HttpClient解决并发不足导致交易掉单问题

主要解决金融上游并发不足的问题：
	此处分为公有和私有连接池:
	私有连接池：
	注：首先要在static静态池中放一个存储http连接池的Map
	private final static Map<String,PoolingHttpClientConnectionManager> ClientPoolMap = new HashMap<String,PoolingHttpClientConnectionManager>();
	/**
	* @author: WJJ
	* @date: 2017年11月24日 上午9:33:10
	* @Description: TODO(调用渠道专属连接池,返回一个连接池)
	* @param chcId 渠道专属ClientID
	* @param soTimeout
	* @param reqTimeout
	* @param connectionTimeout
	* @param maxClient
	* @return
	*/
	public static PoolingHttpClientConnectionManager getPriHttpClient(String chcId,int soTimeout,int reqTimeout,int connectionTimeout,int maxClient){
	PoolingHttpClientConnectionManager priClientPool = ClientPoolMap.get(chcId);//ClientPoolMap(key为chcId,value为对应的私有连接池)
	synchronized (chcId){
	if(priClientPool==null){
	priClientPool = getNewClientPool(maxClient); //获取一个新的连接池
	ClientPoolMap.put(chcId, priClientPool);
	}
	}
	return priClientPool;
	}
	/**
	* @author: WJJ
	* @date: 2017年11月24日 上午10:03:03
	* @Description: TODO(创建新的连接池)
	* @param maxClient
	* @return
	*/
	private static PoolingHttpClientConnectionManager getNewClientPool(int maxClient){
	PoolingHttpClientConnectionManager priClientPool = new PoolingHttpClientConnectionManager();
	priClientPool.setMaxTotal(maxClient);
	pubClientPool.setDefaultMaxPerRoute(maxClient);
	return priClientPool;
	}
	/**
	* @author: WJJ
	* @date: 2017年11月24日 上午10:03:23
	* @Description: TODO(根据渠道的连接池返回一个连接)
	* @param soTimeout
	* @param reqTimeout
	* @param connectionTimeout
	* @param priClientPool
	* @return
	*/
	public static CloseableHttpClient getNewHttpClient(int soTimeout,int reqTimeout,int connectionTimeout,PoolingHttpClientConnectionManager priClientPool){
	CloseableHttpClient httpClient =null;
	RequestConfig requestConfig =RequestConfig.custom()
	.setSocketTimeout(soTimeout)
	.setConnectTimeout(connectionTimeout)
	.setConnectionRequestTimeout(reqTimeout)
	.build();
	httpClient = HttpClients.custom()
	.setConnectionManager(priClientPool)
	.setConnectionManagerShared(true)
	.setDefaultRequestConfig(requestConfig).build();
	return httpClient;
	}
	公有：
	首先要在static静态池中创建一个PoolingHttpClientConnectionManager
	private static PoolingHttpClientConnectionManager pubClientPool =null;
	并在class加载时新建：
	static{
	String MAX_CLIENT = Configuration.getInstance().getValue("MAX_CLIENT");
	Integer maxClient = Integer.parseInt(MAX_CLIENT);
	LayeredConnectionSocketFactory sslsf = null;
	try {
	sslsf = new SSLConnectionSocketFactory(SSLContext.getDefault());
	} catch (NoSuchAlgorithmException e) {
	e.printStackTrace();
	}
	Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory> create()
	.register("https", sslsf)
	.register("http", new PlainConnectionSocketFactory())
	.build();
	pubClientPool = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
	pubClientPool.setMaxTotal(maxClient);
	pubClientPool.setDefaultMaxPerRoute(maxClient);
	}
	/**
	* @author: WJJ
	* @date: 2017年11月24日 上午9:55:31
	* @Description: TODO(调用公用连接池，返回一个连接)
	* @param soTimeout
	* @param reqTimeout
	* @param connectionTimeout
	* @return
	*/
	public static HttpClient getPubHttpClient(int soTimeout,int reqTimeout,int connectionTimeout){
	HttpClient httpClient =null;
	try{
	RequestConfig requestConfig =RequestConfig.custom()
	.setSocketTimeout(10000)
	.setConnectTimeout(10000)
	.setConnectionRequestTimeout(15000)
	.build();
	httpClient = HttpClients.custom()
	.setConnectionManager(pubClientPool)
	.setConnectionManagerShared(true)
	.setDefaultRequestConfig(requestConfig).build();
	}catch(Exception e){
	e.printStackTrace();
	}
	return httpClient;
	}
	/**
	* @author: WJJ
	* @date: 2017年11月24日 上午10:20:02
	* @Description: TODO(根据传入来的httpClient发送数据)
	* @param entity
	* @param trans_url
	* @param channlClient
	* @return
	* @throws Exception
	*/
	public static String doPostByClient(HttpEntity entity, String trans_url,HttpClient channlClient) throws Exception {
	HttpPost postMethod = new HttpPost(trans_url);
	try {
	postMethod.setEntity(entity);             postMethod.setHeader("connection", "close");//设置这个为了在Httpclient发送后 彻底把tcp链路断掉  不然一直保持会有大量的close_wait出现
	HttpResponse resp = channlClient.execute(postMethod);
	InputStream inResp=resp.getEntity().getContent();
	String str = IOUtils.toString(inResp, URL_PARAM_DECODECHARSET_UTF8);
	inResp.close();
	int statusCode = resp.getStatusLine().getStatusCode();
	if (200 == statusCode) {
	return str;
	} else {
	logger.info("返回错误码:" + statusCode);
	throw new Exception("通讯错误" + String.valueOf(statusCode));
	}
	} catch (Exception e) {
	e.printStackTrace();
	throw e;
	} finally {
	if (postMethod != null) {
	postMethod.releaseConnection();
	}
	}
	}