Spring Web MVC Java配置 - 默认Servlet名称

Question

我在春天写了一个小应用程序来学习java配置,因为我已经被同行唠叨了一段时间来升级我们的应用程序;-),一个简单的待办事项列表应用程序,它具有安全性和web mvc配置,JPA用于持久性,所有通过java配置.我在尝试运行应用程序时遇到了问题.scurity配置和JPA等工作正常但在成功拦截受保护的URL后我得到一个空视图

主Web应用程序初始化程序类扩展 AbstractAnnotationConfigDispatcherServletInitializer

public class WiggleWebApplicationInitializer extends
        AbstractAnnotationConfigDispatcherServletInitializer {

    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class<?>[] { WiggleApplicationConfig.class };
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {

        return new Class<?>[] { WiggleWebAppConfig.class };
    }

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

    @Override
    protected void registerDispatcherServlet(ServletContext servletContext) {
        super.registerDispatcherServlet(servletContext);

        servletContext.addListener(new HttpSessionEventPublisher());

    }

    @Override
    protected Filter[] getServletFilters() {
        CharacterEncodingFilter characterEncodingFilter = new CharacterEncodingFilter();
        characterEncodingFilter.setEncoding("UTF-8");
        characterEncodingFilter.setForceEncoding(true);

        return new Filter[] { characterEncodingFilter };
    }
}

在WiggleApplicationConfig进口安全,JPA和社会

@Configuration
@ComponentScan(basePackages = { "wiggle.app.services.*" })
@Import({ WigglePersistenceConfig.class, WiggleSecurityConfig.class,
        WiggleSocialConfig.class })
public class WiggleApplicationConfig {

    @Bean
    public DateFormat dateFormat() {
        return new SimpleDateFormat("dd-MM-yyyy");
    }

}

然后,Web配置添加默认处理程序等

@Configuration
@EnableWebMvc
@ComponentScan(basePackages = { "wiggle.app.controllers.*" })
public class WiggleWebAppConfig extends WebMvcConfigurerAdapter {

    private static final String VIEW_RESOLVER_PREFIX = "/WEB-INF/jsp/";
    private static final String VIEW_RESOLVER_SUFFIX = ".jsp";

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

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

    @Bean
    public SimpleMappingExceptionResolver exceptionResolver() {
        SimpleMappingExceptionResolver exceptionResolver = new SimpleMappingExceptionResolver();

        Properties exceptionMappings = new Properties();

        exceptionMappings.put("java.lang.Exception", "error/error");
        exceptionMappings.put("java.lang.RuntimeException", "error/error");

        exceptionResolver.setExceptionMappings(exceptionMappings);

        Properties statusCodes = new Properties();

        statusCodes.put("error/404", "404");
        statusCodes.put("error/error", "500");

        exceptionResolver.setStatusCodes(statusCodes);

        return exceptionResolver;
    }

    @Bean
    public ViewResolver viewResolver() {
        InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();

        viewResolver.setViewClass(JstlView.class);
        viewResolver.setPrefix(VIEW_RESOLVER_PREFIX);
        viewResolver.setSuffix(VIEW_RESOLVER_SUFFIX);

        return viewResolver;
    }

}

所有这些都存在于包中wiggle.app.config,通过我的配置/**受到保护并且应该重定向到/ login,这对所有人开放,安全过滤器链确实可以正常工作,我看到Access Denied之后有重定向到/ wiggle/login如何当我访问主页时,我得到了404以后的日志条目http://localhost:8080/wiggle/

Previously Authenticated: org.springframework.security.authentication.AnonymousAuthenticationToken@6faeba70: Principal: anonymousUser; Credentials: [PROTECTED]; Authenticated: true; Details: org.springframework.security.web.authentication.WebAuthenticationDetails@fffbcba8: RemoteIpAddress: 0:0:0:0:0:0:0:1; SessionId: 8A7C29831E56336A6FDF1A0E19200E70; Granted Authorities: ROLE_ANONYMOUS 
Voter: org.springframework.security.web.access.expression.WebExpressionVoter@c01ac1b, returned: 1 
Authorization successful 
RunAsManager did not change Authentication object 
/login reached end of additional filter chain; proceeding with original chain 
DispatcherServlet with name 'dispatcher' processing GET request for [/wiggle/login] 
Looking up handler method for path /login 
Did not find handler method for [/login] 
Matching patterns for request [/login] are [/**] 
URI Template variables for request [/login] are {} 
Mapping [/login] to HandlerExecutionChain with handler [org.springframework.web.servlet.resource.DefaultServletHttpRequestHandler@688a42b5] and 1 interceptor 
Last-Modified value for [/wiggle/login] is: -1 
SecurityContext is empty or contents are anonymous - context will not be stored in HttpSession. 
Null ModelAndView returned to DispatcherServlet with name 'dispatcher': assuming HandlerAdapter completed request handling 
Successfully completed request 
Chain processed normally 
SecurityContextHolder now cleared, as request processing completed 

我通常会将以下内容放在XML中来处理映射

<beans:bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
<!-- Enables annotated POJO @Controllers -->
<beans:bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">

和

 <!-- Scans within the base package of the application for @Components to configure as beans -->
 <context:component-scan base-package="com.code.controller" />

我无法找到我缺少的东西,以启用Java配置的类似行为.

Answer 1

事实证明，我错过了关于此配置的重要文档，Spring Framework 文档中的16.16.8 mvc:default-servlet-handler节

\n\n

\n

覆盖“/”Servlet 映射的注意事项是，必须按名称而不是按路径检索默认 Servlet 的 RequestDispatcher。DefaultServletHttpRequestHandler 将尝试在启动时自动检测容器的默认 Servlet，使用大多数主要 Servlet 容器（包括 Tomcat、Jetty、GlassFish、JBoss、Resin、WebLogic 和 WebSphere）的已知名称列表。如果默认 Servlet 已使用不同的名称进行自定义配置，或者正在使用默认 Servlet 名称未知的不同 Servlet 容器，则必须显式提供默认 Servlet\xe2\x80\x99s 名称，如下例所示:

\n

\n\n

@Configuration\n@EnableWebMvc\npublic class WebConfig extends WebMvcConfigurerAdapter {\n\n    @Override\n    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {\n        configurer.enable("myCustomDefaultServlet");\n   }\n

\n\n

}

\n\n

因此我改变了这个

\n\n

@Override\npublic void configureDefaultServletHandling(\n        DefaultServletHandlerConfigurer configurer) {\n    configurer.enable("wiggleServlet");\n}\n

\n\n

还有另一处配置错误

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@Configuration\n@EnableWebMvc\n@ComponentScan(basePackages = { "wiggle.app.controllers.*" })\npublic class WiggleWebAppConfig extends WebMvcConfigurerAdapter {\n

\n\n

应该

\n\n

@Configuration\n@EnableWebMvc\n@ComponentScan(basePackages = { "wiggle.app.controllers" })\npublic class WiggleWebAppConfig extends WebMvcConfigurerAdapter {\n

\n