输入流数据的索引越界异常

Question

我试图刷新本地计算机文件中的数据以响应。但在某些时候我得到一个 IndexOutOfBoundsException.

FileInputStream inputStream = new FileInputStream(downloadFile);
OutputStream outStream = response.getOutputStream();
byte[] buffer = new byte[4096];
int bytesRead = -1;
while ((bytesRead = inputStream.read(buffer, 0, 4096)) != -1) {
    outStream.write(buffer, 0, bytesRead);
}
inputStream.close();
outStream.close();

上面的代码是我正在尝试的。给定的 downloadFile 路径是正确的，它一直工作到 while 循环。但是随后 IndexOutOfBoundsException 发生了。我用 inputStream.read(buffer) 试过了，但没有用。

Answer 1

提供的代码运行良好；由于没有给出关于 response 对象的信息，我已将 OutputStream 修改为 FileOutputStream；只是为了测试。

下面的代码段运行良好。

public class Test
{
    public static void main(String args[]) throws IOException
    {
        FileInputStream inputStream = new FileInputStream("C:\readme.txt");
        FileOutputStream outputStream = new FileOutputStream("D:\readme1.txt");
        //OutputStream outStream = response.getOutputStream();
        byte[] buffer = new byte[4096];
        int bytesRead = -1;
        while ((bytesRead = inputStream.read(buffer, 0, 4096)) != -1) {
            outputStream.write(buffer, 0, bytesRead);
        }
        inputStream.close();
        outputStream.close();
    }
}

输入流数据的索引越界异常

Index out of bound exception with inputstream data

java

http

spring-mvc

stringbuffer

java-io