「@Bean方法僅在@Configuration註釋類中聲明時有效」錯誤

Question

我想使用Spring MVC和JavaConfigs而不是XML文件製作Hello World應用程序。我讀過你可以使用@Bean聲明一個bean，如果該類用@Configuration註解的話。我有一個用@Configuration註解的類和一個用@Bean註解的方法。一個@Configuration 註解類

而下面的內聲明的，只有當

@Bean方法是有效的：

我的IntelliJ內12（紅色下劃線錯誤）收到錯誤消息在Tomcat 7.0.37啓動錯誤消息：

SEVERE: Context initialization failed 
org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [S:\dropbox\Shared Folders\Majerus Eric (BBY)\SpringMVCBarebones\target\SpringMVCBarebones\WEB-INF\classes\com\springapp\mvc\WebAppConfig.class]; nested exception is java.lang.annotation.AnnotationFormatError: Invalid default: public abstract org.springframework.beans.factory.annotation.Autowire org.springframework.config.java.annotation.Bean.autowire() 

WebAppConfig

package com.springapp.mvc; 

import org.springframework.config.java.annotation.Bean; 
import org.springframework.context.annotation.ComponentScan; 
import org.springframework.context.annotation.Configuration; 
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer; 
import org.springframework.web.servlet.config.annotation.EnableWebMvc; 
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; 
import org.springframework.web.servlet.view.InternalResourceViewResolver; 

@EnableWebMvc 
@ComponentScan("com.springapp.mvc") 
@Configuration 
public class WebAppConfig extends WebMvcConfigurerAdapter { 

    @Override 
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) { 
     configurer.enable(); 
    } 

    @Bean 
    public InternalResourceViewResolver getInternalResourceViewResolver() { 
     InternalResourceViewResolver resolver = new InternalResourceViewResolver(); 
     resolver.setPrefix("/WEB-INF/pages/"); 
     resolver.setSuffix(".jsp"); 
     return resolver; 
    } 
} 

WebAppInitializer

package com.springapp.mvc; 

import org.springframework.web.WebApplicationInitializer; 
import org.springframework.web.context.ContextLoaderListener; 
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext; 
import org.springframework.web.servlet.DispatcherServlet; 


import javax.servlet.ServletContext; 
import javax.servlet.ServletException; 
import javax.servlet.ServletRegistration; 

public class WebAppInitializer implements WebApplicationInitializer { 

    @Override 
    public void onStartup(ServletContext container) throws ServletException { 

     // Create the 'root' Spring application context. 
     AnnotationConfigWebApplicationContext rootContext = new AnnotationConfigWebApplicationContext(); 

     // Manage the lifecycle of the root application context. 
     container.addListener(new ContextLoaderListener(rootContext)); 

     // Create the dispatcher servlet's Spring application context 
     AnnotationConfigWebApplicationContext dispatcherContext = new AnnotationConfigWebApplicationContext(); 
     dispatcherContext.register(WebAppConfig.class); 

     ServletRegistration.Dynamic dispatcher = container.addServlet("dispatcher", new DispatcherServlet(dispatcherContext)); 
     dispatcher.setLoadOnStartup(1); 
     dispatcher.addMapping("/"); 
    } 
} 

作爲一個例子，我用這個教程：Migrate Spring MVC servlet.xml to Java Config並且還取決於WebAppInitializer Spring文檔。

我的git回購託管在Bitbucket here上。

Answer 1

看看你的pom，你已經添加了spring-javaconfig。 spring-javaconfig已經合併到spring 3.X中，所以你不需要它。刪除它，它應該運行良好。