First, introduce the sigar package
implementation 'org.fusesource:sigar:1.6.4'
Secondly,
Under windows environment, put the three files of sign-amd64-winnt.dll, sign-x86-winnt.dll and sign-x86-winnt.lib in the bin directory of jdk
Or configuration under Windows: select sign-amd64-winnt.dll or sign-x86-winnt.dll to copy to C:\Windows\System32 according to your own operating system version
Configuration under Linux: copy the sigar-amd64-linux.so or libsigar-x86-linux.so under the Lib package to the directory / usr/lib64 or / lib64 or / lib or / usr/lib. If it doesn't work, sudohmod 744 is also required to modify the file permission of libsigar-amd64-linux.so
Finally, it's code
import com.boran.demonstration.config.BaseController;
import com.boran.demonstration.config.Result;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.hyperic.sigar.*;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* @Author: zp.wei
* @DATE: 2020/1/19 15:18
*/
@CrossOrigin
@RestController
public class ComputerInformationController {
/**
* View computer information
* 1，Introducing the sigar.jar package
* 2，windows Under the environment, put the three files of sign-amd64-winnt.dll, sign-x86-winnt.dll and sign-x86-winnt.lib into the bin directory of jdk
*
* @return
*/
@ApiOperation("View computer information")
@GetMapping("/information")
public Result ComputerInformation() {
Map<String, Object> all = new HashMap<>();
try {
// Memory information
Map<String, String> memory = getMemory();
all.put("memory", memory);
System.out.println("----------------------------------");
// cpu Information
List<Object> cpu = getCpu();
all.put("cpu", cpu);
System.out.println("----------------------------------");
// file system information
// file();
// System.out.println("----------------------------------");
// network information
// net();
// System.out.println("----------------------------------");
// System information, getting from the jvm
// property();
// System.out.println("----------------------------------");
// Operating system information
// os();
// System.out.println("----------------------------------");
// User information
// who();
// System.out.println("----------------------------------");
// Ethernet information
// ethernet();
// System.out.println("----------------------------------");
} catch (Exception e1) {
e1.printStackTrace();
}
return Result.ok(all);
}
/**
* Memory
*
* @throws SigarException
*/
private Map<String, String> getMemory() throws SigarException {
Sigar sigar = new Sigar();
Mem mem = sigar.getMem();
Swap swap = sigar.getSwap();
Map<String, String> map = new HashMap<>(16);
map.put("memTotal", mem.getTotal() / 1024L + "K av");
map.put("memUsed", mem.getUsed() / 1024L + "K used");
map.put("memFree", mem.getFree() / 1024L + "K free");
map.put("swapTotal", swap.getTotal() / 1024L + "K av");
map.put("swapUsed", swap.getUsed() / 1024L + "K used");
map.put("swapFree", swap.getFree() / 1024L + "K free");
return map;
}
/**
* cpu
*
* @throws SigarException
*/
private List getCpu() throws SigarException {
Sigar sigar = new Sigar();
CpuInfo infos[] = sigar.getCpuInfoList();
CpuPerc cpuList[] = sigar.getCpuPercList();
List<Object> list = new ArrayList<>();
for (int i = 0; i < infos.length; i++) {// Both single CPU and multi CPU are applicable
CpuInfo info = infos[i];
Map<String, Object> map = new HashMap<>(16);
map.put("number", i + 1);
map.put("getMhz", info.getMhz());
map.put("getVendor", info.getVendor());
map.put("getModel", info.getModel());
map.put("getCacheSize", info.getCacheSize());
map.put("getUser", CpuPerc.format(cpuList[i].getUser()));
map.put("getSys", CpuPerc.format(cpuList[i].getSys()));
map.put("getWait", CpuPerc.format(cpuList[i].getWait()));
map.put("getNice", CpuPerc.format(cpuList[i].getNice()));
map.put("getIdle", CpuPerc.format(cpuList[i].getIdle()));
map.put("getCombined", CpuPerc.format(cpuList[i].getCombined()));
list.add(map);
}
return list;
}
/**
* file system information
*
* @throws Exception
*/
/*private static void file() throws Exception {
Sigar sigar = new Sigar();
FileSystem fslist[] = sigar.getFileSystemList();
for (int i = 0; i < fslist.length; i++) {
System.out.println("The drive letter name of the partition "+ I";
FileSystem fs = fslist[i];
// Drive letter name of the partition
System.out.println("Drive name: '+ fs.getDevName());
// Drive letter name of the partition
System.out.println("Drive path: '+ fs.getDirName());
System.out.println("Drive flag: "+ fs.getFlags())//
// File system type, such as FAT32, NTFS
System.out.println("Drive type: '+ fs.getSysTypeName());
// File system type name, such as local hard disk, optical drive, network file system, etc
System.out.println("Drive type name: '+ fs.getTypeName());
// file system type
System.out.println("Drive letter file system type: '+ fs.getType());
FileSystemUsage usage = null;
usage = sigar.getFileSystemUsage(fs.getDirName());
switch (fs.getType()) {
case 0: // TYPE_UNKNOWN : Unknown
break;
case 1: // TYPE_NONE
break;
case 2: // TYPE_LOCAL_DISK : Local hard disk
// Total file system size
System.out.println(fs.getDevName() + "Total size: "+ usage. Gettotal() +" KB ");
// File system remaining size
System.out.println(fs.getDevName() + "Remaining size: "+ usage. Getfree() +" KB ");
// File system available size
System.out.println(fs.getDevName() + "Available size: "+ usage. Getavail() +" KB ");
// File system used
System.out.println(fs.getDevName() + "Used amount: "+ usage. Getused() +" KB ");
double usePercent = usage.getUsePercent() * 100D;
// Utilization of file system resources
System.out.println(fs.getDevName() + "Resource utilization rate: "+ usePercent +"% ");
break;
case 3:// TYPE_NETWORK : network
break;
case 4:// TYPE_RAM_DISK : Flash Memory
break;
case 5:// TYPE_CDROM : CD drive
break;
case 6:// TYPE_SWAP : Page exchange
break;
}
System.out.println(fs.getDevName() + "Read out: "+ usage.getDiskReads());
System.out.println(fs.getDevName() + "Write: "+ usage.getDiskWrites());
}
return;
}*/
/**
* network information
*
* @throws Exception
*/
/*private static void net() throws Exception {
Sigar sigar = new Sigar();
String ifNames[] = sigar.getNetInterfaceList();
for (int i = 0; i < ifNames.length; i++) {
String name = ifNames[i];
NetInterfaceConfig ifconfig = sigar.getNetInterfaceConfig(name);
if ((ifconfig.getFlags() & 1L) <= 0L) {
System.out.println("!IFF_UP...skipping getNetInterfaceStat");
continue;
}
NetInterfaceStat ifstat = sigar.getNetInterfaceStat(name);
System.out.println(name + "Received packages: "+ ifstat.getRxPackets()); / / received packages
System.out.println(name + "Packages sent: "+ ifstat.getTxPackets()); / / packages sent
System.out.println(name + "Total bytes received: "+ ifstat.getRxBytes()); / / total bytes received
System.out.println(name + "Total bytes sent: '+ ifstat.getTxBytes()); / / total bytes sent
System.out.println(name + "Number of error packets received: '+ ifstat.getRxErrors()); / / number of error packets received
System.out.println(name + "Number of errors in sending packets: '+ ifstat.getTxErrors()); / / number of errors in sending packets
System.out.println(name + "Number of packets dropped on receive: '+ ifstat.getRxDropped()); / / number of packets dropped on receive
System.out.println(name + "Number of packets dropped when sending: "+ ifstat.getTxDropped()); / / number of packets dropped when sending
}
}*/
/**
* System Information, getting from the jvm
*
* @throws UnknownHostException
*/
/*private static void property() throws UnknownHostException {
Runtime r = Runtime.getRuntime();
Properties props = System.getProperties();
InetAddress addr;
addr = InetAddress.getLocalHost();
String ip = addr.getHostAddress();
Map<String, String> map = System.getenv();
String userName = map.get("USERNAME");// Get user name
String computerName = map.get("COMPUTERNAME");// Get computer name
String userDomain = map.get("USERDOMAIN");// Get computer domain name
System.out.println("User name: "+ userName);
System.out.println("Computer name: "+ computerName);
System.out.println("Computer domain name: "+ userdomain";
System.out.println("Local ip address: "+ ip";
System.out.println("Local host name: "+ addr.getHostName());
System.out.println("JVM Total memory available: "+ r.totalMemory());
System.out.println("JVM Remaining memory available: "+ r.freeMemory());
System.out.println("JVM Number of processors available: '+ r.availableProcessors());
System.out.println("Java Running environment version of: "+ props.getProperty("java.version ");
System.out.println("Java Running environment provider of: "+ props.getProperty("java.vendor "));
System.out.println("Java Supplier URL: "+ props.getProperty("java.vendor.url ");
System.out.println("Java Installation path of: "+ props.getProperty("java.home ");
System.out.println("Java Virtual machine specification version of: "+ props.getProperty("java.vm.specification.version ");
System.out.println("Java Virtual machine specification vendor for: "+ props.getProperty("java.vm.specification.vendor "));
System.out.println("Java Virtual machine specification name of: "+ props.getProperty("java.vm.specification.name ");
System.out.println("Java Virtual machine implementation version of: "+ props.getProperty("java.vm.version ");
System.out.println("Java "+ props.getProperty("java.vm.vendor ");
System.out.println("Java Virtual machine implementation name of: "+ props.getProperty("java.vm.name "));
System.out.println("Java Runtime environment specification version: "+ props.getProperty("java.specification.version ");
System.out.println("Java Runtime environment specification vendor: "+ props.getProperty("java.specification.vender ");
System.out.println("Java Runtime environment specification Name: "+ props.getProperty("java.specification.name ");
System.out.println("Java Class format version number of: "+ props.getProperty("java.class.version ");
System.out.println("Java Class path of: "+ props.getProperty("java.class.path ");
System.out.println("List of paths to search when loading libraries: "+ props.getProperty("java.library.path "));
System.out.println("Default temporary file path: "+ props.getProperty("java.io.tmpdir ");
System.out.println("The path of one or more extension directories: "+ props.getProperty("java.ext.dirs ");
System.out.println("Name of the operating system: "+ props.getProperty("os.name "));
System.out.println("Architecture of the operating system: "+ props.getProperty("os.arch ");
System.out.println("Version of the operating system: '+ props. Getproperty ('os. Version');
System.out.println("File separator: '+ props. Getproperty ('File. Separator');
System.out.println("Path separator: "+ props.getProperty("path.separator ");
System.out.println("Line separator: "+ props.getProperty("line.separator ");
System.out.println("User's account name: "+ props.getProperty("user.name "));
System.out.println("User's home directory: "+ props.getProperty("user.home ");
System.out.println("Current working directory of the user: "+ props.getProperty("user.dir ");
}*/
/**
* Operating system information
*
* @throws SigarException
*/
/*private static void os() {
OperatingSystem OS = OperatingSystem.getInstance();
// Operating system kernel types such as 386, 486, 586, etc
System.out.println("Operating system: "+ OS.getArch());
System.out.println("Operating system cpuendian(): "+ OS. Getcpuendian())//
System.out.println("Operating system datamodel(): "+ OS. Getdatamodel())//
// System description
System.out.println("Description of the operating system: "+ OS.getDescription());
// Operating system type
// System.out.println("OS.getName(): " + OS.getName());
// System.out.println("OS.getPatchLevel(): " + OS.getPatchLevel());//
// Vendor of operating system
System.out.println("Vendor of operating system: "+ OS.getVendor());
// Seller name
System.out.println("The vendor name of the operating system: "+ OS.getVendorCodeName());
// Operating system name
System.out.println("Operating system name: "+ OS.getVendorName());
// Operating system vendor type
System.out.println("Operating system vendor type: "+ OS.getVendorVersion());
// Version number of the operating system
System.out.println("Version number of the operating system: "+ OS.getVersion());
}*/
/**
* User information
*
* @throws SigarException
*/
/*private static void who() throws SigarException {
Sigar sigar = new Sigar();
Who who[] = sigar.getWhoList();
if (who != null && who.length > 0) {
for (int i = 0; i < who.length; i++) {
// System.out.println("User name in the current system process table "+ String.valueOf(i));
Who _who = who[i];
System.out.println("User console: "+ _who.getDevice());
System.out.println("User host: "+ _who. Gethost());
// System.out.println("getTime(): " + _who.getTime());
// User name in the current system process table
System.out.println("User name in the current system process table: "+ _who.getUser());
}
}
}*/
/**
* Ethernet information
*
* @throws SigarException
*/
/*private static void ethernet() throws SigarException {
Sigar sigar = null;
sigar = new Sigar();
String[] ifaces = sigar.getNetInterfaceList();
for (int i = 0; i < ifaces.length; i++) {
NetInterfaceConfig cfg = sigar.getNetInterfaceConfig(ifaces[i]);
if (NetFlags.LOOPBACK_ADDRESS.equals(cfg.getAddress()) || (cfg.getFlags() & NetFlags.IFF_LOOPBACK) != 0
|| NetFlags.NULL_HWADDR.equals(cfg.getHwaddr())) {
continue;
}
System.out.println(cfg.getName() + "IP Address: "+ cfg.getAddress());// IP address
System.out.println(cfg.getName() + "Gateway broadcast address: "+ cfg.getBroadcast()); / / gateway broadcast address
System.out.println(cfg.getName() + "MAC address of network card: "+ cfg.getHwaddr()); / / MAC address of network card
System.out.println(cfg.getName() + "Subnet mask: '+ cfg.getNetmask()); / / subnet mask
System.out.println(cfg.getName() + "Network card description information: "+ cfg.getDescription()); / / network card description information
System.out.println(cfg.getName() + "Network card type "+ cfg.getType())//
}
}*/
}Finally, basically all the server information you want is available... The above code hasn't been written, which is not a big problem. It can still be used
