http远程调用原生get、post模板
程序员文章站
2022-06-19 16:21:24
一、get方法 1 package lq.httpclient.method; 2 3 import java.io.BufferedReader; 4 import java.io.IOException; 5 import java.io.InputStreamReader; 6 import ......
一、get方法
1 package lq.httpclient.method; 2 3 import java.io.BufferedReader; 4 import java.io.IOException; 5 import java.io.InputStreamReader; 6 import java.net.HttpURLConnection; 7 import java.net.MalformedURLException; 8 import java.net.URL; 9 10 import org.junit.Test; 11 12 public class HttpGet { 13 14 @Test 15 public void test() { 16 String url = "http://127.0.0.1:8080/ccb-cloud"; 17 try { 18 URL targetUrl = new URL(url); 19 HttpURLConnection connection = (HttpURLConnection)targetUrl.openConnection(); 20 connection.setRequestMethod("GET"); 21 connection.setRequestProperty("Accept", "application/json"); 22 if(connection.getResponseCode() != 200) { 23 throw new RuntimeException(""+connection.getResponseCode()); 24 } 25 BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(connection.getInputStream())); 26 String outPut; 27 while((outPut = bufferedReader.readLine()) != null) { 28 System.out.println(outPut); 29 } 30 } catch (MalformedURLException e) { 31 e.printStackTrace(); 32 } catch (IOException e) { 33 e.printStackTrace(); 34 } 35 } 36 }
二、post方法
1 package lq.httpclient.method; 2 3 import java.io.BufferedReader; 4 import java.io.IOException; 5 import java.io.InputStreamReader; 6 import java.io.OutputStream; 7 import java.net.HttpURLConnection; 8 import java.net.MalformedURLException; 9 import java.net.URL; 10 11 import org.junit.Test; 12 13 import com.alibaba.fastjson.JSONObject; 14 15 public class HttpPost { 16 17 @Test 18 public void test() { 19 String url = "http://127.0.0.1:8080/ccb-cloud"; 20 try { 21 URL targetUrl = new URL(url); 22 HttpURLConnection connection = (HttpURLConnection)targetUrl.openConnection(); 23 connection.setRequestMethod("POST"); 24 connection.setRequestProperty("Content-Type", "application/json"); 25 //允许输入参数 26 connection.setDoOutput(true); 27 JSONObject jsonObject = new JSONObject(); 28 jsonObject.put("name", "zhangsan"); 29 byte[] bytes = jsonObject.toString().getBytes(); 30 //超时20S 31 connection.setConnectTimeout(20000); 32 OutputStream outStream = connection.getOutputStream(); 33 outStream.write(bytes); 34 outStream.flush(); 35 outStream.close(); 36 if(connection.getResponseCode() != 200) { 37 throw new RuntimeException(""+connection.getResponseCode()); 38 } 39 BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(connection.getInputStream())); 40 String outPut; 41 while((outPut = bufferedReader.readLine()) != null) { 42 System.out.println(outPut); 43 } 44 } catch (MalformedURLException e) { 45 e.printStackTrace(); 46 } catch (IOException e) { 47 e.printStackTrace(); 48 }finally { 49 System.out.println("ends"); 50 } 51 } 52 }
希望对大家有所帮助,也可以参考封装好的httpClient方法
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