文件夾數據庫處理邏輯

publicclassDbFolder

{

JSONObject root;

publicDbFolder()

{

this.root =newJSONObject();

this.root.put("f_id","");

this.root.put("f_nameLoc","根目錄");

this.root.put("f_pid","");

this.root.put("f_pidRoot","");

}

/**

*將JSONArray轉換成map

*@paramfolders

*@return

*/

publicMap toDic(JSONArray folders)

{

Map dt =newHashMap();

for(inti = 0 , l = folders.size();i

{

JSONObject o = folders.getJSONObject(i);

String id = o.getString("f_id");

dt.put(id, o);

}

returndt;

}

publicMap foldersToDic(String pidRoot)

{

//默認加載根目錄

String sql = String.format("select f_id,f_nameLoc,f_pid,f_pidRoot from up6_folders where f_pidRoot='%s'", pidRoot);

SqlExec se =newSqlExec();

JSONArray folders = se.exec("up6_folders", sql,"f_id,f_nameLoc,f_pid,f_pidRoot","");

returnthis.toDic(folders);

}

publicArrayList sortByPid( Map dt, String idCur, ArrayList psort) {

String cur = idCur;

while(true)

{

//key不存在

if(!dt.containsKey(cur))break;

JSONObject d = dt.get(cur);//查父ID

psort.add(0, d);//將父節點排在前面

cur = d.getString("f_pid").trim();//取父級ID

if(cur.trim() =="0")break;

if( StringUtils.isBlank(cur) )break;

}

returnpsort;

}

publicJSONArray build_path_by_id(JSONObject fdCur) {

String id = fdCur.getString("f_id").trim();//

String pidRoot = fdCur.getString("f_pidRoot").trim();//

//根目錄

ArrayList psort =newArrayList();

if(StringUtils.isBlank(id))

{

psort.add(0,this.root);

returnJSONArray.fromObject(psort);

}

//構建目錄映射表(id,folder)

Map dt =this.foldersToDic(pidRoot);

//按層級順序排列目錄

psort =this.sortByPid(dt, id, psort);

SqlExec se =newSqlExec();

//是子目錄->添加根目錄

if(!StringUtils.isBlank(pidRoot))

{

JSONObject root = se.read("up6_files"

,"f_id,f_nameLoc,f_pid,f_pidRoot"

,newSqlParam[] {newSqlParam("f_id", pidRoot) });

psort.add(0, root);

}//是根目錄->添加根目錄

elseif(!StringUtils.isBlank(id) && StringUtils.isBlank(pidRoot))

{

JSONObject root = se.read("up6_files"

,"f_id,f_nameLoc,f_pid,f_pidRoot"

,newSqlParam[] {newSqlParam("f_id", id) });

psort.add(0, root);

}

psort.add(0,this.root);

returnJSONArray.fromObject(psort);

}

publicFileInf read(String id) {

SqlExec se =newSqlExec();

String sql = String.format("select f_pid,f_pidRoot,f_pathSvr from up6_files where f_id='%s' union select f_pid,f_pidRoot,f_pathSvr from up6_folders where f_id='%s'", id,id);

JSONArray data = se.exec("up6_files", sql,"f_pid,f_pidRoot,f_pathSvr","");

JSONObject o = (JSONObject)data.get(0);

FileInf file =newFileInf();

file.id = id;

file.pid = o.getString("f_pid").trim();

file.pidRoot = o.getString("f_pidRoot").trim();

file.pathSvr = o.getString("f_pathSvr").trim();

returnfile;

}

publicBoolean exist_same_file(String name,String pid)

{

SqlWhereMerge swm =newSqlWhereMerge();

swm.equal("f_nameLoc", name.trim());

swm.equal("f_pid", pid.trim());

swm.equal("f_deleted", 0);

String sql = String.format("select f_id from up6_files where %s ", swm.to_sql());

SqlExec se =newSqlExec();

JSONArray arr = se.exec("up6_files", sql,"f_id","");

returnarr.size() > 0;

}

/**

*檢查是否存在同名目錄

*@paramname

*@parampid

*@return

*/

publicBoolean exist_same_folder(String name,String pid)

{

SqlWhereMerge swm =newSqlWhereMerge();

swm.equal("f_nameLoc", name.trim());

swm.equal("f_deleted", 0);

swm.equal("LTRIM (f_pid)", pid.trim());

String where = swm.to_sql();

String sql = String.format("(select f_id from up6_files where %s ) union (select f_id from up6_folders where %s)", where,where);

SqlExec se =newSqlExec();

JSONArray fid = se.exec("up6_files", sql,"f_id","");

returnfid.size() > 0;

}

publicBoolean rename_file_check(String newName,String pid)

{

SqlExec se =newSqlExec();

JSONArray res = se.select("up6_files"

,"f_id"

,newSqlParam[] {

newSqlParam("f_nameLoc",newName)

,newSqlParam("f_pid",pid)

},"");

returnres.size() > 0;

}

publicBoolean rename_folder_check(String newName, String pid)

{

SqlExec se =newSqlExec();

JSONArray res = se.select("up6_folders"

,"f_id"

,newSqlParam[] {

newSqlParam("f_nameLoc",newName)

,newSqlParam("f_pid",pid)

},"");

returnres.size() > 0;

}

publicvoidrename_file(String name,String id) {

SqlExec se =newSqlExec();

se.update("up6_files"

,newSqlParam[] {newSqlParam("f_nameLoc", name) }

,newSqlParam[] {newSqlParam("f_id", id) });

}

publicvoidrename_folder(String name, String id, String pid) {

SqlExec se =newSqlExec();

se.update("up6_folders"

,newSqlParam[] {newSqlParam("f_nameLoc", name) }

,newSqlParam[] {newSqlParam("f_id", id) });

}

}

1.在webuploader.js大概4880行代碼左右，在動態生成的input組件的下面(也可以直接搜索input)，增加webkitdirectory屬性。

functionFileUploader(fileLoc, mgr)

{

var_this =this;

this.id = fileLoc.id;

this.ui = { msg:null, process:null, percent:null, btn: { del:null, cancel:null,post:null,stop:null}, div:null};

this.isFolder =false;//不是文件夾

this.app = mgr.app;

this.Manager = mgr;//上傳管理器指針

this.event = mgr.event;

this.Config = mgr.Config;

this.fields = jQuery.extend({}, mgr.Config.Fields, fileLoc.fields);//每一個對象自帶一個fields幅本

this.State =this.Config.state.None;

this.uid =this.fields.uid;

this.fileSvr = {

pid:""

, id:""

, pidRoot:""

, f_fdTask:false

, f_fdChild:false

, uid: 0

, nameLoc:""

, nameSvr:""

, pathLoc:""

, pathSvr:""

, pathRel:""

, md5:""

, lenLoc:"0"

, sizeLoc:""

, FilePos:"0"

, lenSvr:"0"

, perSvr:"0%"

, complete:false

, deleted:false

};//json obj，服務器文件信息

this.fileSvr = jQuery.extend(this.fileSvr, fileLoc);

2.可以獲取路徑

this.open_files =function(json)

{

for(vari = 0, l = json.files.length; i < l; ++i)

{

this.addFileLoc(json.files[i]);

}

setTimeout(function() { _this.PostFirst(); },500);

};

this.open_folders =function(json)

{

for(vari = 0, l = json.folders.length; i < l; ++i) {

this.addFolderLoc(json.folders[i]);

}

setTimeout(function() { _this.PostFirst(); }, 500);

};

this.paste_files =function(json)

{

for(vari = 0, l = json.files.length; i < l; ++i)

{

this.addFileLoc(json.files[i]);

}

};

后端代碼邏輯大部分是相同的，目前能夠支持MySQL,Oracle,SQL。在使用前需要配置一下數據庫，可以參考我寫的這篇文章：http://blog.ncmem.com/wordpress/2019/08/07/java超大文件上傳與下載/

總結

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