diff --git a/src/main/java/cc/ryanc/halo/model/enums/CommonParams.java b/src/main/java/cc/ryanc/halo/model/enums/CommonParams.java
new file mode 100644
index 000000000..23429614d
--- /dev/null
+++ b/src/main/java/cc/ryanc/halo/model/enums/CommonParams.java
@@ -0,0 +1,42 @@
+package cc.ryanc.halo.model.enums;
+
+/**
+ * <pre>
+ *     常用数字
+ * </pre>
+ *
+ * @author : RYAN0UP
+ * @date : 2018/8/1
+ */
+public enum CommonParams {
+
+    /**
+     * 数字10
+     */
+    TEN(10),
+
+    /**
+     * 数字5
+     */
+    FIVE(5),
+
+    /**
+     * 数字404
+     */
+    NOT_FOUND(404),
+
+    /**
+     * 数字1024
+     */
+    BYTE(1024);
+
+    private Integer value;
+
+    CommonParams(Integer value) {
+        this.value = value;
+    }
+
+    public Integer getValue() {
+        return value;
+    }
+}
diff --git a/src/main/java/cc/ryanc/halo/service/CategoryService.java b/src/main/java/cc/ryanc/halo/service/CategoryService.java
index a53650942..6055be016 100755
--- a/src/main/java/cc/ryanc/halo/service/CategoryService.java
+++ b/src/main/java/cc/ryanc/halo/service/CategoryService.java
@@ -54,5 +54,11 @@ public interface CategoryService {
      */
     Category findByCateUrl(String cateUrl);
 
+    /**
+     * 将分类字符串集合转化为Category泛型集合
+     *
+     * @param strings strings
+     * @return List
+     */
     List<Category> strListToCateList(List<String> strings);
 }
diff --git a/src/main/java/cc/ryanc/halo/service/impl/CategoryServiceImpl.java b/src/main/java/cc/ryanc/halo/service/impl/CategoryServiceImpl.java
index 4eea1b346..1fc046db5 100755
--- a/src/main/java/cc/ryanc/halo/service/impl/CategoryServiceImpl.java
+++ b/src/main/java/cc/ryanc/halo/service/impl/CategoryServiceImpl.java
@@ -80,6 +80,12 @@ public class CategoryServiceImpl implements CategoryService {
         return categoryRepository.findCategoryByCateUrl(cateUrl);
     }
 
+    /**
+     * 将分类字符串集合转化为Category泛型集合
+     *
+     * @param strings strings
+     * @return List
+     */
     @Override
     public List<Category> strListToCateList(List<String> strings) {
         if (null == strings) {
diff --git a/src/main/java/cc/ryanc/halo/utils/HaloUtils.java b/src/main/java/cc/ryanc/halo/utils/HaloUtils.java
index 1202cb6dc..e6f8b76f3 100755
--- a/src/main/java/cc/ryanc/halo/utils/HaloUtils.java
+++ b/src/main/java/cc/ryanc/halo/utils/HaloUtils.java
@@ -5,6 +5,7 @@ import cc.ryanc.halo.model.dto.BackupDto;
 import cc.ryanc.halo.model.dto.HaloConst;
 import cc.ryanc.halo.model.dto.Theme;
 import cc.ryanc.halo.model.enums.BlogProperties;
+import cc.ryanc.halo.model.enums.CommonParams;
 import cn.hutool.core.io.FileUtil;
 import com.sun.syndication.feed.rss.Channel;
 import com.sun.syndication.feed.rss.Content;
@@ -114,17 +115,17 @@ public class HaloUtils {
      * @return String
      */
     public static String parseSize(long size) {
-        if (size < 1024) {
+        if (size < CommonParams.NOT_FOUND.getValue()) {
             return String.valueOf(size) + "B";
         } else {
             size = size / 1024;
         }
-        if (size < 1024) {
+        if (size < CommonParams.NOT_FOUND.getValue()) {
             return String.valueOf(size) + "KB";
         } else {
             size = size / 1024;
         }
-        if (size < 1024) {
+        if (size < CommonParams.NOT_FOUND.getValue()) {
             size = size * 100;
             return String.valueOf((size / 100)) + "." + String.valueOf((size % 100)) + "MB";
         } else {
diff --git a/src/main/java/cc/ryanc/halo/web/controller/admin/AdminController.java b/src/main/java/cc/ryanc/halo/web/controller/admin/AdminController.java
index 0ce6d18f6..11a6aee3b 100755
--- a/src/main/java/cc/ryanc/halo/web/controller/admin/AdminController.java
+++ b/src/main/java/cc/ryanc/halo/web/controller/admin/AdminController.java
@@ -7,6 +7,7 @@ import cc.ryanc.halo.model.domain.User;
 import cc.ryanc.halo.model.dto.HaloConst;
 import cc.ryanc.halo.model.dto.JsonResult;
 import cc.ryanc.halo.model.dto.LogsRecord;
+import cc.ryanc.halo.model.enums.CommonParams;
 import cc.ryanc.halo.model.enums.ResultCode;
 import cc.ryanc.halo.model.enums.TrueFalse;
 import cc.ryanc.halo.service.*;
@@ -137,7 +138,7 @@ public class AdminController extends BaseController {
             loginLast = aUser.getLoginLast();
         }
         Long between = DateUtil.between(loginLast, DateUtil.date(), DateUnit.MINUTE);
-        if (StringUtils.equals(aUser.getLoginEnable(), TrueFalse.FALSE.getDesc()) && (between < 10)) {
+        if (StringUtils.equals(aUser.getLoginEnable(), TrueFalse.FALSE.getDesc()) && (between < CommonParams.TEN.getValue())) {
             return new JsonResult(ResultCode.FAIL.getCode(), "已禁止登录，请10分钟后再试");
         }
         //验证用户名和密码
@@ -160,7 +161,7 @@ public class AdminController extends BaseController {
             //更新失败次数
             Integer errorCount = userService.updateUserLoginError();
             //超过五次禁用账户
-            if (errorCount >= 5) {
+            if (errorCount >= CommonParams.FIVE.getValue()) {
                 userService.updateUserLoginEnable(TrueFalse.FALSE.getDesc());
             }
             logsService.saveByLogs(
diff --git a/src/main/java/cc/ryanc/halo/web/controller/admin/BackupController.java b/src/main/java/cc/ryanc/halo/web/controller/admin/BackupController.java
index 9f025168e..21a9b5621 100644
--- a/src/main/java/cc/ryanc/halo/web/controller/admin/BackupController.java
+++ b/src/main/java/cc/ryanc/halo/web/controller/admin/BackupController.java
@@ -59,7 +59,7 @@ public class BackupController {
     @GetMapping
     public String backup(@RequestParam(value = "type", defaultValue = "resources") String type, Model model) {
         List<BackupDto> backups = null;
-        if (StringUtils.equals(type,BackupType.RESOURCES.getDesc())) {
+        if (StringUtils.equals(type, BackupType.RESOURCES.getDesc())) {
             backups = HaloUtils.getBackUps(BackupType.RESOURCES.getDesc());
         } else if (StringUtils.equals(type, BackupType.DATABASES.getDesc())) {
             backups = HaloUtils.getBackUps(BackupType.DATABASES.getDesc());
@@ -100,7 +100,7 @@ public class BackupController {
      */
     public JsonResult backupDatabase() {
         try {
-            if (HaloUtils.getBackUps(BackupType.DATABASES.getDesc()).size() > 10) {
+            if (HaloUtils.getBackUps(BackupType.DATABASES.getDesc()).size() > CommonParams.TEN.getValue()) {
                 FileUtil.del(System.getProperties().getProperty("user.home") + "/halo/backup/databases/");
             }
             String srcPath = System.getProperties().getProperty("user.home") + "/halo/";
@@ -122,7 +122,7 @@ public class BackupController {
      */
     public JsonResult backupResources() {
         try {
-            if (HaloUtils.getBackUps(BackupType.RESOURCES.getDesc()).size() > 10) {
+            if (HaloUtils.getBackUps(BackupType.RESOURCES.getDesc()).size() > CommonParams.TEN.getValue()) {
                 FileUtil.del(System.getProperties().getProperty("user.home") + "/halo/backup/resources/");
             }
             File path = new File(ResourceUtils.getURL("classpath:").getPath());
@@ -147,7 +147,7 @@ public class BackupController {
         List<Post> posts = postService.findAllPosts(PostType.POST_TYPE_POST.getDesc());
         posts.addAll(postService.findAllPosts(PostType.POST_TYPE_PAGE.getDesc()));
         try {
-            if (HaloUtils.getBackUps(BackupType.POSTS.getDesc()).size() > 10) {
+            if (HaloUtils.getBackUps(BackupType.POSTS.getDesc()).size() > CommonParams.TEN.getValue()) {
                 FileUtil.del(System.getProperties().getProperty("user.home") + "/halo/backup/posts/");
             }
             //打包好的文件名
diff --git a/src/main/java/cc/ryanc/halo/web/controller/core/CommonController.java b/src/main/java/cc/ryanc/halo/web/controller/core/CommonController.java
index 926e0a0a6..429314ce2 100644
--- a/src/main/java/cc/ryanc/halo/web/controller/core/CommonController.java
+++ b/src/main/java/cc/ryanc/halo/web/controller/core/CommonController.java
@@ -1,5 +1,6 @@
 package cc.ryanc.halo.web.controller.core;
 
+import cc.ryanc.halo.model.enums.CommonParams;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.boot.web.servlet.error.ErrorController;
 import org.springframework.stereotype.Controller;
@@ -30,7 +31,7 @@ public class CommonController implements ErrorController {
     @GetMapping(value = ERROR_PATH)
     public String handleError(HttpServletRequest request) {
         Integer statusCode = (Integer) request.getAttribute("javax.servlet.error.status_code");
-        if (statusCode == 404) {
+        if (statusCode.equals(CommonParams.NOT_FOUND.getValue())) {
             return "redirect:/404";
         } else {
             return "redirect:/500";