springMVC结合AjaxForm上传文件
最近在项目中需要上传文件文件,之前一直都是form提交的,尝试了一下AjaxForm,感觉还比较好用,写篇随笔mark下,供以后使用。
准备工作:
下载jquery-form.js
相关jar:
commons-fileupload-1.1.1.jar
commons-io-1.3.2.jar
在spring-servlet.xml进行multipartResolver配置:
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="defaultEncoding" value="utf-8" /> <property name="maxUploadSize" value="10485760000" /> <property name="maxInMemorySize" value="40960" /> </bean>
这个是必须的,否则不好用。
页面:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" session="false" %> <html> <!-- - Author(s): xieshuang - Date: 2016-06-20 13:46:20 - Description: --> <head> <title>Title</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"/> <script src="<%=request.getContextPath()%>/common/nui/nui.js" type="text/javascript"></script> <script src="<%=request.getContextPath()%>/common/nui/jquery/jquery-form.js" type="text/javascript"></script> <script type="text/javascript" src="<%=request.getContextPath()%>/page4nui/master/projecttype/js/projecttype_import.js"></script> <script type="text/javascript"> var contextPath="<%=request.getContextPath()%>"; </script> </head> <body> <div id="test" class="nui-fit" style="padding-top:5px;min-width:300px;min-height:180px;"> <form id="fileUpload" method="post" enctype="multipart/form-data"> <div id="dataImport" style="width:100%;overflow:hidden;"> <table style="width:100%;table-layout:fixed;" class="nui-form-table" > <tr> <th align="right" style="width:25%" >选择文件:</th> <td> <input id="uploadFile" type="file" name="file" style="width:90%;"><font style="color:red;width:5%;"> *</font> </td> </tr> </table> </div> <div style="width:100%;padding-top:10px;" align="center"> <input style="width:60px;" iconCls="icon-ok" value="确定" type="submit" /> <span style="display:inline-block;width:25px;"></span> <a class="nui-button" iconCls="icon-cancel" style="width:60px;" onclick="cancel">取消</a> </div> </form> </div> </body> </html>
核心js:
var msg; $(function(){ nui.parse(); //ajax配置 var options = { url: contextPath+"/webapp/cfProjectType/importExcel", beforeSubmit: showRequest, //提交前处理 success: showResponse, //处理完成 resetForm: true, dataType: 'json' }; $('#fileUpload').submit(function() { //注意 $(this).ajaxSubmit(options); return false;//防止dialog 自动关闭 }); }) //执行成功回调函数 function showResponse(e) { nui.hideMessageBox(msg); if (e.importFlag == true) { CloseWindow("ok"); } else { //对错误的一些处理 } } //提交前的一些校验 function showRequest(formData, jqForm, options){ if(formData[0].value=="" || formData[0].value==null){ nui.alert("请选择文件"); return false; } var fileName = $("#uploadFile").val().split("\\").pop(); var strs = new Array(); //定义一数组 strs = fileName.split('.'); var suffix = strs [strs .length - 1]; if (suffix != 'xls' && suffix != 'xlsx') { nui.alert("请选择excel文件!"); return false; } msg = nui.loading("Loading", "Please waiting"); }
java代码:
@SuppressWarnings("unchecked") @RequestMapping("/webapp/cfProjectType/importExcel") @ResponseBody public Map<String, Object> importExcel(@RequestParam("file") MultipartFile[] files, HttpServletRequest request) throws Throwable { //long starttiem = System.currentTimeMillis(); InputStream fis; fis = null; File fileIn = null; try { for (MultipartFile myfile : files) { if (!myfile.isEmpty()) { String realPath = request.getSession().getServletContext().getRealPath("/export"); fileIn = new File(realPath); //判断上传文件的保存目录是否存在 if (!fileIn.exists() && !fileIn.isDirectory()) { //创建目录 fileIn.mkdirs(路径); } //将上传的文件复制到文件夹下 myfile.transferTo(new File(路径+文件名)); } } }
这里我之前用过另外一个方法FileUtils.copyInputStreamToFile(InputStream arg0, File arg1)同样能将文件保存到路径下面
更多精彩内容请参考专题《ajax上传技术汇总》,《javascript文件上传操作汇总》和《jQuery上传操作汇总》进行学习。
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持安科网。
相关推荐
TONIYH 2020-02-20
wuxhyou 2015-04-11
adgjlxxx 2016-12-23
RanQi0 2016-04-21
wcqwcq 2016-12-23
sunnyishere 2015-12-21
mmywcoco 2015-11-23
dalong 2015-11-21
shumark 2015-11-19
liyifan 2015-04-11
roodyszz0 2014-03-06
lpch0 2013-01-05
longshengguoji 2012-12-26
欧阳凯少 2012-11-16
hugebait 2012-11-14
清闲居 2019-06-20
lpch0 2012-05-29
sunnyishere 2012-05-29
WillZhang 2011-10-24