修复标题为空导致的无法点击查看问题

sql/init_discuss_post.sql

@@ -2,8 +2,8 @@ DROP TABLE IF EXISTS `discuss_post`;
 SET character_set_client = utf8mb4 ;
 CREATE TABLE `discuss_post` (
   `id` int(11) NOT NULL AUTO_INCREMENT,
-  `user_id` int(11) DEFAULT NULL,
-  `title` varchar(100) DEFAULT NULL,
+  `user_id` int(11) NOT NULL,
+  `title` varchar(100) NOT NULL,
   `content` text,
   `type` int(11) DEFAULT NULL COMMENT '0-普通; 1-置顶;',
   `status` int(11) DEFAULT NULL COMMENT '0-正常; 1-精华; 2-拉黑;',

src/main/java/com/greate/community/controller/DiscussPostController.java

@@ -13,12 +13,14 @@ import com.greate.community.util.RedisKeyUtil;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 import org.springframework.web.util.HtmlUtils;
 
+import javax.validation.constraints.NotEmpty;
 import java.io.File;
 import java.util.*;
 
@@ -114,12 +116,7 @@ public class DiscussPostController implements CommunityConstant {
      */
     @PostMapping("/add")
     @ResponseBody
-    public String addDiscussPost(String title, String content) {
-        User user = hostHolder.getUser();
-        if (user == null) {
-            return CommunityUtil.getJSONString(403, "您还未登录");
-        }
-
+    public String addDiscussPost(@NotEmpty(message = "文章标题不能为空") String title, String content, @AuthenticationPrincipal User user) {
         DiscussPost discussPost = new DiscussPost();
         discussPost.setUserId(user.getId());
         discussPost.setTitle(title);