diff --git a/src/main/java/com/shzlw/poli/util/PasswordUtils.java b/src/main/java/com/shzlw/poli/util/PasswordUtils.java
index f64c187..3b6e39e 100644
--- a/src/main/java/com/shzlw/poli/util/PasswordUtils.java
+++ b/src/main/java/com/shzlw/poli/util/PasswordUtils.java
@@ -1,118 +1,118 @@
 package com.shzlw.poli.util;
 
-import javax.crypto.Cipher;
-import javax.crypto.spec.IvParameterSpec;
-import javax.crypto.spec.SecretKeySpec;
 import java.math.BigInteger;
 import java.nio.ByteBuffer;
 import java.security.MessageDigest;
 import java.util.Base64;
 import java.util.UUID;
+import javax.crypto.Cipher;
+import javax.crypto.spec.IvParameterSpec;
+import javax.crypto.spec.SecretKeySpec;
 
 public final class PasswordUtils {
 
-    private PasswordUtils() {}
-
-    public static synchronized String getUniqueId() {
-        return uuidToBase64(UUID.randomUUID().toString());
-    }
-
-    private static String uuidToBase64(String str) {
-        UUID uuid = UUID.fromString(str);
-        ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
-        bb.putLong(uuid.getMostSignificantBits());
-        bb.putLong(uuid.getLeastSignificantBits());
-        return Base64.getUrlEncoder().withoutPadding().encodeToString(bb.array());
+  private PasswordUtils() {}
+
+  public static synchronized String getUniqueId() {
+    return uuidToBase64(UUID.randomUUID().toString());
+  }
+
+  private static String uuidToBase64(String str) {
+    UUID uuid = UUID.fromString(str);
+    ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
+    bb.putLong(uuid.getMostSignificantBits());
+    bb.putLong(uuid.getLeastSignificantBits());
+    return Base64.getUrlEncoder().withoutPadding().encodeToString(bb.array());
+  }
+
+  public static String getMd5Hash(String s) {
+    String rt = "";
+    try {
+      MessageDigest m = MessageDigest.getInstance("MD5");
+      m.reset();
+      m.update(s.getBytes());
+      byte[] digest = m.digest();
+      BigInteger bigInt = new BigInteger(1, digest);
+      StringBuilder hashtext = new StringBuilder(bigInt.toString(16));
+      while (hashtext.length() < 32) {
+        hashtext.append("0" + hashtext);
+      }
+      return hashtext.toString();
+    } catch (Exception e) {
+      e.printStackTrace();
     }
-
-    public static String getMd5Hash(String s) {
-        String rt = "";
-        try {
-            MessageDigest m = MessageDigest.getInstance("MD5");
-            m.reset();
-            m.update(s.getBytes());
-            byte[] digest = m.digest();
-            BigInteger bigInt = new BigInteger(1, digest);
-            String hashtext = bigInt.toString(16);
-            while (hashtext.length() < 32) {
-                hashtext = "0" + hashtext;
-            }
-            return hashtext;
-        } catch(Exception e) {
-            e.printStackTrace();
-        }
-        return rt;
+    return rt;
+  }
+
+  public static String encrypt(String value) {
+    return encrypt(value, Constants.ENCRYPT_IV, Constants.ENCRYPT_KEY);
+  }
+
+  public static String decrypt(String value) {
+    return decrypt(value, Constants.ENCRYPT_IV, Constants.ENCRYPT_KEY);
+  }
+
+  public static String encrypt(String value, String initVector, String key) {
+    String rt = "";
+    try {
+      IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8"));
+      SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");
+
+      Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
+      cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
+      byte[] encrypted = cipher.doFinal(value.getBytes());
+      rt = new String(Base64.getEncoder().encodeToString(encrypted));
+    } catch (Exception e) {
     }
 
-    public static String encrypt(String value) {
-        return encrypt(value, Constants.ENCRYPT_IV, Constants.ENCRYPT_KEY);
-    }
+    return rt;
+  }
 
-    public static String decrypt(String value) {
-        return decrypt(value, Constants.ENCRYPT_IV, Constants.ENCRYPT_KEY);
-    }
+  public static String decrypt(String val, String initVector, String key) {
+    String rt = "";
+    try {
+      IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8"));
+      SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");
 
-    public static String encrypt(String value, String initVector, String key) {
-        String rt = "";
-        try {
-            IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8"));
-            SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");
+      Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
+      cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
 
-            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
-            cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
-            byte[] encrypted = cipher.doFinal(value.getBytes());
-            rt = new String(Base64.getEncoder().encodeToString(encrypted));
-        } catch (Exception e) {
-        }
-
-        return rt;
+      byte[] decrypted = cipher.doFinal(Base64.getDecoder().decode(val));
+      rt = new String(decrypted);
+    } catch (Exception e) {
     }
-
-    public static String decrypt(String val, String initVector, String key) {
-        String rt = "";
-        try {
-            IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8"));
-            SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");
-
-            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
-            cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
-
-            byte[] decrypted = cipher.doFinal(Base64.getDecoder().decode(val));
-            rt = new String(decrypted);
-        } catch (Exception e) {
-        }
-        return rt;
-    }
-
-    public static String getEncryptedPassword(String password) {
-        String p = password == null ? "" : password;
-        return encrypt(Constants.PASSWORD_SALT + p);
+    return rt;
+  }
+
+  public static String getEncryptedPassword(String password) {
+    String p = password == null ? "" : password;
+    return encrypt(Constants.PASSWORD_SALT + p);
+  }
+
+  public static String getDecryptedPassword(String password) {
+    String p = decrypt(password);
+    int saltLength = Constants.PASSWORD_SALT.length();
+    return p.substring(saltLength);
+  }
+
+  public static String padOrTrimTo16(String str) {
+    String s = str;
+    if (str == null) {
+      s = "";
     }
 
-    public static String getDecryptedPassword(String password) {
-        String p = decrypt(password);
-        int saltLength = Constants.PASSWORD_SALT.length();
-        return p.substring(saltLength);
+    if (s.length() == 16) {
+      return s;
+    } else if (s.length() > 16) {
+      return s.substring(0, 16);
     }
 
-    public static String padOrTrimTo16(String str) {
-        String s = str;
-        if (str == null) {
-            s = "";
-        }
-
-        if (s.length() == 16) {
-            return s;
-        } else if (s.length() > 16) {
-            return s.substring(0, 16);
-        }
-
-        int l = 16 - s.length();
-        StringBuilder sb = new StringBuilder();
-        for (int i = 0; i < l; i++) {
-            sb.append("0");
-        }
-        sb.append(s);
-        return sb.toString();
+    int l = 16 - s.length();
+    StringBuilder sb = new StringBuilder();
+    for (int i = 0; i < l; i++) {
+      sb.append("0");
     }
+    sb.append(s);
+    return sb.toString();
+  }
 }