Tag Archives: SpringCloudgateway

Springcloud: gateway module startup error

1. Error message

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'routeDefinitionRouteLocator' defined in class path resource [org/springframework/cloud/gateway/config/GatewayAutoConfiguration.class]: Unsatisfied dependency expressed through method 'routeDefinitionRouteLocator' parameter 4; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.core.convert.ConversionService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Qualifier(value=webFluxConversionService)}
   
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.core.convert.ConversionService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Qualifier(value=webFluxConversionService)}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1662) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1221) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1175) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:857) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:760) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    ... 19 common frames omitted

2. Reasons

Also introduce dependencies: spring cloud starter gateway and spring boot starter web

The web module has been referenced in the gateway, which will cause conflicts. I noticed this reason when learning the gateway, but still reported errors

Pom.xml file is as follows

<dependencies>
        <dependency>
            <groupId>com.fdzang.microservice</groupId>
            <artifactId>api-common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
<dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-gateway</artifactId> <version>${spring.cloud.starter.version}</version> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId> <version>${spring.cloud.starter.version}</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-configuration-processor</artifactId> <version>${spring.boot.version}</version> <optional>true</optional> </dependency> </dependencies>

I didn’t rely on the web module in my POM, and still reported an error, so I tried to exclude the web from the gateway, but to no avail, so Baidu

After various attempts, I found that the public module common I cited cited cited the web module and solved the case

So remove

<dependency>
  <groupId>com.fdzang.microservice</groupId>
  <artifactId>api-common</artifactId>
  <version>1.0-SNAPSHOT</version>
  <exclusions>
    <exclusion>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </exclusion>
  </exclusions>
</dependency>

Run successfully