update了UrlCheck工具类

src/main/java/com/lovenav/service/serviceImpl/CommentServiceImpl.java

@@ -6,11 +6,8 @@ import com.lovenav.dao.CommentDao;
 import com.lovenav.dao.UserDao;
 import com.lovenav.entity.Comment;
 import com.lovenav.service.CommentService;
-import org.apache.ibatis.jdbc.Null;
-import org.mybatis.spring.annotation.MapperScan;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
-
 import java.util.HashMap;
 import java.util.List;
 
@@ -69,7 +66,7 @@ public class CommentServiceImpl implements CommentService {
 
 //    显示评论
     public String View_comment(){
-        List<Comment> list = commentDao.selectByAllComment();
+        List<Comment> list = commentDao.selectAllComment();
         return JSON.toJSONString(list);
     }