http client java_使用HttpClient发送java对象到服务器

喜欢ヅ旅行 2022-11-02 11:51 106阅读 0赞

1 packagecom.glbpay.ivs.common.util.https;2 importcom.alibaba.fastjson.JSON;3 importorg.apache.http.HttpEntity;4

5 importjava.io.InputStream;6 importjava.io.OutputStream;7 importorg.apache.http.client.ClientProtocolException;8 importorg.apache.http.client.methods.CloseableHttpResponse;9 importorg.apache.http.client.methods.HttpPost;10 importorg.apache.http.entity.StringEntity;11 importorg.apache.http.impl.client.CloseableHttpClient;12 importorg.apache.http.impl.client.HttpClientBuilder;13 importorg.apache.http.util.EntityUtils;14 importjava.io.IOException;15 importjava.net.HttpURLConnection;16 importjava.net.MalformedURLException;17 importjava.net.URL;18

20 public classNewHttpClient \{21 public staticString doPost(String url, Object myclass) \{22 CloseableHttpClient httpClient =HttpClientBuilder.create().build();23 HttpPost posturl = newHttpPost(url);24 String result = null;25 String jsonSting =JSON.toJSONString(myclass);26 StringEntity entity = new StringEntity(jsonSting, "UTF-8");27 posturl.setEntity(entity);28 posturl.setHeader("Content-Type", "application/json;charset=utf8");29 //响应模型

30 CloseableHttpResponse response = null;31 try\{32 //由客户端执行(发送)Post请求

33 +6 response =httpClient.execute(posturl);34 //从响应模型中获取响应实体

35 HttpEntity responseEntity =response.getEntity();36

37 System.out.println("响应状态为:" +response.getStatusLine());38 if (responseEntity != null) \{39 System.out.println("响应内容长度为:" +responseEntity.getContentLength());40 System.out.println("响应内容为:" +EntityUtils.toString(responseEntity));41 returnEntityUtils.toString(responseEntity);42 \}43 \} catch(ClientProtocolException e) \{44 e.printStackTrace();45 \} catch(Exception e) \{46 e.printStackTrace();47 \} finally\{48 try\{49 //释放资源

50 if (httpClient != null) \{51 httpClient.close();52 \}53 if (response != null) \{54 response.close();55 \}56 \} catch(IOException e) \{57 e.printStackTrace();58 \}59 \}60 return null;61 \}62 public staticString dourl(String url,Object clzz)\{63 try\{64 String jsonString =JSON.toJSONString(clzz);65 URL url1 = newURL(url);66 HttpURLConnection conn =(HttpURLConnection) url1.openConnection();67 //设置允许输出

68 conn.setDoOutput(true);69 //设置允许输入

70 conn.setDoInput(true);71 //设置不用缓存

72 conn.setUseCaches(false);73 conn.setRequestMethod("POST");74

75 //设置传递方式

76 conn.setRequestProperty("contentType", "application/json");77 //设置维持长连接

78 conn.setRequestProperty("Connection", "Keep-Alive");79 //设置文件字符集:

80 conn.setRequestProperty("Charset", "UTF-8");81 //开始请求

82 byte\[\] bytes =jsonString.toString().getBytes();83 //写流

84 OutputStream stream =conn.getOutputStream();85 stream.write(bytes);86 stream.flush();87 stream.close();88 int resultCode=conn.getResponseCode();89 if(conn.getResponseCode()==200)\{90 InputStream inputStream =conn.getInputStream();91 byte\[\] bytes1 = new byte\[inputStream.available()\];92 inputStream.read(bytes1);93 //转字符串

94 String s = newString(bytes);95 System.out.println(s);96 returns;97 \}else\{98 //获取响应内容

99 int code =conn.getResponseCode();100 String responseMessage =conn.getResponseMessage();101 System.out.println(code);102 String s =String.valueOf(code);103 return "响应状态码是:"+s+"响应内容是：======="+responseMessage;104 \}105 \} catch(MalformedURLException e) \{106 e.printStackTrace();107 \} catch(IOException e) \{108 e.printStackTrace();109 \}110 return null;111 \}112

113 \}