使用SpringBoot很久了，但是很少使用到SpringBoot的查看和监控，将来八成也不会用到，万一有机会用到呢？所以记录一下以前学习SpringBoot+actuator和adminUI实现监控中心的方式
Springboot的版本2.0.x
<parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.0.5.RELEASE</version><relativePath/> <!-- lookup parent from repository -->
</parent>
导入对应的包
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-actuator</artifactId><version>2.0.5.RELEASE</version>
</dependency><!-- security 一旦导入就会生效 -->
<!--
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-security</artifactId>
</dependency><dependency><groupId>org.springframework.security</groupId><artifactId>spring-security-test</artifactId><scope>test</scope>
</dependency>-->
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId>
</dependency>
application.properties
server.port=7080# 配置用户名和密码
#spring.security.user.name=admin
#spring.security.user.password=123456# 端点信息配置
management.server.port=8081
management.server.servlet.context-path=/sys
# 默认 never always可以显示硬盘使用情况和线程情况
management.endpoint.health.show-details=always
# 端点暴露的内容，默认["health","info"]，设置"*"代表暴露所有可访问的端点
management.endpoints.web.exposure.include=*# actuator 信息
info.actuator.name=test启动之后
访问
http://localhost:8081/sys/actuator
在这里使用的Actuator是spring boot的一个附加功能,可帮助你在应用程序生产环境时监视和管理应用程序。可以使用HTTP的各种请求来监管,审计,收集应用的运行情况.特别对于微服务管理十分有意义.缺点：没有可视化界面。
使用场景，针对微服务的服务状态监控，服务器的内存变化（堆内存，线程，日志管理等），检测服务配置连接地址是否可用（模拟访问，懒加载），统计现在有多少个bean(Spring容器中的bean) 统计接口数量， 应用场景：生产环境
/actuator/beans 显示应用程序中所有Spring bean的完整列表 /actuator/configprops 显示所有配置信息 /actuator/env 陈列所有的环境变量 /actuator/mappings 显示所有@RequestMapping的url整理列表 /actuator/health 显示应用程序运行状况信息 up表示成功 down失败，对于懒加载没报错的可以看到控制台报错了 /actuator/info 查看自定义应用信息
懒加载有个缺点，例如mysql的配置，启动的时候不会发现错误，只有运行的时候才报错
当访问
http://localhost:8081/sys/actuator/health
使用adminUI的方式 client客户端导包和配置
pom.xml
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-actuator</artifactId><version>2.0.5.RELEASE</version>
</dependency>
<dependency><groupId>de.codecentric</groupId><artifactId>spring-boot-admin-starter-client</artifactId><version>2.0.5</version>
</dependency>
application.properties
server.port=8071spring.application.name=boot-example-admin-clientspring.boot.admin.client.url=http://127.0.0.1:8050/myw-admin
spring.boot.admin.client.username=admin
spring.boot.admin.client.password=123456
spring.boot.admin.client.instance.service-url=http://127.0.0.1:8071#management.server.port=8081
#management.server.servlet.context-path=/sys
# 默认 never always可以显示硬盘使用情况和线程情况
management.endpoint.health.show-details=always
# 端点暴露的内容，默认["health","info"]，设置"*"代表暴露所有可访问的端点
management.endpoints.web.exposure.include=*
使用admin-ui的方式 server服务端导包和配置
pom.xml
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency><groupId>de.codecentric</groupId><artifactId>spring-boot-admin-starter-server</artifactId><version>2.0.5</version>
</dependency>
application.properties
server.port=8050
server.servlet.context-path=/myw-admin
spring.application.name=boot-example-admin-serverspring.security.user.name=admin
spring.security.user.password=123456WebSecurityConfig.java
package boot.example.admin.server;import de.codecentric.boot.admin.server.config.AdminServerProperties;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.web.csrf.CookieCsrfTokenRepository;/*** SpringBootAdmin 登录鉴权使用**/
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {private final String contextPath;public WebSecurityConfig(AdminServerProperties adminServerProperties) {this.contextPath = adminServerProperties.getContextPath();}@Overrideprotected void configure(HttpSecurity http) throws Exception {// 跨域设置，SpringBootAdmin客户端通过instances注册，见InstancesControllerhttp.csrf().csrfTokenRepository(CookieCsrfTokenRepository.withHttpOnlyFalse()).ignoringAntMatchers(contextPath + "/instances");http.authorizeRequests().antMatchers(contextPath + "/assets/**").permitAll(); // 静态资源http.authorizeRequests().antMatchers(contextPath + "/actuator/**").permitAll(); // 自身监控http.authorizeRequests().anyRequest().authenticated(); // 所有请求必须通过认证// 整合spring-boot-admin-server-uihttp.formLogin().loginPage("/login").permitAll();http.logout().logoutUrl("/logout").logoutSuccessUrl("/login");// 启用basic认证，SpringBootAdmin客户端使用的是basic认证http.httpBasic();}
}启动客户端和服务端的监控中心
http://localhost:8050/myw-admin/login#/applications
记录一下在SpringBoot2.6.6版本使用
<parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.6.6</version><relativePath/> <!-- lookup parent from repository -->
</parent>
client的pom.xml
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-actuator</artifactId><version>2.6.6</version>
</dependency>
<dependency><groupId>de.codecentric</groupId><artifactId>spring-boot-admin-starter-client</artifactId><version>2.5.6</version>
</dependency>
application.properties 1
server.port=8071spring.application.name=boot-example-admin-client1spring.boot.admin.client.url=http://localhost:8050
spring.boot.admin.client.username=admin
spring.boot.admin.client.password=123456management.endpoint.health.show-details=always
management.endpoints.web.exposure.include=*application.properties 2
server.port=8072spring.application.name=boot-example-admin-client2spring.boot.admin.client.url=http://localhost:8050
spring.boot.admin.client.username=admin
spring.boot.admin.client.password=123456management.server.port=8082
management.server.base-path = /sys
management.endpoint.health.show-details=always
management.endpoints.web.exposure.include=*
application.properties 3
server.port=8073spring.application.name=boot-example-admin-client3spring.boot.admin.client.url=http://localhost:8050
spring.boot.admin.client.username=admin
spring.boot.admin.client.password=123456#spring.security.user.name=admin
#spring.security.user.password=123456management.server.port=8083
management.server.base-path = /sys
management.endpoint.health.show-details=always
management.endpoints.web.exposure.include=*
服务端的配置
pom.xml
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId>
</dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-security</artifactId>
</dependency><dependency><groupId>de.codecentric</groupId><artifactId>spring-boot-admin-starter-server</artifactId><version>2.5.6</version>
</dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
application.properties
server.port=8050spring.application.name=boot-example-admin-serverspring.security.user.name=admin
spring.security.user.password=123456备注记录到这里 将来会不会用到再说了。
