java http HttpClientUtil 工具类

来源：互联网发布：淘宝什么叫黑车编辑：程序博客网时间：2024/05/23 21:54
public class HttpClientUtil {    private static final Log logger = LogFactory.getLog(UploaderController.class);    private static final String USER_AGENT = "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.2.16) Gecko/20110319 BTRS96900 Firefox/3.6.16";    public static String getSourceByUrl(final String url) {        HttpClient httpClient = new HttpClient();        String str = null;        PostMethod getMethod = new PostMethod(url);        getMethod.setRequestHeader("User-Agent",USER_AGENT);        getMethod.getParams().setParameter("http.protocol.cookie-policy", CookiePolicy.BROWSER_COMPATIBILITY);        getMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(0, false));        getMethod.getParams().setParameter(HttpMethodParams.SO_TIMEOUT, 0);        httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(0);        try {            int statusCode = httpClient.executeMethod(getMethod);            if (statusCode != HttpStatus.SC_OK) {                logger.error("Method failed: " + getMethod.getStatusLine());            }            str = IOUtils.toString(getMethod.getResponseBodyAsStream(), "UTF-8");        } catch (UnknownHostException e) {            logger.error("UnknownHostException: Please check your provided http address!");        } catch (HttpException e) {            logger.error("HttpException: Please check your provided http address!");        } catch (ConnectException e) {            logger.error("IOException: Please check your provided http address!");        } catch (IOException e) {            logger.error("IOException: Please check your provided http address!");        } finally {            getMethod.releaseConnection();        }        return str;    }    public static String post(String url, NameValuePair[] params) {        HttpClient httpClient = new HttpClient();        String str = null;        PostMethod getMethod = new PostMethod(url);        getMethod.setRequestHeader("User-Agent",USER_AGENT);        getMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(0, false));        getMethod.getParams().setParameter(HttpMethodParams.SO_TIMEOUT, 10000);        httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(30000);        httpClient.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET, "UTF-8");        if (params != null) {            getMethod.addParameters(params);        }        try {            int statusCode = httpClient.executeMethod(getMethod);            if (statusCode != HttpStatus.SC_OK) {                logger.error("Method failed: " + getMethod.getStatusLine() + ",url:[" + url + "]");            }            str = getMethod.getResponseBodyAsString();        } catch (Exception e) {            logger.error("HttpClientUtil post error.url:[" + url + "]", e);        } finally {            getMethod.releaseConnection();        }        return str;    }        public static String get(String url) {        HttpClient httpClient = new HttpClient();        String str = null;        GetMethod getMethod = new GetMethod(url);        getMethod.setRequestHeader("User-Agent",USER_AGENT);        getMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(0, false));        getMethod.getParams().setParameter(HttpMethodParams.SO_TIMEOUT, 10000);        httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(30000);        httpClient.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET, "UTF-8");        try {            int statusCode = httpClient.executeMethod(getMethod);            if (statusCode != HttpStatus.SC_OK) {                logger.error("Method failed: " + getMethod.getStatusLine() + ",url:[" + url + "]");            }            str = getMethod.getResponseBodyAsString();        } catch (Exception e) {            logger.error("HttpClientUtil get error.url:[" + url + "]", e);        } finally {            getMethod.releaseConnection();        }        return str;    }}
0 0