1.引入jar包
1.1 Springboot2.3.0RELEASE以下版本
以下内容中的<!--$NO-MVN-MAN-VER$-->"不能省略
<!-- 19. 引入oshi依赖 -->
<dependency>
<groupId>com.github.oshi</groupId>
<artifactId>oshi-core</artifactId>
<version>5.3.6</version>
</dependency>
<!-- 20. 引入jna依赖 -->
<dependency>
<groupId>net.java.dev.jna</groupId>
<artifactId>jna</artifactId>
<version>5.6.0</version><!--$NO-MVN-MAN-VER$-->
</dependency>
<!-- 21. 引入jna-platform依赖 -->
<dependency>
<groupId>net.java.dev.jna</groupId>
<artifactId>jna-platform</artifactId>
<version>5.6.0</version><!--$NO-MVN-MAN-VER$-->
</dependency>
1.2 Springboot2.3.0RELEASE及以上版本
<dependency>
<groupId>com.github.oshi</groupId>
<artifactId>oshi-core</artifactId>
<version>5.3.6</version>
</dependency>
2.工具类
import java.io.File;
import java.text.DecimalFormat;
import java.util.List;
import java.util.Properties;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import oshi.SystemInfo;
import oshi.hardware.CentralProcessor;
import oshi.hardware.GlobalMemory;
import oshi.hardware.HardwareAbstractionLayer;
import oshi.software.os.FileSystem;
import oshi.software.os.OSFileStore;
import oshi.software.os.OperatingSystem;
/**
* <h5>描述:获取系统各类信息</h5>
*
*/
public class ToolOSInfo {
/**
* 系统分隔符
*/
private static final String SYSTEM_SEPARATOR = File.separator;
/**
* Unix分隔符
*/
private static final String UNIX_SEPARATOR = "/";
/**
* Windows分隔符字符
*/
private static final String WINDOWS_SEPARATOR = "\\";
public static void main(String[] args) {
cpuInfo();
getJvmInfo();
getMemInfo();
getSysFileInfo();
}
/**
* <h5>功能:获取系统名称信息</h5>
*
* @return
*/
public static String getOSName() {
return System.getProperty("os.name").toLowerCase();
}
/**
* <h5>功能:验证是否Linux系统</h5>
*
* @return
*/
public static boolean isLinux(){
return getOSName().indexOf("linux")>=0;
}
/**
* <h5>功能:验证是否Linux系统</h5>
*
* @return
*/
public static boolean isLinuxExt(){
return SYSTEM_SEPARATOR.equals(UNIX_SEPARATOR);
}
/**
* <h5>功能:验证是否Windows系统</h5>
*
* @return
*/
public static boolean isWindows(){
return getOSName().indexOf("windows")>=0;
}
/**
* <h5>功能:验证是否Windows系统</h5>
*
* @return
*/
public static boolean isWindowsExt(){
return SYSTEM_SEPARATOR.equals(WINDOWS_SEPARATOR);
}
/**
* <h5>功能:获取系统CPU信息</h5>
*
*/
public static void cpuInfo() {
JSONObject cpuInfo = new JSONObject();
SystemInfo systemInfo = new SystemInfo();
// 获取硬件信息
HardwareAbstractionLayer hardware = systemInfo.getHardware();
// 获取处理器信息
CentralProcessor processor = hardware.getProcessor();
// 获取CPU信息
long[] prevTicks = processor.getSystemCpuLoadTicks();
long[] ticks = processor.getSystemCpuLoadTicks();
long nice = ticks[CentralProcessor.TickType.NICE.getIndex()] - prevTicks[CentralProcessor.TickType.NICE.getIndex()];
long irq = ticks[CentralProcessor.TickType.IRQ.getIndex()] - prevTicks[CentralProcessor.TickType.IRQ.getIndex()];
long softirq = ticks[CentralProcessor.TickType.SOFTIRQ.getIndex()] - prevTicks[CentralProcessor.TickType.SOFTIRQ.getIndex()];
long steal = ticks[CentralProcessor.TickType.STEAL.getIndex()] - prevTicks[CentralProcessor.TickType.STEAL.getIndex()];
long cSys = ticks[CentralProcessor.TickType.SYSTEM.getIndex()] - prevTicks[CentralProcessor.TickType.SYSTEM.getIndex()];
long user = ticks[CentralProcessor.TickType.USER.getIndex()] - prevTicks[CentralProcessor.TickType.USER.getIndex()];
long iowait = ticks[CentralProcessor.TickType.IOWAIT.getIndex()] - prevTicks[CentralProcessor.TickType.IOWAIT.getIndex()];
long idle = ticks[CentralProcessor.TickType.IDLE.getIndex()] - prevTicks[CentralProcessor.TickType.IDLE.getIndex()];
long totalCpu = user + nice + cSys + idle + iowait + irq + softirq + steal;
//cpu核数
cpuInfo.put("cpuNum-核数", processor.getLogicalProcessorCount());
//cpu系统使用率
cpuInfo.put("cSys-系统使用率", new DecimalFormat("#.##%").format(cSys * 1.0 / totalCpu));
//cpu用户使用率
cpuInfo.put("user-用户使用率", new DecimalFormat("#.##%").format(user * 1.0 / totalCpu));
//cpu当前等待率
cpuInfo.put("iowait-当前等待率", new DecimalFormat("#.##%").format(iowait * 1.0 / totalCpu));
//cpu当前使用率
cpuInfo.put("idle-当前使用率", new DecimalFormat("#.##%").format(1.0 - (idle * 1.0 / totalCpu)));
System.out.println(cpuInfo.toJSONString());
}
/**
* <h5>功能:获取系统JVM信息</h5>
*
* @return
*/
public static JSONObject getJvmInfo() {
JSONObject jvmInfo = new JSONObject();
Properties props = System.getProperties();
Runtime runtime = Runtime.getRuntime();
long jvmTotalMemoryByte = runtime.totalMemory();
long freeMemoryByte = runtime.freeMemory();
//jvm总内存
jvmInfo.put("total-jvm总内存", formatByte(runtime.totalMemory()));
//空闲空间
jvmInfo.put("free-空闲空间", formatByte(runtime.freeMemory()));
//jvm最大可申请
jvmInfo.put("max-jvm最大可申请", formatByte(runtime.maxMemory()));
//vm已使用内存
jvmInfo.put("user-vm已使用内存", formatByte(jvmTotalMemoryByte - freeMemoryByte));
//jvm内存使用率
jvmInfo.put("usageRate-jvm内存使用率", new DecimalFormat("#.##%").format((jvmTotalMemoryByte - freeMemoryByte) * 1.0 / jvmTotalMemoryByte));
//jdk版本
jvmInfo.put("jdkVersion-jdk版本", props.getProperty("java.version"));
//jdk路径
jvmInfo.put("jdkHome-jdk路径", props.getProperty("java.home"));
System.out.println(jvmInfo.toJSONString());
return jvmInfo;
}
/**
* <h5>功能:获取系统内存信息</h5>
*
* @return
*/
public static JSONObject getMemInfo() {
JSONObject memInfo = new JSONObject();
SystemInfo systemInfo = new SystemInfo();
GlobalMemory memory = systemInfo.getHardware().getMemory();
//总内存
long totalByte = memory.getTotal();
//剩余
long acaliableByte = memory.getAvailable();
//总内存
memInfo.put("total-总内存", formatByte(totalByte));
//已用内存
memInfo.put("used-已用内存", formatByte(totalByte - acaliableByte));
//剩余内存
memInfo.put("free-剩余内存", formatByte(acaliableByte));
//使用率
memInfo.put("usageRate-使用率", new DecimalFormat("#.##%").format((totalByte - acaliableByte) * 1.0 / totalByte));
System.out.println(memInfo.toJSONString());
return memInfo;
}
/**
* <h5>功能:获取系统盘符信息</h5>
*
* @return
*/
public static JSONArray getSysFileInfo() {
JSONObject sysFileInfo;
JSONArray sysFiles = new JSONArray();
SystemInfo systemInfo = new SystemInfo();
OperatingSystem operatingSystem = systemInfo.getOperatingSystem();
FileSystem fileSystem = operatingSystem.getFileSystem();
List<OSFileStore> fsArray = fileSystem.getFileStores();
for (OSFileStore fs : fsArray) {
sysFileInfo = new JSONObject();
//盘符路径
sysFileInfo.put("dirName-盘符路径", fs.getMount());
//总大小
sysFileInfo.put("total-总大小", formatByte(fs.getTotalSpace()));
//剩余大小
sysFileInfo.put("free-剩余大小", formatByte(fs.getUsableSpace()));
//已经使用量
sysFileInfo.put("used-已经使用量", formatByte(fs.getTotalSpace() - fs.getUsableSpace()));
//盘符类型
sysFileInfo.put("sysTypeName-盘符类型", fs.getType());
//文件类型
sysFileInfo.put("typeName-文件类型", fs.getName());
if (fs.getTotalSpace() == 0) {
//资源的使用率
sysFileInfo.put("usage-资源的使用率", 0);
} else {
sysFileInfo.put("usage-资源的使用率",new DecimalFormat("#.##%").format((fs.getTotalSpace() - fs.getUsableSpace()) * 1.0 / fs.getTotalSpace()));
}
sysFiles.add(sysFileInfo);
System.out.println(sysFileInfo.toJSONString());
}
return sysFiles;
}
// =================== private method ===================
/**
* 单位转换
*/
private static String formatByte(long byteNumber) {
//换算单位
double FORMAT = 1024.0;
double kbNumber = byteNumber / FORMAT;
if (kbNumber < FORMAT) {
return new DecimalFormat("#.##KB").format(kbNumber);
}
double mbNumber = kbNumber / FORMAT;
if (mbNumber < FORMAT) {
return new DecimalFormat("#.##MB").format(mbNumber);
}
double gbNumber = mbNumber / FORMAT;
if (gbNumber < FORMAT) {
return new DecimalFormat("#.##GB").format(gbNumber);
}
double tbNumber = gbNumber / FORMAT;
return new DecimalFormat("#.##TB").format(tbNumber);
}
}
如图: 