Question

我正在尝试从Spring XML配置迁移到Java Based，我让它至少运行，但资产（css，js，imgs）没有加载，我从响应中得到错误500。资产文件夹位于WEB-INF的同一级别的webapp文件夹下任何人都知道如何解决它？可能是配置上的错误。

堆栈跟踪：

 07-May-2014 22:02:58.793 SEVERE [http-apr-8080-exec-1] org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [dispatcher] in context with path [] threw exception [Request processing failed; nested exception is java.lang.NullPointerException] with root cause
 java.lang.NullPointerException
    at org.apache.catalina.webresources.Cache.noCache(Cache.java:150)
    at org.apache.catalina.webresources.Cache.getResource(Cache.java:64)
    at org.apache.catalina.webresources.StandardRoot.getResource(StandardRoot.java:203)
    at org.apache.catalina.webresources.StandardRoot.getResource(StandardRoot.java:193)
    at org.apache.catalina.core.ApplicationContext.getResource(ApplicationContext.java:533)
    at org.apache.catalina.core.ApplicationContextFacade.getResource(ApplicationContextFacade.java:198)
    at org.apache.catalina.core.StandardContext$NoPluggabilityServletContext.getResource(StandardContext.java:6510)
    at org.springframework.web.context.support.ServletContextResource.exists(ServletContextResource.java:102)
    at org.springframework.web.servlet.resource.ResourceHttpRequestHandler.getResource(ResourceHttpRequestHandler.java:178)
    at org.springframework.web.servlet.resource.ResourceHttpRequestHandler.handleRequest(ResourceHttpRequestHandler.java:123)
    at org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter.handle(HttpRequestHandlerAdapter.java:51)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:618)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:301)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:186)
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:136)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:74)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:516)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1015)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:652)
    at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:277)
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2451)
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2440)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

我的配置类

@Configuration
@ComponentScan(basePackages = {"br.com.cheetah.catalog.*"})
@Import({SecurityContext.class, PersistenceContext.class})
@EnableWebMvc
public class SpringMvcContext extends WebMvcConfigurerAdapter
{

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry)
    {
        registry.addResourceHandler("/asset/**").addResourceLocations("../webapp/asset/**").setCachePeriod(20);
    }

    @Bean
    public InternalResourceViewResolver viewResolver()
    {
        InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
        viewResolver.setViewClass(JstlView.class);
        viewResolver.setPrefix("/WEB-INF/pages/");
        viewResolver.setSuffix(".jsp");
        return viewResolver;
    }
}

持久性配置

@Configuration
@EnableJpaRepositories(basePackages = {"br.com.cheetah.catalog.repository"},
                       entityManagerFactoryRef = "entityManagerFactory",
                       transactionManagerRef = "transactionManager")
@EnableTransactionManagement(proxyTargetClass = true)
public class PersistenceContext
{
    @Bean(name = "entityManagerFactory")
    public LocalContainerEntityManagerFactoryBean entityManagerFactoryBean()
    {
        LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
        entityManagerFactoryBean.setPersistenceUnitName("PersistenceUnit");
        return entityManagerFactoryBean;

    }

    @Bean(name = "transactionManager")
    public JpaTransactionManager transactionManager()
    {
        JpaTransactionManager transactionManager = new JpaTransactionManager();
        transactionManager.setEntityManagerFactory(entityManagerFactoryBean()
                                                           .getObject());
        return transactionManager;
    }

    @Bean
    public PersistenceAnnotationBeanPostProcessor
    persistenceAnnotationBeanPostProcessor()
    {
        return new PersistenceAnnotationBeanPostProcessor();
    }
}

初始化程序

@Order(1)
public class SpringInitializer extends
                               AbstractAnnotationConfigDispatcherServletInitializer
{
    @Override
    protected Class<?>[] getRootConfigClasses()
    {
        return new Class<?>[]{SpringMvcContext.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses()
    {
        return null;
    }

    @Override
    protected String[] getServletMappings()
    {
        return new String[]{"/"};
    }
}

安全配置

@Configuration
@EnableWebSecurity
public class SecurityContext extends WebSecurityConfigurerAdapter
{

    @Resource
    private CustomUserDetailsService userDetailsService;

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception
    {
        auth.userDetailsService(userDetailsService).passwordEncoder(new ShaPasswordEncoder());
    }

    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception
    {
        return super.authenticationManagerBean();
    }


    @Override
    protected void configure(HttpSecurity http) throws Exception
    {
        http.authorizeRequests().antMatchers("/catalog/**").authenticated()
                .antMatchers("/")
                .permitAll()
                .and()
                .formLogin()
                .loginPage
                         ("/")
                .failureUrl("/?error")
                .defaultSuccessUrl
                         ("/catalog/control-panel")
                .and()
                .logout()
                .logoutSuccessUrl("/")
                .invalidateHttpSession(true)
                .deleteCookies("JSESSIONID")
                .logoutUrl("/logout")
                .permitAll()
                .and()
                .sessionManagement()
                .maximumSessions(1);

    }

    @Override
    public void configure(WebSecurity web) throws Exception
    {
        web.ignoring().antMatchers("/asset/**");
    }
}


@Order(2)
public class SecurityInitializer extends
                                 AbstractSecurityWebApplicationInitializer
{
}

Answer 1

感谢Andrei Stefan，我让它简单地替换为

@Override
    public void addResourceHandlers(ResourceHandlerRegistry registry)
    {
        registry.addResourceHandler("/asset/**").addResourceLocations("/asset/**");
    }

Spring Java Config不加载资产

1 个答案: