Question

我知道这个问题之前已被问过一百次，但我尝试过的任何东西似乎都没有用。

我只想将文本文件加载到JAR中。我尝试过的大多数方法都可以在Eclipse中正常工作，但一旦导出就不行。以下是我在下面尝试过的一些代码：

public String[] loadTranslations(String trans){

    String name = "/translations/"+trans+".txt";

    ArrayList<String> lines = new ArrayList<String>();
      URL url = this.getClass().getResource(name);
        System.out.println("URL: " + url);
        File f = new File(url.getFile());

        try {
            FileReader reader = new FileReader(f);        
            try {
                BufferedReader bufferedReader = new BufferedReader(reader);
                 String line = null;
                 while ((line = bufferedReader.readLine()) != null) {
                     lines.add(line);

                 }
                 bufferedReader.close();
                 return lines.toArray(new String[lines.size()]);
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        } catch (FileNotFoundException notFoundEx) {
            System.out.println("Caught FileNotFoundException: " + notFoundEx.getMessage());
        }

        return lines.toArray(new String[0]);
}

和......

public String[] loadTranslations3(String trans){
    String name = "translations/"+trans+".txt";
    ArrayList<String> lines = new ArrayList<String>();

    try {
        BufferedReader reader = new BufferedReader(new InputStreamReader(getClass().getClassLoader().getResourceAsStream(name)));
        String line;
        while ((line = reader.readLine()) != null) {
        lines.add(line);
        }
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return lines.toArray(new String[0]);

    }

该功能应该由

等命令运行

String[] translations = loadTranslations("EN");

我尝试过使用/不使用斜杠等。

我在src目录中有我的翻译文件夹，它包含在构建路径中： Folder

异常是一个NullPOinter： Null

当我尝试运行第二个代码示例时，这是转储：

java.lang.NullPointerException
at java.io.Reader.<init>(Reader.java:78)
at java.io.InputStreamReader.<init>(InputStreamReader.java:72)
at com.animation.shop.Main.loadTranslations(Main.java:215)
at com.animation.shop.Main.initTranslations(Main.java:287)
at com.animation.shop.Main.initVars(Main.java:197)
at com.animation.shop.Main.<init>(Main.java:1142)
at com.animation.shop.Main$1.run(Main.java:361)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:733)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:703)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatc...

第215行：

  BufferedReader reader = new BufferedReader(new InputStreamReader(getClass().getClassLoader().getResourceAsStream(name)));

Answer 1

仍然不太确定那里存在什么问题，可能是我忽略了但我通过使用processing.core.PApplet loadStrings（）函数来实现它：代码：（basicPapplet扩展了processing.core.PApplet）

    public String[] loadTranslations(String trans){

    String name = "data/translations/"+trans+".txt";

     basicPapplet bp = new basicPapplet();

返回bp.loadStrings（name）;

Answer 2

你的第二种方法工作正常。以下是我的工作方式：

public class Test {

    public static void main(String[] args) {
        Test test = new Test();
        String[] strings = test.loadTranslations3("test");
        for(String someString : strings) {
            System.out.println(someString);
        }
    }

    public String[] loadTranslations3(String trans) {
        String name = "translations/" + trans + ".txt";
        ArrayList<String> lines = new ArrayList<String>();

        try {
            BufferedReader reader = new BufferedReader(new InputStreamReader(
                    getClass().getClassLoader().getResourceAsStream(name)));
            String line;
            while ((line = reader.readLine()) != null) {
                lines.add(line);
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return lines.toArray(new String[0]);
    }
}

我在eclipse中的文件夹结构是：

src/somepackage/Test.java
src/translations/test.txt

从Eclipse导出时，导出为Runnable JAR文件，并指向Test.java类。

另外，请确保在项目属性中，src文件夹具有：

Included: (All)
Excluded:(None)

将.txt文件读入JAR。它适用于Eclipse，但不适用于导出的JAR

2 个答案: