一起来学SpringBoot | 第十四篇：强大的 actuator 服务监控与管理

 <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> 

<build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <executions> <execution> <goals> <goal>build-info</goal> </goals> </execution> </executions> </plugin> </plugins> </build> 

# 描述信息 info.blog-url=http://blog.battcn.com info.author=Levin info.version=@project.version@ # 加载所有的端点/默认只加载了 info / health management.endpoints.web.exposure.include=* management.endpoint.health.show-details=always # 可以关闭制定的端点 management.endpoint.shutdown.enabled=false # 路径映射，将 health 路径映射成 rest_health 那么在访问 health 路径将为404，因为原路径已经变成 rest_health 了，一般情况下不建议使用 # management.endpoints.web.path-mapping.health=rest_health 

{ "blog-url": "http://blog.battcn.com", "author": "Levin", "version": "0.0.1-SNAPSHOT" } 

package com.battcn.health; import org.springframework.boot.actuate.health.Health; import org.springframework.boot.actuate.health.HealthIndicator; import org.springframework.stereotype.Component; /** * <p>自定义健康端点</p> * * @author Levin * @since 2018/5/24 0024 */ @Component("my1") public class MyHealthIndicator implements HealthIndicator { private static final String VERSION = "v1.0.0"; @Override public Health health() { int code = check(); if (code != 0) { Health.down().withDetail("code", code).withDetail("version", VERSION).build(); } return Health.up().withDetail("code", code) .withDetail("version", VERSION).up().build(); } private int check() { return 0; } } 

{ "status": "UP", "details": { "my1": { "status": "UP", "details": { "code": 0, "version": "v1.0.0" } }, "diskSpace": { "status": "UP", "details": { "total": 100944310272, "free": 55071866880, "threshold": 10485760 } } } } 

package com.battcn.health; import org.springframework.boot.actuate.health.AbstractHealthIndicator; import org.springframework.boot.actuate.health.Health; import org.springframework.stereotype.Component; /** * <p>自定义健康端点</p> * <p>功能更加强大一点，DataSourceHealthIndicator / RedisHealthIndicator 都是这种写法</p> * * @author Levin * @since 2018/5/24 0024 */ @Component("my2") public class MyAbstractHealthIndicator extends AbstractHealthIndicator { private static final String VERSION = "v1.0.0"; @Override protected void doHealthCheck(Health.Builder builder) throws Exception { int code = check(); if (code != 0) { builder.down().withDetail("code", code).withDetail("version", VERSION).build(); } builder.withDetail("code", code) .withDetail("version", VERSION).up().build(); } private int check() { return 0; } } 

{ "status": "UP", "details": { "my2": { "status": "UP", "details": { "code": 0, "version": "v1.0.0" } }, "my1": {...}, "diskSpace": {...} } } 

package com.battcn.endpoint; import org.springframework.boot.actuate.endpoint.annotation.Endpoint; import org.springframework.boot.actuate.endpoint.annotation.ReadOperation; import java.util.HashMap; import java.util.Map; /** * <p>@Endpoint 是构建 rest 的唯一路径 </p> * 不同请求的操作，调用时缺少必需参数，或者使用无法转换为所需类型的参数，则不会调用操作方法，响应状态将为400（错误请求） * <P>@ReadOperation = GET 响应状态为 200 如果没有返回值响应 404（资源未找到） </P> * <P>@WriteOperation = POST 响应状态为 200 如果没有返回值响应 204（无响应内容） </P> * <P>@DeleteOperation = DELETE 响应状态为 200 如果没有返回值响应 204（无响应内容） </P> * * @author Levin * @since 2018/5/24 0024 */ @Endpoint(id = "battcn") public class MyEndPoint { @ReadOperation public Map<String, String> hello() { Map<String, String> result = new HashMap<>(); result.put("author", "Levin"); result.put("age", "24"); result.put("email", "1837307557@qq.com"); return result; } } 

package com.battcn; import com.battcn.endpoint.MyEndPoint; import org.springframework.boot.SpringApplication; import org.springframework.boot.actuate.autoconfigure.endpoint.condition.ConditionalOnEnabledEndpoint; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; /** * @author Levin */ @SpringBootApplication public class Chapter13Application { public static void main(String[] args) { SpringApplication.run(Chapter13Application.class, args); } @Configuration static class MyEndpointConfiguration { @Bean @ConditionalOnMissingBean @ConditionalOnEnabledEndpoint public MyEndPoint myEndPoint() { return new MyEndPoint(); } } } 

{ "author": "Levin", "age": "24", "email": "1837307557@qq.com" }