我正在写一个类来跟踪比赛中的比赛数据。我想将此类存储到文件中,因此正在使用ObjectInputStream。我正在编写的类实现了Serializable。我得到一个EOFException,在SO和其他地方找不到的任何解决方案都不能真正解决此问题。

我的文件编写器是:

public void writeToFile(String path) {
    File f = new File(path);
    if(f.exists()) f.delete();

    try {
        OutputStream fileOut = new FileOutputStream(path);
        OutputStream bufferOut = new BufferedOutputStream(fileOut);
        ObjectOutput output = new ObjectOutputStream(bufferOut);

        output.writeObject(this);
    } catch(IOException e) {}
}


我的文件阅读器是:

public static DivisionDataFTC readFromFile(String path) {
    try {
        InputStream fileIn = new FileInputStream(path);
        InputStream bufferIn = new BufferedInputStream(fileIn);
        ObjectInput input = new ObjectInputStream(bufferIn);

        System.out.println(input.read());
    } catch(Exception e) {
        System.out.println(path);
        e.printStackTrace();
    }

    if(1==1) throw new Error("Could not read DivisionDataFTC at " + path);
    return null;
}


我已成功写入数据-我已验证文件不为空。 (如果相关,其内容始终为7.99kb)。

需要明确的是,在ObjectOutputStream的实例化上不会发生该错误。这就是使这个问题与众不同的原因-错误发生在readObject()调用上。我的输出是非常长的EOFException

java.io.EOFException
    at java.io.ObjectInputStream$BlockDataInputStream.peekByte(ObjectInputStream.java:2571)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1315)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:369)
    at java.util.ArrayList.readObject(ArrayList.java:733)
    (...cut out most of this because nobody wants to read it...)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:369)
    at tournamentftc.DivisionDataFTC.readFromFile(DivisionDataFTC.java:297)
    at firstscouting.FIRSTScouting.runGUI(FIRSTScouting.java:82)
    at firstscouting.FIRSTScouting.main(FIRSTScouting.java:101)
Exception in thread "main" java.lang.Error: Could not read DivisionDataFTC at C:\Users\Noah\Desktop\out.ser
    at tournamentftc.DivisionDataFTC.readFromFile(DivisionDataFTC.java:303)
    at firstscouting.FIRSTScouting.runGUI(FIRSTScouting.java:82)
    at firstscouting.FIRSTScouting.main(FIRSTScouting.java:101)


我不确定为什么会这样。我该如何处理?

最佳答案

您应该关闭ObjectOutputStream,尝试

 ObjectOutput output = new ObjectOutputStream(bufferOut);
 output.writeObject(this);
 output.close();

关于java - ObjectInputStream引发EOFException,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/15171184/

10-13 05:04