Java-使用InputStream读取行 [英] Java - Read line using InputStream

问题描述

我使用InputStream读取一些数据，因此我想读取字符，直到换行或'\ n'.

I use InputStream to read some data, so I want to read characters until new line or '\n'.

推荐答案

如果从文件中读取文件，则应将BufferedReader与FileInputStreamReader一起使用

You should use BufferedReader with FileInputStreamReader if your read from a file

BufferedReader reader = new BufferedReader(new FileInputStreamReader(pathToFile));

或使用InputStreamReader(如果您从其他任何InputStream

or with InputStreamReader if you read from any other InputStream

BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));

然后在循环中使用其readLine()方法

Then use its readLine() method in a loop

while(reader.ready()) {
     String line = reader.readLine();
}

但是，如果您真的喜欢InputStream，则可以使用这样的循环

But if you really love InputStream then you can use a loop like this

InputStream stream; 
char c; 
String s = ""; 
do {
   c = stream.read(); 
   if (c == '\n')
      break; 
   s += c + "";
} while (c != -1);

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