设置HAMC插件
postman模拟请发发送：
Java代码：
HMAC-SHA-256工具类
1 import java.security.InvalidKeyException;
2 import java.security.NoSuchAlgorithmException;
3 import java.util.Formatter;
4 import javax.crypto.Mac;
5 import javax.crypto.spec.SecretKeySpec;
6
7 public class HmacSha256Util {
8
9 private static final String HMAC_SHA1_ALGORITHM = "HmacSHA256";
10 private static String toHexString(byte[] bytes) {
11 Formatter formatter = new Formatter();
12 for (byte b : bytes) {
13 formatter.format("%02x", b);
14 }
15 return formatter.toString();
16 }
17
18 public static String signature(String data, String key) throws NoSuchAlgorithmException, InvalidKeyException {
19 SecretKeySpec signingKey = new SecretKeySpec(key.getBytes(), HMAC_SHA1_ALGORITHM);
20 Mac mac = Mac.getInstance(HMAC_SHA1_ALGORITHM);
21 mac.init(signingKey);
22 return toHexString(mac.doFinal(data.getBytes()));
23 }
24
25 public static byte[] signatureReturnBytes(String data, String key) throws NoSuchAlgorithmException, InvalidKeyException {
26 SecretKeySpec signingKey = new SecretKeySpec(key.getBytes(), HMAC_SHA1_ALGORITHM);
27 Mac mac = Mac.getInstance(HMAC_SHA1_ALGORITHM);
28 mac.init(signingKey);
29 return mac.doFinal(data.getBytes());
30 }
31
32 }
SHA-256 工具方法：
public static String SHA256(String param) {
if (StringUtils.isBlank(param)) {
throw new IllegalArgumentException("param can not be null");
}
try {
byte[] bytes = param.getBytes("utf-8");
final MessageDigest md = MessageDigest.getInstance("SHA-256");
md.reset();
md.update(bytes);
final Base64 base64 = new Base64();
final byte[] enbytes = base64.encode(md.digest());
return new String(enbytes);
} catch (final NoSuchAlgorithmException e) {
throw new IllegalArgumentException("unknown algorithm SHA-256");
} catch (UnsupportedEncodingException e) {
throw new RuntimeException(e);
}
}测试：
1 public class Test01 {
2
3 @Test
4 public void getSHA256() throws UnsupportedEncodingException, InvalidKeyException, NoSuchAlgorithmException{
5 StringBuilder stb = new StringBuilder();
6 String content = stb.append("Date: ").append(getTime()).append("\n").append("abc: ").append("123456").append("\n").append("Digest: SHA-256=").append(getBody()).toString();
7 System.out.println("签名前的数据："+content);
8 String secret="kOI6ZHLGdgd2GB8osYZSl7QDCrHzAFg1";
9 String signature2 = new String(Base64.getEncoder().encode(HmacSha256Util.signatureReturnBytes(content, secret)), "US-ASCII");
10 System.out.println("显示指定编码[推荐] signature:"+signature2);
11
12 }
13 public String getTime() {
14 Date d=new Date();
15 DateFormat format=new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss z", Locale.US);
16 format.setTimeZone(TimeZone.getTimeZone("GMT"));
17 String hdate = format.format(d);
18 return hdate;
19 }
20
21
22 public String getBody() throws UnsupportedEncodingException {
23 String body = "{\"item\":[{\"address\":\"hpSg3NXvBAdaDcaeGQiPFF9tciW9BmcQv8Qm\"}]}";
24 String sha2562 = Sha256Util.SHA256(body);
25 return sha2562;
26 }
27
28 }最经过postman调试成功访问