[英]Reading a .txt file into JAR. It works in Eclipse but not in exported JAR
我知道这个问题已经问过一百遍了,但是我尝试过的任何方法似乎都没有用。
我只希望能够将文本文件加载到JAR中。 我尝试过的大多数方法在Eclipse中都可以正常工作,但是一旦导出就不能。 这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]);
}
还有...
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]);
}
该功能应通过以下命令运行
String[] translations = loadTranslations("EN");
我尝试过/不使用斜杠等。
我的翻译文件夹位于src目录中,并且包含在构建路径中:
NullPOinter是一个例外:
这是我尝试运行第二个代码示例时的转储:
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...
215行:
BufferedReader reader = new BufferedReader(new InputStreamReader(getClass().getClassLoader().getResourceAsStream(name)));
仍然不太确定问题出在哪里,可能是我忽略了一些问题,但是我通过使用processing.core.PApplet loadStrings()函数使其正常工作: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);
}
您的第二种方法很好用。 这是我的工作方式:
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,导出为可运行的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)
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