读取新终端窗口的控制台输出

Question

在Java中，我想在Mac OS X上的单独终端窗口中运行脚本：

Runtime.getRuntime().exec("/usr/bin/open -a Terminal script.sh")

如何获取此脚本的输出？

Answer 1

使用以下方式读取命令的输出，result字符串将具有输出

Process process = Runtime.getRuntime().exec(command);
InputStream inputStream = process.getInputStream();
BufferedReader stdInput = new BufferedReader(new InputStreamReader(inputStream));
StringBuilder output = new StringBuilder();
String line = null;
while((line = stdInput.readLine()) != null) {
       output.append(line);
}
inputStream.close();
process.waitFor();
String result = output.toString();

Answer 2

使用BufferedReader似乎是一个简单的方法。

import java.io.*;
import java.util.stream.*;
. . .
Process p = Runtime.getRuntime().exec("/usr/bin/open -a Terminal script.sh");
BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));
// perhaps retrieve all the lines as a stream for future processing
// i.e. map, filter, reduce, etc.
Stream<String> lines = input.lines();
// or go line by line from the BufferedReader
String line;
while ((line = input.readLine()) != null) {
  // do something with line
}
// To just retrieve all the output as a single String
String output = input.lines().collect(Collectors.joining("n"));
. . .
input.close()