創建新文件時發生Java錯誤

-1

我在java中遇到了一些問題。我創建了一個新的文件而該文件是在一個名爲mainPlayerVariables類及其變量是public static File savePlayerCoins = new File("c:\\Games\\Coin_Clicker\\saves\\pc.txt");但在mainGame腳本，我的JFrame是我添加了一個JButton，並在其上這個的onClick功能：創建新文件時發生Java錯誤

mainPlayerVariables.playerCoins++; 
lblCoins.setText("x" + mainPlayerVariables.playerCoins); 

try { 
       BufferedWriter bwSaveCoins = new BufferedWriter(new FileWriter(mainPlayerVariables.savePlayerCoins)); 
       bwSaveCoins.write(mainPlayerVariables.playerCoins); 
       bwSaveCoins.close(); 

       mainPlayerVariables.savePlayerCoins.getParentFile().mkdirs(); 
       mainPlayerVariables.savePlayerCoins.createNewFile(); 
      } catch (IOException e1) { 
       // TODO Auto-generated catch block 
       e1.printStackTrace(); 
      }

現在我不知道爲什麼Java向bufferedWriter顯示錯誤並創建新的文件代碼。

請幫助，如果你知道。謝謝。以下是錯誤：

java.io.FileNotFoundException: c:\Games\Coin_Clicker\saves\pc.txt (The system cannot find the path specified) 
at java.io.FileOutputStream.open0(Native Method) 
at java.io.FileOutputStream.open(Unknown Source) 
at java.io.FileOutputStream.<init>(Unknown Source) 
at java.io.FileOutputStream.<init>(Unknown Source) 
at java.io.FileWriter.<init>(Unknown Source) 
at mainGame.mainGamePlay$2.mouseReleased(mainGamePlay.java:82) 
at java.awt.Component.processMouseEvent(Unknown Source) 
at javax.swing.JComponent.processMouseEvent(Unknown Source) 
at java.awt.Component.processEvent(Unknown Source) 
at java.awt.Container.processEvent(Unknown Source) 
at java.awt.Component.dispatchEventImpl(Unknown Source) 
at java.awt.Container.dispatchEventImpl(Unknown Source) 
at java.awt.Component.dispatchEvent(Unknown Source) 
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) 
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) 
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) 
at java.awt.Container.dispatchEventImpl(Unknown Source) 
at java.awt.Window.dispatchEventImpl(Unknown Source) 
at java.awt.Component.dispatchEvent(Unknown Source) 
at java.awt.EventQueue.dispatchEventImpl(Unknown Source) 
at java.awt.EventQueue.access$500(Unknown Source) 
at java.awt.EventQueue$3.run(Unknown Source) 
at java.awt.EventQueue$3.run(Unknown Source) 
at java.security.AccessController.doPrivileged(Native Method) 
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) 
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) 
at java.awt.EventQueue$4.run(Unknown Source) 
at java.awt.EventQueue$4.run(Unknown Source) 
at java.security.AccessController.doPrivileged(Native Method) 
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) 
at java.awt.EventQueue.dispatchEvent(Unknown Source) 
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) 
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) 
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) 
at java.awt.EventDispatchThread.pumpEvents(Unknown Source) 
at java.awt.EventDispatchThread.pumpEvents(Unknown Source) 
at java.awt.EventDispatchThread.run(Unknown Source)

如果我在文件選項錯誤，請幫我改正。 :)

來源

2016-11-26 Ngdava Games

上面清清楚楚地寫着FileNotFoundException異常吧？「系統找不到指定的路徑」 – developer

是的，但是爲什麼。我有代碼getParentFile（）。mkdirs（）; –

你的代碼沒有任何意義。你應該調用'mkdirs（）'* first *'，*然後*'new FileWriter（）'，並且寫入和關閉，而不是調用'createNewFile（）'* * – EJP

嗯，夥計們，我發現了爲什麼，沒有必要回答。 :)順便謝謝所有。

我已將mainPlayerVariables.savePlayerCoins.getParentFile().mkdirs(); 代碼放在錯誤的地方。

這是修正：

mainPlayerVariables.savePlayerCoins.getParentFile().mkdirs(); 
try { 
      BufferedWriter bwSaveCoins = new BufferedWriter(new FileWriter(mainPlayerVariables.savePlayerCoins)); 
      bwSaveCoins.write(mainPlayerVariables.playerCoins); 
      bwSaveCoins.close(); 

      mainPlayerVariables.savePlayerCoins.createNewFile(); 
     } catch (IOException e1) { 
      // TODO Auto-generated catch block 
      e1.printStackTrace(); 
     }

來源

2016-11-26 07:07:51

大家知道，你的'createNewFile（）'調用不會做任何事情，因爲這個文件已經存在了。 – qxz

我知道，謝謝。 :) –

所以你應該刪除它。 – EJP

創建新文件時發生Java錯誤

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