http发送post请求，发送参数为实体

public static String post(JSONObject json, String url) {

String result = "";

HttpPost post = new HttpPost(url);

try {

CloseableHttpClient httpClient = HttpClients.createDefault(); post.setHeader("Content-Type", "application/json;charset=utf-8"); post.addHeader("Authorization", "Basic YWRtaW46");

StringEntity postingString = new StringEntity(json.toString(), "utf-8"); post.setEntity(postingString);

HttpResponse response = httpClient.execute(post);

InputStream in = response.getEntity().getContent(); BufferedReader br = new BufferedReader(new InputStreamReader(in, "utf-8"));

StringBuilder strber = new StringBuilder();

String line = null;

while ((line = br.readLine()) != null) {

strber.append(line + '\n'); }

br.close();

in.close(); result = strber.toString(); if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {

result = "服务器异常"; } } catch (Exception e) { System.out.println("请求异常");

throw new RuntimeException(e);

} finally { post.abort(); }

return result; }

EntityDto dto= new EntityDto ();

dto.setUname("哈哈");

dto.setAge(18);

dto.setSalary(12000);

String response = HttpUtil2.post((JSONObject) JSONObject.toJSON(autoTestDto), autoTestUrl);