java - BufferedWriter 到 ProcessBuilder 输入？

Question

我尝试了很多不同的选择，但似乎没有任何效果。我无法让我的代码将字符串输出到进程的“控制台”。这是我的代码:

    Process p;
    // Create new ProcessBuilder
    ProcessBuilder pb = new ProcessBuilder("java", "-jar", "jar-location").inheritIO();
    // Change work directory
    pb.directory(new File("other-location"));
    // Redirect output
    pb.redirectOutput(new File("C:\\xampp\\htdocs\\log.json"));
    // Start ProcessBuilder
    p = pb.start();
    OutputStream stdin = p.getOutputStream();
    BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(stdin));
    while(!done) {
        try {
            if(go != null) {
                writer.write(formatted[0])
            }
            Thread.sleep(1000);
        }
        catch(Exception err) {
            System.out.println(err);
        }
    }

“p”是我尝试向其提交输入的进程，“formatted”是一个数据数组。当你运行这个时，什么也没有发生。我尝试过刷新/关闭编写器，但是如果没有收到“java IO 异常:流已关闭”，我无法将其放在某个位置。谁能告诉我的代码有什么问题吗？

堆栈跟踪:

Exception in thread "main" java.io.IOException: Stream closed
    at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433)
    at java.io.OutputStream.write(OutputStream.java:116)
    at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:221)
    at sun.nio.cs.StreamEncoder.implClose(StreamEncoder.java:316)
    at sun.nio.cs.StreamEncoder.close(StreamEncoder.java:149)
    at java.io.OutputStreamWriter.close(OutputStreamWriter.java:233)
    at java.io.BufferedWriter.close(BufferedWriter.java:266)
    at com.Rocket_Scientist.Main.main(Main.java:60)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)

Answer 1

所以我找到了问题所在，感谢VGR (谢谢!)。 “.inheritIO()”正在重定向输出流，导致了问题。谢谢!