一个request包装类，解决get方式提交数据的乱码 、html标签转义、关键词过滤问题
/***分享自己写的一个request包装类，解决get方式提交数据的乱码*html标签转义、关键词过滤问题*/
package com.hcy.test.filter;import java.io.UnsupportedEncodingException;import java.util.Enumeration;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletRequestWrapper;public class MyHttpRequest extends HttpServletRequestWrapper {HttpServletRequest request;String[] dWords={"fuck","shit","操"};public MyHttpRequest(HttpServletRequest request) {super(request);this.request=request;}@Overridepublic String getParameter(String name) {String value=request.getParameter(name);try {//对所有的参数重新编码value=new String(value.getBytes("ISO-8859-1"),"UTF-8");//对html标签进行转义value= filter(value);//对某些词汇进行过滤for(String dw:dWords){value=value.replace(dw, "**");}} catch (UnsupportedEncodingException e) {e.printStackTrace();}return value;} public String filter(String message) { if (message == null) return (null); char content[] = new char[message.length()]; message.getChars(0, message.length(), content, 0); StringBuffer result = new StringBuffer(content.length + 50); for (int i = 0; i < content.length; i++) { switch (content[i]) { case '<': result.append("<"); break; case '>': result.append(">"); break; case '&': result.append("&"); break; case '"': result.append("""); break; default: result.append(content[i]); } } return (result.toString()); }}