以前寫百度貼吧搶二樓程序遇到的問題，此處做一個記錄。

httpclient多次進行post請求的時候，會阻塞，無法循環執行（不知道現在的版本還會不會）。網上查過解決方法，在循環體內每次new一個httpclient可以解決，但是感覺不是常規解決方案，最終通過以下方式解決。

問題偽代碼如下：

public static void main(String[] args) {
        HttpClient httpClient = new HttpClient();
        while (true){
            HttpGet get = new HttpGet("http://test.com");
            HttpResponse responseGet = httpClient.execute(get);
            String[] responseStr = EntityUtils.toString(response.getEntity());
            for(i=0;i<responseStr.size();i++){
                String tempStr = responseStr[i];
                HttpPost post = new HttpPost("http://test.com");
                Map<String, String> paramMap = new HashMap<String, String>();
                paramMap.put("id","123");
                paramMap.put("name", postName);
                post.setParam(paramMap);
                HttpResponse responsePost = httpClient.execute(post);//第一次循環可以執行到這一句,下一次就一直卡死在此處.
                //do something
            }
        }
    }
    //只能循環post提交一次,第二次就卡在注釋處不動,也不報錯

解決方式很簡單，其實是因為response結果集未關閉，在做完數據結果處理后關閉結果集即可。修正后代碼如下：

public static void main(String[] args) {
        HttpClient httpClient = new HttpClient();
        while (true){
            HttpGet get = new HttpGet("http://test.com");
            HttpResponse responseGet = httpClient.execute(get);
            String[] responseStr = EntityUtils.toString(response.getEntity());
            for(i=0;i<responseStr.size();i++){
                String tempStr = responseStr[i];
                HttpPost post = new HttpPost("http://test.com");
                Map<String, String> paramMap = new HashMap<String, String>();
                paramMap.put("id","123");
                paramMap.put("name", postName);
                post.setParam(paramMap);
                HttpResponse responsePost = httpClient.execute(post);//第一次循環可以執行到這一句,下一次就一直卡死在此處.
                //do something
                responsePost.getEntity().getContent().close();//關閉結果集
            }
        }
    }

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