; inject the interface instead
#Bean
public JmsTemplate jmsTemplate(ConnectionFactory conFactory){
and qualify it if necessary with #Qualifier or use the correct bean name as the parameter name.

Use RouterFunction with embedded Eureka server

I'm having an issue getting a simple web app using Spring Reactive's RouterFunction to work with an embedded Eureka server. I tried a couple of things, including using the old way of annotating #RestController which works fine. Furthermore, I tried to removing the Eureka dependency from the POM file after which the RouterFunction endpoint worked fine.
POM:
<?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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.3.RELEASE</version>
</parent>
<groupId>com.test</groupId>
<artifactId>tds</artifactId>
<version>1.0-SNAPSHOT</version>
<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>
<!--SPRING-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
<version>2.0.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
</project>
Router, that does not get hit:
#Configuration
public class Router {
#Bean
public RouterFunction<ServerResponse> route(Handler handler) {
return route(GET("/test"), Handler::handle);
}
}
Controller, that get's hit fine:
#RestController
#ResponseStatus(HttpStatus.OK)
public class controller {
#GetMapping("/discovery")
public String getApplication() {
return "test2222";
}
}
Main:
#SpringBootApplication
#EnableEurekaServer
public class DiscoveryApp {
public static void main(String[] args) {
SpringApplication.run(com.test.tds.DiscoveryApp.class, args);
}
}
As stated above, after removing the dependency to Eureka the RouterFunction endpoint works fine.
Does anyone have an idea how to make this work?
Apparently Webflux is currently not supported by Eureka server. It is suggested to use the old spring-boot-starter-web way.
As future reference:
https://github.com/spring-cloud/spring-cloud-netflix/issues/3108#issuecomment-408262981

Spring Web-mvc not working with Spring Boot[Spring cloud]

I am new to microservices.I have created a microservice application using Spring.I am using "spring-cloud-starter-eureka-server".I have total 3 modules:
microservicecldm
account-microservice
webclient-microservice-server
Find below their main classes accordingly:
#EnableEurekaServer
#SpringBootApplication
public class MicroservicecldmApplication {
public static void main(String[] args) {
SpringApplication.run(MicroservicecldmApplication.class, args);
}
}
#EnableDiscoveryClient
#SpringBootApplication
#ComponentScan(basePackages="com.wmsdm.cloud")
public class WebclientMicroserviceServerApplication{
public static void main(String[] args) {
SpringApplication.run(WebclientMicroserviceServerApplication.class, args);
}
}
In application.properties I have following entries:
spring.application.name=WebclientMicroserviceServerApplication
eureka.client.serviceUrl.defaultZone:http://localhost:9091/eureka/
server.port=9993
eureka.instance.lease-renewal-interval-in-seconds=80
spring.mvc.view.prefix=/WEB-INF/view/
spring.mvc.view.suffix=.jsp
spring.mvc.static-path-pattern=/resources/**
I have a AccountController class as follows:
#Controller
public class AccountController {
#RequestMapping(value = "/account", method = RequestMethod.GET)
public String viewAccount() {
return "accountSummary";
}
}
I have the accountSummary.jsp page in my /WEB-INF/view path.Also in maven's pom.xml I have the following dependencies along with other dependencies:
<groupId>com.wmsdm.cloud</groupId>
<artifactId>webclient-microservice-server</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>webclient-microservice-server</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.8.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<spring-cloud.version>Dalston.SR4</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-eureka-server</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>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</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>
Inspite of these when I hit the URL:
http://localhost:9993/WebclientMicroserviceServerApplication/account
I get the error No mapping found for the requested uri
I suggest using spring-boot-starter-web instead of tomcat-embed-jasper. You can use multiple starters in your pom.xml.
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
See spring.io for more info.
Make sure the context component scan base package is correct. If not specified specify it using regex.

Spring 4 gs-rest-service gives Not acceptable 406 error

I'm trying to run the sample gs-rest-service-complete (https://spring.io/guides/gs/rest-service/) and get:
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.
Fri Jun 12 15:03:05 SGT 2015
There was an unexpected error (type=Not Acceptable, status=406).
Could not find acceptable representation
I've not made any modification on the code.
Here's the Greeting.java file
package hello;
public class Greeting {
private final long id;
private final String content;
public Greeting(long id, String content) {
this.id = id;
this.content = content;
}
public long getId() {
return id;
}
public String getContent() {
return content;
}
}
The Controller class:
package hello;
import java.util.concurrent.atomic.AtomicLong;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
#RestController
public class GreetingController {
private static final String template = "Hello, %s!";
private final AtomicLong counter = new AtomicLong();
#RequestMapping(value="/greeting")
public Greeting greeting(#RequestParam(value="name", defaultValue="World") String name) {
return new Greeting(counter.incrementAndGet(),
String.format(template, name));
}
}
I use the Application class to launch through spring boot:
package hello;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
And here is the pom.xml file:
<?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.springframework</groupId>
<artifactId>gs-rest-service</artifactId>
<version>0.1.0</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.2.4.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
<properties>
<java.version>1.7</java.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-releases</id>
<url>https://repo.spring.io/libs-release</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-releases</id>
<url>https://repo.spring.io/libs-release</url>
</pluginRepository>
</pluginRepositories>
</project>
I use Spring Tool Suite and imported the project directly from server. I run the project using spring boot.
Any specific configuration I've forgotten ?
I finally got this example to work by adding 2 dependencies in the pom.xml :
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
</dependency>
This is a strange behavior as those dependencies are included in spring-boot:
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
It was working for jackson-databind but not for the other two.
If anyone can explain this, please let me know.

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