diff --git a/src/main/java/cc/ryanc/halo/model/domain/Post.java b/src/main/java/cc/ryanc/halo/model/domain/Post.java
index 4f54480e5..be77d3827 100755
--- a/src/main/java/cc/ryanc/halo/model/domain/Post.java
+++ b/src/main/java/cc/ryanc/halo/model/domain/Post.java
@@ -1,6 +1,9 @@
 package cc.ryanc.halo.model.domain;
 
+import cn.hutool.core.date.DateTime;
+import cn.hutool.core.date.DateUtil;
 import com.fasterxml.jackson.annotation.JsonFormat;
+import io.undertow.util.DateUtils;
 import lombok.Data;
 import org.springframework.data.annotation.CreatedDate;
 import org.springframework.data.annotation.LastModifiedDate;
@@ -154,4 +157,17 @@ public class Post implements Serializable {
     public Date getPostUpdate() {
         return postUpdate;
     }
+
+    @PrePersist
+    public void prePersist() {
+        DateTime now = DateUtil.date();
+        postDate = now;
+        postUpdate = now;
+        postId = null;
+    }
+
+    @PreUpdate
+    public void preUpdate() {
+        postUpdate = DateUtil.date();
+    }
 }
diff --git a/src/main/java/cc/ryanc/halo/model/dto/JsonResult.java b/src/main/java/cc/ryanc/halo/model/dto/JsonResult.java
index 4f9f89ebc..6db965806 100644
--- a/src/main/java/cc/ryanc/halo/model/dto/JsonResult.java
+++ b/src/main/java/cc/ryanc/halo/model/dto/JsonResult.java
@@ -1,9 +1,11 @@
 package cc.ryanc.halo.model.dto;
 
+import cc.ryanc.halo.model.enums.ResultCodeEnum;
 import lombok.Data;
 import org.springframework.http.HttpStatus;
 import org.springframework.lang.NonNull;
 import org.springframework.lang.Nullable;
+import org.springframework.util.Assert;
 
 /**
  * <pre>
@@ -112,4 +114,56 @@ public class JsonResult {
     public static JsonResult ok(@Nullable String message) {
         return ok(message, null);
     }
+
+    /**
+     * Creates an fail result with message only.
+     *
+     * @param message message of result must not be blank
+     * @return fail result with message only
+     */
+    public static JsonResult fail(@NonNull String message) {
+        Assert.hasText(message, "Message of result must not be blank");
+
+        return new JsonResult(ResultCodeEnum.FAIL.getCode(), message);
+    }
+
+    /**
+     * Creates an fail result.
+     *
+     * @param message message of result must not be blank
+     * @return fail result
+     */
+    public static JsonResult fail(@NonNull String message, @NonNull Object data) {
+        Assert.notNull(data, "Data of result must not be null");
+
+        JsonResult failResult = fail(message);
+        failResult.setResult(data);
+        return failResult;
+    }
+
+    /**
+     * Creates an success result with message only.
+     *
+     * @param message message of result must not be blank
+     * @return success result with message only
+     */
+    public static JsonResult success(@NonNull String message) {
+        Assert.hasText(message, "Message of result must not be blank");
+
+        return new JsonResult(ResultCodeEnum.SUCCESS.getCode(), message);
+    }
+
+    /**
+     * Creates an success result.
+     *
+     * @param message message of result must not be blank
+     * @return success result
+     */
+    public static JsonResult success(@NonNull String message, @NonNull Object data) {
+        Assert.notNull(data, "Data of result must not be null");
+
+        JsonResult successResult = success(message);
+        successResult.setResult(data);
+        return successResult;
+    }
 }
diff --git a/src/main/java/cc/ryanc/halo/service/impl/AttachmentServiceImpl.java b/src/main/java/cc/ryanc/halo/service/impl/AttachmentServiceImpl.java
index 64542626d..9edb134d2 100644
--- a/src/main/java/cc/ryanc/halo/service/impl/AttachmentServiceImpl.java
+++ b/src/main/java/cc/ryanc/halo/service/impl/AttachmentServiceImpl.java
@@ -1,5 +1,6 @@
 package cc.ryanc.halo.service.impl;
 
+import cc.ryanc.halo.logging.Logger;
 import cc.ryanc.halo.model.domain.Attachment;
 import cc.ryanc.halo.model.dto.QiNiuPutSet;
 import cc.ryanc.halo.model.enums.AttachLocationEnum;
@@ -31,6 +32,7 @@ import org.springframework.cache.annotation.Cacheable;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Service;
+import org.springframework.util.Assert;
 import org.springframework.web.multipart.MultipartFile;
 
 import javax.imageio.ImageIO;
@@ -54,6 +56,8 @@ import static cc.ryanc.halo.model.dto.HaloConst.OPTIONS;
 @Service
 public class AttachmentServiceImpl extends AbstractCrudService<Attachment, Long> implements AttachmentService {
 
+    private final Logger log = Logger.getLogger(getClass());
+
     private static final String ATTACHMENTS_CACHE_NAME = "attachments";
 
     private final AttachmentRepository attachmentRepository;
@@ -160,6 +164,9 @@ public class AttachmentServiceImpl extends AbstractCrudService<Attachment, Long>
      */
     @Override
     public Map<String, String> attachUpload(MultipartFile file, HttpServletRequest request) {
+        Assert.notNull(file, "MultipartFile must not be null");
+        Assert.notNull(request, "Http servlet request must not be null");
+
         final Map<String, String> resultMap = new HashMap<>(6);
         final String dateString = DateUtil.format(DateUtil.date(), "yyyyMMddHHmmss");
         try {
@@ -277,17 +284,11 @@ public class AttachmentServiceImpl extends AbstractCrudService<Attachment, Long>
                 putSet = new Gson().fromJson(response.bodyString(), QiNiuPutSet.class);
             } catch (QiniuException e) {
                 final Response r = e.response;
-                System.err.println(r.toString());
-                try {
-                    System.err.println(r.bodyString());
-                } catch (QiniuException ex2) {
-                    //ignore
-                }
-            } catch (JsonSyntaxException e) {
-                e.printStackTrace();
-            } catch (IOException e) {
-                e.printStackTrace();
+                log.error("Qiniu error response: [{}]", r);
+            } catch (JsonSyntaxException | IOException e) {
+                log.error("Failed to attach QiNiu resource", e);
             }
+
             final String filePath = domain.trim() + "/" + key;
             resultMap.put("fileName", file.getOriginalFilename());
             resultMap.put("filePath", filePath.trim());
@@ -297,7 +298,7 @@ public class AttachmentServiceImpl extends AbstractCrudService<Attachment, Long>
             resultMap.put("wh", putSet.getW() + "x" + putSet.getH());
             resultMap.put("location", AttachLocationEnum.QINIU.getDesc());
         } catch (Exception e) {
-            e.printStackTrace();
+            log.debug("Failed to generate md5 check sum", e);
         }
         return resultMap;
     }
@@ -347,7 +348,7 @@ public class AttachmentServiceImpl extends AbstractCrudService<Attachment, Long>
             resultMap.put("location", AttachLocationEnum.UPYUN.getDesc());
 
         } catch (Exception e) {
-            e.printStackTrace();
+            log.error("Failed to attach UpYun resource", e);
         }
         return resultMap;
     }
@@ -400,10 +401,8 @@ public class AttachmentServiceImpl extends AbstractCrudService<Attachment, Long>
         upYun.setApiDomain(UpYun.ED_AUTO);
         try {
             flag = upYun.deleteFile(ossSrc + fileName);
-        } catch (IOException e) {
-            e.printStackTrace();
-        } catch (UpException e) {
-            e.printStackTrace();
+        } catch (IOException | UpException e) {
+            log.error("Failed to delete UpYun attachment", e);
         }
         return flag;
     }
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 0014e7ddf..80d729455 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
@@ -1,5 +1,6 @@
 package cc.ryanc.halo.web.controller.admin;
 
+import cc.ryanc.halo.logging.Logger;
 import cc.ryanc.halo.model.domain.*;
 import cc.ryanc.halo.model.dto.JsonResult;
 import cc.ryanc.halo.model.dto.LogsRecord;
@@ -12,11 +13,10 @@ import cn.hutool.core.date.DateUnit;
 import cn.hutool.core.date.DateUtil;
 import cn.hutool.core.io.IoUtil;
 import cn.hutool.core.lang.Validator;
-import cn.hutool.core.util.ObjectUtil;
+import cn.hutool.core.util.RandomUtil;
 import cn.hutool.core.util.StrUtil;
 import cn.hutool.crypto.SecureUtil;
 import cn.hutool.http.HtmlUtil;
-import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
@@ -24,6 +24,7 @@ import org.springframework.data.web.PageableDefault;
 import org.springframework.http.HttpStatus;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
+import org.springframework.util.CollectionUtils;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 
@@ -43,11 +44,12 @@ import static cc.ryanc.halo.model.dto.HaloConst.USER_SESSION_KEY;
  * @author : RYAN0UP
  * @date : 2017/12/5
  */
-@Slf4j
 @Controller
 @RequestMapping(value = "/admin")
 public class AdminController extends BaseController {
 
+    private final Logger log = Logger.getLogger(getClass());
+
     @Autowired
     private PostService postService;
 
@@ -79,7 +81,6 @@ public class AdminController extends BaseController {
      * 请求后台页面
      *
      * @param model model
-     *
      * @return 模板路径admin/admin_index
      */
     @GetMapping(value = {"", "/index"})
@@ -119,17 +120,13 @@ public class AdminController extends BaseController {
      * 处理跳转到登录页的请求
      *
      * @param session session
-     *
      * @return 模板路径admin/admin_login
      */
     @GetMapping(value = "/login")
     public String login(HttpSession session) {
         final User user = (User) session.getAttribute(USER_SESSION_KEY);
         //如果session存在，跳转到后台首页
-        if (null != user) {
-            return "redirect:/admin";
-        }
-        return "admin/admin_login";
+        return user != null ? "redirect:/admin" : "admin/admin_login";
     }
 
     /**
@@ -138,7 +135,6 @@ public class AdminController extends BaseController {
      * @param loginName 登录名：邮箱／用户名
      * @param loginPwd  loginPwd 密码
      * @param session   session session
-     *
      * @return JsonResult JsonResult
      */
     @PostMapping(value = "/getLogin")
@@ -148,6 +144,7 @@ public class AdminController extends BaseController {
                                HttpSession session) {
         //已注册账号，单用户，只有一个
         final User aUser = userService.findUser();
+
         //首先判断是否已经被禁用已经是否已经过了10分钟
         Date loginLast = DateUtil.date();
         if (null != aUser.getLoginLast()) {
@@ -155,24 +152,26 @@ public class AdminController extends BaseController {
         }
         final Long between = DateUtil.between(loginLast, DateUtil.date(), DateUnit.MINUTE);
         if (StrUtil.equals(aUser.getLoginEnable(), TrueFalseEnum.FALSE.getDesc()) && (between < CommonParamsEnum.TEN.getValue())) {
-            return new JsonResult(ResultCodeEnum.FAIL.getCode(), localeMessageUtil.getMessage("code.admin.login.disabled"));
+            return JsonResult.fail(localeMessageUtil.getMessage("code.admin.login.disabled"));
         }
+
         //验证用户名和密码
-        User user = null;
+        User user;
         if (Validator.isEmail(loginName)) {
             user = userService.userLoginByEmail(loginName, SecureUtil.md5(loginPwd));
         } else {
             user = userService.userLoginByName(loginName, SecureUtil.md5(loginPwd));
         }
         userService.updateUserLoginLast(DateUtil.date());
+
         //判断User对象是否相等
-        if (ObjectUtil.equal(aUser, user)) {
+        if (Objects.equals(aUser, user)) {
             session.setAttribute(USER_SESSION_KEY, aUser);
             //重置用户的登录状态为正常
             userService.updateUserNormal();
             logsService.save(LogsRecord.LOGIN, LogsRecord.LOGIN_SUCCESS, request);
             log.info("User {} login succeeded.", aUser.getUserDisplayName());
-            return new JsonResult(ResultCodeEnum.SUCCESS.getCode(), localeMessageUtil.getMessage("code.admin.login.success"));
+            return JsonResult.success(localeMessageUtil.getMessage("code.admin.login.success"));
         } else {
             //更新失败次数
             final Integer errorCount = userService.updateUserLoginError();
@@ -181,8 +180,7 @@ public class AdminController extends BaseController {
                 userService.updateUserLoginEnable(TrueFalseEnum.FALSE.getDesc());
             }
             logsService.save(LogsRecord.LOGIN, LogsRecord.LOGIN_ERROR + "[" + HtmlUtil.escape(loginName) + "," + HtmlUtil.escape(loginPwd) + "]", request);
-            final Object[] args = {(5 - errorCount)};
-            return new JsonResult(ResultCodeEnum.FAIL.getCode(), localeMessageUtil.getMessage("code.admin.login.failed", args));
+            return JsonResult.fail(localeMessageUtil.getMessage("code.admin.login.failed", new Integer[]{5 - errorCount}));
         }
     }
 
@@ -190,7 +188,6 @@ public class AdminController extends BaseController {
      * 退出登录 销毁session
      *
      * @param session session
-     *
      * @return 重定向到/admin/login
      */
     @GetMapping(value = "/logOut")
@@ -206,7 +203,6 @@ public class AdminController extends BaseController {
      * 查看所有日志
      *
      * @param model model model
-     *
      * @return 模板路径admin/widget/_logs-all
      */
     @GetMapping(value = "/logs")
@@ -226,7 +222,7 @@ public class AdminController extends BaseController {
         try {
             logsService.removeAll();
         } catch (Exception e) {
-            log.error("Clear log failed:{}" + e.getMessage());
+            log.error("Clear log failed", e);
         }
         return "redirect:/admin";
     }
@@ -249,8 +245,8 @@ public class AdminController extends BaseController {
     @GetMapping(value = "/getToken")
     @ResponseBody
     public JsonResult getToken() {
-        final String token = (System.currentTimeMillis() + new Random().nextInt(999999999)) + "";
-        return new JsonResult(ResultCodeEnum.SUCCESS.getCode(), HttpStatus.OK.getReasonPhrase(), SecureUtil.md5(token));
+        final String token = String.valueOf(System.currentTimeMillis() + RandomUtil.randomInt(Integer.MAX_VALUE));
+        return JsonResult.success(HttpStatus.OK.getReasonPhrase(), SecureUtil.md5(token));
     }
 
     /**
@@ -278,7 +274,6 @@ public class AdminController extends BaseController {
      *
      * @param file    file
      * @param request request
-     *
      * @return JsonResult
      */
     @PostMapping(value = "/tools/markdownImport")
@@ -291,48 +286,44 @@ public class AdminController extends BaseController {
         final String content = MarkdownUtils.renderMarkdown(markdown);
         final Map<String, List<String>> frontMatters = MarkdownUtils.getFrontMatter(markdown);
         final Post post = new Post();
-        List<String> elementValue = null;
-        final List<Tag> tags = new ArrayList<>();
-        final List<Category> categories = new ArrayList<>();
-        Tag tag = null;
-        Category category = null;
-        if (frontMatters.size() > 0) {
-            for (String key : frontMatters.keySet()) {
-                elementValue = frontMatters.get(key);
-                for (String ele : elementValue) {
-                    if ("title".equals(key)) {
-                        post.setPostTitle(ele);
-                    } else if ("date".equals(key)) {
-                        post.setPostDate(DateUtil.parse(ele));
-                    } else if ("updated".equals(key)) {
-                        post.setPostUpdate(DateUtil.parse(ele));
-                    } else if ("tags".equals(key)) {
-                        tag = tagService.findTagByTagName(ele);
-                        if (null == tag) {
-                            tag = new Tag();
-                            tag.setTagName(ele);
-                            tag.setTagUrl(ele);
-                            tag = tagService.create(tag);
-                        }
-                        tags.add(tag);
-                    } else if ("categories".equals(key)) {
-                        category = categoryService.findByCateName(ele);
-                        if (null == category) {
-                            category = new Category();
-                            category.setCateName(ele);
-                            category.setCateUrl(ele);
-                            category.setCateDesc(ele);
-                            category = categoryService.create(category);
-                        }
-                        categories.add(category);
-                    }
+        final List<Tag> tags = new LinkedList<>();
+        final List<Category> categories = new LinkedList<>();
+
+        if (!CollectionUtils.isEmpty(frontMatters)) {
+            // Iterate the map and inner list
+            frontMatters.forEach((key, elementValue) -> elementValue.forEach(ele -> {
+                if ("title".equals(key)) {
+                    post.setPostTitle(ele);
+                } else if ("date".equals(key)) {
+                    post.setPostDate(DateUtil.parse(ele));
+                } else if ("updated".equals(key)) {
+                    post.setPostUpdate(DateUtil.parse(ele));
+                } else if ("tags".equals(key)) {
+                    Tag tag = Optional.ofNullable(tagService.findTagByTagName(ele)).orElseGet(() -> {
+                        Tag aTag = new Tag();
+                        aTag.setTagName(ele);
+                        aTag.setTagUrl(ele);
+                        return tagService.create(aTag);
+                    });
+                    tags.add(tag);
+                } else if ("categories".equals(key)) {
+                    Category category = Optional.ofNullable(categoryService.findByCateName(ele)).orElseGet(() -> {
+                        Category catg = new Category();
+                        catg.setCateName(ele);
+                        catg.setCateUrl(ele);
+                        catg.setCateDesc(ele);
+                        return categoryService.create(catg);
+                    });
+                    categories.add(category);
                 }
-            }
-        } else {
-            post.setPostDate(new Date());
-            post.setPostUpdate(new Date());
+            }));
+        }
+
+        if (StrUtil.isBlank(post.getPostTitle())) {
             post.setPostTitle(file.getOriginalFilename());
         }
+
+
         post.setPostContentMd(markdown);
         post.setPostContent(content);
         post.setPostType(PostTypeEnum.POST_TYPE_POST.getDesc());
@@ -341,12 +332,6 @@ public class AdminController extends BaseController {
         post.setTags(tags);
         post.setCategories(categories);
         post.setPostUrl(StrUtil.removeSuffix(file.getOriginalFilename(), ".md"));
-        if (null == post.getPostDate()) {
-            post.setPostDate(new Date());
-        }
-        if (null == post.getPostUpdate()) {
-            post.setPostUpdate(new Date());
-        }
         postService.create(post);
         return new JsonResult(ResultCodeEnum.SUCCESS.getCode());
     }
diff --git a/src/main/resources/application.yaml b/src/main/resources/application.yaml
index f2bc0ef77..5ada624e5 100755
--- a/src/main/resources/application.yaml
+++ b/src/main/resources/application.yaml
@@ -38,6 +38,7 @@ spring:
     hibernate:
       ddl-auto: update
     show-sql: false
+    open-in-view: false
   freemarker:
     allow-request-override: false
     cache: false