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標(biāo)題: AJAX的post有問(wèn)題，get沒問(wèn)題！��！ [打印本頁(yè)]
作者: hua9537    時(shí)間: 2011-06-06 12:28
標(biāo)題: AJAX的post有問(wèn)題，get沒問(wèn)題�。�！
我測(cè)試了status和readyState的值都正常，納悶的是get方式傳值卻很正常，幫忙看看怎么回事？

有三個(gè)文件，如下：

1.text.php
  1. <html>
  2. <head>
  3. <script src="clienthint.js"></script>
  4. </head>
  5. <body>
  6. <form>
  7. First Name:
  8. <input type="text" id="txt1">
  9. <input type="button" value="Submit" onClick="showHint()">
  10. </form>
  11. <p>Suggestions: <span id="txtHint"></span></p>
  12. </body>
  13. </html>
復(fù)制代碼
2.clienthint.js
  1. var xmlHttp
  2. function showHint()
  3. {
  4. var str = document.getElementById("txt1").value;
  5. if (str.length==0)
  6.   {
  7.   document.getElementById("txtHint").innerHTML="";
  8.   return;
  9.   }
  10. xmlHttp=GetXmlHttpObject();
  11. if (xmlHttp==null)
  12.   {
  13.   alert ("Browser does not support HTTP Request");
  14.   return;
  15.   }
  16. var url="gethint.php";
  17. var content="qt="+str;
  18. content=content+"&sid="+Math.random();
  19. xmlHttp.open("POST",url,true);
  20. xmlHttp.onreadystatechange=stateChanged;
  21. xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
  22. xmlHttp.send(content);
  23. }

  25. function stateChanged()
  26. {
  27. if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
  28. {
  29. document.getElementById("txtHint").innerHTML=xmlHttp.responseText;
  30. }
  31. }

  33. function GetXmlHttpObject()
  34. {
  35. var xmlHttp=null;
  36. try
  37. {
  38. // Firefox, Opera 8.0+, Safari
  39. xmlHttp=new XMLHttpRequest();
  40. }
  41. catch (e)
  42. {
  43. // Internet Explorer
  44. try
  45.   {
  46.   xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
  47.   }
  48. catch (e)
  49.   {
  50.   xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
  51.   }
  52. }
  53. return xmlHttp;
  54. }
復(fù)制代碼
3.gethint.php
  1. <?php
  2. // Fill up array with names
  3. $a[]="Anna";
  4. $a[]="Brittany";

  6. $q = $_POST["qt"];
  7. if (strlen($q) > 0)
  8. {
  9. $hint="";
  10. for($i=0; $i<count($a); $i++)
  11.   {
  12.   if (strtolower($q)==strtolower(substr($a[$i],0,strlen($q))))
  13.     {
  14.     if ($hint=="")
  15.       {
  16.       $hint=$a[$i];
  17.       }
  18.     else
  19.       {
  20.       $hint=$hint." , ".$a[$i];
  21.       }
  22.     }
  23.   }
  24. }
  25. else echo "q is empty!<br>";
  26. //Set output to "no suggestion" if no hint were found
  27. //or to the correct values
  28. if ($hint == "")
  29. {
  30. $response="no suggestion";
  31. }
  32. else
  33. {
  34. $response=$hint;
  35. }

  37. //output the response
  38. echo $response;
  39. echo " to ";
  40. echo $q;
  41. echo "<br>";
  42. ?>
復(fù)制代碼
作者: hua9537    時(shí)間: 2011-06-07 07:23

沒人頂�。。。�！



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