<p>本文实例讲述了jsp+ajax实现无刷新上传文件的方法。分享给大家供大家参考，具体如下：</p>
<p>列表页：selectaddress.jsp<br>
js页：ajax_edit.js<br>
jsp处理页：editaddress.jsp<br>
上传工具类：UploadUtil.java</p>
<p><img alt="" src="https://beijingoptbbs.oss-cn-hangzhou.aliyuncs.com/jb/2426819-1accdfb426503ea952fe9da76e4300e8"></p>
<p>思想：由于安全问题，javascript操纵不了文件， 导致ajax不能动态上传文件，所以选择了iframe，</p>
<p>列表页把form表单提交到一个隐式的iframe里面，设置表单的属性</p><div class="codetitle"><span><a class="copybut" data="9428" id="copybut9428"><u>复制代码</u></a></span> 代码如下:</div><div class="codebody" id="code9428">enctype='multipart/form-data' target='hidden_frame'</div><p><br>
然后，处理页处理后返回</p><div class="codetitle"><span><a class="copybut" data="1142" id="copybut1142"><u>复制代码</u></a></span> 代码如下:</div><div class="codebody" id="code1142">out.println('<script>parent.callback(" 返回值 ")</script>');</div>
<p>列表页执行回调函数！</p>
<p>selectaddress.jsp</p>
<div class="blockcode">
<pre class="brush:java;">
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="com.wap3.navigater.service.*" %>
<%@ page import="com.wap3.navigater.dao.*" %>
<%@ page import="com.wap3.navigater.pojo.*" %>
<%@ page import="com.wap3.navigater.util.*" %>
<%@ page import="java.util.*" %>
<%@ page import="java.text.*" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script type="text/javascript" src="../js/jquery.js"></script>
<script type="text/javascript" src="../js/ajax_edit.js"></script>
<script type="text/javascript" src="../js/jquery.jclock.js"></script>
<script type="text/javascript" src="../js/common.js"></script>
<script type="text/javascript" src="../js/jquery.form.js"></script>
<script type="text/javascript" src="../js/fileTypeJudge.js"></script>
<script type="text/javascript" src="../js/jquery.datepick.js"></script>
<script type="text/javascript" src="../js/jquery.datepick-zh-CN.js"></script>
<link media=all href="../css/common.css" type=text/css rel=stylesheet>
<title>Insert title here</title>
<style type="text/css">
@import "inc/jquery.datepick.css";
</style>
<script type="text/javascript">
var $imgthis;
$(function(){
var oldValue;
$(".package_list .edit").bind("dblclick",function(){
oldValue = $(this).text();
$(this).ajax_edit("editaddress.jsp",oldValue);
});
$(".package_list .edit_img").bind("dblclick",function(){ //
oldValue = $(this).html();
$imgthis = $(this);
$(this).parents("tr.package_list").siblings(".package_list").find(":input.cancel").trigger("click");
$(this).ajax_edit_img("editaddress.jsp",oldValue);
});
$(".package_list .edit :input[type!=file]:visible").live("blur",function(){
$(this).ajax_handle("editaddress.jsp?action=edit",oldValue);
});
$("#editcategoryName").live("change",function(){
$(this).ajax_handle("editaddress.jsp?action=edit",oldValue);
});
$("#del").click( function () {
if($(":checkbox.urlid:checked").size()>0){
var result = confirm("不可恢复的操作:确定要吗？"+ '\n' +"提示：如果删除大类会删除大类及下面的子类！！！");
if (result) {
var url = location.href;
alert(url);
return ;
$(".main_table").wrap("<form id='selectAddressForm' action='selectaddress.jsp?action=del' method='post'></form>");
$("#selectAddressForm").submit();
}
}else{
alert("请选择要删除的项目！");
return false;
}
});
});
function callback(msg) //处理JSP回调 过来的参数
{
$imgthis.html("<img class='logo' src='"+msg+"' title='"+msg+"' />");
}
</script>
</head>
<body>
<%
String action = ParameterUtil.getStringParameter(request,"action","");
FriendurlDao friendurlDao = new IbatisFriendurlDao();
if("del".equals(action)){
int[] urlids = ParameterUtil.getIntArrayParams(request,"urlid");
for(int urlid : urlids){
friendurlDao.deleteFriendurlByP(urlid);
}
}
String navigaterPage = request.getRequestURL().toString();
if(request.getQueryString()!= null){
navigaterPage += "?"+request.getQueryString();
}
int categoryId = ParameterUtil.getIntParameter(request,"categoryId",0);
if(categoryId == 0){
response.sendRedirect("selectcategory.jsp");
return;
}
int pageSize = ParameterUtil.getIntParameter(request,"pageSize",10);
int pageNo = ParameterUtil.getIntParameter(request,"pageNo",1);
String orderBy = ParameterUtil.getStringParameter(request,"orderBy","sequence");
int ascOrDesc = ParameterUtil.getIntParameter(request,"ascOrDesc",0);
CategoryDao categoryDao = new IbatisCategoryDao();
Category category = categoryDao.selectCategoryByP(categoryId);
String categoryName = category.getCategoryName();
Friendurl friendurl = new Friendurl();
friendurl.setCategoryId(categoryId);
friendurl.addOrderBy(orderBy,ascOrDesc);
List<Friendurl> friendurlList = friendurlD |
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