文件上传及解压
前段时间遇到需求，.gz压缩文件上传及解压：
其中ajaxFileUplad文件上传需要ajaxfileupload.js文件
ajaxfileupload.js如下：
// JavaScript Document
jQuery.extend({
createUploadIframe: function(id, uri)
{
//create frame
var frameId = 'jUploadFrame' + id;
if(window.ActiveXObject) {
if(jQuery.browser.version=="9.0") {
io = document.createElement('iframe');
io.id = frameId;
io.name = frameId;
} else if(jQuery.browser.version=="6.0"||jQuery.browser.version=="7.0"||jQuery.browser.version=="8.0") {
var io = document.createElement('<iframe id="' + frameId + '" name="' + frameId + '" />');
if(typeof uri== 'boolean'){
io.src = 'javascript:false';
}
else if(typeof uri== 'string'){
io.src = uri;
}
}
}
else {
var io = document.createElement('iframe');
io.id = frameId;
io.name = frameId;
}
io.style.position = 'absolute';
io.style.top = '-1000px';
io.style.left = '-1000px';
document.body.appendChild(io);
return io;
},
createUploadForm: function(id, fileElementId)
{
//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>');
var oldElement = jQuery('#' + fileElementId);
var newElement = jQuery(oldElement).clone();
jQuery(oldElement).attr('id', fileId);
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 = s.fileElementId;
var form = jQuery.createUploadForm(id, s.fileElementId);
var io = jQuery.createUploadIframe(id, s.secureuri);
var frameId = 'jUploadFrame' + id;
var formId = 'jUploadForm' + id;
if( s.global && ! jQuery.active++ )
{
// Watch for a new set of requests
jQuery.event.trigger( "ajaxStart" );
}
var requestDone = false;
// Create the request object
var xml = {};
if( s.global )
{
jQuery.event.trigger("ajaxSend", [xml, s]);
}
var uploadCallback = function(isTimeout)
{
// Wait for a response to come back
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( s.success )
{
// ifa local callback was specified, fire it and pass it the data
s.success( data, status );
};
if( s.global )
{
// Fire the global callback
jQuery.event.trigger( "ajaxSuccess", [xml, s] );
};
} else
{
jQuery.handleError(s, xml, status);
}
} catch(e)
{
status = "error";
jQuery.handleError(s, xml, status, e);
};
if( s.global )
{
// The request was completed
jQuery.event.trigger( "ajaxComplete", [xml, s] );
};
// Handle the global AJAX counter
if(s.global && ! --jQuery.active)
{
jQuery.event.trigger("ajaxStop");
};
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(){
if( !requestDone )
{
// Check to see ifthe request is still happening
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)
{
form.encoding = 'multipart/form-data';
}
else
{
form.enctype = 'multipart/form-data';
}
jQuery(form).submit();
} catch(e)
{
jQuery.handleError(s, xml, null, e);
}
if(window.attachEvent){
document.getElementById(frameId).attachEvent('onload', uploadCallback);
}
else{
document.getElementById(frameId).addEventListener('load', uploadCallback, false);
}
return {abort: function () {}};
},
uploadHttpData: function( r, type ) {
var data = !type;
data = type == "xml" || data ? r.responseXML : r.responseText;
// ifthe type is "script", eval it in global context
if( type == "script" )
{
jQuery.globalEval( data );
}
// Get the JavaScript object, ifJSON is used.
if( type == "json" )
{
eval( "data = " + data );
}
// evaluate scripts within html
if( type == "html" )
{
jQuery("<div>").html(data).evalScripts();
}
return data;
}
});
前台html需要引入ajaxfileupload.js文件，代码如下：
<script src="<%=request.getContextPath()%>/common/resource/js/ajaxfileupload.js" type="text/javascript"></script>
<script type="text/javascript">
var path = "<%=request.getContextPath()%>";
var role = "<%=request.getSession().getAttribute("role")%>";
</script>
前台html代码如下：
<div id="mainDiv_4G" style="height: 342px; ">
<div style="height: 40px;border: 1px solid #4C9ED9;"><center><span id="loggingLabel">MR数据配置</span></center></div>
<div id="mrdiv"><label id="mrlableId">MR数据配置：</label>
<input type="file" name="myfiles" id="uploadify" multiple="multiple" />
<input id="fileButton" type="button" value="上传" onclick="improtMessage()" />
<input id="fileButton" type="button" value="入库" onclick="pressMREGZIP()" />
<label id="warning" style="font-size: 118%;color: #F00;margin-left: 8px;position: absolute;margin-top: 11px;"></label>
</div>
</div>
前台js代码如下：
/**
* 导入mr配置
*/
function improtMessage() {
$("#warning").html("");
var ss = document.getElementById("uploadify").files;//js中取到其中对象
// var fileName=$("#uploadify")[0].files[0].name;
if((ss.length)!=0){
$("#warning").html("文件正在上传中，请耐心等待！！");
$.messager.confirm('提示','确定您要导入配置？',function(r){
if (r){
// $('#uploadify').attr("name",$('#uploadify').val());
$.ajaxFileUpload({
url: path+'/systemConfigureController/importMRData.do',
secureuri: false,//异步
fileElementId: 'uploadify',//上传控件ID
dataType: 'text',//返回的数据信息格式
success: function(data){
if(data == "<pre>true</pre>"){
$("#warning").html("文件上传成功！");
}
}
})
}
});
}else{
$.messager.alert('提示',"请先选择文件！！");
}
}
后台controller代码如下：
/**
* 导入MD数据配置
* @param request
* @param response
* @throws IOException
*/
@RequestMapping("importMRData")
public void importMRData(HttpServletRequest request, HttpServletResponse response, @RequestParam MultipartFile[] myfiles) throws IOException {
logger.info("**********into method importData*************");
boolean isTrue = false;
// 设置上下文
// MultipartFile myfile = myfiles[1];
// System.out.println("name="+myfile.getName()+",size="+ myfile.getSize()+ ",OriginalFilename="+ myfile.getOriginalFilename() );
InputStream is = null;
FileOutputStream output = null;
String savePath = null;
for(int i=0;i<myfiles.length;i++){
MultipartFile myfile = myfiles[i];
String myfileName = myfile.getOriginalFilename();
try {
is = myfile.getInputStream();//MultipartFile转成输入流FileOutputStream
if(myfileName.contains("MRE")){
// savePath = "E:\\MRE\\"+ myfile.getOriginalFilename();
savePath = "/sdb/mre/"+ myfile.getOriginalFilename();
}
if(myfileName.contains("MRS")){
// savePath = "E:\\MRS\\"+ myfile.getOriginalFilename();
savePath = "/sdb/mrs/"+ myfile.getOriginalFilename();
}
if(myfileName.contains("MRO")){
// savePath = "E:\\MRO\\"+ myfile.getOriginalFilename();
savePath = "/sdb/mro/"+ myfile.getOriginalFilename();
}
output = new FileOutputStream(savePath);
byte[] b = new byte[1024];
while (is.read(b) != -1) {
output.write(b);
b = new byte[1024];
}
} catch (IOException e) {
response.getWriter().print(isTrue);
}
}
try {
isTrue = true;
response.getWriter().print(isTrue);
} catch (IOException e1) {
e1.printStackTrace();
}
try {
output.close();
is.close();
} catch (IOException e) {
e.printStackTrace();
}
//解压文件
// String mreFileName = "E:\\MRE";
// String mroFileName = "E:\\MRO";
// String mrsFileName = "E:\\MRS";
String mreFileName = "/sdb/mre";
String mrsFileName = "/sdb/mrs";
String mroFileName = "/sdb/mro";
File mrefile = new File(mreFileName);
File[] mrearray = mrefile.listFiles();
File mrofile = new File(mroFileName);
File[] mroarray = mrofile.listFiles();
File mrsfile = new File(mrsFileName);
File[] mrsarray = mrsfile.listFiles();
if(mrearray.length!=0){//解压Mre
boolean isPass = UncompressFileGZIP.doUncompressFile(mrearray);
UncompressFileGZIP.delectFile(mrearray);
}
if(mroarray.length!=0){//解压MRO
boolean isPass = UncompressFileGZIP.doUncompressFile(mroarray);
UncompressFileGZIP.delectFile(mroarray);
}
if(mrsarray.length!=0){//解压MRS
boolean isPass = UncompressFileGZIP.doUncompressFile(mrsarray);
UncompressFileGZIP.delectFile(mrsarray);
}
}
文件解压代码如下：
package com.hrtel.framework.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.GZIPInputStream;
/**
* 文件解压帮助类
* @author hr
*
*/
public class UncompressFileGZIP {
public static boolean doUncompressFile( File[] array) {
boolean isTrue = true;
// File file = new File(path);
// File[] array = file.listFiles(); //列出指定文件夹下的文件
for(int i=0;i<array.length;i++){
if(array[i].isFile()){
String inFileName = array[i].getPath();
if(inFileName.endsWith(".gz")){
try {
System.out.println("Opening the compressed file.");
GZIPInputStream in = null;
try {
in = new GZIPInputStream(new FileInputStream(inFileName));
} catch(FileNotFoundException e) {
System.err.println("File not found. " + inFileName);
isTrue = false;
}
System.out.println("Open the output file.");
String outFileName = getFileName(inFileName);
FileOutputStream out = null;
try {
out = new FileOutputStream(outFileName);
} catch (FileNotFoundException e) {
System.err.println("Could not write to file. " + outFileName);
isTrue = false;
}
System.out.println("Transfering bytes from compressed file to the output file.");
byte[] buf = new byte[1024];
int len;
while((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
System.out.println("Closing the file and stream");
in.close();
out.close();
}
catch (IOException e) {
e.printStackTrace();
}
}else{//其他压缩格式文件
isTrue = false;
}
}
}
return isTrue;
}
public static String getExtension(String f) {
String ext = "";
int i = f.lastIndexOf('.');
if (i > 0 && i < f.length() - 1) {
ext = f.substring(i+1);
}
System.out.println(ext);
return ext;
}
public static String getFileName(String f) {
String fname = "";
int i = f.lastIndexOf('.');
if (i > 0 && i < f.length() - 1) {
fname = f.substring(0,i);
}
return fname;
}
//删除解压后的文件
public static void delectFile(File[] array){
// File file = new File(path);
// File[] array = file.listFiles(); //列出指定文件夹下的文件
for(int i=0;i<array.length;i++){
System.gc();
if(array[i].isFile()){
String inFileName = array[i].getPath();
File f = new File(inFileName); // 输入要删除的文件位置
System.out.println(inFileName);
if(inFileName.endsWith(".gz")){
if(f.exists()){
boolean d = f.delete();
if(d){
System.out.println("删除成功！");
}else{
System.out.println("删除失败！");
}
}
}
}
}
}
}