diff --git a/src/main/java/site/easystartup/web/domain/model/User.java b/src/main/java/site/easystartup/web/domain/model/User.java
index 545fe03..a6ff8d1 100644
--- a/src/main/java/site/easystartup/web/domain/model/User.java
+++ b/src/main/java/site/easystartup/web/domain/model/User.java
@@ -53,7 +53,6 @@ public class User implements UserDetails {
 
     @ElementCollection(targetClass = String.class, fetch = FetchType.EAGER)
     @CollectionTable(name = "user_lang", joinColumns = @JoinColumn(name = "user_id"))
-    @Enumerated(EnumType.STRING)
     private Set<String> langs;
 
     @ElementCollection
diff --git a/src/main/java/site/easystartup/web/dto/UserDto.java b/src/main/java/site/easystartup/web/dto/UserDto.java
index 83f0f7b..c360358 100644
--- a/src/main/java/site/easystartup/web/dto/UserDto.java
+++ b/src/main/java/site/easystartup/web/dto/UserDto.java
@@ -14,7 +14,7 @@ public class UserDto implements Serializable {
     private long id;
     private String username;
     private boolean active;
-    private String full_name;
+    private String fullName;
     private String status;
     private String iconPath;
     private String email;
diff --git a/src/main/java/site/easystartup/web/forum/dto/DiscussionDto.java b/src/main/java/site/easystartup/web/forum/dto/DiscussionDto.java
index 38fb834..7f99122 100644
--- a/src/main/java/site/easystartup/web/forum/dto/DiscussionDto.java
+++ b/src/main/java/site/easystartup/web/forum/dto/DiscussionDto.java
@@ -17,10 +17,9 @@ public class DiscussionDto implements Serializable {
     private String title;
     private String author;
     private Date date;
-    private Date last_update;
+    private Date lastUpdate;
     private boolean pinned;
     private DiscussionStatus status;
     private long topic;
     private List<Long> messages;
-
 }
diff --git a/src/main/java/site/easystartup/web/forum/dto/DiscussionMessageDto.java b/src/main/java/site/easystartup/web/forum/dto/DiscussionMessageDto.java
index caf2c45..cc14e17 100644
--- a/src/main/java/site/easystartup/web/forum/dto/DiscussionMessageDto.java
+++ b/src/main/java/site/easystartup/web/forum/dto/DiscussionMessageDto.java
@@ -16,5 +16,5 @@ public class DiscussionMessageDto implements Serializable {
     private String sender;
     private Date date;
     private boolean edited;
-    private long discussion_id;
+    private long discussionId;
 }
diff --git a/src/main/java/site/easystartup/web/forum/dto/TopicDto.java b/src/main/java/site/easystartup/web/forum/dto/TopicDto.java
index dd6c4cb..8fbebff 100644
--- a/src/main/java/site/easystartup/web/forum/dto/TopicDto.java
+++ b/src/main/java/site/easystartup/web/forum/dto/TopicDto.java
@@ -16,5 +16,5 @@ public class TopicDto implements Serializable {
     private String author;
     private int size;
     private String description;
-    private Date last_update;
+    private Date lastUpdate;
 }
diff --git a/src/main/java/site/easystartup/web/post/dto/PostDto.java b/src/main/java/site/easystartup/web/post/dto/PostDto.java
index ab4ef90..d743d99 100644
--- a/src/main/java/site/easystartup/web/post/dto/PostDto.java
+++ b/src/main/java/site/easystartup/web/post/dto/PostDto.java
@@ -17,8 +17,8 @@ public class PostDto implements Serializable {
     private String sender;
     private Date date;
     private boolean edited;
-    private List<String> liked_users;
+    private List<String> likedUsers;
     private long like;
     private List<Long> answers;
-    private long answered_post;
+    private long answeredPost;
 }
diff --git a/src/main/java/site/easystartup/web/project/domain/model/Project.java b/src/main/java/site/easystartup/web/project/domain/model/Project.java
index dbdf96f..b4278ad 100644
--- a/src/main/java/site/easystartup/web/project/domain/model/Project.java
+++ b/src/main/java/site/easystartup/web/project/domain/model/Project.java
@@ -11,6 +11,7 @@ import javax.validation.constraints.Size;
 import java.time.LocalDateTime;
 import java.util.List;
 import java.util.Objects;
+import java.util.Set;
 
 @Data
 @RequiredArgsConstructor
@@ -43,7 +44,6 @@ public class Project {
             joinColumns = @JoinColumn(name = "project_id"),
             inverseJoinColumns = @JoinColumn(name = "tag_id")
     )
-    @ToString.Exclude
     private List<Tag> technology;
 
     @ManyToOne
diff --git a/src/main/java/site/easystartup/web/project/domain/model/Tag.java b/src/main/java/site/easystartup/web/project/domain/model/Tag.java
index ed0479f..ae8eae7 100644
--- a/src/main/java/site/easystartup/web/project/domain/model/Tag.java
+++ b/src/main/java/site/easystartup/web/project/domain/model/Tag.java
@@ -22,8 +22,7 @@ public class Tag {
     @Column(name = "tage_name")
     private String tagName;
 
-    @ManyToMany(mappedBy = "projects")
-    @ToString.Exclude
+    @ManyToMany(mappedBy = "technology")
     private Set<Project> projects;
 
     @Override
diff --git a/src/main/java/site/easystartup/web/project/dto/UserDto.java b/src/main/java/site/easystartup/web/project/dto/UserDto.java
index a1d8034..c0e2efd 100644
--- a/src/main/java/site/easystartup/web/project/dto/UserDto.java
+++ b/src/main/java/site/easystartup/web/project/dto/UserDto.java
@@ -14,7 +14,7 @@ public class UserDto implements Serializable {
     private  String username;
     private  String password;
     private  boolean active;
-    private  String full_name;
+    private  String fullName;
     private  String status;
     private  String iconPath;
     private  String email;
diff --git a/src/main/java/site/easystartup/web/storage/controller/FileUploadController.java b/src/main/java/site/easystartup/web/storage/controller/FileUploadController.java
index ec22aa8..5a95629 100644
--- a/src/main/java/site/easystartup/web/storage/controller/FileUploadController.java
+++ b/src/main/java/site/easystartup/web/storage/controller/FileUploadController.java
@@ -26,7 +26,7 @@ public class FileUploadController {
     }
 
     //@
-    @GetMapping("/upload")
+    @GetMapping("/files/upload")
     public String listUploadedFiles(Model model) {
         if(storageService.loadAll() == null) {
             model.addAttribute("message",
@@ -51,7 +51,7 @@ public class FileUploadController {
                 .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"" + file.getFilename() + "\"").body(file);
     }
 
-    @PostMapping("/upload")
+    @PostMapping("/files/upload")
     //@
     public String handleFileUpload(@RequestParam("file") MultipartFile file,
                                    Model model) {