public void testMethodpost(){
//初始化http請求
CloseableHttpClient httpclient=HttpClientBuilder.create().build();
String url = "xxxxxxxxxxxxx";
//初始化http請求
HttpPost post=new HttpPost(url);
//設置請求頭
post.setHeader("Content-Type","application/json;charset=UTF-8");
try {

String paramJson="{\"userName\":\"xxxxxxx\",\"passWord\":\"JVGK+jDLU7\"}";

// JSONObject jsonObject = JSON.parseObject(paramJson);
//
// System.out.println(jsonObject);

// String param=JSON.toJSONString(jsonObject);

// 提交參數(shù)發(fā)送請求StringEntity requestEntity = new StringEntity(paramJson,"UTF-8");post.setEntity(requestEntity);CloseableHttpResponse response=httpclient.execute(post);HttpEntity entity=response.getEntity();String entityStr =EntityUtils.toString(entity,"UTF-8");System.out.println(entityStr);//httpclient.close();} catch (ClientProtocolException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} }遇到的坑： 1.前期使用POST數(shù)據(jù)時，用了UrlEncodedFormEntity()這個方法 結果服務器返回500，打印的請求參數(shù)為：key=value&key2=value2格式解決辦法：使用 StringEntity requestEntity = new StringEntity(paramJson,"UTF-8");辦法解決

轉載于:https://blog.51cto.com/12390959/2372182

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