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import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import java.lang.invoke.MethodHandles;/*** 机器工具类*/
public abstract class ServerU…
大体思路如下想要获取启动时处理器数量、jvm 相关信息操作系统信息、运行机器信息 运行机器信息
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import java.lang.invoke.MethodHandles;/*** 机器工具类*/
public abstract class ServerUtils {private static final Logger logger LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());/*** 获取可用处理器数量** return*/public static int getAvailableProcessors() {return Runtime.getRuntime().availableProcessors();}public static void printAvailableProcessors() {logger.info(processors{}, Runtime.getRuntime().availableProcessors());}
}系统信息
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import java.lang.invoke.MethodHandles;/*** 系统信息工具类** author Rike* date 2023/6/28*/
public abstract class SystemUtils {private static final Logger logger LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());public static String getOsName() {return System.getProperty(os.name);}public static void printOsName() {logger.info(os.name{}, System.getProperty(os.name));}public static boolean isWindows() {return getOsName().startsWith(Windows);}public static boolean isLinux() {return getOsName().startsWith(Linux);}public static boolean isWindows(String osName) {return osName.startsWith(Windows);}public static boolean isLinux(String osName) {return osName.startsWith(Linux);}
}通过 System.getProperty() 实现。 jvm 信息
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import java.lang.invoke.MethodHandles;
import java.lang.management.ManagementFactory;
import java.lang.management.RuntimeMXBean;/*** jvm 信息工具类*/
public abstract class JvmUtils {private static final Logger logger LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());/*** 打印 jvm 信息*/public static void printJvmInfo() {RuntimeMXBean runtimeMXBean ManagementFactory.getRuntimeMXBean();logger.info(jvm name{}, runtimeMXBean.getName());logger.info(class{}, runtimeMXBean.getClass());logger.info(java.class.path{}, runtimeMXBean.getClassPath());logger.info(java.library.path{}, runtimeMXBean.getLibraryPath());logger.info(bootClassPath{}, runtimeMXBean.getBootClassPath());logger.info(java.vm.vendor{}, runtimeMXBean.getVmVendor());logger.info(java.vm.name{}, runtimeMXBean.getVmName());logger.info(java.vm.version{}, runtimeMXBean.getVmVersion());logger.info(java.vm.specification.name{}, runtimeMXBean.getSpecName());logger.info(java.vm.specification.vendor{}, runtimeMXBean.getSpecVendor());logger.info(java.vm.specification.version{}, runtimeMXBean.getSpecVersion());logger.info(java.version{}, System.getProperty(java.version));logger.info(java.runtime.version{}, System.getProperty(java.runtime.version));logger.info(java.class.version{}, System.getProperty(java.class.version));logger.info(inputArguments{}, runtimeMXBean.getInputArguments());logger.info(managementSpecVersion{}, runtimeMXBean.getManagementSpecVersion());logger.info(startTime{}, runtimeMXBean.getStartTime());logger.info(uptime{}, runtimeMXBean.getUptime());/*logger.info();runtimeMXBean.getSystemProperties().entrySet().parallelStream().forEach(entry - {System.out.println(entry.getKey() entry.getValue());});logger.info();*/}
}通过 ManagementFactory 获取 RuntimeMXBean 对象获取相关信息。 spring 环境信息
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.core.env.EnumerablePropertySource;
import org.springframework.core.env.PropertySource;
import org.springframework.stereotype.Component;import java.lang.invoke.MethodHandles;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;/*** spring Environment 信息获取工具类*/
Component
public class SpringEnvironmentUtils implements ApplicationContextAware {private static final Logger logger LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());private static ConfigurableEnvironment environment null;Overridepublic void setApplicationContext(ApplicationContext applicationContext) throws BeansException {environment (ConfigurableEnvironment) applicationContext.getBean(ConfigurableApplicationContext.ENVIRONMENT_BEAN_NAME);}public static void printPropertyValue(String property) {logger.info([{}]{}, property, environment.getProperty(property));}public static String getPropertyValue(String property) {return environment.getProperty(property);}/*** 打印所有的 Environment 信息*/public static void printAllEnvironmentInfo() {// printSystemEnvironment();// printSystemProperties();printPropertySources();printProfiles();}public static void printSystemEnvironment() {logger.info();logger.info(print system environment begin);logger.info();environment.getSystemEnvironment().entrySet().parallelStream().forEach(entry - {// System.out.println(entry.getKey() entry.getValue());logger.info({}{}, entry.getKey(), entry.getValue());});logger.info();logger.info(print system environment end);logger.info();MapString, String map System.getenv();map.entrySet().stream().forEach(entry - {// System.out.println(entry.getKey() entry.getValue());logger.info({}{}, entry.getKey(), entry.getValue());});}public static void printSystemProperties() {logger.info();logger.info(print system properties begin);logger.info();environment.getSystemProperties().entrySet().parallelStream().forEach(entry - {// System.out.println(entry.getKey() entry.getValue());logger.info({}{}, entry.getKey(), entry.getValue());});logger.info();logger.info(print system properties end);logger.info();}public static void printPropertySources() {logger.info();logger.info(print property sources begin);logger.info();// 筛选继承 EnumerablePropertySource 的类和实现 Map 的类ListPropertySource? list environment.getPropertySources().stream().filter(ps - (ps instanceof EnumerablePropertySource ps.getSource() instanceof Map)).collect(Collectors.toList());list.stream().forEach(ps - {String name ps.getName();logger.info([{}] include property and value begin, name);Map source (Map) ps.getSource();StringBuffer stringBuffer new StringBuffer();int size source.entrySet().size();// 记录当前下标int index -1;for (Object entry : source.entrySet()) {index;Map.Entry temp (Map.Entry) entry;// System.out.println(temp.getKey() temp.getValue());// logger.info({}{}, temp.getKey(), temp.getValue());// 将参数进行拼接方便日志打印stringBuffer.append(temp.getKey()).append().append(temp.getValue());/*** 换行符打印的情况** 总数量大于1** 下标小于总数减1**/if (size 1 index size -1) {stringBuffer.append(\n);}}// 拼接的字符串不为空时打印if (stringBuffer.length() 0) {logger.info({}, stringBuffer);}logger.info([{}] include property and value end, name);});logger.info();logger.info(print property sources end);logger.info();}public static void printProfiles() {logger.info();logger.info(print profiles begin);logger.info();String[] defaultProfiles environment.getDefaultProfiles();logger.info(defaultProfiles{}, defaultProfiles);String[] activeProfiles environment.getActiveProfiles();logger.info(activeProfiles{}, activeProfiles);logger.info();logger.info(print profiles end);logger.info();}
}
借助于 ApplicationContext 获取 ConfigurableEnvironment 对象进而获取 System.getProperty() 和 System.getenv() 相关信息。 整合
import org.springframework.beans.factory.InitializingBean;
import org.springframework.core.Ordered;
import org.springframework.stereotype.Component;/*** 启动信息*/
Component
public class StartInfo implements InitializingBean, Ordered {Overridepublic void afterPropertiesSet() throws Exception {SpringEnvironmentUtils.printPropertyValue(spring.cloud.nacos.server-addr);ServerUtils.printAvailableProcessors();SystemUtils.printOsName();JvmUtils.printJvmInfo();SpringEnvironmentUtils.printAllEnvironmentInfo();}Overridepublic int getOrder() {return LOWEST_PRECEDENCE;}
} 创建一个类实现 InitializingBean 接口添加 Component 注解在 spring ioc 容器启动时执行其中的逻辑对代码无侵入性无需修改其他代码即可实现最终的功能。 参考链接
https://blog.csdn.net/qq742143797/article/details/113553660
