页面示例
引入对应pom依赖
XML
<!-- 系统信息相关 -->
<dependency>
<groupId>com.github.oshi</groupId>
<artifactId>oshi-core</artifactId>
<version>6.4.0</version>
</dependency>代码示例
java
/**
* 获取cpu信息
*/
public static double getCpuInfo() throws InterruptedException
{
SystemInfo systemInfo = new SystemInfo();
CentralProcessor processor = systemInfo.getHardware().getProcessor();
long[] prevTicks = processor.getSystemCpuLoadTicks();
// 睡眠1s
TimeUnit.SECONDS.sleep(1);
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;
return 1.0 - (idle * 1.0 / totalCpu);
}
/**
* 获取内存使用率
*/
public static double getMemInfo()
{
SystemInfo systemInfo = new SystemInfo();
GlobalMemory memory = systemInfo.getHardware().getMemory();
//总内存
long totalByte = memory.getTotal();
//剩余
long acaliableByte = memory.getAvailable();
return (totalByte - acaliableByte) * 1.0 / totalByte;
}
/**
* 获取网络上传和下载
*/
public static Map<String, Double> getNetworkInterfaces()
{
SystemInfo si = new SystemInfo();
HardwareAbstractionLayer hal = si.getHardware();
List<NetworkIF> beforeRecvNetworkIFs = hal.getNetworkIFs();
NetworkIF beforeBet = beforeRecvNetworkIFs.get(beforeRecvNetworkIFs.size() - 1);
long beforeRecv = beforeBet.getBytesRecv();
long beforeSend = beforeBet.getBytesSent();
try
{
Thread.sleep(1000);
} catch (InterruptedException e)
{
logger.error("[线程休眠失败] : {}", e.getMessage());
}
List<NetworkIF> afterNetworkIFs = hal.getNetworkIFs();
NetworkIF afterNet = afterNetworkIFs.get(afterNetworkIFs.size() - 1);
HashMap<String, Double> map = new HashMap<>();
// 速度单位: Mbps
map.put("in", formatUnits(afterNet.getBytesRecv() - beforeRecv, 1048576L));
map.put("out", formatUnits(afterNet.getBytesSent() - beforeSend, 1048576L));
return map;
}
/**
* 获取带宽总值
*/
public static long getNetworkTotal()
{
SystemInfo si = new SystemInfo();
HardwareAbstractionLayer hal = si.getHardware();
List<NetworkIF> recvNetworkIFs = hal.getNetworkIFs();
NetworkIF networkIF = recvNetworkIFs.get(recvNetworkIFs.size() - 1);
return networkIF.getSpeed() / 1048576L / 8L;
}
public static double formatUnits(long value, long prefix)
{
return (double) value / (double) prefix;
}
/**
* 获取进程数
*/
public static int getProcessesCount()
{
SystemInfo si = new SystemInfo();
OperatingSystem os = si.getOperatingSystem();
return os.getProcessCount();
}
public static List<Map<String, Object>> getDiskInfo()
{
List<Map<String, Object>> result = new ArrayList<>();
String osName = System.getProperty("os.name");
List<String> pathArray = new ArrayList<>();
if (osName.startsWith("Mac OS"))
{
// 苹果
pathArray.add("/");
} else if (osName.startsWith("Windows"))
{
// windows
pathArray.add("C:");
} else
{
pathArray.add("/");
pathArray.add("/home");
}
for (String path : pathArray)
{
Map<String, Object> infoMap = new HashMap<>();
infoMap.put("path", path);
File partitionFile = new File(path);
// 单位： GB
infoMap.put("use", (partitionFile.getTotalSpace() - partitionFile.getFreeSpace()) / 1024 / 1024 / 1024D);
infoMap.put("free", partitionFile.getFreeSpace() / 1024 / 1024 / 1024D);
result.add(infoMap);
}
return result;
}使用定时任务，去获取实时的系统信息
java
@Scheduled(fixedRate = 2000) //每1秒执行一次
public void execute()
{
try
{
double cpuInfo = SystemInfoUtils.getCpuInfo();
redisCatchStorage.addCpuInfo(cpuInfo);
double memInfo = SystemInfoUtils.getMemInfo();
redisCatchStorage.addMemInfo(memInfo);
Map<String, Double> networkInterfaces = SystemInfoUtils.getNetworkInterfaces();
redisCatchStorage.addNetInfo(networkInterfaces);
List<Map<String, Object>> diskInfo = SystemInfoUtils.getDiskInfo();
redisCatchStorage.addDiskInfo(diskInfo);
} catch (InterruptedException e)
{
logger.error("[获取系统信息失败] {}", e.getMessage());
}
}获取进行页面展示
java
@Override
public SystemAllInfo getSystemInfo()
{
String cpuKey = GlobalConfig.SYSTEM_INFO_CPU_PREFIX;
String memKey = GlobalConfig.SYSTEM_INFO_MEM_PREFIX;
String netKey = GlobalConfig.SYSTEM_INFO_NET_PREFIX;
String diskKey = GlobalConfig.SYSTEM_INFO_DISK_PREFIX;
String npuKey = GlobalConfig.SYSTEM_INFO_NPU_PREFIX;
SystemAllInfo systemAllInfo = new SystemAllInfo();
systemAllInfo.setCpu(redisTemplate.opsForList().range(cpuKey, 0, -1));
systemAllInfo.setMem(redisTemplate.opsForList().range(memKey, 0, -1));
systemAllInfo.setNet(redisTemplate.opsForList().range(netKey, 0, -1));
systemAllInfo.setDisk(redisTemplate.opsForValue().get(diskKey));
systemAllInfo.setNetTotal(SystemInfoUtils.getNetworkTotal());
return systemAllInfo;
}