Spring Boot：无法在类org.springframework.cloud.netflix.zuul.ZuulConfiguration上内省带注释的方法

Question

我正在尝试将我的spring boot中的请求路由到另一台服务器。

POM

<?xml version="1.0"?>
<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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>com.company.etc.settings</groupId>
        <artifactId>projects</artifactId>
        <version>1.8</version>
    </parent>
    <groupId>com.company.gateway</groupId>
    <artifactId>gateway</artifactId>
    <name>gateway</name>
    <version>0.0.1</version>
    <packaging>jar</packaging>
    <inceptionYear>2017</inceptionYear>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.source.version>1.8</java.source.version>
        <pmd.version>3.6</pmd.version>
        <findbugs.version>3.0.3</findbugs.version>
        <spring.boot>1.5.3.RELEASE</spring.boot>
        <swagger.version>1.5.13</swagger.version>
        <jacoco.version>0.7.5.201505241946</jacoco.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>${spring.boot}</version>
            <type>pom</type>
        </dependency>
        <dependency>
            <groupId>com.oracle</groupId>
            <artifactId>ojdbc</artifactId>
            <version>7</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jersey</artifactId>
            <version>${spring.boot}</version>
            <type>pom</type>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-logging</artifactId>
            <version>${spring.boot}</version>
            <type>pom</type>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-zuul</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>${spring.boot}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
            <version>${spring.boot}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
            <version>${spring.boot}</version>
            <type>pom</type>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
            <version>${spring.boot}</version>
            <type>pom</type>
        </dependency>
        <dependency>
            <groupId>io.swagger</groupId>
            <artifactId>swagger-jaxrs</artifactId>
            <version>${swagger.version}</version>
        </dependency>
        <dependency>
            <artifactId>junit</artifactId>
            <groupId>junit</groupId>
            <version>4.11</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-all</artifactId>
            <version>1.10.19</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.easytesting</groupId>
            <artifactId>fest-assert</artifactId>
            <version>1.4</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Brixton.SR5</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement> 
</project>

Application.properties

zuul.routes.foos.path=/r/users/**
zuul.routes.foos.url=http://com.company.sws/c/users/

主类

@EnableZuulProxy
@SpringBootApplication
@ComponentScan
@EnableAutoConfiguration
public class GatewayApplication {

  public static void main(String[] args) {
    SpringApplication.run(GatewayApplication.class, args);
  }
}

启动应用程序时出现此错误

2017-06-20 09:13:42.720 ERROR 15296 --- [           main] o.s.boot.SpringApplication               : Application startup failed

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process import candidates for configuration class [se.telenor.bapigateway.GatewayApplication]; nested exception is java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.cloud.netflix.zuul.ZuulConfiguration
        at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:616)
        at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:299)
        at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245)
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:198)
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:167)
        at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:308)
        at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:228)
        at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:270)
        at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:93)
        at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:686)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:524)
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737)
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:314)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151)
        at se.telenor.bapigateway.GatewayApplication.main(GatewayApplication.java:20)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:50)
        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51)
Caused by: java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.cloud.netflix.zuul.ZuulConfiguration
        at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:163)
        at org.springframework.context.annotation.ConfigurationClassParser.retrieveBeanMethodMetadata(ConfigurationClassParser.java:380)
        at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:314)
        at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245)
        at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:606)
        ... 25 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/context/embedded/ServletRegistrationBean
        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
        at java.lang.Class.getDeclaredMethods(Class.java:1975)
        at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:152)
        ... 29 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.context.embedded.ServletRegistrationBean
        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:94)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

Answer 1

在spring-boot 1.4版中不推荐使用

org.springframework.boot.context.embedded.ServletRegistrationBean，并引入了替代版org.springframework.boot.web.servlet.ServletRegistrationBean。已弃用的类已在spring-boot 1.5版中删除。您的应用程序或其中一个依赖项中的某些内容需要更新才能使用替换。

Answer 2

spring-boot版本1.5.x在您的依赖项配置中使用Dalston.RELEASE代替Brixton.SR5：

<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Dalston.RELEASE</version>

Answer 3

这是由于spring-boot中存在依赖关系。使用以下依赖项

    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-dependencies</artifactId>
        <version>Greenwich.RELEASE</version>
    </dependency>

Please find initial working code

Answer 4

使用Spring Start site，看来Spring Boot 1.5的正确Spring Cloud版本是：

• Edgware.SR5代表Spring Boot >=1.5.0.RELEASE and <=1.5.19.RELEASE和
• Edgware.BUILD-SNAPSHOT for Spring Boot >=1.5.999.BUILD-SNAPSHOT and <2.0.0.M1

Spring Starter Actuator Info页的完整输出，

"spring-cloud": {
    "Edgware.SR5": "Spring Boot >=1.5.0.RELEASE and <=1.5.19.RELEASE",
    "Edgware.BUILD-SNAPSHOT": "Spring Boot >=1.5.999.BUILD-SNAPSHOT and <2.0.0.M1",
    "Finchley.M2": "Spring Boot >=2.0.0.M3 and <2.0.0.M5",
    "Finchley.M3": "Spring Boot >=2.0.0.M5 and <=2.0.0.M5",
    "Finchley.M4": "Spring Boot >=2.0.0.M6 and <=2.0.0.M6",
    "Finchley.M5": "Spring Boot >=2.0.0.M7 and <=2.0.0.M7",
    "Finchley.M6": "Spring Boot >=2.0.0.RC1 and <=2.0.0.RC1",
    "Finchley.M7": "Spring Boot >=2.0.0.RC2 and <=2.0.0.RC2",
    "Finchley.M9": "Spring Boot >=2.0.0.RELEASE and <=2.0.0.RELEASE",
    "Finchley.RC1": "Spring Boot >=2.0.1.RELEASE and <2.0.2.RELEASE",
    "Finchley.RC2": "Spring Boot >=2.0.2.RELEASE and <2.0.3.RELEASE",
    "Finchley.SR3": "Spring Boot >=2.0.3.RELEASE and <2.0.999.BUILD-SNAPSHOT",
    "Finchley.BUILD-SNAPSHOT": "Spring Boot >=2.0.999.BUILD-SNAPSHOT and <2.1.0.M3",
    "Greenwich.M1": "Spring Boot >=2.1.0.M3 and <2.1.0.RELEASE",
    "Greenwich.RELEASE": "Spring Boot >=2.1.0.RELEASE and <2.1.4.BUILD-SNAPSHOT",
    "Greenwich.BUILD-SNAPSHOT": "Spring Boot >=2.1.4.BUILD-SNAPSHOT"
},