HttpClient使用

1.get请求

StringBuffer responseSB = new StringBuffer();

HttpClient client = HttpClients.createDefault();

HttpGet request = new HttpGet(URL);

request.addHeader("Content-type", "application/json");
request.addHeader("Date", Date);

HttpResponse response = client.execute(request);
HttpEntity entity = response.getEntity();
if(response.getStatusLine().getStatusCode() == 200);{
    BufferedReader reader = new BufferedReader(new InputStreamReader(entity.getContent(), "UTF-8"));
    String line = null;
    while ((line = reader.readLine()) != null) {
        responseSB.append(line);
    }
    reader.close();}
2.post请求

HttpClient  client = HttpClients.createDefault();
 HttpPost post = new HttpPost(URL + URi + query);
 post.setEntity(new StringEntity(body,"UTF-8"));
 post.addHeader("Content-Type","application/json");
     post.addHeader("Date",Date);

HttpResponse  response = client.execute(post);
  HttpEntity entity = response.getEntity();
  if(response.getStatusLine().getStatusCode() == 200);{
  BufferedReader reader = new BufferedReader(new InputStreamReader(entity.getContent(), "UTF-8"));
  String line = null;
  while ((line = reader.readLine()) != null) {
      responseSB.append(line);
  }
  reader.close();}