import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.UnknownHostException;
public class GetToken {
public static final String POST_URL = "https://c2bt4.maxuscloud.com/oauth/token";
/**
* 调用Post接口
*/
public static void httpURLConnectionPOST(){
try {
URL url = new URL(POST_URL);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setRequestMethod("POST");
// post请求缓存设为false
connection.setUseCaches(false);
// 设置该HttpURLConnection实例是否自动执行重定向
connection.setInstanceFollowRedirects(true);
connection.setRequestProperty("Content-Type","application/json;charset=utf-8");
connection.connect();
DataOutputStream dataout = new DataOutputStream(connection.getOutputStream());
String param = "client_id=bc8f844701de11e98372fa163ed907b0&client_secret=cda0673501de11e98372fa163ed907b0&scope=read write&grant_type=client_credentials";
dataout.writeBytes(param);
dataout.flush();
dataout.close();
BufferedReader bf = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));
String line;
StringBuilder sb = new StringBuilder(); // 用来存储响应数据
// 循环读取流,若不到结尾处
while ((line = bf.readLine()) != null) {
//sb.append(bf.readLine());
sb.append(line).append(System.getProperty("line.separator"));
}
bf.close(); // 重要且易忽略步骤 (关闭流,切记!)
connection.disconnect(); // 销毁连接
System.out.println(sb.toString());
}catch (Exception e){
e.printStackTrace();
}
}
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