复制

    public boolean visitURL(String url) {                 // Commons HttpClient 3.1         HttpClient client = new HttpClient();         HttpMethod method = new GetMethod(url);

        // Provide custom retry handler is 简单解决necessary         method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(3, false));                 boolean rs = false;                 try {                         // Execute the method.             int statusCode = client.executeMethod(method);

            if (statusCode != HttpStatus.SC_OK) {                 logger.error("Method failed: " + method.getStatusLine());             }             else {                 rs = true;                }

        } catch (HttpException e) {             logger.error("Fatal protocol violation: " + e.getMessage());         } catch (IOException e) {             logger.error("Fatal transport error: " + e.getMessage());         } finally {             // Release the connection.             method.releaseConnection();         }                 return rs;     }

1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.24.25.26.27.28.29.30.31.32.33.34.35.36.37.38.39.40.41.42.43.