添加项目文件。

SAL_OUTSTOCK/Utils/Base64Helper.cs

@@ -0,0 +1,74 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace SAL_OUTSTOCK.Utils
+{
+
+    public static class Base64Helper
+    {
+        /// <summary>
+        /// Base64加密，采用utf8编码方式加密
+        /// </summary>
+        /// <param name="source">待加密的明文</param>
+        /// <returns>加密后的字符串</returns>
+        public static string Base64Encode(string source)
+        {
+            return Base64Encode(Encoding.UTF8, source);
+        }
+
+        /// <summary>
+        /// Base64加密
+        /// </summary>
+        /// <param name="encodeType">加密采用的编码方式</param>
+        /// <param name="source">待加密的明文</param>
+        /// <returns></returns>
+        public static string Base64Encode(Encoding encodeType, string source)
+        {
+            string encode = string.Empty;
+            byte[] bytes = encodeType.GetBytes(source);
+            try
+            {
+                encode = Convert.ToBase64String(bytes);
+            }
+            catch
+            {
+                encode = source;
+            }
+            return encode;
+        }
+
+        /// <summary>
+        /// Base64解密，采用utf8编码方式解密
+        /// </summary>
+        /// <param name="result">待解密的密文</param>
+        /// <returns>解密后的字符串</returns>
+        public static string Base64Decode(string result)
+        {
+            return Base64Decode(Encoding.UTF8, result);
+        }
+
+        /// <summary>
+        /// Base64解密
+        /// </summary>
+        /// <param name="encodeType">解密采用的编码方式，注意和加密时采用的方式一致</param>
+        /// <param name="result">待解密的密文</param>
+        /// <returns>解密后的字符串</returns>
+        public static string Base64Decode(Encoding encodeType, string result)
+        {
+            string decode = string.Empty;
+            byte[] bytes = Convert.FromBase64String(result);
+            try
+            {
+                decode = encodeType.GetString(bytes);
+            }
+            catch
+            {
+                decode = result;
+            }
+            return decode;
+        }
+    }
+
+}