jQuery插件AjaxFileUpload实现ajax文件上传

jQuery插件AjaxFileUpload用来实现ajax文件上传，该插件使用非常简单，接下来写个demo演示怎么用AjaxFileUpload插件实现文件上传。

1、引入AjaxFileUpload插件相关的js

<script type="text/javascript" src="<%=basePath%>resources/js/jquery-1.2.1.js"></script>
<script type="text/javascript" src="<%=basePath%>resources/js/ajaxfileupload.js"></script>

备注：测试发现，ajaxfileupload对jQuery版本是有要求的，在使用中ajaxfileupload和jQuery对应的js版本要一致，不然会导致异常发生，可以从ajaxfileupload官网下载，避免版本冲突。

2、实现上传功能代码

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ include file="/base.jsp" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>ajax文件上传</title>
    
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <link rel="stylesheet" type="text/css" href="validate/ajaxfileupload.css" />
    <script type="text/javascript" src="validate/jquery-1.6.2.min.js"></script>
    <script type="text/javascript" src="validate/ajaxfileupload.js" ></script>
    <script type="text/javascript">
    $(function(){
       //上传图片
       $("#btnUpload").click(function() {
               alert(ajaxFileUpload());
       });
    });
    function ajaxFileUpload() {
        // 开始上传文件时显示一个图片
        $("#wait_loading").ajaxStart(function() {
            $(this).show();
        // 文件上传完成将图片隐藏起来
        }).ajaxComplete(function() {
            $(this).hide();
        });
        var elementIds=["flag"]; //flag为id、name属性名
        $.ajaxFileUpload({
            url: 'uploadAjax.htm', 
            type: 'post',
            secureuri: false, //一般设置为false
            fileElementId: 'file', // 上传文件的id、name属性名
            dataType: 'text', //返回值类型，一般设置为json、application/json
            elementIds: elementIds, //传递参数到服务器
            success: function(data, status){  
                alert(data);
            },
            error: function(data, status, e){ 
                alert(e);
            }
        });
        //return false;
    }
    </script>
  </head>
  
  <body>
    <div id="wait_loading" style="padding: 50px 0 0 0;display:none;">
        <div style="width: 103px;margin: 0 auto;"><img src="<%=path %>/images/loading.gif"/></div>
        <br></br>
        <div style="width: 103px;margin: 0 auto;"><span>请稍等...</span></div>
        <br></br>
    </div>
    <input type="file" id="file" name="file"><br/>
    <input type="hidden" id="flag" name="flag" value="ajax文件上传"/>
    <input type="button" id="btnUpload" value="上传图片" />
  </body>
</html>

posted on 2014-01-23 11:06 Ruthless 阅读(136038) 评论(9) 编辑收藏举报