java实现emqtt的消息发布

package com.hthl.xxtd.sdk.push.emqtt;import javax.resource.spi.CommException;import org.apache.commons.codec.binary.Base64;import org.apache.commons.httpclient.Header;import org.apache.commons.httpclient.HttpClient;import org.apache.commons.httpclient.HttpStatus;import org.apache.commons.httpclient.NameValuePair;import org.apache.commons.httpclient.methods.PostMethod;import org.apache.log4j.Logger;import com.hthl.xxtd.util.DateUtil;/** * EMQ客户端工具 * */public class EmqHttpUtil {private static final Logger logger = Logger.getLogger(EmqHttpUtil.class);public static void main(String[] args) throws Exception {NameValuePair[] data={new NameValuePair("qos", "1"),new NameValuePair("retain", "0"),new NameValuePair("topic", "hthl/hyt"),new NameValuePair("message", "大吉大利,今晚吃鸡:"+DateUtil.getTimes())};System.out.println(httpPost("http://192.168.20.38:6060/mqtt/publish", data, "UTF-8",getHeader()));}/** * 构造Basic Auth认证头信息 * @throws Exception */private static String getHeader() throws Exception { String auth = "hthl_sub" + ":" + "123456";byte[] encodedAuth=Base64.encodeBase64(auth.getBytes("UTF-8"));String authHeader = "Basic " +new String(encodedAuth);return authHeader;}/** * HTTP/HTTPS POST * @param url 接口地址 * @param data 请求数据 * @param encoding 编码方式 * @return String * @throws CommException */public static String httpPost(String url, NameValuePair[] data,String encoding,String authHeader)throws Exception {HttpClient httpClient = new HttpClient();PostMethod postMethod = new PostMethod(url);// 设置编码,http post同时会用编码进行url.encodehttpClient.getParams().setContentCharset(encoding);        postMethod.addRequestHeader("Content-Type","application/x-www-form-urlencoded;charset="+encoding);        postMethod.addRequestHeader("Authorization", authHeader);// 将表单的值放入postMethod中postMethod.setRequestBody(data);// 执行postMethodint statusCode =httpClient.executeMethod(postMethod); logger.info("Response status code: " + statusCode);//返回200为成功// HttpClient对于要求接受后继服务的请求，POST和PUT等不能自动处理转发// 301或者302if (statusCode == HttpStatus.SC_MOVED_PERMANENTLY|| statusCode == HttpStatus.SC_MOVED_TEMPORARILY) {// 从头中取出转向的地址Header locationHeader = postMethod.getResponseHeader("location");String location = null;if (locationHeader != null) {location = locationHeader.getValue();logger.error("The page was redirected to:" + location);} else {logger.error("Location field value is null.");}return null;} else {return postMethod.getResponseBodyAsString();}}}