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深圳公共资源交易中心,网站seo优化怎么做,个体户可以做网站建设,哪种公司一般会做网站一、背景 随着项目越来越大，需要将多个服务拆分成微服务，使代码看起来不要过于臃肿，庞大。微服务之间通常采取feign交互，为了保证不同微服务之间增加授权校验，需要增加Spring Security登录验证，为了多个服务…

一、背景

        随着项目越来越大，需要将多个服务拆分成微服务，使代码看起来不要过于臃肿，庞大。微服务之间通常采取feign交互，为了保证不同微服务之间增加授权校验，需要增加Spring Security登录验证，为了多个服务之间session可以共享，可以通过数据库实现session共享，也可以采用redis-session实现共享。

        本文采取Spring security做登录校验，用redis做session共享。实现单服务登录可靠性，微服务之间调用的可靠性与通用性

二、代码

本文项目采取 主服务一服务、子服务二 来举例

1、服务依赖文件

主服务依赖

    implementation group: 'org.springframework.boot', name: 'spring-boot-starter-data-redis', version: '2.5.4'implementation group: 'org.springframework.session', name: 'spring-session-data-redis', version: '2.4.1'implementation(group: 'io.github.openfeign', name: 'feign-httpclient')implementation 'org.springframework.boot:spring-boot-starter-security'

子服务依赖

    implementation group: 'org.springframework.boot', name: 'spring-boot-starter-data-redis', version: '2.5.4'implementation group: 'org.springframework.session', name: 'spring-session-data-redis', version: '2.4.1'implementation 'org.springframework.boot:spring-boot-starter-security'

2、服务配置文件

主服务配置文件

#redis连接

spring.redis.host=1.2.3.4

#Redis服务器连接端口

spring.redis.port=6379

#Redis服务器连接密码

spring.redis.password=password

#连接池最大连接数（使用负值表示没有限制）

spring.redis.pool.max-active=8

#连接池最大阻塞等待时间（使用负值表示没有限制）

spring.redis.pool.max-wait=-1

#连接池中的最大空闲连接

spring.redis.pool.max-idle=8

#连接池中的最小空闲连接

spring.redis.pool.min-idle=0

#连接超时时间（毫秒）

spring.redis.timeout=30000

#数据库

spring.redis.database=0

#redis-session配置

spring.session.store-type=redis

#部分post请求过长会报错，需加配置

server.tomcat.max-http-header-size=65536

子服务配置文件

#单独登录秘钥

micService.username=service

micService.password=aaaaaaaaaaaaa

#登录白名单

micService.ipList=1.2.3.4,1.2.3.5,127.0.0.1,0:0:0:0:0:0:0:1

spring.redis.host=1.2.3.4

#Redis服务器连接端口

spring.redis.port=6379

#Redis服务器连接密码

spring.redis.password=password

#连接池最大连接数（使用负值表示没有限制）

spring.redis.pool.max-active=8

#连接池最大阻塞等待时间（使用负值表示没有限制）

spring.redis.pool.max-wait=-1

#连接池中的最大空闲连接

spring.redis.pool.max-idle=8

#连接池中的最小空闲连接

spring.redis.pool.min-idle=0

#连接超时时间（毫秒）

spring.redis.timeout=30000

#数据库

spring.redis.database=0

#最大请求头限制

server.maxPostSize=-1

server.maxHttpHeaderSize=102400

#redis session缓存

spring.session.store-type=redis

server.servlet.session.timeout=30m

3、登录校验文件

主服务SecurityConfig.java

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {//注入密码加密的类@Beanpublic AuthenticationProvider authenticationProvider() {AuthenticationProvider authenticationProvider = new EncoderProvider();return authenticationProvider;}@Autowiredpublic void configureGlobalSecurity(AuthenticationManagerBuilder auth) throws Exception {auth.userDetailsService(userDetailsService);auth.authenticationProvider(authenticationProvider());}public static final Logger logger = LoggerFactory.getLogger(SecurityConfig.class);@Overrideprotected void configure(HttpSecurity http) throws Exception {http.formLogin().successHandler((request,response,authentication) -> {HttpSession session = request.getSession();session.setAttribute("TaobaoUser",authentication.getPrincipal());ObjectMapper mapper = new ObjectMapper();response.setContentType("application/json;charset=utf-8");PrintWriter out = response.getWriter();TaobaoUser user = (CurrentUser)session.getAttribute("TaobaoUser");out.write(mapper.writeValueAsString(user));out.flush();out.close();}).failureHandler((request,response,authentication) -> {ObjectMapper mapper = new ObjectMapper();response.setContentType("application/json;charset=utf-8");PrintWriter out = response.getWriter();out.write(mapper.writeValueAsString(new ExceptionMessage("400",authentication.getMessage())));out.flush();out.close();}).loginPage("/Login.html").loginProcessingUrl("/login").and().authorizeRequests().antMatchers("/api/common/invalidUrl","/**/*.css", "/**/*.js", "/**/*.gif ", "/**/*.png ", "/**/*.jpg", "/webjars/**", "**/favicon.ico", "/guestAccess", "/Login.html","/v2/api-docs","/configuration/security","/configuration/ui","/api/common/CheckLatestVersionInfo").permitAll().anyRequest()//任何请求.authenticated().and().sessionManagement().maximumSessions(-1).sessionRegistry(sessionRegistry());;http.csrf().disable();}@Autowiredprivate FindByIndexNameSessionRepository sessionRepository;@Beanpublic SpringSessionBackedSessionRegistry sessionRegistry(){return new SpringSessionBackedSessionRegistry(sessionRepository);}}

EncoderProvider.java

@Service
public class EncoderProvider implements AuthenticationProvider {public static final Logger logger = LoggerFactory.getLogger(EncoderProvider.class);/*** 自定义验证方式*/@Overridepublic Authentication authenticate(Authentication authentication) throws AuthenticationException {try {//支持用户名和员工号登录 可能为用户名或员工号String username = authentication.getName();String credential = (String) authentication.getCredentials();//加密过程在这里体现TaobaoUser user= userService.getUserData(username);//校验，用户名是否存在if(user==null){throw new DisabledException("用户名或密码错误");}//校验登录状态checkPassword()Collection<GrantedAuthority> authorities = new ArrayList<>();return new UsernamePasswordAuthenticationToken(userCurrent, credential, authorities);} catch (Exception ex) {ex.printStackTrace();throw new DisabledException("登录发生错误 : " + ex.getMessage());}}@Overridepublic boolean supports(Class<?> arg0) {return true;}

子服务SecurityConfig.java

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {//注入密码加密的类@Beanpublic AuthenticationProvider authenticationProvider() {AuthenticationProvider authenticationProvider = new EncoderProvider();return authenticationProvider;}@Autowiredpublic void configureGlobalSecurity(AuthenticationManagerBuilder auth) throws Exception {auth.authenticationProvider(authenticationProvider());}public static final Logger logger = LoggerFactory.getLogger(SecurityConfig.class);@Overrideprotected void configure(HttpSecurity http) throws Exception {logger.info("用户登录日志test1 username:"+http.toString());http.formLogin().loginProcessingUrl("/login").successHandler((request,response,authentication) -> {HttpSession session = request.getSession();session.setAttribute("TaobaoUser",authentication.getPrincipal());ObjectMapper mapper = new ObjectMapper();response.setContentType("application/json;charset=utf-8");PrintWriter out = response.getWriter();TaobaoUser user = (TaobaoUser )session.getAttribute("TaobaoUser");out.write(mapper.writeValueAsString(user));out.flush();out.close();}).failureHandler((request,response,authentication) -> {ObjectMapper mapper = new ObjectMapper();response.setContentType("application/json;charset=utf-8");PrintWriter out = response.getWriter();out.write(mapper.writeValueAsString(new ExceptionMessage("400",authentication.getMessage())));out.flush();out.close();}).loginPage("/Login.html").and().authorizeRequests().antMatchers("/**/*.css", "/**/*.js", "/**/*.gif ", "/**/*.png ","/**/*.jpg", "/webjars/**", "**/favicon.ico", "/Login.html","/v2/api-docs","/configuration/security","/configuration/ui").permitAll().anyRequest().authenticated().and().sessionManagement().maximumSessions(-1).sessionRegistry(sessionRegistry());http.csrf().disable();}@Autowiredprivate FindByIndexNameSessionRepository sessionRepository;@Beanpublic SpringSessionBackedSessionRegistry sessionRegistry(){return new SpringSessionBackedSessionRegistry(sessionRepository);}}

EncoderProvider.java

@Service
public class EncoderProvider implements AuthenticationProvider {public static final Logger logger = LoggerFactory.getLogger(EncoderProvider.class);@Value("${service.username}")private String  userName1;@Value("${service.ipList}")private String  ipList;/*** 自定义验证方式*/@Overridepublic Authentication authenticate(Authentication authentication) throws AuthenticationException {try {//支持用户名和员工号登录 可能为用户名或员工号String username = authentication.getName();String credential = (String)authentication.getCredentials();TaobaoUser user=new TaobaoUser();if(username.equals(userName1)){List<String> ips = Arrays.asList(ipList.split(","));WebAuthenticationDetails details = (WebAuthenticationDetails) authentication.getDetails();String remoteIp = details.getRemoteAddress();logger.info("ip为{}-通过用户{}调用接口",remoteIp,username);if(!ips.contains(remoteIp)){throw new DisabledException("无权登陆！");}}else{throw new DisabledException("账户不存在！");}user.setA("A");Collection<GrantedAuthority> authorities = new ArrayList<>();return new UsernamePasswordAuthenticationToken(currentUser, credential, authorities);} catch (Exception ex) {ex.printStackTrace();throw new DisabledException("登录发生错误 : " + ex.getMessage());}}@Overridepublic boolean supports(Class<?> arg0) {return true;}}

4、主服务feign配置

FeignManage.java

#url = "${file.client.url}",
@FeignClient(name="file-service",fallback = FeignFileManageFallback.class,configuration = FeignConfiguration.class)
public interface FeignFileManage {@RequestMapping(value = "/file/upload", method = {RequestMethod.POST}, consumes = MediaType.MULTIPART_FORM_DATA_VALUE)ApiBaseMessage fileUpload(@RequestPart("file") MultipartFile file, @RequestParam("fileName") String fileName) ;}

public class FeignManageFallback implements FeignManage{@Overridepublic ApiBaseMessage fileUpload(MultipartFile file, String type) {return ApiBaseMessage.getOperationSucceedInstance("400","失败");}}
FeignFileManageFallback.java
FeignConfiguration.java
@Configuration
@Import(FeignClientsConfiguration.class)
public class FeignConfiguration {/**删除请求头文件*/final String[] copyHeaders = new String[]{"transfer-encoding","Content-Length"};@Beanpublic FeignFileManageFallback echoServiceFallback(){return new FeignFileManageFallback();}@Beanpublic FeignBasicAuthRequestInterceptor getFeignBasicAuthRequestInterceptor(){return new FeignBasicAuthRequestInterceptor();}/***    feign 调用，添加CurrentUser*/private class FeignBasicAuthRequestInterceptor implements RequestInterceptor {@Overridepublic void apply(RequestTemplate template) {//1、使用RequestContextHolder拿到刚进来的请求数据ServletRequestAttributes requestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();if (requestAttributes != null) {HttpServletRequest request = requestAttributes.getRequest();Enumeration<String> headerNames = request.getHeaderNames();if (headerNames != null) {while (headerNames.hasMoreElements()) {String name = headerNames.nextElement();String values = request.getHeader(name);//删除的请求头if (!Arrays.asList(copyHeaders).contains(name)) {template.header(name, values);}}}}else{template.header("Accept", "*/*");template.header("Accept-Encoding", "gzip, deflate, br");template.header("Content-Type", "application/json");}//增加用户信息if(requestAttributes!=null && SessionHelper.getCurrentUser()!=null){try {template.header("TaobaoUser", URLEncoder.encode(JSON.toJSONString(SessionHelper.getCurrentUser()),"utf-8") );} catch (UnsupportedEncodingException e) {e.printStackTrace();}}}}}

5、主服务session文件

SessionUtil.java

public class SessionUtil {public static CurrentUser getCurrentUser() {HttpSession session = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest().getSession();CurrentUser user = (CurrentUser)session.getAttribute("TaobaoUser");return user;}public static void setCurrentUser(String userName){HttpSession session = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest().getSession();Collection<GrantedAuthority> authorities = new ArrayList<>();session.setAttribute("TaobaoUser",new CurrentUser(userName, "", authorities));}
}

三、完成配置后

1、直接访问主服务接口，不登录无法访问

2、直接访问自服务，不登录无法访问，（可通过nacos配置用户密码实现登录）

3、主服务通过feign调用子服务接口正常(session已共享)

4、子服务登陆之后，调用主服务理论也可以，需校验下主服务用户侧

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