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)