...core.annotation.AnnotationUtils.isCandidateClass(Ljava/lang/Class;Ljava/lang/Class;)Z

問題：

2020-04-28 15:12:08.393  WARN 11720 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'objectMapperConfigurer' defined in class path resource [springfox/documentation/spring/web/SpringfoxWebMvcConfiguration.class]: Initialization of bean failed; nested exception is java.lang.NoSuchMethodError: org.springframework.core.annotation.AnnotationUtils.isCandidateClass(Ljava/lang/Class;Ljava/lang/Class;)Z
2020-04-28 15:12:08.406  INFO 11720 --- [           main] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2020-04-28 15:12:08.415 ERROR 11720 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

***************************
APPLICATION FAILED TO START
***************************

Description:

An attempt was made to call a method that does not exist. The attempt was made from the following location:

    org.springframework.transaction.annotation.SpringTransactionAnnotationParser.isCandidateClass(SpringTransactionAnnotationParser.java:44)

The following method did not exist:

    org.springframework.core.annotation.AnnotationUtils.isCandidateClass(Ljava/lang/Class;Ljava/lang/Class;)Z

The method's class, org.springframework.core.annotation.AnnotationUtils, is available from the following locations:

    jar:file:/D:/MavenServer/MavenRepository/maven_jar/org/springframework/spring-core/5.1.8.RELEASE/spring-core-5.1.8.RELEASE.jar!/org/springframework/core/annotation/AnnotationUtils.class

It was loaded from the following location:

    file:/D:/MavenServer/MavenRepository/maven_jar/org/springframework/spring-core/5.1.8.RELEASE/spring-core-5.1.8.RELEASE.jar


Action:

Correct the classpath of your application so that it contains a single, compatible version of org.springframework.core.annotation.AnnotationUtils

           

解決方案：

你的 org.springframework配置得jar包版本不一緻，我配置得是2.1.6的

原jar：

<!--spring boot-->
        <dependency> 	
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>2.1.6.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
            <version>2.1.6.RELEASE</version>
        </dependency>
         <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.2.2.RELEASE</version>
            <scope>compile</scope>
        </dependency>
           

因為這個5.2.2在2.1.6jar裡沒有，2.1.6裡面隻有5.1.8是以改成：

<!--spring boot-->
        <dependency> 	
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>2.1.6.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
            <version>2.1.6.RELEASE</version>
        </dependency>
         <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.1.8.RELEASE</version>
            <scope>compile</scope>
        </dependency>