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读写FileNotFoundException (访问被拒绝)
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Stack Overflow用户
提问于 2017-04-27 00:07:20
回答 2查看 5.8K关注 0票数 0

每当我的程序试图读取或写入文件时,我都会收到以下消息:

代码语言:javascript
复制
[System]: LoadConfig >> Config file is missing or corrupt!
C:\Users\Cardinal System\AppData\Roaming\OrlowBase\Run.config (Access is denied)

我在网上查过这个问题,每个有这个问题的人都只是想读一个目录,这也是写文件的方式。我检查了所有的东西,但是它仍然是throwexception。我试着以管理员的身份运行程序,但没有做任何事情:/

如果你看我的代码,你可以看到我正在记录一切。我会提供一份我的日志。

这是我的阅读方法:

代码语言:javascript
复制
public static ArrayList<String> readConfig(){

    ArrayList<String> list = new ArrayList<String>();

    try {
        Scanner sc = new Scanner(searchForConfig(baseDir));
        //searchForConfig(baseDir) always will return a file.

        while(sc.hasNextLine()){
            list.add(sc.nextLine());
        }

        sc.close();

        return list;
    } catch (FileNotFoundException e) {
        Logger.addElement("[System]: LoadConfig >> Config file is missing or corrupt!");
        Logger.addElement(e.getMessage());
    }

    list.add("Nothing");

    return list;
}

我的写作方法如下:

代码语言:javascript
复制
public static boolean createNewFile(String Name, String Path, ArrayList<String> Content, boolean override){

    File file2 = new File(Path + dash + Name);

    if(override == false & file2.exists()){

        Name += "1";

    }else{
        if(override == true & file2.exists()){
            file2.delete();
        }
    }

    if(!(Name.indexOf(".") > 0)){
        Name += ".cardinal";
    }

    File file = new File(Path);
    if(!file.isDirectory() | !file.exists()){
        Logger.addElement("[FileWriter]: NewFile >> New file path is invalid.");
        Logger.addElement("[FileWriter]: NewFile >> Creating dirs at path.");
        file.mkdirs();
    }


    try {

        PrintWriter pw = new PrintWriter(Path + dash + Name, "UTF-8");

        for(int i = 0; i < Content.size(); i++){
            pw.println(Content.get(i));
        }
        Logger.addElement("[FileWriter]: NewFile >> Creating file " + Name + " at " + Path + dash);
        pw.close();
        return true;

    } catch (FileNotFoundException e) {
        Logger.addElement("[FileWriter]: NewFile >> FileNotFoundException.");
        Logger.addElement(e.getMessage());
        return false;
    } catch (UnsupportedEncodingException e) {
        Logger.addElement("[FileWriter]: NewFile >> UnsupportedEncodingException.");
        Logger.addElement(e.getMessage());
        return false;
    }
}

更新:我更改了记录器以记录stacktraces,并获得了更多信息。它有点长,但是所有的东西都在那里:

代码语言:javascript
复制
[System]: Config >> Searching for config in base directory...
[System]: LoadConfig >> Config file is missing or corrupt!
java.io.FileNotFoundException: C:\Users\Cardinal System\AppData\Roaming\OrlowBase\Run.config (Access is denied)
    at java.io.FileInputStream.open0(Native Method)
    at java.io.FileInputStream.open(Unknown Source)
    at java.io.FileInputStream.<init>(Unknown Source)
    at java.util.Scanner.<init>(Unknown Source)
    at com.orlow.base.FileSystem.Config.LoadConfig.readConfig(LoadConfig.java:21)
    at com.orlow.base.FileSystem.Config.Config.<clinit>(Config.java:9)
    at com.orlow.base.Init.Init.preInit(Init.java:20)
    at com.orlow.base.Main.main(Main.java:10)
[System]: Config >> Searching for config in base directory...
[System]: LoadConfig >> Config file is missing or corrupt!
java.io.FileNotFoundException: C:\Users\Cardinal System\AppData\Roaming\OrlowBase\Run.config (Access is denied)
    at java.io.FileInputStream.open0(Native Method)
    at java.io.FileInputStream.open(Unknown Source)
    at java.io.FileInputStream.<init>(Unknown Source)
    at java.util.Scanner.<init>(Unknown Source)
    at com.orlow.base.FileSystem.Config.LoadConfig.readConfig(LoadConfig.java:21)
    at com.orlow.base.FileSystem.Config.Config.checkConfig(Config.java:13)
    at com.orlow.base.Init.Init.preInit(Init.java:20)
    at com.orlow.base.Main.main(Main.java:10)
[preInit]: Logger >> Starting logger...
[preInit]: Tests >> Testing config...
[System]: Config >> Searching for config in base directory...
[System]: LoadConfig >> Config file is missing or corrupt!
java.io.FileNotFoundException: C:\Users\Cardinal System\AppData\Roaming\OrlowBase\Run.config (Access is denied)
    at java.io.FileInputStream.open0(Native Method)
    at java.io.FileInputStream.open(Unknown Source)
    at java.io.FileInputStream.<init>(Unknown Source)
    at java.util.Scanner.<init>(Unknown Source)
    at com.orlow.base.FileSystem.Config.LoadConfig.readConfig(LoadConfig.java:21)
    at com.orlow.base.Init.Init.preTests(Init.java:62)
    at com.orlow.base.Init.Init.preInit(Init.java:22)
    at com.orlow.base.Main.main(Main.java:10)
[preInit]: Config >> Config file is corrupt.
[System]: SaveConfig >> Replacing Config file...
java.io.FileNotFoundException: C:\Users\Cardinal System\AppData\Roaming\OrlowBase\Run.config (Access is denied)
    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.PrintWriter.<init>(Unknown Source)
    at java.io.PrintWriter.<init>(Unknown Source)
    at com.orlow.base.FileSystem.DataStorage.Files.createNewFile(Files.java:98)
    at com.orlow.base.FileSystem.Config.SaveConfig.replaceCorruptConfig(SaveConfig.java:26)
    at com.orlow.base.FileSystem.Config.Config.getConfigMode(Config.java:32)
    at com.orlow.base.FileSystem.Config.Config.getBuildPath(Config.java:77)
    at com.orlow.base.Init.Init.preTests(Init.java:68)
    at com.orlow.base.Init.Init.preInit(Init.java:22)
    at com.orlow.base.Main.main(Main.java:10)
[preInit]: Config >> Config file is corrupt.
[System]: SaveConfig >> Replacing Config file...
java.io.FileNotFoundException: C:\Users\Cardinal System\AppData\Roaming\OrlowBase\Run.config (Access is denied)
    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.PrintWriter.<init>(Unknown Source)
    at java.io.PrintWriter.<init>(Unknown Source)
    at com.orlow.base.FileSystem.DataStorage.Files.createNewFile(Files.java:98)
    at com.orlow.base.FileSystem.Config.SaveConfig.replaceCorruptConfig(SaveConfig.java:26)
    at com.orlow.base.FileSystem.Config.Config.getConfigMode(Config.java:32)
    at com.orlow.base.Init.Init.preTests(Init.java:74)
    at com.orlow.base.Init.Init.preInit(Init.java:22)
    at com.orlow.base.Main.main(Main.java:10)
[preInit]: Config >> Config file is corrupt.
[System]: SaveConfig >> Replacing Config file...
java.io.FileNotFoundException: C:\Users\Cardinal System\AppData\Roaming\OrlowBase\Run.config (Access is denied)
    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.PrintWriter.<init>(Unknown Source)
    at java.io.PrintWriter.<init>(Unknown Source)
    at com.orlow.base.FileSystem.DataStorage.Files.createNewFile(Files.java:98)
    at com.orlow.base.FileSystem.Config.SaveConfig.replaceCorruptConfig(SaveConfig.java:26)
    at com.orlow.base.FileSystem.Config.Config.getConfigMode(Config.java:32)
    at com.orlow.base.FileSystem.Config.Config.getLogPath(Config.java:126)
    at com.orlow.base.Init.Init.preTests(Init.java:80)
    at com.orlow.base.Init.Init.preInit(Init.java:22)
    at com.orlow.base.Main.main(Main.java:10)
[preInit]: Config >> Log path is set to C:\Users\Cardinal System\AppData\Roaming\OrlowBase\Logs
[preInit]: Tests >> Config >> Config test was successful.
[preInit] Tests >> Testing file writer...
[FileWriter]: NewFile >> Creating file firstTestFile.cardinal at C:\Users\Cardinal System\AppData\Roaming\OrlowBase\Data\
[FileWriter]: NewFile >> Creating file secondTextFile.cardinal at C:\Users\Cardinal System\AppData\Roaming\OrlowBase\Data\
[FileWriter]: NewFile >> Creating file thirdTestFile.cardinal at C:\Users\Cardinal System\Desktop\Peter\Programming\Java\Eclipse\Workspaces\Main Workspace\TestSkills\
[FileWriter]: NewFile >> Creating file forthTestFile.cardinal at C:\Users\Cardinal System\Desktop\Peter\Programming\Java\Eclipse\Workspaces\Main Workspace\TestSkills\
[preInit] Tests >> File writer test was successful.
[Init]: Console >> Rendering console GUI...
[System]: Console >> Type "?" for help.
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回答 2

Stack Overflow用户

回答已采纳

发布于 2017-05-03 19:58:23

检查Orlowbase文件夹中用户的权限。当我拒绝读/写/完全控制的特权时,我得到了您显示的异常,当我允许它们时,您的程序运行良好。

票数 1
EN

Stack Overflow用户

发布于 2017-04-27 00:34:54

  • 可能是许可问题。作为运行应用程序的哪个用户?除了“红衣主教系统”之外的其他用户?检查对C:\Users\Cardinal System\AppData\Roaming\OrlowBase\*的读写访问
  • 捕捉FileNotFoundException时不要吞咽堆栈痕迹。它可能会让你找到潜在的原因。

更新:“AppData”是特定于用户的文件夹,只有用户和管理员才能访问。请参阅这里的更多信息:Can any user access the %APPDATA% folder

票数 -1
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接:

https://stackoverflow.com/questions/43646529

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