编程 Javascript

jquery的ajaxSubmit()异步上传图片并保存表单数据演示代码

Posted in Javascript onJune 04, 2013

(jsp需要引入：jquery-1.9.0.js、jquery.form.js ) ，jsp页面使用的是bootstrap制作的，看不懂的标签不用管，form表单大同小异。代码比较简陋，只是为了演示使用ajaxSubmit异步上传图片及保存数据，请海含！
(参考文献：https://3water.com/shouce/jquery/jquery_api/Plugins/Form/ajaxSubmit.html)
一：web (add.jsp)

<%@page import="com.fingerknow.project.vo.UserInformation"%> 
<%@ page language="java" contentType="text/html; charset=utf-8" 
pageEncoding="utf-8"%> 
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> 
<c:set var="ctx" value="${pageContext.request.contextPath }" /> 
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 
<title>注册商圈</title> 
<link href="${ctx}/bootstrap/css/bootstrap.css" rel="stylesheet"> 
<link href="${ctx}/bootstrap/css/bootstrap-responsive.css" rel="stylesheet"> 
<link rel="stylesheet" href="${ctx}/css/bootstrap-responsive.min.css" /> 
<link rel="stylesheet" href="${ctx}/css/jquery-ui.css" /> 
<link rel="stylesheet" href="${ctx}/css/uniform.css" /> 
<link rel="stylesheet" href="${ctx}/css/select2.css" /> 
<link rel="stylesheet" href="${ctx}/css/unicorn.main.css" /> 
<link rel="stylesheet" href="${ctx}/css/common.css" /> 
<% 
response.setCharacterEncoding("utf-8");//这个是设置编码方式 
response.setContentType("text/html");//这个是设置网页类型，为文本代码 
UserInformation user=null; 
String username=""; 
Integer userId=null; 
if(request.getSession().getAttribute("userinfo")!=null){ 
user=(UserInformation)request.getSession().getAttribute("userinfo"); 
username=user.getUsername(); 
userId=user.getUserId(); 
}else{ 
username="请<a href='http://localhost:8080/fk/test/login.jsp'>登录</a>"; 
} 
%> 
</head> 
<body> 
<div class="header-inner"> 
<div class="container"> 
<div class="row"> 
<div class=" page-header clearfix"> 
<div class="span11"> <h1 class="page-header" style="background:black;"><img alt="fingerknow" src="${ctx}/images/fingerknow.png" width=""><small>中文最大的购物经验分享平台</small></h1> </div> 
<div class="span1"> <a href="#">首页</a> |<a href="#">帮助</a></div> 
</div> 
</div> 
</div> 
</div> 
<div class="container" id="businessEname_div"> 
<div class="row"> 
<div class="span1"></div> 
<div class="span10"> 
<div class="widget-box"> 
<div class="widget-title"> 
<span class="icon"> 
<i class="icon-align-justify"></i> 
</span> 
<h5>注册商圈</h5> 
</div> <div class="widget-content nopadding"> 
<form class="form-horizontal" method="post" action="${ctx}/upload/upload.do" id="uploadImgForm" enctype="multipart/form-data"> 
<div class="control-group" style="border: 0px solid red;"> 
<label class="control-label">*商圈名：</label> 
<div class="controls" style="width: 350px;border: 0px solid red;vertical-align: middle;" > 
<input type="text" name="businessName" maxlength="20" id="businessName" width="200px;"/> 
<input type="text" name="userId" maxlength="20" value="<%=userId%>" id="userId" width="200px;"/> 
<div id="businessName_error" ></div> 
</div> 
</div> 
<div class="control-group"> 
<label class="control-label">*商圈logo：</label> 
<div class="controls" style="width:350px;"> 
<input type="file" name="file" id="file"> 
<div id="file_error"></div> 
</div> 
</div> 
<div class="control-group"> 
<label class="control-label">*商圈英文名：</label> 
<div class="controls" style="width: 350px;"> 
<input type="text" name="businessEname" id="businessEname" /> 
<div id="businessEname_error"></div> 
</div> 
</div> 
<div class="form-actions"> 
<button type="button" id="imgSave" value="Validate" class="btn btn-primary">提交注册</button> 
</div> 
</form> 
</div> 
</div> 
</div> 
<div class="span1"></div> 
</div> 
</div> 
<div class="container" style="background:white;"> 
<div class="row"> 
<div class="span12" style="margin-left: 25%;"> 
<p>© 2012 fingerknow.com <span>|</span><a href="#" rel="nofollow" >隐私条款</a><span>|</span><a href="#" rel="nofollow">服务条款</a><span>|</span><a href="#" rel="nofollow" >粤ICP备12003619号-1</a></p> 
</div> 
</div> 
</div> 
<script src="${ctx}/js/jquery-1.9.0.js"></script> 
<script src="${ctx}/js/jquery.form.js"></script> 
<script type="text/javascript"> 
/** 
* 
* V1.0 
*/ 
$(document).ready(function() { 
//验证商圈名 
$("#businessName").blur(function(){ 
var businessName=$("#businessName").val(); 
if(businessName!=""){ 
$("#businessName_error").html("<img src='${ctx}/images/success_img.gif' style='width:15px;height:15px;'/>"); 
}else{ 
$("#businessName_error").attr("class","error_div").html("<img src='${ctx}/images/error_img2.gif' style='width:15px;height:15px;'/>"+"商圈名不能为空！"); 
} 
}); 
//验证商圈英文名 
$("#businessEname").blur(function(){ 
var businessEname=$("#businessEname").val(); 
if(businessEname!=""){ 
$("#businessEname_error").html("<img src='${ctx}/images/success_img.gif' style='width:15px;height:15px;'/>"); 
}else{ 
$("#businessEname_error").attr("class","error_div").html("<img src='${ctx}/images/error_img2.gif' style='width:15px;height:15px;'/>"+"商圈英文名不能为空！"); 
} 
}); 
//图片上传 及数据保存 
$("#imgSave").click(function(){ 
var ext = '.jpg.jpeg.gif.bmp.png.'; 
var f=$("#file").val(); 
if (f== "") {//先判断是否已选择了文件 
$("#file_error").attr("class","error_div").html("<img src='${ctx}/images/error_img2.gif' style='width:15px;height:15px;'/>"+"请添加商圈logo！"); 
return false; 
} 
f = f.substr(f.lastIndexOf('.') + 1).toLowerCase(); 
if (ext.indexOf('.' + f + '.') == -1) { 
$("#file_error").attr("class","error_div").html("<img src='${ctx}/images/error_img2.gif' style='width:15px;height:15px;'/>"+"图片格式不正确！"); 
return false; 
} 
var options = { 
url: "${ctx}/upload/upload.do", 
dataType: 'json', 
contentType: "application/json; charset=utf-8", 
success: function(data) { 
// 'data' is an object representing the the evaluated json data 
// 如果图片上传成功则保存表单注册数据 
if(data.status=="0"){ 
var fileName=data.fileName; 
//alert(fileName); 
var businessName=$("#businessName").val(); 
var userId=$("#userId").val(); 
var businessEname=$("#businessEname").val(); 
businessName=encodeURI(businessName); 
businessName=encodeURI(businessName); 
var urls="${ctx}/business/addBusiness.do?businessName="+businessName+"&businessPic="+fileName+"&businessEname="+businessEname+"&userId="+userId; 
$.ajax({ 
type: "post", 
url:urls , 
dataType: "json", /*这句可用可不用，没有影响*/ 
contentType: "application/json; charset=utf-8", 
success: function (data) { 
if(data.status=="0"){ 
alert("注册成功!"); 
}else{ 
alert("注册失败!原因是："+data.message); 
} 
}, 
error: function (XMLHttpRequest, textStatus, errorThrown) { 
alert(errorThrown); 
} 
}); 
}else{ 
$("#file_error").attr("class","error_div").html("<img src='${ctx}/images/error_img2.gif' style='width:15px;height:15px;'/>"+data.message); 
} 
} 
}; 
// 提交表单 
$('#uploadImgForm').ajaxSubmit(options); 
}); 
}); 
</script> 
</body> 
</html>

二：service(FileUploadController.java ----springMVC 之controller层)

@Controller 
@RequestMapping(value = "/upload") 
public class FileUploadController { 
private Logger logger; 
@RequestMapping(value = "upload.do", method = RequestMethod.POST) 
public void fileUpload(HttpServletRequest request, HttpServletResponse response) { 
Map<String, Object> resultMap = new HashMap<String, Object>(); 
String newRealFileName = null; 
try { 
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request; 
CommonsMultipartFile file = (CommonsMultipartFile) multipartRequest.getFile("file"); 
// 获得文件名： 
String realFileName = file.getOriginalFilename(); 
if(file.getSize()/1024>=5*1024){ 
resultMap.put("status", 1); 
resultMap.put("message", "图片不能大于5M"); 
}else{ 
System.out.println("获得文件名：" + realFileName); 
newRealFileName = FileUploadController.getNowTime() + realFileName.substring(realFileName.indexOf(".")); 
// 获取路径 
String ctxPath = request.getSession().getServletContext().getRealPath("//") + "//temp//"; 
// 创建文件 
File dirPath = new File(ctxPath); 
if (!dirPath.exists()) { 
dirPath.mkdir(); 
} 
File uploadFile = new File(ctxPath + newRealFileName); 
FileCopyUtils.copy(file.getBytes(), uploadFile); 
request.setAttribute("files", loadFiles(request)); 
resultMap.put("status", 0); 
resultMap.put("fileName", newRealFileName); 
} 
} catch (Exception e) { 
resultMap.put("status", 1); 
resultMap.put("message", "图片上传出错"); 
logger.info("***** 图片上传出错 *****"); 
System.out.println(e); 
} finally { 
PrintWriter out = null; 
try { 
out = response.getWriter(); 
} catch (IOException e) { 
e.printStackTrace(); 
} 
//必须设置字符编码，否则返回json会乱码 
response.setContentType("text/html;charset=UTF-8"); 
out.write(JSONSerializer.toJSON(resultMap).toString()); 
out.flush(); 
out.close(); 
} 
} 
}

jquery的ajaxSubmit()异步上传图片并保存表单数据演示代码

声明：登载此文出于传递更多信息之目的，并不意味着赞同其观点或证实其描述。

Javascript 相关文章推荐

用javascript控制iframe滚动的代码

Apr 10 Javascript

javascript之ESC(第二类混淆)

May 06 Javascript

浅谈javascript的数据类型检测

Jul 10 Javascript

基于jquery的地址栏射击游戏代码

Mar 10 Javascript

js multiple全选与取消全选实现代码

Dec 04 Javascript

js实现卡片式项目管理界面UI设计效果

Dec 08 Javascript

Bootstrap中点击按钮后变灰并显示加载中实例代码

Sep 23 Javascript

使用JS读取XML文件的方法

Nov 25 Javascript

jQuery实现限制文本框的输入长度

Jan 11 Javascript

微信小程序左滑删除效果的实现代码

Feb 20 Javascript

vue全局使用axios的方法实例详解

Nov 22 Javascript

Vue 微信端扫描二维码苹果端却只能保存图片问题(解决方法)

Jan 19 Javascript

js调用AJAX时Get和post的乱码解决方法

Jun 04 #Javascript

jQuery调用AJAX时Get和post公用的乱码解决方法实例说明

Jun 04 #Javascript

左侧是表头的JS表格控件(自写,网上没有的)

Jun 04 #Javascript

js判断undefined变量类型使用typeof

Jun 03 #Javascript

如何使用jQUery获取选中radio对应的值(一句代码)

Jun 03 #Javascript

js+css实现增加表单可用性之提示文字

Jun 03 #Javascript

捕获浏览器关闭、刷新事件不同情况下的处理方法

Jun 02 #Javascript