我正在尝试使用 RandomAccessFile 写入现有文件，但是对 writer.writeUTF() 的调用会用不可打印字符或换行符覆盖写入偏移之前的两个字符。我真的不知道是什么导致了这个问题，并且我进行了多次搜索，但没有任何结果。
File mapObjects = new File(args[0] + "/data/maps/objects");
ArrayList<String> warpNames = new ArrayList<String>();
ArrayList<Integer> offsets = new ArrayList<Integer>();
for (File mapObject : mapObjects.listFiles()) {
try {
Scanner reader = new Scanner(mapObject);
int offset = 0;
String ln = new String();
System.out.println(mapObject.getPath());
while (!ln.contains("def_warps_to")) { // will loop until it finds the definition of the warp name
offset += ln.length();
ln = reader.nextLine();
}
offset += 28;
warpNames.add(ln.substring(14)); // adds the "warps_to" token to the list
offsets.add(offset);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
Collections.shuffle(warpNames); // randomize
for (String s : warpNames)
System.out.println(s);
int i = 0; // iterator of warpNames and offsets
for (File mapObject : mapObjects.listFiles()) {
try {
RandomAccessFile writer = new RandomAccessFile(mapObject, "rw");
writer.seek(offsets.get(i));
writer.writeUTF(warpNames.get(i)); // overwrites "warps_to" token with randomized one
i++;
} catch (IOException e) {
e.printStackTrace();
}
}