下面是我简单的记录接口
/*** POST---有参测试(对象参数)** @date 2020年10月13日 下午4:18:50*/public static String httpClientPostForm(String url,Map map) {String t="";// 获得Http客户端(可以理解为:你得先有一个浏览器;注意:实际上HttpClient与浏览器是不一样的)CloseableHttpClient httpClient = HttpClientBuilder.create().build();// 创建Post请求HttpPost httpPost = new HttpPost(url);// 我这里利用阿里的fastjson，将Object转换为json字符串;// (需要导入com.alibaba.fastjson.JSON包)String jsonString = JSON.toJSONString(map);StringEntity entity = new StringEntity(jsonString, "UTF-8");// post请求是将参数放在请求体里面传过去的;这里将entity放入post请求体中httpPost.setEntity(entity);httpPost.setHeader("Content-Type", "application/json;charset=utf8");// 响应模型CloseableHttpResponse response = null;try {// 由客户端执行(发送)Post请求response = httpClient.execute(httpPost);// 从响应模型中获取响应实体HttpEntity responseEntity = response.getEntity();System.out.println("响应状态为:" + response.getStatusLine());if (responseEntity != null) {t= EntityUtils.toString(responseEntity);System.out.println("响应内容长度为:" + responseEntity.getContentLength());System.out.println("响应内容为:" + t);}}catch (Exception e) {e.printStackTrace();} finally {try {// 释放资源if (httpClient != null) {httpClient.close();}if (response != null) {response.close();}} catch (IOException e) {e.printStackTrace();}}return t;}
调用也非常简单(修改下调用类名)
String createRes = this.httpClientPostForm("完整的URL及调用方法", "Map(相关参数)");