還原文件功能一、目錄21.技術(shù)原理2.效果圖預(yù)覽3.實(shí)現(xiàn)步驟4.功能驗(yàn)證測(cè)試二、技術(shù)原理3（1）視圖層：顯示還原文件界面（2）控制層：接收視圖層的消息，向服務(wù)層發(fā)送文件還原參數(shù)，并將服務(wù)層返回的結(jié)果發(fā)送到視圖層（3）服務(wù)層：調(diào)用swift接口將指定的文件還原到以前的位置，再將回收站的文件刪除，最后將處理結(jié)果返回給控制層三、效果預(yù)覽圖4四、步驟實(shí)現(xiàn)5在cn/edu/sict/cloud/storage/sh/SwiftDFS.java添加如下代碼public

voidbackgarbagefile(StringrootPath,Stringpath,boolean

isDir){if(isDir){backFile(rootPath,path);backDirFile(rootPath,path);}else{backFile(rootPath,path);}}private

voidbackDirFile(StringrootPath,Stringpath){List<?extendsSwiftObject>list=this.list(Constants.GARBAGE_PREFIX+rootPath,path);for(SwiftObjectso:list){StringfilePath=so.getName();this.backFile(rootPath,filePath);if(this.isDirectory(filePath)){//文件夾this.backDirFile(rootPath,filePath);}}}四、步驟實(shí)現(xiàn)6在cn/edu/sict/cloud/storage/sh/SwiftDFS.java添加如下代碼private

voidbackFile(StringrootPath,StringsrcPath){StringgarbagePath=Constants.GARBAGE_PREFIX+rootPath;Map<String,String>meta=os.objectStorage().objects().getMetadata(garbagePath,srcPath);Stringkey="Oldpath";Stringpath=meta.get(key);if(path!=null){try{path=path.replaceAll("%20","\\+");path=URLDecoder.decode(path,"UTF-8");//創(chuàng)建上級(jí)目錄StringBufferprefix=newStringBuffer();String[]dirs=path.split("/");for(int

i=0;i<dirs.length-1;i++){boolean

flag=false;//目錄不存在StringthisDir=dirs[i]+"/";if(i==0){flag=this.isExeist(rootPath,"",thisDir);四、步驟實(shí)現(xiàn)7在cn/edu/sict/cloud/storage/sh/SwiftDFS.java添加如下代碼}else{prefix.append(dirs[i-1]);prefix.append("/");flag=this.isExeist(rootPath,prefix.toString(),prefix+thisDir);}if(!flag){this.createDir(rootPath,prefix+thisDir);}}this.copy(garbagePath,rootPath,srcPath,path);this.delete(garbagePath,srcPath);}catch(UnsupportedEncodingExceptione){e.printStackTrace();}}}四、步驟實(shí)現(xiàn)8在cn/edu/sict/cloud/storage/service/SwiftStorageService.java添加如下代碼public

voidbackgarbagefile(Stringusername,List<Map<String,Object>>list){for(Map<String,Object>map:list){Stringpath=(String)map.get("path");StringtisDir=(String)map.get("isDir");boolean

isDir="true".equals(tisDir)?true:false;SwiftDFSswiftdfs=newSwiftDFS();swiftdfs.backgarbagefile(username,path,isDir);}}四、步驟實(shí)現(xiàn)9@RequestMapping("/backfiles")@ResponseBodypublicObjectbackfiles(HttpServletRequestrequest,HttpServletResponseresponse,@RequestBodyList<Map<String,Object>>list){Useruser=getSessionUser(request);storage.backgarbagefile(user.getUsername(),list);return

newMessageBean(true,Constants.SUCCESS_5);}在cn/edu/sict/cloud/storage/Web/StorageController.java添加如下代碼四、步驟實(shí)現(xiàn)10functionregarbagefile(){if(confirm("你確定要還原所選文件嗎？")){varobjTable=document.getElementById("tab");vardata='[';for(vary=0;y<objTable.rows.length;y++){varcheckbox=objTable.rows[y].childNodes[1].childNodes[0].childNodes[5];if(checkbox.checked==true){varcheckselect=checkbox;varfilepaths=checkselect.parentNode.parentNode.parentNode.childNodesvarpath=filepaths[7].innerHTML;path=decodeURIComponent(path);vartd3=filepaths[5];varimgpic=td3.getElementsByTagName("img");if(imgpic.length>0){isDir=true;varfilename=td3.childNodes[0].childNodes[1].childNodes[0];varname=$(filename).val();}else{isDir=false;varfilename=td3.childNodes[0].childNodes[0]varname=$(filename).text();}給還原按鈕綁定單擊事件regarbagefile()四、步驟實(shí)現(xiàn)11data+='{"path":"'+path+'","name":"'+name+'","isDir":"'+isDir+'"}';if(y<(objTable.rows.length-1)){data+=',';}}}data+=']';vardata=eval('('+data+')');$.ajax({url:"backfiles.action",type:"post",contentType:"application/json;char