求助---使用Ajax传递中文参数

zhour560 · 发表于 2006-9-14 16:57

<%@ page language="java" contentType="text/html; charset=UTF-8"%>
<html>
  <head>
<title>article.html</title>
  <script type="text/javascript" src="js/common.js"></script>
  <script type="text/javascript">
  var completeDiv;
  var inputField;
  var nameTable;
  var nameTableBody;
  function initVars() {
   inputField = document.getElementById("title"

;
nameTable = document.getElementById("name_table"

;
completeDiv = document.getElementById("popup"

;
nameTableBody = document.getElementById("name_table_body"

;

  }

  function findNames(){
initVars();
if (inputField.value.length > 0) {
   createXMLHttpRequest();
   var url = "article.do?method=search&title="+escape(inputField.value);

   xmlHttp.open("GET", url, true);
   xmlHttp.onreadystatechange = callback;
   xmlHttp.send(null);
} else {
   clearNames();
}
  }
  function callback() {
         if (xmlHttp.readyState == 4) {
            if (xmlHttp.status == 200) {

                  var name = xmlHttp.responseXML.getElementsByTagName("title"

[0].firstChild.data;
setNames(xmlHttp.responseXML.getElementsByTagName("title"

);
            } else if (xmlHttp.status == 204){
                  clearNames();

            }
         }
      }

      function setNames(the_names) {
         clearNames();
         var size = the_names.length;
         setOffsets();

         var row, cell, txtNode;
         for (var i = 0; i < size; i++) {
            var nextNode = the_names.firstChild.data;
            row = document.createElement("tr";
            cell = document.createElement("td";

            cell.onmouseout = function() {this.className='mouseOver';};
            cell.onmouseover = function() {this.className='mouseOut';};
            cell.setAttribute("bgcolor", "#FFFAFA";
            cell.setAttribute("border", "0";
            cell.onclick = function() { populateName(this); } ;

            txtNode = document.createTextNode(nextNode);
            cell.appendChild(txtNode);
            row.appendChild(cell);
            nameTableBody.appendChild(row);

         }
      }

      function setOffsets() {
         var end = inputField.offsetWidth;
         var left = calculateOffsetLeft(inputField);
         var top = calculateOffsetTop(inputField) + inputField.offsetHeight;

         completeDiv.style.border = "black 1px solid";
         completeDiv.style.left = left + "px";
         completeDiv.style.top = top + "px";
         nameTable.style.width = end + "px";
      }

      function calculateOffsetLeft(field) {
      return calculateOffset(field, "offsetLeft");
      }

      function calculateOffsetTop(field) {
      return calculateOffset(field, "offsetTop");
      }

      function calculateOffset(field, attr) {
      var offset = 0;
      while(field) {
         offset += field[attr];
         field = field.offsetParent;
      }
      return offset;
      }

      function populateName(cell) {
         inputField.value = cell.firstChild.nodeValue;
         clearNames();
      }
  function clearNames() {
   var ind = nameTableBody.childNodes.length;
   for (var i = ind - 1; i >= 0 ; i--) {
   nameTableBody.removeChild(nameTableBody.childNodes);
   }
completeDiv.style.border = "none";
  }
  </script>
  </head>

  <body>
<h3>Ajax Auto Complete Example</h3>
请输入名称：<input type="text" name="title" id="title" size="30" width="100" height="20" onkeyup="findNames();">
<div style="position:absolute;" id="popup">
      <table id="name_table" bgcolor="#FFFAFA" border="0" cellspacing="0" cellpadding="0"/>
         <tbody id="name_table_body"></tbody>
      </table>
</div>
  </body>
</html>

zhour560 · 发表于 2006-9-14 16:58

/*
* Generated by MyEclipse Struts
* Template path: templates/java/JavaClass.vtl
*/
package com.rain.struts.action;

import java.io.IOException;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.util.Iterator;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.actions.DispatchAction;
import org.apache.struts.validator.DynaValidatorForm;

import com.rain.bean.ArticleDao;

/**
* MyEclipse Struts
* Creation date: 09-12-2006
*
* XDoclet definition:
* @struts.action parameter="method"
*/
public class ArticleAction extends DispatchAction {
/*
   * Generated Methods
   */

/**
   * Method execute
   * @param mapping
   * @param form
   * @param request
   * @param response
   * @return ActionForward
   */
public ActionForward search(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
DynaValidatorForm articleForm = (DynaValidatorForm)form;

ArticleDao dao=new ArticleDao();
System.out.println("form: "+articleForm.getString("title"

);
Iterator it=dao.findAllName(articleForm.getString("title"

).iterator();

if(it.hasNext()){
PrintWriter out;
try {

response.setContentType("text/xml;charset=UTF-8"

;
response.setHeader("Cache-Control", "no-cache"

;
out = response.getWriter();
out.println("<response>"

;
while(it.hasNext()){
String name=it.next().toString();
out.println("<title>"+name+"</title>"

;
}
out.println("</response>"

;
it=null;
out.close();
} catch (IOException e) {
// TODO 自动生成 catch 块
e.printStackTrace();
}

}else{
response.setStatus(HttpServletResponse.SC_NO_CONTENT);
}
return null;
}
}

zhour560 · 发表于 2006-9-15 08:10

牛人，跑哪去了，快帮我看看呀`~？~？~~~该怎么改呀~？~

zhour560 · 发表于 2006-9-15 10:13

此问题已经解决！！！

jizq_wf · 发表于 2006-9-17 10:10

怎么么解决的？我也有同样的问题呀！可否说一下！

zhour560 · 发表于 2006-9-17 16:54

把前面Ajax里面的escapse换成encodeURI,然后在Action中试用getbyte()方法转化参数。

kandyer0 · 发表于 2009-5-29 00:54

js escape是utf8编码的，所以你要在服务器端加个过滤器: request.setCharactorEncoding("utf8");

justforregister · 发表于 2009-5-29 17:03

原帖由 kandyer0 于 2009-5-29 00:54 发表
js escape是utf8编码的，所以你要在服务器端加个过滤器: request.setCharactorEncoding("utf8");

高

cod0915 · 发表于 2009-6-4 17:54

//在传递中文之前先将其转码
str=encodeURI(encodeURI(str));
//然后在服务器端取的时候进行解码

String str=request.getParameter("str");
str=java.net.URLDecoder.decode(_str,"utf-8").toString();
这样就可以了

iooyoo · 发表于 2009-6-8 10:46

这个比较典型，呵呵