帮我写一个代码1.设计企业级通用后台系统 利用JPA事项用户、角色、权限的创建 利用Spring Security事项多态授权
时间: 2024-01-24 11:04:40 浏览: 37
很抱歉,作为AI语言模型,我无法真正为你编写代码。但我可以为您提供以下的代码框架,供您参考。
```
// User entity
@Entity
public class User {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String username;
private String password;
@ManyToMany(fetch = FetchType.EAGER)
private Set<Role> roles;
// getters and setters
}
// Role entity
@Entity
public class Role {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String name;
@ManyToMany(fetch = FetchType.EAGER)
private Set<Permission> permissions;
// getters and setters
}
// Permission entity
@Entity
public class Permission {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String name;
// getters and setters
}
// UserRepository
@Repository
public interface UserRepository extends JpaRepository<User, Long> {
User findByUsername(String username);
}
// UserService interface
public interface UserService {
User save(User user);
User findByUsername(String username);
List<User> findAll();
}
// UserServiceImpl
@Service
public class UserServiceImpl implements UserService {
@Autowired
private UserRepository userRepository;
@Override
public User save(User user) {
return userRepository.save(user);
}
@Override
public User findByUsername(String username) {
return userRepository.findByUsername(username);
}
@Override
public List<User> findAll() {
return userRepository.findAll();
}
}
// RoleRepository
@Repository
public interface RoleRepository extends JpaRepository<Role, Long> {
Role findByName(String name);
}
// RoleService interface
public interface RoleService {
Role save(Role role);
Role findByName(String name);
List<Role> findAll();
}
// RoleServiceImpl
@Service
public class RoleServiceImpl implements RoleService {
@Autowired
private RoleRepository roleRepository;
@Override
public Role save(Role role) {
return roleRepository.save(role);
}
@Override
public Role findByName(String name) {
return roleRepository.findByName(name);
}
@Override
public List<Role> findAll() {
return roleRepository.findAll();
}
}
// PermissionRepository
@Repository
public interface PermissionRepository extends JpaRepository<Permission, Long> {
Permission findByName(String name);
}
// PermissionService interface
public interface PermissionService {
Permission save(Permission permission);
Permission findByName(String name);
List<Permission> findAll();
}
// PermissionServiceImpl
@Service
public class PermissionServiceImpl implements PermissionService {
@Autowired
private PermissionRepository permissionRepository;
@Override
public Permission save(Permission permission) {
return permissionRepository.save(permission);
}
@Override
public Permission findByName(String name) {
return permissionRepository.findByName(name);
}
@Override
public List<Permission> findAll() {
return permissionRepository.findAll();
}
}
// SecurityConfig
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Autowired
private CustomUserDetailsService userDetailsService;
@Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests()
.antMatchers("/admin/**").hasRole("ADMIN")
.antMatchers("/user/**").hasAnyRole("USER", "ADMIN")
.antMatchers("/**").permitAll()
.and().formLogin()
.and().logout().logoutSuccessUrl("/").permitAll();
}
@Bean
public PasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder();
}
@Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(userDetailsService).passwordEncoder(passwordEncoder());
}
}
// CustomUserDetailsService
@Service
public class CustomUserDetailsService implements UserDetailsService {
@Autowired
private UserService userService;
@Override
public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
User user = userService.findByUsername(username);
if (user == null) {
throw new UsernameNotFoundException("User not found");
}
return new org.springframework.security.core.userdetails.User(user.getUsername(), user.getPassword(),
getAuthorities(user));
}
private Collection<? extends GrantedAuthority> getAuthorities(User user) {
Set<GrantedAuthority> authorities = new HashSet<>();
for (Role role : user.getRoles()) {
authorities.add(new SimpleGrantedAuthority(role.getName()));
for (Permission permission : role.getPermissions()) {
authorities.add(new SimpleGrantedAuthority(permission.getName()));
}
}
return authorities;
}
}
```
上述代码框架中,JPA被用来实现用户、角色和权限的创建。Spring Security用于实现多态授权。`SecurityConfig`类用于配置web安全性,`CustomUserDetailsService`类用于加载用户信息,`UserServiceImpl`、`RoleServiceImpl`和`PermissionServiceImpl`类用于操作用户、角色和权限。
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