如何拒绝非法IP地址的用户发送请求？

最新推荐文章于 2025-03-21 11:16:21 发布

wucuilan827

最新推荐文章于 2025-03-21 11:16:21 发布

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分类专栏： struts 文章标签： import exception redirect tomcat string class

本文链接：https://blog.csdn.net/wucuilan827/article/details/1563343

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1. 在工程中建类：MyRequestProcessor .java

package classmate;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.RequestProcessor;
import org.apache.commons.logging.Log;

public class MyRequestProcessor extends RequestProcessor {

public MyRequestProcessor(){

}

protected boolean processPreprocess(HttpServletRequest request, HttpServletResponse response) {
  boolean continueProcessing = true;

  //get userIP
  String remoteHost = request.getRemoteHost();
  log.info("Request from host: " + remoteHost);

  //make sure the host is from one that you expect
  if((remoteHost == null) || !remoteHost.startsWith("127.")){
   continueProcessing = false;
//   forward failpage
   try{
    response.sendRedirect("error.jsp");
   }catch(Exception ex){
    log.error("Problem sending redirect form processPreprocess()");
   }
  }
  return continueProcessing;
}