SpringBoot学习之SpringBoot执行器

在以往的分布式开发当中，各个服务节点的监控必不可少。监控包含有很多方面，比如说：内存占用情况，节点是否健康等。在spring-boot会给我们提供相关资源监控叫做spring-boot-actuator, 通过执行器可以帮我管理和监控生产环境下的应用服务。

　一。添加SpringBoot执行器的依赖

添加gradle配置依赖：

dependencies {
    compile(‘org.springframework.boot:spring-boot-starter-actuator‘)
}

　二。关于SpringBoot的端点

端点：可用于监控应用与应用进行交互，springboot包含很多内置内置端点。tips:参考官网的

ID	Description	Sensitive Default
`actuator`	Provides a hypermedia-based “discovery page” for the other endpoints. Requires Spring HATEOAS to be on the classpath.	true
`auditevents`	Exposes audit events information for the current application.	true
`autoconfig`	Displays an auto-configuration report showing all auto-configuration candidates and the reason why they ‘were’ or ‘were not’ applied.	true
`beans`	Displays a complete list of all the Spring beans in your application.	true
`configprops`	Displays a collated list of all `@ConfigurationProperties`.	true
`dump`	Performs a thread dump.	true
`env`	Exposes properties from Spring’s `ConfigurableEnvironment`.	true
`flyway`	Shows any Flyway database migrations that have been applied.	true
`health`	Shows application health information (when the application is secure, a simple ‘status’ when accessed over an unauthenticated connection or full message details when authenticated).	false
`info`	Displays arbitrary application info.	false
`loggers`	Shows and modifies the configuration of loggers in the application.	true
`liquibase`	Shows any Liquibase database migrations that have been applied.	true
`metrics`	Shows ‘metrics’ information for the current application.	true
`mappings`	Displays a collated list of all `@RequestMapping` paths.	true
`shutdown`	Allows the application to be gracefully shutdown (not enabled by default).	true
`trace`	Displays trace information (by default the last 100 HTTP requests).	true

如果使用spring-mvc时，我们可以访问以下节点：

ID	Description	Sensitive Default
`docs`	Displays documentation, including example requests and responses, for the Actuator’s endpoints. Requires `spring-boot-actuator-docs` to be on the classpath.	false
`heapdump`	Returns a GZip compressed `hprof` heap dump file.	true
`jolokia`	Exposes JMX beans over HTTP (when Jolokia is on the classpath).	true
`logfile`	Returns the contents of the logfile (if `logging.file` or `logging.path` properties have been set). Supports the use of the HTTP `Range` header to retrieve part of the log file’s content.	true

有几点要补充说明一下:

　　1).如果需要访问health端点，那么请在映射中访问http://xxxxx:xxxx/health.

2) 并不是所有端点都可以访问，在上述表格中如果Sensitive(是否敏感)的值如果为true，则访问会报401错误，不过好在在spring-boot配置文件中可以设置相关端点的敏感值，比如说：endpoints.env.sensitive=false

　　3) 关于保护敏感端点，首先我们要添加对spring-security的依赖，并设置进行安全验证的用户名，密码以及角色，如果不使用spring-security就要慎重考虑暴露端口的端点了

security.user.name=xxxx
security.user.password=xxxx
management.security.role=xxxx

时间： 2024-07-30 02:19:05

SpringBoot学习(四)-->SpringBoot快速入门,开山篇