Spring MVC 自定义拦截器

使用 Spring 自定义注解的用来做权限控制时：HandlerMethod handlerMethod = (HandlerMethod) handler; 异常。

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.log4j.Logger;
import org.springframework.util.StringUtils;
import org.springframework.web.method.HandlerMethod;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

public class AuthInterceptor extends HandlerInterceptorAdapter{
    private static final Logger logger = Logger.getLogger(AuthInterceptor.class);
   
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        String url = request.getRequestURL().toString();
           String contextPath = request.getContextPath();
           HttpSession session = request.getSession();
            logger.info("URL拦截: " + url);
            HandlerMethod handlerMethod = (HandlerMethod) handler;
           CheckSession isExitsa = handlerMethod.getMethodAnnotation(CheckSession.class);
        if (session.getAttribute(com.jab.core.Constants.SESSION_KEY) == null) {
             StringBuffer oldUrl = request.getRequestURL();
             String queryStr = request.getQueryString();
             StringBuffer appendUrl = new StringBuffer("");
             if(StringUtils.hasText(queryStr)){
                 appendUrl.append(oldUrl).append("?"+queryStr);
             } else {
                 appendUrl.append(oldUrl);
             }
                response.sendRedirect(contextPath + "/index#"+java.net.URLEncoder.encode(appendUrl.toString(),"utf-8"));
            return false;
        }
        return true;
     }
   
    @Override 
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { 
        logger.info("===========HandlerInterceptor1 postHandle");
    } 
    @Override 
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { 
        logger.info("===========HandlerInterceptor1 afterCompletion");
    } 
}

 

 

HandlerAdapter3.0以上的版本才有，而我现在使用的是Spring 4.0

异常代码：javax.servlet.ServletException: No adapter for handler [com.jab.controller.ArticleControlle@3742a77b]: The DispatcherServlet configuration needs to include a HandlerAdapter that supports this handler
at org.springframework.web.servlet.DispatcherServlet.getHandlerAdapter(DispatcherServlet.java:1163)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:939)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at com.jab.filter.AjaxPostFilter.doFilterInternal(AjaxPostFilter.java:77)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:620)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
    at java.lang.Thread.run(Unknown Source)

评论

3 楼 MyHope5143 2016-07-25  

        

2 楼 zx19924311 2015-12-11  

只想说我很多
加入注解驱动就OK了  <mvc:annotation-driven/>
handler：返回的就是HandlerMethod对象, 否则会一直返回Controller

1 楼 zx19924311 2015-12-11  

木有人吗！