java - 用 java 配置完全替换 web.xml (Spring MVC 4 - Tomcat 7/8)

Question

在 Google 上搜索了 3 个多小时后，我放弃了。

我有这个 web.xml:

<context-param>
    <param-name>contextClass</param-name>
    <param-value>
        org.springframework.web.context.support.AnnotationConfigWebApplicationContext
    </param-value>
</context-param>
<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>ar.com.dera.simor.config</param-value>
</context-param>

<jsp-config>
    <jsp-property-group>
        <url-pattern>*.jsp</url-pattern>
        <trim-directive-whitespaces>true</trim-directive-whitespaces>
    </jsp-property-group>
</jsp-config>

<error-page>
    <error-code>404</error-code>
    <location>/not_found</location>
</error-page>

好的，我只使用 servlet 和 Spring Security 就成功了。而且，我想配置(在 Java 中)jsp-config 和错误页面。

我该怎么做？这是我的 WebInitializer 类:

@Configuration
public class WebInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {

    @Override
    public void onStartup(ServletContext servletContext) throws ServletException {
        AnnotationConfigWebApplicationContext rootContext = new AnnotationConfigWebApplicationContext();
        rootContext.register(WebConfig.class);
        rootContext.scan("ar.com.dera.simor.config");
        ServletRegistration.Dynamic appServlet = servletContext.addServlet(
                "appServlet", new DispatcherServlet(rootContext));
        appServlet.setLoadOnStartup(1);
        appServlet.addMapping("/");
        servletContext.addListener(new ContextLoaderListener(rootContext));

        servletContext.addFilter("securityFilter", new DelegatingFilterProxy("springSecurityFilterChain"))
            .addMappingForUrlPatterns(null, false, "/*");
    }

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

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

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

    @Override
    protected Filter[] getServletFilters() {
        CharacterEncodingFilter utf8Filter = new CharacterEncodingFilter();
        utf8Filter.setEncoding("UTF-8");
        utf8Filter.setForceEncoding(true);

        return new Filter[] { utf8Filter };
    }
}

Answer 1

基本上，你不能。 ServletContext不提供任何从头开始配置错误页面和 JSP 的方法。但是，它确实提供了一个 getJspConfigDescriptor 获取<jsp-config>的方法配置(只读)。