Apache HttpClient线程

Question

我使用的是Apache HttpClient 4.3.6，而且我在一个特定的实例中很难使用它。

通常，我的所有HttpPost调用都在一个主线程中，并且是串行发生的。但是，有一个实例，一旦发生特定类型的HttpPost，我需要启动一个侧线程来监控它。此侧线程会定期尝试连接到服务器以查看它是否仍然处于运行状态。如果与服务器的连接断开，我需要在main中断（）连接，以便它不会被卡住，直到超时发生（我可以合理地进行一个可以采取的操作） 45分钟即可完成。）

我在main的开头设置了一个PoolingHttpClientConnectionManager和一个CloseableHttpClient，然后我有一个send方法，main和side thread都用来设置方法本地的HttpPost对象。但是，send方法的side thread实例的client.execute（httpPost）局部变量结果以某种方式被分配给send方法的主线程实例中的局部变量result。他们越过了。我过去几个小时都在四处搜寻，但我找不到任何解决办法。

编辑：添加了示例代码。不得不通过将各种东西改为使用类的基本变量来混淆公司的东西，所以请原谅一些拼写错误/在此期间的任何事情。

类变量：

CloseableHttpClient client;
HttpPost longHttpPost;
boolean diePlz = false;

主要：

clientPool = new PoolingHttpClientConnectionManager();
clientPool.setMaxTotal(20);
clientPool.setDefaultMaxPerRoute(20);
client = HttpClients.custom().setConnectionManager(clientPool).build();
//Lots of logic here to set up things to be 'send()'ed

发送方式：

private String send(String message, boolean longCall){
    RequestConfig.Builder requestConfig = RequestConfig.custom();
    requestConfig.setConnectTimeout(10000);
    String url = "http://" + ip + ":" + port + "/connector";
    HttpPost httpPost;
    if(longCall){
        httpPost = longHttpPost = new HttpPost(url);
    } else {
        httpPost = new HttpPost(url);
    }
    httpPost.setConfig(requestConfig.build());
    httpPost.setHeader("Content-Type", "application/xml");
    httpPost.setHeader("charset", "UTF-8");
    httpPost.setEntity(getEntity(message)); //getEntity() is a local method that overrides AbstractHttpEntity
    try {
        if(longCall && !threadRunning){
            diePlz = false;
            ConnectionCheck watcher = new ConnectionCheck();
            watcher.start();
        }
         //httpReponse is what seems to get crossed between invocations of send()
        CloseableHttpResponse httpResponse = client.execute(longCall ? longHttpPost : httpPost);
        //more stuff here to work with response
    } catch (Exception e) {
        LOG.error(e, e);
        return null;
    } finally {
        if(longCall){
            longHttpPost.releaseConnection();
        } else {
            httpPost.releaseConnection();
        }
    }
}

主类中的嵌套线程类：

private class ConnectionCheck extends Thread implements Runnable, Serializable {
    @Override
    public void run(){
        threadRunning = true;
        try{Thread.sleep(5000);}catch(Exception e){LOG.error(e, e);}
        boolean registerReturn = register(false); //this calls send()
        if(registerReturn){
            String response = checkStatus(); //this calls send()
            if(response == null){ //if the connection we're watching drops...
                if(longHttpPost != null){
                    longHttpPost.abort(); //...then kill it
                }
            } else {
                while(response != null && !diePlz){
                    try {
                        Thread.sleep(5000);
                    } catch (Exception e){
                        LOG.error(e, e);
                        register(true);
                        threadRunning = false;
                        return;
                    }
                    response = checkStatus();
                    if(response == null){
                        if(longHttpPost != null){
                            longHttpPost.abort();
                        }
                    }
                }
                register(true); //this calls send()
                threadRunning = false;
            }
        } else {
            register(true); //this calls send()
            threadRunning = false;
        }
    }
}