java导出文件时让用户选择路径怎么弄？

使用保存文件对话框：\x0d\x0a\x0d\x0a /**\x0d\x0a * 保存\x0d\x0a */\x0d\x0aprivate void saveFile(){\x0d\x0aJFileChooser dialog = new JFileChooser();\x0d\x0adialog.setDialogTitle("另存为");\x0d\x0adialog.setFileSelectionMode(JFileChooser.FILES_ONLY);\x0d\x0adialog.setDialogType(JFileChooser.SAVE_DIALOG);\x0d\x0adialog.setFileFilter(new TextFileFilter("*.txt", "文本文档(*.txt)"));\x0d\x0aint result = dialog.showSaveDialog(this);\x0d\x0aif(result == JFileChooser.APPROVE_OPTION){\x0d\x0aFile file = dialog.getSelectedFile();\x0d\x0afileName = file.getAbsolutePath();//得到文件全名\x0d\x0a...\x0d\x0a}\x0d\x0a}\x0d\x0a\x0d\x0a附文本类型过滤器：\x0d\x0aimport java.io.File;\x0d\x0aimport java.util.ArrayList;\x0d\x0aimport javax.swing.filechooser.FileFilter;\x0d\x0a\x0d\x0a/**\x0d\x0a * 设置文件打开对话框的文件过滤器\x0d\x0a * @author developer\x0d\x0a */\x0d\x0apublic class TextFileFilter extends FileFilter {\x0d\x0aprivate ArrayList extensions = new ArrayList();\x0d\x0aprivate ArrayList descriptions = new ArrayList();\x0d\x0a\x0d\x0apublic TextFileFilter(){\x0d\x0asuper();\x0d\x0a}\x0d\x0a\x0d\x0apublic TextFileFilter(String extension, String description) {\x0d\x0asuper();\x0d\x0athis.extensions.add(extension);\x0d\x0athis.descriptions.add(description);\x0d\x0a}\x0d\x0a\x0d\x0a@Override\x0d\x0apublic boolean accept(File pathname) {\x0d\x0aif (pathname != null) {\x0d\x0aif (pathname.isDirectory()) {\x0d\x0areturn true;\x0d\x0a}\x0d\x0aString extension = getExtension(pathname);\x0d\x0afor(int i=0; i 0 && i < filename.length() - 1) {\x0d\x0areturn filename.substring(i).toLowerCase();\x0d\x0a}\x0d\x0a}\x0d\x0areturn null;\x0d\x0a}\x0d\x0a\x0d\x0a@Override\x0d\x0apublic String getDescription() {\x0d\x0areturn descriptions.get(descriptions.size()-1);\x0d\x0a}\x0d\x0a}

java瀵煎嚭鏂囦欢鏃惰鐢ㄦ埛閫夋嫨璺緞鎬庝箞寮?
绛旓細浣跨敤淇濆瓨鏂囦欢瀵硅瘽妗:\x0d\x0a\x0d\x0a /**\x0d\x0a * 淇濆瓨\x0d\x0a */\x0d\x0aprivate void saveFile(){\x0d\x0aJFileChooser dialog = new JFileChooser();\x0d\x0adialog.setDialogTitle("鍙﹀瓨涓");\x0d\x0adialog.setFileSelectionMode(JFileChooser.FILES_ONLY)...

java瀵煎嚭鏂囦欢鏃惰鐢ㄦ埛閫夋嫨璺緞鎬庝箞寮勫晩?鏈濂芥湁浠ｇ爜鈥︹
绛旓細JFileChooser chooser = new JFileChooser();JPanel parent = new JPanel();int returnVal = chooser.showOpenDialog(parent);if (returnVal == JFileChooser.APPROVE_OPTION) { System.out.println("閫夋嫨鐨鏂囦欢鍦板潃涓猴細"+ chooser.getSelectedFile().getPath());} 杩欎釜浜媕2se鐨勫啓娉曘備綘鐪嬬湅鍙互鐢ㄤ笉...

java 瀵煎嚭鏂囦欢骞惰幏鍙栨枃浠惰矾寰勭殑闂
绛旓細鍦╥e6涓浜庨氳繃obj.value鏄彲浠ヨ幏鍙栧鎴风閫夋嫨鏂囦欢鐨勫叏璺緞鐨勶紝浣嗘槸鍒癷e7灏卞彧鑳借幏鍙栨枃浠跺悕锛岃繖瀵逛簬onchange浜嬩欢绔嬪嵆鏄剧ず鍥剧墖浼氭湁闂锛屽彲浠ョ敤js鏂规硶瑙ｅ喅 鍏蜂綋浠ｇ爜濡備笅锛 get file input full path function getFullPath(obj){ if(obj){ //ie if (window.navigator.userAgent.indexOf("MSIE")>=1)...

java鍋歸eb寮鍙,濡備綍璁剧疆涓涓寜閽閫夋嫨鏂囦欢涓嬭浇鐨勬湰鍦拌矾寰,姹傚ぇ绁炴寚瀵...
绛旓細ie 娴忚鍣 锛屽伐鍏凤紝internet閫夐」锛屽畨鍏紝鑷畾涔夌骇鍒 杩欎釜鍕句笂涔嬪悗锛屽氨鍙互閫氳繃file鎷垮埌浠栬嚜宸辩殑璺緞浜嗭紝getPath锛堬級 浠涔堢殑锛屼綘鑷繁璇曚竴涓嬨

java 涓庝箞閫氳繃鏂囦欢閫夋嫨鍣ㄩ夋嫨瑕佷繚瀛樻枃浠剁殑鐨勭洰褰,鐒跺悗杩斿洖缁濆璺緞...
绛旓細public static void main(String[] args) { new FileChooser(); } public FileChooser(){ open=new JButton("鎵撳紑鏂囦欢閫夋嫨鍣"); this.add(open); this.setBounds(400, 200, 100, 100); this.setVisible(true); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); ...

java瀹炵幇涓嬭浇鏂囦欢鏃惰鐢ㄦ埛鑷畾涔閫夋嫨涓嬭浇璺緞
绛旓細杩欎釜涓嬭浇璺緞涓嶆槸鐢java鎺у埗鐨勶紝鑰屾槸浣犵殑娴忚鍣ㄦ帶鍒剁殑锛屾妸娴忚鍣ㄧ殑榛樿涓嬭浇璺緞鍘绘帀灏卞彲浠ヤ簡

java绋嬪簭璇诲彇璧勬簮鏂囦欢鏃璺緞濡備綍鎸囧畾
绛旓細(4)銆 this.getClass().getClassLoader().getResource("").getPath();//鑾峰彇宸ョ▼classes 涓嬬殑璺緞锛岃繖涓柟娉曞彲浠ュ湪浠绘剰jsp锛宻ervlet锛java鏂囦欢涓娇鐢紝鍥犱负涓嶇鏄痡sp锛宻ervlet鍏跺疄閮芥槸java绋嬪簭锛岄兘鏄竴涓 class銆傛墍浠ュ畠搴旇鏄竴涓氱敤鐨勬柟娉曘0銆佸叧浜庣粷瀵硅矾寰勫拰鐩稿璺緞 1.鍩烘湰姒傚康鐨勭悊瑙ｇ粷瀵硅矾寰勶細...

java鐢ㄦ埛鑷畾涔夎緭鍏鏂囦欢璺緞
绛旓細File file = new File(path); 杩欐牱灏卞彲浠璁╃敤鎴杈撳叆浜,,鍏跺疄鎴戝缓璁綘寮勪竴涓鏂囦欢璺緞閫夋嫨鐨勫璇濇,杩欎釜缃戜笂鐨勮祫婧愬埌澶勯兘鏄傝繖鏍风敤鎴锋棦鏂逛究,鍙堝噺灏戜簡涓浜涜矾寰勭殑check 鏈洖绛旇鎻愰棶鑰呴噰绾 785354225 | 鎺ㄨ崘浜2017-12-16 12:00:11 涓炬姤| 璇勮 2 7 鈥滆矾寰勨 鏉ヨ嚜:姹傚姪寰楀埌鐨勫洖绛 瀵掑寳灏 | 鍙戝竷浜2012...

JAVA涓浣曡Е鍔ㄦ寜閽悗寮瑰嚭鏂囦欢娴忚鍣ㄥ拰鏂囦欢鍚閫夋嫨妗,閫夋嫨淇濆瓨鐩綍?
绛旓細x0d\x0a System.out.println("浣犳墦寮鐨鏂囦欢鏄: " +\x0d\x0a chooser.getSelectedFile().getName());\x0d\x0a }\x0d\x0a}\x0d\x0apublic static void main(String[] args) {\x0d\x0afileChooser();\x0d\x0a}\x0d\x0a}\x0d\x0a\x0d\x0a寤鸿浣犲彲浠ョ炕java ...

java鐨awt鍖呬腑鏈夎兘閫夋嫨璺緞鐨勬帶浠跺悧,绫讳技FileDialog鍙兘閫夋嫨鏂囦欢,涓嶈兘...
绛旓細鐢↗FileChooser锛岀敤杩欎釜鏂规硶璁剧疆鍙兘閫夋嫨鐩綍杩樻槸鏂囦欢 void setFileSelectionMode(int mode) 璁剧疆 JFileChooser锛屼互鍏佽鐢ㄦ埛鍙閫夋嫨鏂囦欢銆佸彧閫夋嫨鐩綍锛屾垨鑰呭彲閫夋嫨鏂囦欢鍜岀洰褰曘

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