求大神指导这句有什么问题ObjectInputStream ob = new ObjectInputStream(fk);

[wluzhijie]

public class Demo1 {
public static void main(String[] args) throws IOException {
File fl = new File("test.txt");
FileOutputStream fm = new FileOutputStream(fl,true);
ObjectOutputStream kl = new ObjectOutputStream(fm);
kl.writeInt(11);
String str ="我爱你刘宋和";
kl.writeBytes(str);
kl.flush();
kl.close();
FileInputStream fk = new FileInputStream(fl);
ObjectInputStream ob = new ObjectInputStream(fk);
while(fk.read() != -1){
String m = ob.readUTF();
Integer in = ob.readInt();
System.out.println(m);
System.out.println(in);
}
}
}

[逗泥丸的平方]

啥问题 把异常日志贴出来?

[soton_dolphin]

没看出有什么问题

[wluzhijie]

Exception in thread "main" java.io.StreamCorruptedException: invalid stream header: CED2B0AE at java.io.ObjectInputStream.readStreamHeader(Unknown Source) at java.io.ObjectInputStream.<init>(Unknown Source) at Demo.Demo1.main(Demo1.java:23)

[wluzhijie]

日志就是上面我发的那个 我实在是不知道有啥问题 郁闷啊

[bluetata]

package com.ibm.dietime1943.test;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

public class Demo1 {
	private static ObjectInputStream ob;

	public static void main(String[] args) throws IOException {
		File fl = new File("C:\\temp\\test.txt");
		FileOutputStream fm = new FileOutputStream(fl, true);
		ObjectOutputStream kl = new ObjectOutputStream(fm);
		kl.writeInt(11);
		String str = "我爱你刘宋和";
		kl.writeBytes(str);
		
		FileInputStream fk = new FileInputStream(fl);
		ob = new ObjectInputStream(fk);
		while (fk.read() != -1) {
			String m = ob.readUTF();
			Integer in = ob.readInt();
			System.out.println(m);
			System.out.println(in);
		}

		kl.flush();
		kl.close();
	}
}

运行没有错误

[wluzhijie]

还是报错 你那怎么不报错 不可能吧

[qq_34273627]

你把那个txt文件里面的东西清空

[wluzhijie]

我这eclipse 报错 你那控制台也没打印出 写进去的内容

[逗泥丸的平方]

我以为会是编码问题 但是人家日文系统都没事

[逗泥丸的平方]

引用 12 楼 qq_35209952 的回复:

我以为会是编码问题 但是人家日文系统都没事

哦 要不你还是检查一下编码吧

[wluzhijie]

引用 9 楼 soton_dolphin 的回复:

[quote=引用 5 楼 dietime1943 的回复:]

package com.ibm.dietime1943.test;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

public class Demo1 {
	private static ObjectInputStream ob;

	public static void main(String[] args) throws IOException {
		File fl = new File("C:\\temp\\test.txt");
		FileOutputStream fm = new FileOutputStream(fl, true);
		ObjectOutputStream kl = new ObjectOutputStream(fm);
		kl.writeInt(11);
		String str = "我爱你刘宋和";
		kl.writeBytes(str);
		
		FileInputStream fk = new FileInputStream(fl);
		ob = new ObjectInputStream(fk);
		while (fk.read() != -1) {
			String m = ob.readUTF();
			Integer in = ob.readInt();
			System.out.println(m);
			System.out.println(in);
		}

		kl.flush();
		kl.close();
	}
}

运行没有错误

这个是运行时报错 到底是哪里的问题 好纠结！！

[尼古拉斯-全蛋]

File fl = new File("d:/test.txt");
		FileOutputStream fm = new FileOutputStream(fl);
		ObjectOutputStream kl = new ObjectOutputStream(fm);
		kl.writeInt(11);
		String str = "测试测试测试";
		kl.writeUTF(str);
		kl.flush();
		kl.close();
		FileInputStream fk = new FileInputStream("d:/test.txt");
		ObjectInputStream ob = new ObjectInputStream(fk);
		Integer in = ob.readInt();
		String m = ob.readUTF();
		ob.close();
		System.out.println(m);
		System.out.println(in);

[nikyotensai]

Input要对应Input

[soton_dolphin]

引用 5 楼 dietime1943 的回复:

package com.ibm.dietime1943.test;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

public class Demo1 {
	private static ObjectInputStream ob;

	public static void main(String[] args) throws IOException {
		File fl = new File("C:\\temp\\test.txt");
		FileOutputStream fm = new FileOutputStream(fl, true);
		ObjectOutputStream kl = new ObjectOutputStream(fm);
		kl.writeInt(11);
		String str = "我爱你刘宋和";
		kl.writeBytes(str);
		
		FileInputStream fk = new FileInputStream(fl);
		ob = new ObjectInputStream(fk);
		while (fk.read() != -1) {
			String m = ob.readUTF();
			Integer in = ob.readInt();
			System.out.println(m);
			System.out.println(in);
		}

		kl.flush();
		kl.close();
	}
}

运行没有错误

这种表白很另类

[撸不完的代码]

很简单的问题，ObjectInputStream与ObjectOutputStream类所读写的对象必须实现Serializable接口，对象中的transient和static类型成员变量不会被读取和写入

[wluzhijie]

我又没给里面写对象 跟序列化有啥关系 。。。。。 况且写进去了啊，只是读不出来

[soton_dolphin]

为什么不用FileReader 和FileWriter?

[mayiha85]

ObjectInputStream与ObjectOutputStream是用来操作序列化对象用的.建议使用File相关的IO如果需要操作文件