创建线程时出现IllegalThreadStateException(IllegalThreadStateException when creating thread)

 所以这里的代码应该是我错误的来源： 
 
try {
config = new Configuration(configFile);
} catch (ConfigurationException e1) {}

try {
    // Create a ServerSocket 
    ss = new ServerSocket(PORT);
    System.out.println("Server bound at port " + ss.getLocalPort());
}catch (Exception e) {}

new ServerThread(ss, config).start();
 
 这是我第一次创建线程，因此线程无法运行。 一旦创建了这个线程，我也没有再次引用它，所以我不确定如何获得IllegalThreadStateException。 
 
 这是堆栈跟踪： 
 
Exception in thread "Thread-3" java.lang.IllegalThreadStateException
at java.lang.Thread.start(Unknown Source)
at HttpServer.<init>(HttpServer.java:36)
 
 任何帮助将不胜感激。 
 
 编辑：将线程启动代码更改为： 
 
ServerThread initServerThread = new ServerThread(ss, config);
System.out.println(initServerThread.getState().toString());
initServerThread.start();
 
 线程状态为“RUNNABLE” 
 
 另外这里是线程类...... 
 
public class ServerThread extends Thread {

ServerSocket serverSocket;
Socket nextClient;
Configuration config;

public ServerThread(ServerSocket ss, Configuration newConfig) {
    super();
    serverSocket = ss;
    config = newConfig;
    start();
}

public void run() {
    try {
        nextClient = serverSocket.accept();
    } catch (IOException e) {
        System.err.println(e);
        System.err.println("Usage: java HttpRequest <port>");
    }

    // Create new thread to listen for next incoming connection.
    new ServerThread(serverSocket, config).start();

    try {
        nextClient = serverSocket.accept();
    } catch (IOException e) {}

    HttpRequestHandler httpHandler = new HttpRequestHandler(nextClient, config);
    httpHandler.parseHttpRequest();
    }
}

So here's the code that should be the source of my error:
 
try {
config = new Configuration(configFile);
} catch (ConfigurationException e1) {}

try {
    // Create a ServerSocket 
    ss = new ServerSocket(PORT);
    System.out.println("Server bound at port " + ss.getLocalPort());
}catch (Exception e) {}

new ServerThread(ss, config).start();
 
This is the first time I'm creating a thread so the thread can't already be running. I'm also not referencing this thread again once it has been created so I'm not sure how I could be getting an IllegalThreadStateException.
 
Here's the stack trace:
 
Exception in thread "Thread-3" java.lang.IllegalThreadStateException
at java.lang.Thread.start(Unknown Source)
at HttpServer.<init>(HttpServer.java:36)
 
Any help would be GREATLY appreciated.
 
EDIT: Changed the thread starting code to this:
 
ServerThread initServerThread = new ServerThread(ss, config);
System.out.println(initServerThread.getState().toString());
initServerThread.start();
 
The thread state is "RUNNABLE"
 
Also here's the thread class...
 
public class ServerThread extends Thread {

ServerSocket serverSocket;
Socket nextClient;
Configuration config;

public ServerThread(ServerSocket ss, Configuration newConfig) {
    super();
    serverSocket = ss;
    config = newConfig;
    start();
}

public void run() {
    try {
        nextClient = serverSocket.accept();
    } catch (IOException e) {
        System.err.println(e);
        System.err.println("Usage: java HttpRequest <port>");
    }

    // Create new thread to listen for next incoming connection.
    new ServerThread(serverSocket, config).start();

    try {
        nextClient = serverSocket.accept();
    } catch (IOException e) {}

    HttpRequestHandler httpHandler = new HttpRequestHandler(nextClient, config);
    httpHandler.parseHttpRequest();
    }
}

原文：https://stackoverflow.com/questions/20314849