最近碰到一个很坑很难受的问题,公司对接一个java项目碰到C# url编码跟java url编码后不一样，导致最后加密结果不一样,** C# 中文url编码后是小写的 java 中文url编码后是大写的,且会对非安全字符进行编码
这里得注意一下，有些地方个别情况特殊符号没进行编码的，还是得自己手动Replace一下对应编码
public static class Utils
{
private static string UrlEncode(this string str)
{
var encoding = UTF8Encoding.UTF8;
byte[] bytes = encoding.GetBytes(str);
int IsSafe = 0;
int NoSafe = 0;
for (int i = 0; i < bytes.Length; i++)
{
char ch = (char)bytes[i];
if (ch == ' ')
{
IsSafe++;
}
else if (!IsSafeChar(ch))
{
NoSafe ++;
}
}
if (IsSafe== 0 && NoSafe == 0)
{
return str;
}
byte[] buffer = new byte[bytes.Length + (NoSafe * 2)];
int num1 = 0;
for (int j = 0; j < bytes.Length; j++)
{
byte num2 = bytes[j];
char ch2 = (char)num2;
if (IsSafeChar(ch2))
{
buffer[num1++] = num2;
}
else if (ch2 == ' ')
{
buffer[num1++] = 0x2B;
}
else
{
buffer[num1++] = 0x25;
buffer[num1++] = (byte)IntToHex((num2 >> 4) & 15);
buffer[num1++] = (byte)IntToHex(num2 & 15);
}
}
return encoding.GetString(buffer);
}
private static bool IsSafeChar(char ch)
{
if ((((ch < 'a') || (ch > 'z')) && ((ch < 'A') || (ch > 'Z'))) && ((ch < '0') || (ch > '9')))
{
switch (ch)
{
case '-':
case '.':
break; //安全字符
case '+':
case ',':
return false; //非安全字符
default: //非安全字符
if (ch != '_')
{
return false;
}
break;
}
}
return true;
}
private static char IntToHex(int n)
{
if (n <= 9)
{
return (char)(n + 0x30);
}
return (char)((n - 10) + 0x41);
}
}博文最后更新时间：
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