ajax乱码解决

由于ajax数据发送数据编码方式为UTF-8，所以在发送传送汉字是会出现乱码。

 

解决方法：

     （1）jsp页面

    例

          var text=document.getElement("text");

           text=escape(escape(text));

    text 为传送的汉字，escape为javascript自带编码函数

    （2）获取数据的后台java代码

  

public static String unescape(String src)
   {
      StringBuffer tmp = new StringBuffer();
     tmp.ensureCapacity(src.length());
      int lastPos=0,pos=0;
      char ch;
      while (lastPos<src.length())
      {
       pos = src.indexOf("%",lastPos);
       if (pos == lastPos)
        {
        if (src.charAt(pos+1)=='u')
         {
         ch = (char)Integer.parseInt(src.substring(pos+2,pos+6),16);
        tmp.append(ch);
         lastPos = pos+6;
        }
        else
         {
         ch = (char)Integer.parseInt(src.substring(pos+1,pos+3),16);
        tmp.append(ch);
         lastPos = pos+3;
        }
       }
       else
        {
        if (pos == -1)
         {
        tmp.append(src.substring(lastPos));
        lastPos=src.length();
        }
        else
         {
        tmp.append(src.substring(lastPos,pos));
        lastPos=pos;
        }
       }
     }
      return tmp.toString();
  }

public static String unescape(String src)
   {
     StringBuffer tmp = new StringBuffer();
     tmp.ensureCapacity(src.length());
     int lastPos=0,pos=0;
     char ch;
     while (lastPos<src.length())
      {
      pos = src.indexOf("%",lastPos);
      if (pos == lastPos)
        {
       if (src.charAt(pos+1)=='u')
         {
        ch = (char)Integer.parseInt(src.substring(pos+2,pos+6),16);
        tmp.append(ch);
        lastPos = pos+6;
        }
       else
         {
        ch = (char)Integer.parseInt(src.substring(pos+1,pos+3),16);
        tmp.append(ch);
        lastPos = pos+3;
        }
       }
      else
        {
       if (pos == -1)
         {
        tmp.append(src.substring(lastPos));
        lastPos=src.length();
        }
       else
         {
        tmp.append(src.substring(lastPos,pos));
        lastPos=pos;
        }
       }
     }
     return tmp.toString();
  }

 

  unescape 用于解码

  使用   String str=unescape(request.getParameter("text"));

http://shaojiashuai123456.iteye.com/blog/410619