From ce88de4891b87c3b7b2750575e15d6e48d518852 Mon Sep 17 00:00:00 2001
From: hxb <hxb@hdlchina.com.cn>
Date: 星期四, 24 十月 2024 10:39:12 +0800
Subject: [PATCH] 增加云端库
---
HDLLinkPMSdk/src/main/java/com/hdl/linkpm/sdk/utils/HDLMD5Utils.java | 185 ++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 185 insertions(+), 0 deletions(-)
diff --git a/HDLLinkPMSdk/src/main/java/com/hdl/linkpm/sdk/utils/HDLMD5Utils.java b/HDLLinkPMSdk/src/main/java/com/hdl/linkpm/sdk/utils/HDLMD5Utils.java
new file mode 100644
index 0000000..6559b86
--- /dev/null
+++ b/HDLLinkPMSdk/src/main/java/com/hdl/linkpm/sdk/utils/HDLMD5Utils.java
@@ -0,0 +1,185 @@
+package com.hdl.linkpm.sdk.utils;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.UnsupportedEncodingException;
+import java.math.BigInteger;
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+/**
+ * Created by Tong on 2021/11/3.
+ */
+public final class HDLMD5Utils {
+
+
+ /**
+ * MD5杞瓧绗︿覆
+ */
+ public static String encodeMD5(byte[] f) {
+ try {
+ MessageDigest digest = MessageDigest.getInstance("MD5");
+ digest.update(f);
+ byte[] messageDigest = digest.digest();
+ return toHexString(messageDigest);
+ } catch (NoSuchAlgorithmException e) {
+ e.printStackTrace();
+ }
+ return "";
+ }
+ /**
+ * MD5杞瓧绗︿覆
+ */
+ public static String encodeMD5(String s) {
+ try {
+ MessageDigest digest = MessageDigest.getInstance("MD5");
+ digest.update(s.getBytes(StandardCharsets.UTF_8));
+ byte[] messageDigest = digest.digest();
+ return toHexString(messageDigest);
+ } catch (NoSuchAlgorithmException e) {
+ e.printStackTrace();
+ }
+ return "";
+ }
+
+ private static String toHexString(byte[] keyData) {
+ if (keyData == null) {
+ return null;
+ }
+ int expectedStringLen = keyData.length * 2;
+ StringBuilder sb = new StringBuilder(expectedStringLen);
+ for (byte keyDatum : keyData) {
+ String hexStr = Integer.toString(keyDatum & 0x00FF, 16);
+ if (hexStr.length() == 1) {
+ hexStr = "0" + hexStr;
+ }
+ sb.append(hexStr);
+ }
+ return sb.toString();
+ }
+
+ /**
+ * MD5杞瓧绗︿覆
+ * 棰濆鍊�
+ */
+ public static String encodeMD52(String s) {
+ char[] hexDigits = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
+ try {
+ byte[] btInput = s.getBytes(StandardCharsets.UTF_8);
+ MessageDigest digest = MessageDigest.getInstance("MD5");
+ digest.update(btInput);
+ byte[] md = digest.digest();
+ int j = md.length;
+ char[] str = new char[j * 2];
+ int k = 0;
+ for (byte byte0 : md) {
+ str[k++] = hexDigits[byte0 >>> 4 & 0xf];
+ str[k++] = hexDigits[byte0 & 0xf];
+ }
+ return new String(str);
+ } catch (Exception e) {
+ e.printStackTrace();
+ return null;
+ }
+ }
+
+ /**
+ * MD5鏂囦欢杞瓧绗︿覆
+ */
+ public static String encodeMD5(File f) {
+ if (!f.isFile()) {
+ return null;
+ }
+ MessageDigest digest;
+ byte[] buffer = new byte[1024];
+ int len;
+ try {
+ digest = MessageDigest.getInstance("MD5");
+ FileInputStream in = new FileInputStream(f);
+ while ((len = in.read(buffer, 0, 1024)) != -1) {
+ digest.update(buffer, 0, len);
+ }
+ in.close();
+ } catch (Exception e) {
+ e.printStackTrace();
+ return null;
+ }
+ BigInteger bigInt = new BigInteger(1, digest.digest());
+ return bigInt.toString(16);
+ }
+
+
+
+
+
+ public final static String md5(String plainText) {
+
+// 杩斿洖瀛楃涓�
+
+ String md5Str = null;
+
+ try {
+
+// 鎿嶄綔瀛楃涓�
+
+ StringBuffer buf = new StringBuffer();
+
+ MessageDigest md =
+
+ MessageDigest.getInstance("MD5");
+
+// 娣诲姞瑕佽繘琛岃绠楁憳瑕佺殑淇℃伅,浣跨敤 plainText 鐨� byte
+
+
+ md.update(plainText.getBytes());
+
+// 璁＄畻鍑烘憳瑕�,瀹屾垚鍝堝笇璁＄畻銆�
+
+ byte b[] = md.digest();
+
+ int i;
+
+ for (int offset = 0; offset < b.length; offset++) {
+
+ i = b[offset];
+
+ if (i < 0) {
+
+ i += 256;
+
+ }
+
+ if (i < 16) {
+
+ buf.append("0");
+
+ }
+
+// 灏嗘暣鍨� 鍗佽繘鍒� i
+
+
+ buf.append(Integer.toHexString(i));
+
+ }
+
+// 32浣嶇殑鍔犲瘑
+
+ md5Str = buf.toString();
+
+// 16浣嶇殑鍔犲瘑
+
+// md5Str = buf.toString().md5Strstring(8,24);
+
+ } catch (Exception e) {
+
+ e.printStackTrace();
+
+ }
+
+ return md5Str;
+
+ }
+
+
+}
--
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