springmvc + ajaxFileUpload多文件上传

来源：互联网发布：mac 怎么恢复u盘的文件编辑：程序博客网时间：2024/04/30 19:44

uploadfile.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!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="<%=request.getContextPath()%>/js/jquery-1.7.2.min.js"></script>
<script type="text/javascript" src="<%=request.getContextPath()%>/js/ajaxfileupload.js"></script>
<title>上传文件</title>
</head>
<body>
第一种解析上传文件的方法<hr/>


<input type="file" id="file1" />
<input type="file" id="file2" />
<input type="button" onclick="upload();" value="上传" />

</body>
</html>

<script type="text/javascript">

function upload(){
var arrId = [];
arrId[0] = "file1";
arrId[1] = "file2";

$.ajaxFileUpload({
type:'post',
url : 'UploadFile',
secureuri : false,
//data : data,//需要传递的数据 json格式
fileElementId :arrId,
dataType : 'json',
success : function(data) {
//上传成功后的回调。
},
error : function(data) {
}
});
}

</script>

提交后台controller处理

/**
* 1、最原始的输入输出流复制文件
*/
@RequestMapping(value = "/UploadFile", method = { RequestMethod.POST })
@ResponseBody
public String parserUploadFile1(HttpServletRequest request,
HttpServletResponse response,UploadFile uploadFile) throws IOException {
CommonsMultipartResolver resolver = new CommonsMultipartResolver(request.getSession().getServletContext());
if (resolver.isMultipart(request)) {
MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest) request;
// 取得request中的所有文件名
Iterator<String> iter = multiRequest.getFileNames();
while (iter.hasNext()) {
String fileName = iter.next();
// 取得上传文件
MultipartFile files = multiRequest.getFile(fileName);
/**
* 获取文件名
*/
String originalFilename = files.getOriginalFilename();
// System.out.println("取得上传文件fileName"+fileName);
System.out.println("文件名originalFilename:"+originalFilename);
}
}

return "success";
}

注意：要上传多文件，必须修改ajaxfileupload的库，把下面的代码替换了你的ajaxfileupload文件中的内容

jQuery.extend({

createUploadIframe: function(id, uri)
{
//create frame
var frameId = 'jUploadFrame' + id;
var iframeHtml = '<iframe id="' + frameId + '" name="' + frameId + '" style="position:absolute; top:-9999px; left:-9999px"';
if(window.ActiveXObject)
{
if(typeof uri== 'boolean'){
iframeHtml += ' src="' + 'javascript:false' + '"';

}
else if(typeof uri== 'string'){
iframeHtml += ' src="' + uri + '"';

}
}
iframeHtml += ' />';
jQuery(iframeHtml).appendTo(document.body);

return jQuery('#' + frameId).get(0);
},
createUploadForm: function(id, fileElementId, data)
{
//create form
var formId = 'jUploadForm' + id;
var fileId = 'jUploadFile' + id;
var form = jQuery('<form action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>');
if (data) {
for ( var i in data) {
jQuery(
'<input type="hidden" name="' + i + '" value="'
+ data[i] + '" />').appendTo(form);
}
}
for (var i = 0; i < fileElementId.length; i ++) {
var oldElement = jQuery('#' + fileElementId[i]);
var newElement = jQuery(oldElement).clone();
jQuery(oldElement).attr('id', fileElementId[i]);
jQuery(oldElement).attr('name', fileElementId[i]);
jQuery(oldElement).before(newElement);
jQuery(oldElement).appendTo(form);
}
//set attributes
jQuery(form).css('position', 'absolute');
jQuery(form).css('top', '-1200px');
jQuery(form).css('left', '-1200px');
jQuery(form).appendTo('body');
return form;
},
ajaxFileUpload: function(s) {
// TODO introduce global settings, allowing the client to modify them for all requests, not only timeout
s = jQuery.extend({}, jQuery.ajaxSettings, s);
var id = new Date().getTime()
var form = jQuery.createUploadForm(id, s.fileElementId, (typeof(s.data)=='undefined'?false:s.data));
var io = jQuery.createUploadIframe(id, s.secureuri);
var frameId = 'jUploadFrame' + id;
var formId = 'jUploadForm' + id;
// Watch for a new set of requests
if ( s.global && ! jQuery.active++ )
{
jQuery.event.trigger( "ajaxStart" );
}
var requestDone = false;
// Create the request object
var xml = {}
if ( s.global )
jQuery.event.trigger("ajaxSend", [xml, s]);
// Wait for a response to come back
var uploadCallback = function(isTimeout)
{
var io = document.getElementById(frameId);
try
{
if(io.contentWindow)
{
xml.responseText = io.contentWindow.document.body?io.contentWindow.document.body.innerHTML:null;
xml.responseXML = io.contentWindow.document.XMLDocument?io.contentWindow.document.XMLDocument:io.contentWindow.document;

}else if(io.contentDocument)
{
xml.responseText = io.contentDocument.document.body?io.contentDocument.document.body.innerHTML:null;
xml.responseXML = io.contentDocument.document.XMLDocument?io.contentDocument.document.XMLDocument:io.contentDocument.document;
}
}catch(e)
{
jQuery.handleError(s, xml, null, e);
}
if ( xml || isTimeout == "timeout")
{
requestDone = true;
var status;
try {
status = isTimeout != "timeout" ? "success" : "error";
// Make sure that the request was successful or notmodified
if ( status != "error" )
{
// process the data (runs the xml through httpData regardless of callback)
var data = jQuery.uploadHttpData( xml, s.dataType );
// If a local callback was specified, fire it and pass it the data
if ( s.success )
s.success( data, status );

// Fire the global callback
if( s.global )
jQuery.event.trigger( "ajaxSuccess", [xml, s] );
} else
jQuery.handleError(s, xml, status);
} catch(e)
{
status = "error";
jQuery.handleError(s, xml, status, e);
}

// The request was completed
if( s.global )
jQuery.event.trigger( "ajaxComplete", [xml, s] );

// Handle the global AJAX counter
if ( s.global && ! --jQuery.active )
jQuery.event.trigger( "ajaxStop" );

// Process result
if ( s.complete )
s.complete(xml, status);

jQuery(io).unbind()

setTimeout(function()
{ try
{
jQuery(io).remove();
jQuery(form).remove();

} catch(e)
{
jQuery.handleError(s, xml, null, e);
}

}, 100)

xml = null

}
}
// Timeout checker
if ( s.timeout > 0 )
{
setTimeout(function(){
// Check to see if the request is still happening
if( !requestDone ) uploadCallback( "timeout" );
}, s.timeout);
}
try
{

var form = jQuery('#' + formId);
jQuery(form).attr('action', s.url);
jQuery(form).attr('method', 'POST');
jQuery(form).attr('target', frameId);
if(form.encoding)
{
jQuery(form).attr('encoding', 'multipart/form-data');
}
else
{
jQuery(form).attr('enctype', 'multipart/form-data');
}
jQuery(form).submit();

} catch(e)
{
jQuery.handleError(s, xml, null, e);
}

jQuery('#' + frameId).load(uploadCallback );
return {abort: function () {}};

},

uploadHttpData: function( r, type ) {
alert("type is " + type);
var data = !type;
alert("data1 is " + data);
data = type == "xml" || data ? r.responseXML : r.responseText;
// If the type is "script", eval it in global context
if ( type == "script" )
jQuery.globalEval( data );
// Get the JavaScript object, if JSON is used.
if ( type == "json" ) {
alert("in json,data is " + data);
eval( "data = " + data );
}
// evaluate scripts within html
if ( type == "html" )
jQuery("<div>").html(data).evalScripts();

return data;
}
});

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