Native java sends http request
package com.cyz; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.net.URL; import java.net.URLConnection; import java.util.List; import java.util.Map; /** * @author cyz * @since 2023/11/8 9:50 */ public class CustHttp { public static String post(String targetUrl, String params) throws IOException { URL url = new URL(targetUrl); PrintWriter out = null; BufferedReader in = null; try { URLConnection urlConnection = url.openConnection(); urlConnection.setRequestProperty("Request-Origion", "SwaggerBootstrapUi"); urlConnection.setRequestProperty("accept", "*/*"); urlConnection.setRequestProperty("Content-Type", "application/json"); //Post request needs to use the following two urlConnection.setDoOutput(true); urlConnection.setDoInput(true); out = new PrintWriter(urlConnection.getOutputStream()); out.write(params); out.flush(); in = new BufferedReader(new InputStreamReader(urlConnection.getInputStream())); String res = ""; String line = ""; while ((line = in.readLine()) != null) { res + = line; } return res; } finally { if (out != null) { out.close(); } if (in != null) { in.close(); } } } public static String get(String targetUrl, String token) throws IOException { URL url = new URL(targetUrl); BufferedReader in = null; try { URLConnection connection = url.openConnection(); connection.setRequestProperty("accept", "*/*"); connection.setRequestProperty("connection", "Keep-Alive"); connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); connection.setRequestProperty("Authorization", token); // Establish the actual connection connection.connect(); // Get all response header fields Map<String, List<String>> map = connection.getHeaderFields(); // Iterate through all response header fields for (String key : map.keySet()) { System.out.println(key + "--->" + map.get(key)); } //Define the BufferedReader input stream to read the response of the URL in = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8")); String res = ""; String line = ""; while ((line = in.readLine()) != null) { res + = line; } return res; } finally { if (in != null) { in.close(); } } } public static void main(String[] args) throws IOException { String post = post("http://10.21.1.154:19500/api/v1/user/login", "{\ " + "\t"captcha": "1",\ " + "\t"code": "1",\ " + "\t"password": "123456",\ " + "\t"username": "superAdmin"\ " + "}"); System.out.println(post); String s = get("http://10.21.1.154:19500/api/v1/user/getBaseInfo?opId=1808", "/bv1CXBJczpJm6d46e + KkT2qNC00Bd9L/b9Y4Awq5P3dEaQySoJP1uCOG3uP9ubydsBSCeD/UsUoz" + "7ZHTOMeNCQtEuEYeu82NV4QahqWJ8zcDgPpC5ev + wII7ApYK/z54mrfvKW2/A4ferRB4EJXuwfzoRfm3RRh" + "THTiMnRuLY1BqUZP + 3rCpcinWpeCpZVGEPnImU4ZDmUNtOG4pn0Dexk3UMp838a + sgkXcRJKLCcvQd0i2Jez7MiJ" + "iQrGedZVN6XXiPViETRV7NQNhBQCqZO4C9P + c9/tBuY2Qq6WrZhNhxJvphYiaIuG + zyjL + ZkYQgeKeVo6waecCnnLoBZV2" + "nPmbbAmiqCrmNfueJG3wv/lBvVyKg + C1n1rjKnTIxkmVbC8v44TwBY3gi6HaBf4IFxf/hoiBgv1WqJZfPf4GpL6f2e0nhN" + "s4ho5M6jQTmmjAKOei8P3FtaIogvsc9HPg=="); System.out.println(s); } }
Use Hutool tool class
rely
<dependency> <groupId>cn.hutool</groupId> <artifactId>hutool-all</artifactId> <version>5.8.18</version> </dependency>
HttpRequest
HttpResponse getBaidu = HttpRequest.get("www.baidu.com") .execute(); System.out.println(getBaidu.body()); HttpResponse execute = HttpRequest.post("http://10.21.1.154:19500/api/v1/user/login") .header("Request-Origion", "SwaggerBootstrapUi") .header("accept", "*/*") .header("Content-Type", "application/json") .body("{\ " + "\t"captcha": "1",\ " + "\t"code": "1",\ " + "\t"password": "123456",\ " + "\t"username": "superAdmin"\ " + "}").execute(); System.out.println(execute.body());
HttpUtil
String s = HttpUtil.get("www.baidu.com"); System.out.println(s); HttpResponse execute = HttpUtil.createPost("http://10.21.1.154:19500/api/v1/user/login") .header("Request-Origion", "SwaggerBootstrapUi") .header("accept", "*/*") .header("Content-Type", "application/json") .body("{\ " + "\t"captcha": "1",\ " + "\t"code": "1",\ " + "\t"password": "123456",\ " + "\t"username": "superAdmin"\ " + "}").execute(); System.out.println(execute.body());
resttemplate
(omitted)