多头借贷风险接口 Java版本调用方法与应用场景

import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import java.net.*;
import java.io.*;
import java.util.Base64;
import org.json.JSONObject;


public class TianyuanApiJava {
private static final String URL_API = "https://api.tianyuanapi.com/api/v1/JRZQ9E2A?t=1730198372111";
private static final String ACCESS_ID = "your_access_id";
private static final String ACCESS_KEY = "your_access_key_16b";


public static void main(String[] args) {
try {
JSONObject payload = new JSONObject();
payload.put("mobile_no", "13800000000");
payload.put("id_card", "110101199001010000");
payload.put("name", "张三");
payload.put("auth_authorize_file_code", "AUTH202511");


String encrypted = encrypt(payload.toString(), ACCESS_KEY);
JSONObject requestData = new JSONObject();
requestData.put("data", encrypted);


HttpURLConnection conn = (HttpURLConnection) new URL(URL_API).openConnection();
conn.setRequestMethod("POST");
conn.setRequestProperty("Access-Id", ACCESS_ID);
conn.setRequestProperty("Content-Type", "application/json");
conn.setDoOutput(true);


OutputStream os = conn.getOutputStream();
os.write(requestData.toString().getBytes());
os.flush();
os.close();


BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
StringBuilder response = new StringBuilder();
String line;
while ((line = br.readLine()) != null) response.append(line);
br.close();


JSONObject resp = new JSONObject(response.toString());
if (resp.getInt("code") == 200) {
String decrypted = decrypt(resp.getString("data"), ACCESS_KEY);
System.out.println("解密结果：" + decrypted);
} else {
System.out.println("接口错误：" + resp.getString("message"));
}
} catch (Exception e) {
e.printStackTrace();
}
}


private static String encrypt(String plain, String key) throws Exception {
byte[] iv = new byte[16];
for (int i = 0; i < 16; i++) iv[i] = (byte) (Math.random() * 256);
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
SecretKeySpec skey = new SecretKeySpec(key.getBytes(), "AES");
cipher.init(Cipher.ENCRYPT_MODE, skey, new IvParameterSpec(iv));
byte[] enc = cipher.doFinal(plain.getBytes());
byte[] result = new byte[iv.length + enc.length];
System.arraycopy(iv, 0, result, 0, iv.length);
System.arraycopy(enc, 0, result, iv.length, enc.length);
return Base64.getEncoder().encodeToString(result);
}


private static String decrypt(String data, String key) throws Exception {
byte[] raw = Base64.getDecoder().decode(data);
byte[] iv = new byte[16];
System.arraycopy(raw, 0, iv, 0, 16);
byte[] enc = new byte[raw.length - 16];
System.arraycopy(raw, 16, enc, 0, enc.length);
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
SecretKeySpec skey = new SecretKeySpec(key.getBytes(), "AES");
cipher.init(Cipher.DECRYPT_MODE, skey, new IvParameterSpec(iv));
return new String(cipher.doFinal(enc));
}
}