java 获取系统参数

本文全部转载自: http://www.cnblogs.com/wuhenke/archive/2011/11/19/2255400.html

获取JRE系统相关参数

 java 通过System.getProperties()获取系统参数

  Properties props=System.getProperties(); //系统属性

// Set<Object> keySet = sysProperty.keySet();
// for (Object object : keySet) {
// String property = sysProperty.getProperty(object.toString());
// System.out.println(object.toString()+" : "+property);
// }
System.out.println("Java的运行环境版本："+props.getProperty("java.version"));
System.out.println("Java的运行环境供应商："+props.getProperty("java.vendor"));
System.out.println("Java供应商的URL："+props.getProperty("java.vendor.url"));
System.out.println("Java的安装路径："+props.getProperty("java.home"));
System.out.println("Java的虚拟机规范版本："+props.getProperty("java.vm.specification.version"));
System.out.println("Java的虚拟机规范供应商："+props.getProperty("java.vm.specification.vendor"));
System.out.println("Java的虚拟机规范名称："+props.getProperty("java.vm.specification.name"));
System.out.println("Java的虚拟机实现版本："+props.getProperty("java.vm.version"));
System.out.println("Java的虚拟机实现供应商："+props.getProperty("java.vm.vendor"));
System.out.println("Java的虚拟机实现名称："+props.getProperty("java.vm.name"));
System.out.println("Java运行时环境规范版本："+props.getProperty("java.specification.version"));
System.out.println("Java运行时环境规范供应商："+props.getProperty("java.specification.vender"));
System.out.println("Java运行时环境规范名称："+props.getProperty("java.specification.name"));
System.out.println("Java的类格式版本号："+props.getProperty("java.class.version"));
System.out.println("Java的类路径："+props.getProperty("java.class.path"));
System.out.println("加载库时搜索的路径列表："+props.getProperty("java.library.path"));
System.out.println("默认的临时文件路径："+props.getProperty("java.io.tmpdir"));
System.out.println("一个或多个扩展目录的路径："+props.getProperty("java.ext.dirs"));
System.out.println("操作系统的名称："+props.getProperty("os.name"));
System.out.println("操作系统的构架："+props.getProperty("os.arch"));
System.out.println("操作系统的版本："+props.getProperty("os.version"));
System.out.println("文件分隔符："+props.getProperty("file.separator")); //在 unix 系统中是＂／＂
System.out.println("路径分隔符："+props.getProperty("path.separator")); //在 unix 系统中是＂:＂
System.out.println("行分隔符："+props.getProperty("line.separator")); //在 unix 系统中是＂/n＂
System.out.println("用户的账户名称："+props.getProperty("user.name"));
System.out.println("用户的主目录："+props.getProperty("user.home"));
System.out.println("用户的当前工作目录："+props.getProperty("user.dir"));

二、获取系统环境变量

　　Map<String, String> getenv = System.getenv();

 

三、获取IP、 计算机名、MAC、 硬盘卷序号

 

package com.geocompass.geosearch.tools;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.util.Properties;

/**
* 获取当前系统信息
* @author gxsn
*
*/
public class SystemInfo {
//当前实例
private static SystemInfo currentSystem=null;
private  InetAddress localHost=null;

private SystemInfo()
{
try {
localHost = InetAddress.getLocalHost();
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

/**
* 单例模式获取对象
* @return
*/
public static SystemInfo getInstance()
{
if(currentSystem==null)
currentSystem= new SystemInfo();
return currentSystem;
}
/**
* 本地IP
* @return IP地址
*/
public String getIP()
{
String ip=localHost.getHostAddress();
return ip;
}
/**
* 获取用户机器名称
* @return
*/
public String getHostName()
{
return localHost.getHostName();
}

/**
* 获取C盘卷 序列号
* @return
*/
public String getDiskNumber()
{
String line = "";
String HdSerial = "";//记录硬盘序列号

try {

Process proces = Runtime.getRuntime().exec("cmd /c dir c:");//获取命令行参数
BufferedReader buffreader = new BufferedReader(
new InputStreamReader(proces.getInputStream()));

while ((line = buffreader.readLine()) != null) {

if (line.indexOf("卷的序列号是 ") != -1) {  //读取参数并获取硬盘序列号

HdSerial = line.substring(line.indexOf("卷的序列号是 ")
+ "卷的序列号是 ".length(), line.length());
break;
}
}

} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

return HdSerial;
}

/**
* 获取Mac地址
* @return Mac地址，例如：F0-4D-A2-39-24-A6
*/
public String getMac()
{
NetworkInterface byInetAddress;
try {
byInetAddress = NetworkInterface.getByInetAddress(localHost);
byte[] hardwareAddress = byInetAddress.getHardwareAddress();
return getMacFromBytes(hardwareAddress);
} catch (SocketException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}

/**
* 获取当前系统名称
* @return 当前系统名，例如： windows xp
*/
public String getSystemName()
{
Properties sysProperty = System.getProperties();
//系统名称
String systemName=sysProperty.getProperty("os.name");
return systemName;
}

private  String getMacFromBytes(byte[] bytes)
{
StringBuffer mac=new StringBuffer();
byte currentByte;
boolean first=false;
for (byte b : bytes) {
if(first)
{
mac.append("-");
}
currentByte=(byte)((b&240)>>4);
mac.append(Integer.toHexString(currentByte));
currentByte=(byte)(b&15);
mac.append(Integer.toHexString(currentByte));
first=true;
}
return mac.toString().toUpperCase();
}
}

四、执行系统命令 jar包

Sigar.jar  参见：http://sourceforge.net/projects/sigar/files/

 

五、获取端口号

  public static String getOpenPorts() {

String line = "";
String HdSer
8feb
ial = "";//记录硬盘序列号
StringBuffer buf = new StringBuffer("");
try {

Process proces = Runtime.getRuntime().exec("cmd /c netstat -a");//获取命令行参数
BufferedReader buffreader = new BufferedReader(
new InputStreamReader(proces.getInputStream()));

while ((line = buffreader.readLine()) != null) {
buf.append(line+"\n");
System.out.println(line);
}

} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

return buf.toString();
}

VBS文件获取硬盘系列号

public static String getSerialNumber(String drive) {
String result = "";
try {
File file = File.createTempFile("realhowto",".vbs");
file.deleteOnExit();
FileWriter fw = new java.io.FileWriter(file);
String vbs = "Set objFSO = CreateObject(\"Scripting.FileSystemObject\")\n"
+"Set colDrives = objFSO.Drives\n"
+"Set objDrive = colDrives.item(\"" + drive + "\")\n"
+"Wscript.Echo objDrive.SerialNumber"; // see note
fw.write(vbs);
fw.close();
Process p = Runtime.getRuntime().exec("cscript //NoLogo " + file.getPath());
BufferedReader input =
new BufferedReader
(new InputStreamReader(p.getInputStream()));
String line;
while ((line = input.readLine()) != null) {
result += line;
}
input.close();
}
catch(Exception e){
e.printStackTrace();
}
return result.trim();
}