微服务springcloud—Feign修改用户微服务和修改电影微服务

小灰灰 2022-04-22 00:58 219阅读 0赞

# 修改用户为服务 #

# 1.复制项目microservice-provider-user，将ArtfactId修改为microservice-provider-user-with-auth。 #

# 2.微服务添加如下依赖 #

<dependency>
          	 <groupId>org.springframework.cloud</groupId>
          	 <artifactId>spring-cloud-starter-security</artifactId>
        	 <version>2.0.1.RELEASE</version>
        </dependency>

# 3.创建Spring Security的配置类 #

@Configuration
    @EnableWebSecurity
    @EnableGlobalMethodSecurity(prePostEnabled = true)
    public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
    
        @Override
        protected void configure(HttpSecurity http) throws Exception{
            //所有的请求，都需要经过HTTP basic认证
            http.authorizeRequests().anyRequest().authenticated().and().httpBasic();
        }
    
        @Bean
        public PasswordEncoder passwordEncoder(){
            //明文编码器。这是一个不做任何操作的密码编码器，是Spring提供给我们做明文测试的
            // A password encoder that does nothing. Useful for testing where working with plain text
            return NoOpPasswordEncoder.getInstance();
        }
    
        @Autowired
        private CustomUserDetailsService userDatailsService ;
    
        @Override
        protected void configure(AuthenticationManagerBuilder auth) throws Exception {
            auth.userDetailsService(this.userDatailsService).passwordEncoder(this.passwordEncoder());
        }
    
        @Component
        class CustomUserDetailsService implements UserDetailsService {
            /**
             * 模拟两个账号
             * 1. 账号是user ，密码是password1 角色是user-role
             * 2. 账号是admin，密码是password2 角色是admin-role
             */
            @Override
            public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException{
                if ("user".equals(username)){
                    return new SecurityUser("user", "password1", "user-role");
                }else if ("admin".equals(username)){
                    return new SecurityUser("admin", "password2", "admin-role");
                }else{
                 return null;
                }
            }
        }
    
        class SecurityUser implements UserDetails{
            private static final long serialVersionUID = 1L;
    
            public SecurityUser(String username, String password, String role){
                super();
                this.username = username;
                this.password = password;
                this.role = role;
            }
            public SecurityUser(){
            }
    
            private Long id;
            private String username;
            private String password;
            private String role;
    
    
            @Override
            public Collection<? extends GrantedAuthority> getAuthorities() {
                Collection<GrantedAuthority> authorities = new ArrayList<GrantedAuthority>();
                SimpleGrantedAuthority authority = new SimpleGrantedAuthority(this.role);
                authorities.add(authority);
                return authorities;
            }
    
            @Override
            public boolean isAccountNonExpired() {
                return true;
            }
    
            @Override
            public boolean isAccountNonLocked() {
                return true;
            }
    
            @Override
            public boolean isCredentialsNonExpired() {
                return true;
            }
    
            @Override
            public boolean isEnabled() {
                return true;
            }
    
            @Override
            public String getPassword() {
                return this.password;
            }
    
            @Override
            public String getUsername() {
                return this.username;
            }
    
            public Long getId() {
                return this.id;
            }
    
            public void setId(Long id) {
                this.id = id;
            }
    
            public void setUsername(String username) {
                this.username = username;
            }
    
            public void setPassword(String password) {
                this.password = password;
            }
    
            public String getRole() {
                return this.role;
            }
    
            public void setRole(String role) {
                this.role = role;
            }
        }

代码中模拟了两个账号： user和admin，他们的密码分别是password1和password2，角色分别为user-role和admin-role。

# 4.修改Controller，在其中打印当前登录的用户信息。 #

@RestController
    public class UserController { 
      @Autowired
      private UserRepository userRepository;
      private static final Logger LOGGER =  LoggerFactory.getLogger(UserController.class);
    
      @GetMapping("/{id}")
      public User findById(@PathVariable Long id) { 
        Object principal = SecurityContextHolder.getContext().getAuthentication().getPrincipal();
        if(principal instanceof UserDetails){ 
          UserDetails user = (UserDetails) principal;
          Collection<? extends GrantedAuthority> collection = user.getAuthorities();
          for (GrantedAuthority c : collection){ 
            //打印当前登录用户的信息
            UserController.LOGGER.info("当前用户是{}，角色是{}",user.getUsername(), c.getAuthority());
          }
        }else{ 
         //do other things
        }
        User findOne = this.userRepository.findById(id).get();
        return findOne;
      }
    }

# 测试 #

1.启动microservice-discovery-eureka。  
2.启动microservice-provider-user-with-auth。  
3.访问http://localhost:8000/1,会弹出登录对话框。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzQzOTQ5NA_size_16_color_FFFFFF_t_70]

4.使用user/password1登录，可看到如下日志。  
![在这里插入图片描述][20181101105539117.png]

5.使用admin/password2登录，可看到如下日志。  
![在这里插入图片描述][20181101105657387.png]

# 修改电影微服务 #

# 1.复制项目microservice-consumer-movie-feign，将ArtifactId修改为microservice-consumer-movie-feign-manual。 #

# 2.去掉Feign接口UserFeignClient上的@FeignClient注解 #

# 3.去掉启动类上@EnableFeignClients注解 #

# 4.修改Controller如下： #

@Import(FeignClientsConfiguration.class)
    @RestController
    public class MovieController { 
        private UserFeignClient userUserFeignClient;
        private UserFeignClient adminUserFeignClient;
    
        @Autowired
        public MovieController(Decoder decoder, Encoder encoder, Client client, Contract contract){ 
            //这边的decoder、encoder、client、contract,可以Debug看看是什么实例
            this.userUserFeignClient = Feign.builder().client(client).encoder(encoder).decoder(decoder).contract(contract)
                .requestInterceptor(new BasicAuthRequestInterceptor("user", "password1"))
                 .target(UserFeignClient.class, "http://users/");
            this.adminUserFeignClient= Feign.builder().client(client).encoder(encoder).decoder(decoder).contract(contract)
                .requestInterceptor(new BasicAuthRequestInterceptor("admin","password2"))
                .target(UserFeignClient.class, "http://users/");
        }
    
        @GetMapping("/user-user/{id}")
        public User findByIdUser(@PathVariable Long id){ 
            return this.userUserFeignClient.findById(id);
        }
    
        @GetMapping("/user-admin/{id}")
        public User findByIdAdmin(@PathVariable Long id){ 
            return this.adminUserFeignClient.findById(id);
        }
    }

# 测试 #

1.启动microservice-discovery-eureka。  
2.启动microservice-provider-user-with-auth。  
3.启动microservice-consumer-movie-feign-manual。  
4.访问http://localhost:8010/user-user/1,微服务打印如下日志。  
![在这里插入图片描述][20181101110536648.png]

5.访问http://localhost:8010/user-admin/1,微服务打印如下日志。  
![在这里插入图片描述][20181101110607383.png]

本文大部分内容转载自周立的《Spring Cloud与Docker微服务架构实战》

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzQzOTQ5NA_size_16_color_FFFFFF_t_70]: /images/20220422/19841bf9626d46ba805939d0f3994bba.png
[20181101105539117.png]: /images/20220422/3eeca8c1a2c64400aebdb28e7ad7fc8a.png
[20181101105657387.png]: /images/20220422/181c45da00344354b5fed656ce911323.png
[20181101110536648.png]: /images/20220422/e48a38474381456eb872c0f4f8dd3ffe.png
[20181101110607383.png]: /images/20220422/8d5543e0936d4233ad2b85c92233256d.png