HttpClientUtil

public class HttpClientUtil {private static Logger logger = Logger.getLogger(HttpClientUtil.class);private CloseableHttpClient httpClient;public static HttpResponse doGet(HttpRequest httpRequest) {HttpClientUtil httpClientUtil = new HttpClientUtil();if (httpRequest.getRequestBody()!=null&&httpRequest.getRequestBody().size()!=0)httpRequest.setUrl(formatUrl(httpRequest.getUrl(), httpRequest.getRequestBody()));logger.info(httpRequest.getUrl());HttpGet httpGet = new HttpGet(httpRequest.getUrl());return httpClientUtil.sendRequest(httpGet, httpRequest);}public static HttpResponse doPost(HttpRequest httpRequest) {HttpClientUtil httpClientUtil = new HttpClientUtil();HttpPost httpPost = new HttpPost(httpRequest.getUrl());return httpClientUtil.sendRequest(httpPost, httpRequest);}public static HttpResponse doPut(HttpRequest httpRequest) {HttpClientUtil httpClientUtil = new HttpClientUtil();HttpPut httpPut = new HttpPut(httpRequest.getUrl());return httpClientUtil.sendRequest(httpPut, httpRequest);}public static HttpResponse doDelete(HttpRequest httpRequest) {HttpClientUtil httpClientUtil = new HttpClientUtil();HttpDelete httpDelete = new HttpDelete(httpRequest.getUrl());return httpClientUtil.sendRequest(httpDelete, httpRequest);}private void init() {httpClient = HttpClients.createDefault();logger.info("初始化HTTP连接");}private HttpResponse sendRequest(HttpRequestBase httpRequestBase, HttpRequest httpRequest) {this.init();HttpResponse httpResponse = new HttpResponse();String url = httpRequest.getUrl();if (httpRequest.getHeaders() != null) {//将请求的headers放入httpRequestBase对象Map<String, String> requestHeaders = httpRequest.getHeaders();requestHeaders.forEach((key, value) -> {logger.info(key + "=" + value);httpRequestBase.setHeader(key, value);});}//判断是会为post请求，如果是添加请求参数try {if (httpRequestBase instanceof HttpEntityEnclosingRequestBase)((HttpPost) httpRequestBase).setEntity(new StringEntity(this.paramByJSON(httpRequest.getRequestBody())));//获取http请求返回的结果信息CloseableHttpResponse response = httpClient.execute(httpRequestBase);//打印并存入http请求返回的status信息logger.info(response.getStatusLine().toString());httpResponse.setStatusCode(response.getStatusLine().toString().split(" ")[1]);//打印并存入http请求返回的headers信息Header[] headers = response.getAllHeaders();Map<String, String> responseHeaders = new HashMap<String, String>();for (Header header : headers) {responseHeaders.put(header.getName(), header.getValue());}httpResponse.setHeaders(responseHeaders);//打印并存入htt请求返回的body信息HttpEntity entity = response.getEntity();String responseBody = EntityUtils.toString(entity);//IOUtils.toString(entity.getContext());//logger.info(responseBody);httpResponse.setResponseBody(responseBody);this.close();} catch (ClientProtocolException e) {logger.error("协议不支持");logger.error(e.getMessage());} catch (Exception e) {e.printStackTrace();}return httpResponse;}private static String formatUrl(String url, Map<String, String> queryParam) {String result = "";final String[] param = {""};queryParam.forEach((key, value) -> param[0] += key + "=" + value + "&");result = url + "?" + param[0].substring(0, param[0].length() - 1);return result;}private String paramByJSON(Map<String,String> param){JSONObject json=new JSONObject();param.forEach((key,value) -> json.put(key,value));logger.info(json.toString());return json.toString();}private HttpEntity paramParse(Map<String,String> param){List<NameValuePair> formParam=new ArrayList<NameValuePair>();param.forEach((key,value) -> new BasicNameValuePair(key,value));HttpEntity entity=null;try { entity =new UrlEncodedFormEntity(formParam,"utf-8");} catch(UnsupportedEncodingException e) {logger.error("字符类型不支持");logger.error(e.getMessage());}return entity;}private void close() {try {httpClient.close();logger.info("关闭HTTP连接");} catch (IOException e) {logger.info("关闭HTTP失败");logger.error(e.getMessage());}}}