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去除url中自带的jsessionid

2024-07-06 11:51:16   226人阅读

web.xml中配置Filter：

 

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<filter>
   <filter-name>jsessionid</filter-name>
   <filter-class>
    cn.iautos.mall.filter.RemoveUrlSessionFilter
   </filter-class>
</filter>
<filter-mapping>
   <filter-name>jsessionid</filter-name>
   <url-pattern>/*</url-pattern>
</filter-mapping>
  

 

 

java代码如下：

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package cn.iautos.mall.filter;
 
import java.io.IOException;
 
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpServletResponseWrapper;
import javax.servlet.http.HttpSession;
 
/**
 * 去除url中的jsessionid
 * @author xuzhenmin
 * @version 2014-5-30  下午2:33:34
 */
public class RemoveUrlSessionFilter implements Filter {
 
    
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        // skip non-http requests
        if (!(request instanceof HttpServletRequest)) {
             chain.doFilter(request, response);
            return;
         }
 
         HttpServletRequest httpRequest = (HttpServletRequest) request;
         HttpServletResponse httpResponse = (HttpServletResponse) response;
 
        // clear session if session id in URL
        if (httpRequest.isRequestedSessionIdFromURL()) {
             HttpSession session = httpRequest.getSession();
            if (session != null) session.invalidate();
         }
 
        // wrap response to remove URL encoding
         HttpServletResponseWrapper wrappedResponse = new HttpServletResponseWrapper(httpResponse) {
             @Override
            public String encodeRedirectUrl(String url) {
                return url;
             }
 
          
            public String encodeRedirectURL(String url) {
                return url;
             }
 
            
            public String encodeUrl(String url) {
                return url;
             }
 
            
            public String encodeURL(String url) {
                return url;
             }
         };
 
        // process next request in chain
         chain.doFilter(request, wrappedResponse);
     }
 
    /**
      * Unused.
     */
    public void init(FilterConfig config) throws ServletException {
     }
 
    /**
      * Unused.
     */
    public void destroy() {
     }
}

 

 


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