去除链接后面的jsessionid

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpServletResponseWrapper;
import javax.servlet.http.HttpSession;
import java.io.IOException;

/**
*
* <p>Title: DisableUrlSessionFilter.java</p>
* <p>Description:去除URL里的jsessionid </p>
* <p>Company: </p>
* @author 
* @date
* @version 1.0
*/
public class DisableUrlSessionFilter implements Filter{
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
    if (!(request instanceof HttpServletRequest)) {
          chain.doFilter(request, response);
          return;
     }
     HttpServletRequest httpRequest = (HttpServletRequest) request;
     HttpServletResponse httpResponse = (HttpServletResponse) response;
     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);
}
@Override
public void init(FilterConfig arg0) throws ServletException {
// TODO Auto-generated method stub
}
@Override
public void destroy() {
// TODO Auto-generated method stub
}
}
然后在web.xml里配置一下
<filter>
   <filter-name>jsessionid</filter-name>
   <filter-class>
    com.cps.interceptor.DisableUrlSessionFilter
   </filter-class>
</filter>
<filter-mapping>
   <filter-name>jsessionid</filter-name>
   <url-pattern>/*</url-pattern>
</filter-mapping>