I am creating a feign client to hit an external service. I added the following dependencies to my 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 https://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>2.2.5.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>in.njari</groupId>
<artifactId>util</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>util</name>
<description>Utilities for API Dev</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.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
<version>2.6.6</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Greenwich.SR3</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>
The two additions here are spring-cloud-starter-openfeign and spring-cloud-dependencies
Here is my feign client class :
@FeignClient(name = "chat-service", url = "${server.chatservice.url}")
public interface ChatServiceClient {
@PostMapping("/email/send")
void sendEmail(@RequestBody Map<String, String> sendEmailMap);
}
Next I'm autowiring this in one of my existing services. However, this leads to an error. What am I missing?
I tried adding @Service to my chatServiceClient, however that simply gives me this warning :
2022-04-11 17:02:07.358 DEBUG 87001 --- [ main] o.s.c.a.ClassPathBeanDefinitionScanner : Ignored because not a concrete top-level class: file [/Users/rajdeep/X/util/target/classes/in/njari/util/src/client/ChatServiceClient.class]
I think @FeignClient should be enough to register this as a bean, however it's not. What else do I need?
2022-04-11 16:50:41.917 INFO 86938 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$247290de] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.5.RELEASE)
2022-04-11 16:50:42.110 INFO 86938 --- [ main] in.njari.util.UtilApplication : No active profile set, falling back to default profiles: default
2022-04-11 16:50:42.236 DEBUG 86938 --- [ main] o.s.c.a.ClassPathBeanDefinitionScanner : Identified candidate component class: file [/Users/rajdeep/X/util/target/classes/in/njari/util/src/ExceptionReportingAdvice.class]
2022-04-11 16:50:42.268 DEBUG 86938 --- [ main] o.s.c.a.ClassPathBeanDefinitionScanner : Identified candidate component class: file [/Users/rajdeep/X/util/target/classes/in/njari/util/src/controller/UtilController.class]
2022-04-11 16:50:42.978 INFO 86938 --- [ main] o.s.cloud.context.scope.GenericScope : BeanFactory id=9ddeaaa5-b9f2-314c-82de-bbd43b8d74ad
2022-04-11 16:50:43.129 INFO 86938 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$247290de] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2022-04-11 16:50:43.732 INFO 86938 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2022-04-11 16:50:43.753 INFO 86938 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2022-04-11 16:50:43.753 INFO 86938 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.31]
2022-04-11 16:50:43.887 INFO 86938 --- [ main] o.a.c.c.C.[.[localhost].[/util-service] : Initializing Spring embedded WebApplicationContext
2022-04-11 16:50:43.888 INFO 86938 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1722 ms
2022-04-11 16:50:43.930 WARN 86938 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'exceptionReportingAdvice': Unsatisfied dependency expressed through field 'chatServiceClient'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'in.njari.util.src.client.ChatServiceClient' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
2022-04-11 16:50:43.932 INFO 86938 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2022-04-11 16:50:43.948 INFO 86938 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-04-11 16:50:43.948 DEBUG 86938 --- [ main] s.c.a.AnnotationConfigApplicationContext : Closing org.springframework.context.annotation.AnnotationConfigApplicationContext@28cda624, started on Mon Apr 11 16:50:41 IST 2022
2022-04-11 16:50:44.091 ERROR 86938 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Field chatServiceClient in in.njari.util.src.ExceptionReportingAdvice required a bean of type 'in.njari.util.src.client.ChatServiceClient' that could not be found.
The injection point has the following annotations:
- @org.springframework.beans.factory.annotation.Autowired(required=true)
Action:
Consider defining a bean of type 'in.njari.util.src.client.ChatServiceClient' in your configuration.
Process finished with exit code 1
CodePudding user response：
try @EnableFeignClients in your main class:
@SpringBootApplication
@EnableFeignClients
public class ExampleApplication {
public static void main(String[] args) {
SpringApplication.run(ExampleApplication.class, args);
}
}