Ajax表单提交插件jquery form
Ajax表单提交插件jquery form
表单验证阻止提交表单
XML/HTML Code
- <div id="main">
- <div class="demo">
- <form id="my_form" action="submit.php" method="post">
- <p>姓名:<input type="text" name="uname" id="uname" class="input"></p>
- <p>性别:<input type="radio" name="sex" value="1" checked> 男 <input type="radio" name="sex" value="2"> 女 </p>
- <p>年龄:<input type="text" name="age" id="age" class="input" style="width:50px"></p>
- <p style="margin-left:30px"><input type="submit" class="btn" value="提交"><span id="msg"></span></p>
- </form>
- <div id="output"></div>
- </div>
- </div>
JavaScript Code
- <script type="text/javascript">
- $(function(){
- var options = {
- // target: '#output', // target element(s) to be updated with server response
- beforeSubmit: showRequest, // pre-submit callback
- success: showResponse, // post-submit callback
- resetForm: true,
- dataType: 'json'
- // other available options:
- //url: url // override for form's 'action' attribute
- //type: type // 'get' or 'post', override for form's 'method' attribute
- //dataType: null // 'xml', 'script', or 'json' (expected server response type)
- //clearForm: true // clear all form fields after successful submit
- //resetForm: true // reset the form after successful submit
- // $.ajax options can be used here too, for example:
- //timeout: 3000
- };
- // bind to the form's submit event
- $('#my_form').submit(function() {
- // inside event callbacks 'this' is the DOM element so we first
- // wrap it in a jQuery object and then invoke ajaxSubmit
- $(this).ajaxSubmit(options);
- // !!! Important !!!
- // always return false to prevent standard browser submit and page navigation
- return false;
- });
- });
- // pre-submit callback
- function showRequest(formData, jqForm, options) {
- var uname = $("#uname").val();
- if(uname==""){
- $("#msg").html("姓名不能为空!");
- return false;
- }
- var age = $("#age").val();
- if(age==""){
- $("#msg").html("年龄不能为空!");
- return false;
- }
- $("#msg").html("正在提交...");
- return true;
- }
- // post-submit callback
- function showResponse(responseText, statusText) {
- $("#msg").html('提交成功');
- var sex = responseText.sex==1?"男":"女";
- $("#output").html("姓名:"+responseText.uname+" 性别:"+sex+" 年龄:"+responseText.age);
- // for normal html responses, the first argument to the success callback
- // is the XMLHttpRequest object's responseText property
- // if the ajaxSubmit method was passed an Options Object with the dataType
- // property set to 'xml' then the first argument to the success callback
- // is the XMLHttpRequest object's responseXML property
- // if the ajaxSubmit method was passed an Options Object with the dataType
- // property set to 'json' then the first argument to the success callback
- // is the json data object returned by the server
- //alert('status: ' + statusText + '\n\nresponseText: \n' + responseText +
- // '\n\nThe output div should have already been updated with the responseText.');
- }
- </script>
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