Spring Boot Admin
1.Spring Boot Admin是什么？
它是用于监控springboot应用程序的监控系统，应用程序通过Apring Boot Admin Client进行注册（通过HTTP的方式），或者使用springcloud来发现（比如：eureka)，UI只是在Spring Boot Actuator端点上的一个AngularJs应用程序
2、开始
2.1、设置spring Boot Admin Server
1.pom.xml
<dependency><groupId>de.codecentric</groupId><artifactId>spring-boot-admin-server</artifactId><version>1.5.4</version></dependency><dependency><groupId>de.codecentric</groupId><artifactId>spring-boot-admin-server-ui</artifactId><version>1.5.4</version></dependency>
2.通过在配置中添加@enableadminserver，来导入Spring Boot Admin Server配置:
@Configuration@EnableAutoConfiguration@EnableAdminServerpublic class SpringBootAdminApplication {public static void main(String[] args) {SpringApplication.run(SpringBootAdminApplication.class, args);}}
2.2、注册客户端应用程序
2.2.1、spring-boot-admin-starter-client
想要注册的每个应用程序都必须包含Spring Boot Admin Client。
1.在依赖项添加spring-boo-admin-starclient-client:
pom.xml
<dependency><groupId>de.codecentric</groupId><artifactId>spring-boot-admin-starter-client</artifactId><version>1.5.4</version></dependency>
2.通过配置Spring Boot Admin Server URL来启用SBA客户端
application.yml | application.properties
spring.boot.admin.url: http://localhost:8080 management.security.enabled: false
Spring Boot Admin Server的URL
所有端点在缺省情况下都是安全的。为了简便起见，禁用安全性
3.安全
1.spring-boot-admin-server-ui-login和spring-boot-starter-security添加到依赖项中
<dependency><groupId>de.codecentric</groupId><artifactId>spring-boot-admin-server-ui-login</artifactId><version>1.5.2</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-security</artifactId></dependency>
2.Spring的安全配置可能如下:
## Securing Spring Boot Admin Server@Configurationpublic static class SecurityConfig extends WebSecurityConfigurerAdapter {@Overrideprotected void configure(HttpSecurity http) throws Exception {// Page with login form is served as /login.html and does a POST on /loginhttp.formLogin().loginPage("/login.html").loginProcessingUrl("/login").permitAll();// The UI does a POST on /logout on logouthttp.logout().logoutUrl("/logout");// The ui currently doesn't support csrfhttp.csrf().disable();// Requests for the login page and the static assets are allowedhttp.authorizeRequests().antMatchers("/login.html", "/**/*.css", "/img/**", "/third-party/**").permitAll();// ... and any other request needs to be authorizedhttp.authorizeRequests().antMatchers("/**").authenticated();// Enable so that the clients can authenticate via HTTP basic for registeringhttp.httpBasic();}}
3.当actuator endpoints使用HTTP基本身份验证时，SBA服务器需要凭证来访问它们，在注册应用程序时，可以在元数据中提交凭据，BasicAuthHttpHeaderProvider使用该元数据添加授权头来访问应用程序的actuator endpoints，可以提供自己的httpheadprovider来改变行为(例如添加一些解密)或添加额外的头。
## Securing Client Actuator Endpointsspring.boot.admin.client.metadata.user.name=${security.user.name}spring.boot.admin.client.metadata.user.password=${security.user.password}spring.boot.admin.url=http://localhost:9090/dlc-admin
DEMO:Spring-Boot-admin-example
4.发送邮件配置
1.配置一个JavaMailSender，使用spring-startmail-mail，并设置一个接收方。
pom.xml
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-mail</artifactId></dependency>
application.properties
spring.mail.host=spring.boot.admin.notify.mail.to=admin@
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