diff --git a/src/main/java/com/example/springdemo/dao/UsersRepository.java b/src/main/java/com/example/springdemo/dao/UsersRepository.java
index 7923b22..8ce0b42 100644
--- a/src/main/java/com/example/springdemo/dao/UsersRepository.java
+++ b/src/main/java/com/example/springdemo/dao/UsersRepository.java
@@ -1,11 +1,33 @@
 package com.example.springdemo.dao;
 
 import com.example.springdemo.entities.Users;
+import com.example.springdemo.entities.password.UsersPassword;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
+import org.springframework.data.jpa.repository.Query;
 import org.springframework.stereotype.Repository;
+import org.springframework.transaction.annotation.Transactional;
 
 @Repository
 public interface UsersRepository
         extends JpaRepository<Users, Long> {
     Users findByName(String name);
+
+    @Modifying
+    @Transactional
+    void deleteByName(String name);
+
+    //添加新用户时创建密码
+    void addPassword(UsersPassword usersPassword);
+
+    @Modifying
+    @Transactional
+    @Query("update UsersPassword UsersPwd set UsersPwd.password = ?1 where UsersPwd.users.id = ?2")
+    void updatePassword(String password, Long userID);
+
+    //删除账户时删除密码
+    @Modifying
+    @Transactional
+    @Query("delete from UsersPassword UsersPwd where UsersPwd.users.id = ?1")
+    void deletePasswordById(Long userID);
 }
diff --git a/src/main/java/com/example/springdemo/entities/Users.java b/src/main/java/com/example/springdemo/entities/Users.java
index 9ccee77..6849d6b 100644
--- a/src/main/java/com/example/springdemo/entities/Users.java
+++ b/src/main/java/com/example/springdemo/entities/Users.java
@@ -18,7 +18,7 @@ import java.util.List;
 public class Users {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private Integer id;//主键，用户ID
+    private Long id;//主键，用户ID
     private String name;//用户姓名
     private String sex;//用户性别
     @Column(name = "phoneNumber")
diff --git a/src/main/java/com/example/springdemo/service/UsersService.java b/src/main/java/com/example/springdemo/service/UsersService.java
index c8155bf..1117e72 100644
--- a/src/main/java/com/example/springdemo/service/UsersService.java
+++ b/src/main/java/com/example/springdemo/service/UsersService.java
@@ -1,6 +1,7 @@
 package com.example.springdemo.service;
 
 import com.example.springdemo.entities.Users;
+import com.example.springdemo.entities.password.UsersPassword;
 
 import java.util.Optional;
 
@@ -8,13 +9,21 @@ public interface UsersService {
 
     Users addUsers(Users user);
 
-    void deleteUsersById(Long id);
+    void deleteUsersById(Long userID);
+
+    void deleteUsersByName(String name);
 
     Users updateUsers(Users user);
 
     Iterable<Users> findAllUsers();
 
-    Optional<Users> findById(Long id);
+    Optional<Users> findById(Long userID);
 
     Users findByName(String name);
+
+    void addPassword(UsersPassword usersPassword);
+
+    void updatePassword(String password, Long userID);
+
+    void deletePasswordById(Long userID);
 }
diff --git a/src/main/java/com/example/springdemo/service/UsersServiceImpl.java b/src/main/java/com/example/springdemo/service/UsersServiceImpl.java
index 7faa640..7340b3f 100644
--- a/src/main/java/com/example/springdemo/service/UsersServiceImpl.java
+++ b/src/main/java/com/example/springdemo/service/UsersServiceImpl.java
@@ -2,6 +2,7 @@ package com.example.springdemo.service;
 
 import com.example.springdemo.dao.UsersRepository;
 import com.example.springdemo.entities.Users;
+import com.example.springdemo.entities.password.UsersPassword;
 import jakarta.annotation.Resource;
 import org.springframework.stereotype.Service;
 
@@ -18,8 +19,14 @@ public class UsersServiceImpl implements UsersService {
     }
 
     @Override
-    public void deleteUsersById(Long id) {
-        usersRepository.deleteById(id);
+    public void deleteUsersById(Long userID) {
+        usersRepository.deleteById(userID);
+        this.deletePasswordById(userID);
+    }
+
+    @Override
+    public void deleteUsersByName(String name) {
+        usersRepository.deleteByName(name);
     }
 
     @Override
@@ -33,12 +40,27 @@ public class UsersServiceImpl implements UsersService {
     }
 
     @Override
-    public Optional<Users> findById(Long id) {
-        return usersRepository.findById(id);
+    public Optional<Users> findById(Long userID) {
+        return usersRepository.findById(userID);
     }
 
     @Override
     public Users findByName(String name) {
         return usersRepository.findByName(name);
     }
+
+    @Override
+    public void addPassword(UsersPassword usersPassword) {
+        usersRepository.addPassword(usersPassword);
+    }
+
+    @Override
+    public void updatePassword(String password, Long userID) {
+        usersRepository.updatePassword(password, userID);
+    }
+
+    @Override
+    public void deletePasswordById(Long userID) {
+        usersRepository.deletePasswordById(userID);
+    }
 }