你先CMD, 再执行tasklist 可以看到类似任务咐纯管理器里的进升猛程信息
2、JAVA要调用CMD命令衡笑咐, 用 Process process = Runtime.getRuntime().exec(command)
例如：查找某进程
Process proc = Runtime.getRuntime().exec("tasklist /FI \"IMAGENAME eq " + processName + "\"")
bufferedReader = new BufferedReader(new InputStreamReader(proc.getInputStream()))
String line = null
while ((line = bufferedReader.readLine()) != null) {
if (line.contains("QQ.exe")) {
System.out.printlns("找到了")
}
}
方法如下：首先
创建一个Bean用来存贮要得到的信
public class MonitorInfoBean {
/** 可使用内存. */
private long totalMemory
/** 剩余内存. */
private long freeMemory
/** 最大可使用内存. */
private long maxMemory
/** *** 作系统. */
private String osName
/** 总的物理内存. */
private long totalMemorySize
/** 剩余的物理内存. */
private long freePhysicalMemorySize
/** 已使用的物理内存. */
private long usedMemory
/** 线程总数. */
private int totalThread
/** cpu使用销侍率. */
private double cpuRatio
public long getFreeMemory() {
return freeMemory
}
public void setFreeMemory(long freeMemory) {
this.freeMemory = freeMemory
}
public long getFreePhysicalMemorySize() {
return freePhysicalMemorySize
}
public void setFreePhysicalMemorySize(long freePhysicalMemorySize) {
this.freePhysicalMemorySize = freePhysicalMemorySize
}
public long getMaxMemory() {
return maxMemory
}
public void setMaxMemory(long maxMemory) {
this.maxMemory = maxMemory
}
public String getOsName() {
return osName
}
public void setOsName(String osName) {
this.osName = osName
}
public long getTotalMemory() {
return totalMemory
}
public void setTotalMemory(long totalMemory) {
this.totalMemory = totalMemory
}
public long getTotalMemorySize() {
return totalMemorySize
}
public void setTotalMemorySize(long totalMemorySize) {
this.totalMemorySize = totalMemorySize
}
public int getTotalThread() {
return totalThread
}
public void setTotalThread(int totalThread) {
this.totalThread = totalThread
}
public long getUsedMemory() {
return usedMemory
}
public void setUsedMemory(long usedMemory) {
this.usedMemory = usedMemory
}
public double getCpuRatio() {
return cpuRatio
}
public void setCpuRatio(double cpuRatio) {
this.cpuRatio = cpuRatio
}
}
之后，建立bean的世丛接口
public interface IMonitorService {
public MonitorInfoBean getMonitorInfoBean() throws Exception
}
然后，就是最关键的，得到cpu的利用率，已用内存，可用内存，搜斗樱最大内存等信息。
import java.io.InputStreamReader
import java.io.LineNumberReader
import sun.management.ManagementFactory
import com.sun.management.OperatingSystemMXBean
import java.io.*
import java.util.StringTokenizer
/**
* 获取系统信息的业务逻辑实现类.
* @author GuoHuang
*/
public class MonitorServiceImpl implements IMonitorService {
private static final int CPUTIME = 30
private static final int PERCENT = 100
private static final int FAULTLENGTH = 10
private static final File versionFile = new File("/proc/version")
private static String linuxVersion = null
/**
* 获得当前的监控对象.
* @return 返回构造好的监控对象
* @throws Exception
* @author GuoHuang
*/
public MonitorInfoBean getMonitorInfoBean() throws Exception {
int kb = 1024
// 可使用内存
long totalMemory = Runtime.getRuntime().totalMemory() / kb
// 剩余内存
long freeMemory = Runtime.getRuntime().freeMemory() / kb
// 最大可使用内存
long maxMemory = Runtime.getRuntime().maxMemory() / kb
OperatingSystemMXBean osmxb = (OperatingSystemMXBean) ManagementFactory
.getOperatingSystemMXBean()
// *** 作系统
String osName = System.getProperty("os.name")
// 总的物理内存
long totalMemorySize = osmxb.getTotalPhysicalMemorySize() / kb
// 剩余的物理内存
long freePhysicalMemorySize = osmxb.getFreePhysicalMemorySize() / kb
// 已使用的物理内存
long usedMemory = (osmxb.getTotalPhysicalMemorySize() - osmxb
.getFreePhysicalMemorySize())
/ kb
// 获得线程总数
ThreadGroup parentThread
for (parentThread = Thread.currentThread().getThreadGroup()parentThread
.getParent() != nullparentThread = parentThread.getParent())
int totalThread = parentThread.activeCount()
double cpuRatio = 0
if (osName.toLowerCase().startsWith("windows")) {
cpuRatio = this.getCpuRatioForWindows()
}
else {
cpuRatio = this.getCpuRateForLinux()
}
// 构造返回对象
MonitorInfoBean infoBean = new MonitorInfoBean()
infoBean.setFreeMemory(freeMemory)
infoBean.setFreePhysicalMemorySize(freePhysicalMemorySize)
infoBean.setMaxMemory(maxMemory)
infoBean.setOsName(osName)
infoBean.setTotalMemory(totalMemory)
infoBean.setTotalMemorySize(totalMemorySize)
infoBean.setTotalThread(totalThread)
infoBean.setUsedMemory(usedMemory)
infoBean.setCpuRatio(cpuRatio)
return infoBean
}
private static double getCpuRateForLinux(){
InputStream is = null
InputStreamReader isr = null
BufferedReader brStat = null
StringTokenizer tokenStat = null
try{
System.out.println("Get usage rate of CUP , linux version: "+linuxVersion)
Process process = Runtime.getRuntime().exec("top -b -n 1")
is = process.getInputStream()
isr = new InputStreamReader(is)
brStat = new BufferedReader(isr)
if(linuxVersion.equals("2.4")){
brStat.readLine()
brStat.readLine()
brStat.readLine()
brStat.readLine()
tokenStat = new StringTokenizer(brStat.readLine())
tokenStat.nextToken()
tokenStat.nextToken()
String user = tokenStat.nextToken()
tokenStat.nextToken()
String system = tokenStat.nextToken()
tokenStat.nextToken()
String nice = tokenStat.nextToken()
System.out.println(user+" , "+system+" , "+nice)
user = user.substring(0,user.indexOf("%"))
system = system.substring(0,system.indexOf("%"))
nice = nice.substring(0,nice.indexOf("%"))
float userUsage = new Float(user).floatValue()
float systemUsage = new Float(system).floatValue()
float niceUsage = new Float(nice).floatValue()
return (userUsage+systemUsage+niceUsage)/100
}else{
brStat.readLine()
brStat.readLine()
tokenStat = new StringTokenizer(brStat.readLine())
tokenStat.nextToken()
tokenStat.nextToken()
tokenStat.nextToken()
tokenStat.nextToken()
tokenStat.nextToken()
tokenStat.nextToken()
tokenStat.nextToken()
String cpuUsage = tokenStat.nextToken()
System.out.println("CPU idle : "+cpuUsage)
Float usage = new Float(cpuUsage.substring(0,cpuUsage.indexOf("%")))
return (1-usage.floatValue()/100)
}
} catch(IOException ioe){
System.out.println(ioe.getMessage())
freeResource(is, isr, brStat)
return 1
} finally{
freeResource(is, isr, brStat)
}
}
你圈的这些是快捷方式的名字啦，这个名字可以随便改，快捷方式的名字跟运拦中迟行的程序一点关系也没有的。
在当前运行的程序的代码中获取其程序名，可以使用 GetModuleFileName函简李培悄数获取到它的EXE名字。
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