BufferReader异常

[u012282088]

package IO;
import java.io.*;


public class TestIO {

public static void main(String[] args) {

FileInputStream fis = null;
FileOutputStream fos = null;

try {
fis = new FileInputStream("G:\\shi's work\\java\\question.txt");
fos = new FileOutputStream("G:\\shi's work\\java\\copy1.txt");
;
} catch (FileNotFoundException e) {
System.out.println("文本地址错误");
e.printStackTrace();
}

BufferedReader br = null;
BufferedWriter bw = null;
String tem;
try{
br = new BufferedReader(new InputStreamReader (fis));
bw = new BufferedWriter(new OutputStreamWriter(fos));

while((tem =br.readLine())!=null){
bw.write(tem);
}
}catch(Exception e){
e.printStackTrace();
}
finally{
try {
br.close();
bw.flush();
bw.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}
}
}
文件也正确的复制了，但是最后抛出异常，求解释

PS：我删除了与它无关的源代码，所以最后提示的行数不是54

[teemai]

import java.io.*;

public class TestIO {

	public static void main(String[] args) {

		FileInputStream fis = null;
		FileOutputStream fos = null;

		try {
			fis = new FileInputStream("G:\\shi's work\\java\\question.txt");
                        fos = new FileOutputStream("G:\\shi's work\\java\\copy1.txt");
			;
		} catch (FileNotFoundException e) {
			System.out.println("文本地址错误");
			e.printStackTrace();
		}

		BufferedReader br = null;
		BufferedWriter bw = null;
		String tem;
		try {
			br = new BufferedReader(new InputStreamReader(fis));
			bw = new BufferedWriter(new OutputStreamWriter(fos));

			while ((tem = br.readLine()) != null) {
				bw.write(tem);
			}
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				br.close();
				bw.flush();
				bw.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

		}
	}
}

测试没啥问题

[其实我是真性情]

原来的54行是哪句啊？如果是bw.flush();，那你把它移动到br.close();前边

[其实我是真性情]

话说我这里没报错

[白开水MD5]

已试，没有异常，但有点问题 bw.write(tem);改成bw.write(tem+"\r\n");最好 关闭的时候先关bw,在关br，你还有fis和fos没有关闭

[老紫竹]

fis和fos关闭就可以了。

[u012282088]

引用 3 楼 lwb314 的回复:

话说我这里没报错

这不科学...

[u012282088]

引用 4 楼 a470577391 的回复:

已试，没有异常，但有点问题 bw.write(tem);改成bw.write(tem+"\r\n");最好 关闭的时候先关bw,在关br，你还有fis和fos没有关闭

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