weixin_33738578 2011-08-24 03:59 采纳率: 0%
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为什么AJAX代码在PHP中不起作用？

JS 和 HTML:

<html>
<head>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
function load_bkissue(accessid){
   //alert(accessid);   
        $.ajax({
    type: "POST",
    url: "2.php",
    async: false,
    dataType: "json",
    data: "accession_id=" + accessid,
    success: function (response) {
        $("#bkid").val(response.accession_id);
        $("#txtbnam").val(response.title);
        $("#txauth").val(response.author);
        $("#txtcat").val(response.category);
        $("#txtsub").val(response.subject_type);
        //$("#txt_div").val(response.rack_no);
        $("#txtrack").val(response.rack_no);
    }
});
        </script>
</head>
<body>
<table width="260" id="tab" cellpadding="1" cellspacing="10">
        <tr>
            <td width="20px"> AccessionNo </td>
            <td width="400px">
                <select name="bkid" onChange="load_bkissue(this.value)" class="txtbox">
            <option value="1">1 </option>
            <option value="2">2 </option>
            <option value="3">3 </option>
            <option value="4">4 </option>
            <option value="5">5 </option>

                        </select>           </td>
        </tr>
        <tr>
            <td> Title </td>

            <td><input name="txtbnam" id="txtbnam" type="text"  class="txtbox"></td>
        </tr>
        <tr>
            <td> Author </td>
            <td><input name="txauth" id="txauth" type="text" id="txauth" class="txtbox"></td>
        </tr>
        <tr>
            <td> Category </td>

            <td><input name="txtcat" id="txtcat" type="text" id="txtcat"  class="txtbox"></td>
        </tr>
        <tr>
            <td> Subject </td>
            <td><input name="txtsub" id="txtsub" type="text" id="txtsub"  class="txtbox"></td>
        </tr>
        <tr>
            <td> Rack </td>

            <td><input name="txtrack" id="txtrack" type="text" id="txtrack" class="txtbox"></td>
        </tr>
        </table>

</body>
</html>

PHP:

<?php
$json = array(
                'accession_id' => "a",
                'title'        => "b",
                'author'       => "c",
                'category'     => "d",
                'subject_type' => "e",
                'rack_no'      => "f");
echo json_encode($json );
?>

选择AccessionNo时，我需要在每个字段（例如标题，作者等）中使用这些值，但没有任何变化。

  • 写回答

2条回答 默认 最新

  • weixin_33720956 2011-08-24 04:21
    关注

    Your JSON, is...weird. Why not just do it like this:

    <?php
$json = array(
                'accession_id' => "a",
                'title'        => "b",
                'author'       => "c",
                'category'     => "d",
                'subject_type' => "e",
                'rack_no'      => "f");
echo json_encode($json);
?>

    This results in JSON that looks like this (much more sane):

    {
    "accession_id":"a",
    "title":"b",
    "author":"c",
    "category":"d",
    "subject_type":"e",
    "rack_no":"f"
}

    And makes your javascript much simpler:

    $.ajax({
    type: "POST",
    url: "http://temp.lmfast1/testajax/2.php",
    async: false,
    dataType: "json",
    data: "accession_id=" + accessid,
    success: function (response) {
        $("#bkid").val(response.accession_id);
        $("#txtbnam").val(response.title);
        $("#txauth").val(response.author);
        $("#txtcat").val(response.category);
        $("#txtsub").val(response.subject_type);
        //$("#txt_div").val(response.rack_no);
        $("#txtrack").val(response.rack_no);
    }
});
    评论

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