使用HttpClient进行HTTP GET请求及重定向处理

public static String httpGetRedirect(CloseableHttpClient httpClient,String url) {
    
HttpGet httpget = null;

CloseableHttpResponse response = null;

String txtcontent = null;

        try {
        
          httpget = new HttpGet(url);
          
             response = httpClient.execute(httpget);
            
            HttpEntity entity = response.getEntity();
           
            if(response.getStatusLine().getStatusCode() == HttpStatus.SC_OK){
            
           // ·µ»Øjson¸ñʽ×Ö·û´®          
              String result = EntityUtils.toString(entity,"UTF-8");
                            
              int indexStart = result.indexOf("LT");
                   
              int endIndex =result.indexOf("tcjk.com");
              
               txtcontent  = result.substring(indexStart,endIndex);

               txtcontent = txtcontent+"tcjk.com";
               
         System.out.println("txtcontent - "+txtcontent);