简化、重构代码。修复错误。

plusone-system/plusone-system-common/src/main/java/xyz/zhouxy/plusone/system/util/PasswordUtil.java

@@ -7,9 +7,7 @@ import java.security.NoSuchAlgorithmException;
 
 import javax.annotation.Nonnull;
 
-import lombok.extern.slf4j.Slf4j;
-import xyz.zhouxy.plusone.constant.ErrorCodeConsts;
-import xyz.zhouxy.plusone.exception.BizException;
+import xyz.zhouxy.plusone.exception.SysException;
 import xyz.zhouxy.plusone.util.RandomUtil;
 
 /**
@@ -17,7 +15,6 @@ import xyz.zhouxy.plusone.util.RandomUtil;
  *
  * @author <a href="https://gitee.com/zhouxy108">ZhouXY</a>
  */
-@Slf4j
 public final class PasswordUtil {
     private static final char[] SALT_BASE_CHAR_ARRAY = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ~`!@#$%^&*()_-+={}[]|\\:;\"',.<>?/"
             .toCharArray();
@@ -35,12 +32,12 @@ public final class PasswordUtil {
         int i = length > 0 ? length / 2 : 0;
         var passwordWithSalt = salt.substring(0, i)
                 + password
-                + salt.substring(1);
-        String sha512Hex = sha512Hex(passwordWithSalt);
-        if (sha512Hex == null) {
-            throw new BizException(ErrorCodeConsts.DEFAULT_ERROR_CODE, "未知错误：哈希加密失败！");
+                + salt.substring(i);
+        try {
+            return sha512Hex(passwordWithSalt);
+        } catch (NoSuchAlgorithmException e) {
+            throw new SysException(e);
         }
-        return sha512Hex;
     }
 
     /**
@@ -57,15 +54,12 @@ public final class PasswordUtil {
         throw new IllegalStateException("Utility class");
     }
 
-    private static String sha512Hex(String data) {
-        try {
+    @Nonnull
+    @SuppressWarnings("null")
+    private static String sha512Hex(String data) throws NoSuchAlgorithmException {
         MessageDigest messageDigest = MessageDigest.getInstance("SHA-512");
         messageDigest.update(data.getBytes(StandardCharsets.UTF_8));
         byte[] result = messageDigest.digest();
         return new BigInteger(1, result).toString(16);
-        } catch (NoSuchAlgorithmException e) {
-            log.error("{}", e);
-        }
-        return null;
     }
 }