一起使用BufferedReader和InputStream [英] Use BufferedReader and InputStream together

问题描述

我使用BufferedReader从InputStream中读取行。当我直接从InputStream读取内容时，BufferedReader会忽略我的读取并继续在同一位置读取。是否可以防止这种行为？如果不是这样做的好习惯？

I use a BufferedReader to read lines from an InputStream. When I read something directly from the InputStream, the BufferedReader ignores my read and continues reading at the same location. Is it possible to prevent this behavior? If not what is a good practice to do this?

PS：这是我的代码：

PS: Here's my code:

byte[] ba = new byte[1024*1024];
int off = 0;
int len = 0;
do {
    len = Integer.parseInt(br.readLine());
    in.read(ba, off, len);
    br.readLine();
    off += len;
} while(len > 0);

in 是我的输入流和 br 我的bufferedreader。

in is my inputstream and br my bufferedreader.

推荐答案

同时从BufferedReader和InputStream读取不可能。如果你需要二进制数据，你应该使用多个readLine（）调用。

Reading from a BufferedReader and an InputStream at the same time is not possible. If you need binary data, you should use multiple readLine() calls.

这是我的新代码：

byte[] ba = new byte[1024*1024];
int off = 0;
int len = 0;
do {
    len = Integer.parseInt(br.readLine().split(";" , 2)[0],16);
    for (int cur = 0; cur < len;) {
        byte[] line0 = br.readLine().getBytes();
        for (int i = 0; i < line0.length; i++) {
            ba[off+cur+i] = line0[i];
        }
        cur += line0.length;
        if(cur < len) {
            ba[off+cur] = '\n';
            cur++;
        }
    }
    off += len;
} while(len > 0);

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