Question

我正在尝试将进程的输出变为String，但我遇到了一些问题。不知何故，我设法将输出保存在一个单独的文件中（在stackoverflow.com上找到了一些东西）。以下是启动流程的代码：

    String javaHome = System.getProperty("java.home");

    String javaBin = javaHome + File.separator + "bin" + File.separator
            + "java";

    String classpath = System.getProperty("java.class.path");

    String className = klasse.getCanonicalName();
    ProcessBuilder builder = new ProcessBuilder(javaBin, "-cp", classpath,
            className, ip, port, team, "okay");

文件中的写作是：

     File log = new File("logfile_deleteable" + a);
     builder.redirectOutput(Redirect.appendTo(log));

     assert builder.redirectInput() == Redirect.PIPE;
     assert builder.redirectOutput().file() == log;
     assert process[a].getInputStream().read() == -1;

最后：

    process[a] = builder.start();

Answer 1

试试这个

BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process[a].getInputStream()));
StringBuilder stringBuilder = new StringBuilder();
String line = null;
while ( (line = bufferedReader.readLine()) != null) {
   stringBuilder.append(line);
   stringBuilder.append(System.getProperty("line.separator"));
}
String output = stringBuilder.toString();

将进程的输出重定向到字符串？

1 个答案: