C#和Java中的哈希结果不同

将C#和Java中使用的哈希算法设置为相同的算法即可。下面是使用SHA256哈希算法的代码示例：

C#代码：

using System.Security.Cryptography;
using System.Text;

string textToHash = "example";
SHA256 sha256 = SHA256.Create();
byte[] hashBytes = sha256.ComputeHash(Encoding.UTF8.GetBytes(textToHash));
string hashString = Convert.ToBase64String(hashBytes);

Java代码：

import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Base64;

String textToHash = "example";
MessageDigest digest = MessageDigest.getInstance("SHA-256");
byte[] hashBytes = digest.digest(textToHash.getBytes(StandardCharsets.UTF_8));
String hashString = Base64.getEncoder().encodeToString(hashBytes);