diff --git a/src/main/java/co/jp/app/controller/loginController.java b/src/main/java/co/jp/app/controller/LoginController.java
similarity index 85%
rename from src/main/java/co/jp/app/controller/loginController.java
rename to src/main/java/co/jp/app/controller/LoginController.java
index 156d326..772ae55 100644
--- a/src/main/java/co/jp/app/controller/loginController.java
+++ b/src/main/java/co/jp/app/controller/LoginController.java
@@ -7,19 +7,19 @@ import org.springframework.web.bind.annotation.RestController;
 
 import co.jp.app.entity.ErrorEntity;
 import co.jp.app.entity.UserEntity;
-import co.jp.app.service.erraService;
-import co.jp.app.service.userService;
+import co.jp.app.service.ErraService;
+import co.jp.app.service.UserService;
 
 
 @CrossOrigin("http://192.168.1.50:5173")
 @RestController("/api/login")
-public class loginController {
+public class LoginController {
 
     @Autowired
-    private userService userService;
+    private UserService userService;
 
     @Autowired
-    private erraService erraService;
+    private ErraService erraService;
 
     @GetMapping("/status")
     public String getStatusByNameOrEmail() {
diff --git a/src/main/java/co/jp/app/controller/uploadController.java b/src/main/java/co/jp/app/controller/UploadController.java
similarity index 84%
rename from src/main/java/co/jp/app/controller/uploadController.java
rename to src/main/java/co/jp/app/controller/UploadController.java
index f3550d7..c76027a 100644
--- a/src/main/java/co/jp/app/controller/uploadController.java
+++ b/src/main/java/co/jp/app/controller/UploadController.java
@@ -9,14 +9,14 @@ import org.springframework.web.bind.annotation.CrossOrigin;
 import org.springframework.web.bind.annotation.PostMapping;
 
 import co.jp.app.entity.PetEntity;
-import co.jp.app.service.uploadService;
+import co.jp.app.service.UploadService;
 
 @CrossOrigin("http://192.168.1.50:5173")
 @Controller
-public class uploadController {
+public class UploadController {
 
 	@Autowired
-	private uploadService service;
+	private UploadService service;
 
 	@PostMapping("/api/dogs/upload")
 	public String upload() {
diff --git a/src/main/java/co/jp/app/entity/ErrorEntity.java b/src/main/java/co/jp/app/entity/ErrorEntity.java
index 46d20b1..8ea8bb3 100644
--- a/src/main/java/co/jp/app/entity/ErrorEntity.java
+++ b/src/main/java/co/jp/app/entity/ErrorEntity.java
@@ -31,6 +31,4 @@ public void setStatus(String status) {
 	this.status = status;
 }
 
-
-
 }
diff --git a/src/main/java/co/jp/app/entity/PetEntity.java b/src/main/java/co/jp/app/entity/PetEntity.java
index 8fc7339..8b8f9ed 100644
--- a/src/main/java/co/jp/app/entity/PetEntity.java
+++ b/src/main/java/co/jp/app/entity/PetEntity.java
@@ -10,8 +10,8 @@ import jakarta.persistence.Table;
 public class PetEntity{
 @GeneratedValue(strategy = GenerationType.IDENTITY)
 
-@Id
-private int ID;
+	@Id
+	private int ID;
 	//犬の名前
 	private String name;
 	//犬の種類
diff --git a/src/main/java/co/jp/app/entity/UserEntity.java b/src/main/java/co/jp/app/entity/UserEntity.java
index fc8018a..14525e8 100644
--- a/src/main/java/co/jp/app/entity/UserEntity.java
+++ b/src/main/java/co/jp/app/entity/UserEntity.java
@@ -11,6 +11,7 @@ public class UserEntity {
 	@GeneratedValue(strategy = GenerationType.IDENTITY)
 	@Id
     private int ID;
+
 	private String name;
 
 	private String email;
diff --git a/src/main/java/co/jp/app/repository/erraRepository.java b/src/main/java/co/jp/app/repository/ErraRepository.java
similarity index 81%
rename from src/main/java/co/jp/app/repository/erraRepository.java
rename to src/main/java/co/jp/app/repository/ErraRepository.java
index 2578e5a..5c18baf 100644
--- a/src/main/java/co/jp/app/repository/erraRepository.java
+++ b/src/main/java/co/jp/app/repository/ErraRepository.java
@@ -7,7 +7,7 @@ import org.springframework.data.repository.query.Param;
 import co.jp.app.entity.ErrorEntity;
 
 
-public interface erraRepository extends JpaRepository<ErrorEntity, Integer>{
+public interface ErraRepository extends JpaRepository<ErrorEntity, Integer>{
 	
 	public default ErrorEntity getById(@Param("id") int id) {
 		return getById(id);
diff --git a/src/main/java/co/jp/app/repository/uploadRepository.java b/src/main/java/co/jp/app/repository/UploadRepository.java
similarity index 84%
rename from src/main/java/co/jp/app/repository/uploadRepository.java
rename to src/main/java/co/jp/app/repository/UploadRepository.java
index ad55b0e..e809207 100644
--- a/src/main/java/co/jp/app/repository/uploadRepository.java
+++ b/src/main/java/co/jp/app/repository/UploadRepository.java
@@ -6,7 +6,7 @@ import org.springframework.data.jpa.repository.JpaRepository;
 
 import co.jp.app.entity.PetEntity;
 
-public interface uploadRepository extends JpaRepository<PetEntity, Integer>{
+public interface UploadRepository extends JpaRepository<PetEntity, Integer>{
 
 @Override
 default <S extends PetEntity> List<S> saveAll(Iterable<S> entities) {
diff --git a/src/main/java/co/jp/app/repository/UserRepository.java b/src/main/java/co/jp/app/repository/UserRepository.java
new file mode 100644
index 0000000..973aa7a
--- /dev/null
+++ b/src/main/java/co/jp/app/repository/UserRepository.java
@@ -0,0 +1,16 @@
+package co.jp.app.repository;
+
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.repository.query.Param;
+
+import co.jp.app.entity.UserEntity;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface UserRepository extends JpaRepository<UserEntity, Integer> {
+
+	UserEntity getUserByEmail(@Param("email") String email);
+
+
+}
\ No newline at end of file
diff --git a/src/main/java/co/jp/app/repository/userRepository.java b/src/main/java/co/jp/app/repository/userRepository.java
deleted file mode 100644
index 8c89ccd..0000000
--- a/src/main/java/co/jp/app/repository/userRepository.java
+++ /dev/null
@@ -1,18 +0,0 @@
-package co.jp.app.repository;
-
-
-import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.data.repository.query.Param;
-
-import co.jp.app.entity.UserEntity;
-
-public interface userRepository extends JpaRepository<UserEntity, String> {
-
-	public default UserEntity getByName(@Param("name") String name) {
-		return getByName(name);
-	}
-
-	public default  UserEntity getByEmail(@Param("email")String email) {
-		return getByEmail(email);
-	}
-}
diff --git a/src/main/java/co/jp/app/service/erraService.java b/src/main/java/co/jp/app/service/ErraService.java
similarity index 92%
rename from src/main/java/co/jp/app/service/erraService.java
rename to src/main/java/co/jp/app/service/ErraService.java
index a8d57a1..aa267fb 100644
--- a/src/main/java/co/jp/app/service/erraService.java
+++ b/src/main/java/co/jp/app/service/ErraService.java
@@ -8,7 +8,7 @@ import co.jp.app.repository.erraRepository;
 
 
 @Service
-public class erraService {
+public class ErraService {
 
 @Autowired
 erraRepository erraDao;
diff --git a/src/main/java/co/jp/app/service/uploadService.java b/src/main/java/co/jp/app/service/UploadService.java
similarity index 74%
rename from src/main/java/co/jp/app/service/uploadService.java
rename to src/main/java/co/jp/app/service/UploadService.java
index cd14bdc..d1fd207 100644
--- a/src/main/java/co/jp/app/service/uploadService.java
+++ b/src/main/java/co/jp/app/service/UploadService.java
@@ -6,13 +6,13 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import co.jp.app.entity.PetEntity;
-import co.jp.app.repository.uploadRepository;
+import co.jp.app.repository.UploadRepository;
 
 @Service
-public class uploadService {
+public class UploadService {
 
 	@Autowired
-	private uploadRepository uploadDao;
+	private UploadRepository uploadDao;
 
 	public List<PetEntity> saveAll(Iterable<PetEntity> entities) {
 		
diff --git a/src/main/java/co/jp/app/service/UserService.java b/src/main/java/co/jp/app/service/UserService.java
new file mode 100644
index 0000000..d060899
--- /dev/null
+++ b/src/main/java/co/jp/app/service/UserService.java
@@ -0,0 +1,51 @@
+package co.jp.app.service;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import co.jp.app.entity.UserEntity;
+import co.jp.app.repository.UserRepository;
+
+
+@Service
+public class UserService {
+
+	private final UserRepository userEntityRepository;
+	// private final PasswordEncoder passwordEncoder; // 注入密码编码器
+
+	@Autowired
+	public UserService(UserRepository userEntityRepository /*, PasswordEncoder passwordEncoder */) {
+		this.userEntityRepository = userEntityRepository;
+		// this.passwordEncoder = passwordEncoder;
+	}
+
+	@Transactional // 整个注册过程应该是一个事务
+	public UserEntity registerNewUser(String name, String email, String rawPassword) throws Exception {
+		// 1. 检查邮箱是否已被注册
+		if (userEntityRepository.existsByEmail(email)) {
+			throw new Exception("错误：该邮箱地址已被注册！"); // 或者自定义异常
+		}
+
+		// (可选) 检查用户名是否已被注册 (如果您有用户名字段)
+		// if (userEntityRepository.existsByUsername(username)) {
+		//     throw new Exception("错误：该用户名已被注册！");
+		// }
+
+		// 2. 创建新的 UserEntity 对象
+		UserEntity newUser = new UserEntity();
+		newUser.setName(name);
+		newUser.setEmail(email);
+
+		// 3. 对密码进行哈希加密 (非常重要！)
+		// String hashedPassword = passwordEncoder.encode(rawPassword);
+		// newUser.setPassword(hashedPassword);
+		newUser.setPassword(rawPassword); // 实际项目中必须加密！这里为了简化先直接赋值
+
+		// 4. 设置其他默认属性，例如账户状态、角色等 (如果需要)
+		// newUser.setActive(true);
+		// newUser.setRoles(...);
+
+		// 5. 保存新用户到数据库
+		return userEntityRepository.save(newUser);
+	}
+}
diff --git a/src/main/java/co/jp/app/service/userService.java b/src/main/java/co/jp/app/service/userService.java
deleted file mode 100644
index a2f4797..0000000
--- a/src/main/java/co/jp/app/service/userService.java
+++ /dev/null
@@ -1,25 +0,0 @@
-package co.jp.app.service;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-
-import co.jp.app.entity.UserEntity;
-import co.jp.app.repository.userRepository;
-
-
-@Service
-public class userService {
-
-	@Autowired
-	userRepository userdao;
-
-	public UserEntity getNameByEntity(String name) {
-		return userdao.getByName(name);
- 
-	}
-
-	public UserEntity getEmailByEntity(String email) {
-		return userdao.getByEmail(email);
-
-	}
-}
diff --git a/target/classes/co/jp/app/Dog1Application.class b/target/classes/co/jp/app/Dog1Application.class
index 30bb284..afb8abe 100644
Binary files a/target/classes/co/jp/app/Dog1Application.class and b/target/classes/co/jp/app/Dog1Application.class differ
diff --git a/target/classes/co/jp/app/controller/PetController.class b/target/classes/co/jp/app/controller/PetController.class
index f21b7c2..f48a338 100644
Binary files a/target/classes/co/jp/app/controller/PetController.class and b/target/classes/co/jp/app/controller/PetController.class differ
diff --git a/target/classes/co/jp/app/controller/loginController.class b/target/classes/co/jp/app/controller/loginController.class
index ad19f38..44f94d4 100644
Binary files a/target/classes/co/jp/app/controller/loginController.class and b/target/classes/co/jp/app/controller/loginController.class differ
diff --git a/target/classes/co/jp/app/controller/uploadController.class b/target/classes/co/jp/app/controller/uploadController.class
index 942480a..936a46c 100644
Binary files a/target/classes/co/jp/app/controller/uploadController.class and b/target/classes/co/jp/app/controller/uploadController.class differ
diff --git a/target/classes/co/jp/app/entity/ErrorEntity.class b/target/classes/co/jp/app/entity/ErrorEntity.class
index 0b00d1c..eccb95c 100644
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diff --git a/target/classes/co/jp/app/entity/PetEntity.class b/target/classes/co/jp/app/entity/PetEntity.class
index d110b1e..9e8e0e9 100644
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diff --git a/target/classes/co/jp/app/entity/UserEntity.class b/target/classes/co/jp/app/entity/UserEntity.class
index 9a3ccf3..814609f 100644
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diff --git a/target/classes/co/jp/app/repository/PetRepository.class b/target/classes/co/jp/app/repository/PetRepository.class
index 7b03a44..4138eb6 100644
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diff --git a/target/classes/co/jp/app/repository/erraRepository.class b/target/classes/co/jp/app/repository/erraRepository.class
index 0bbdbf2..5e92a19 100644
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diff --git a/target/classes/co/jp/app/repository/uploadRepository.class b/target/classes/co/jp/app/repository/uploadRepository.class
index eb9eb15..562f6ae 100644
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diff --git a/target/classes/co/jp/app/repository/userRepository.class b/target/classes/co/jp/app/repository/userRepository.class
index 57a25b5..cd1a98c 100644
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diff --git a/target/classes/co/jp/app/service/PetService.class b/target/classes/co/jp/app/service/PetService.class
index b31b3cf..19c59c8 100644
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diff --git a/target/classes/co/jp/app/service/erraService.class b/target/classes/co/jp/app/service/erraService.class
index 36f4267..0ff8c60 100644
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index b6720fc..354dca0 100644
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diff --git a/target/classes/co/jp/app/service/userService.class b/target/classes/co/jp/app/service/userService.class
index e58eefa..9a0337a 100644
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