J2SE5.0新特征之ProcessBuilder
發(fā)表時間:2024-01-10 來源:明輝站整理相關(guān)軟件相關(guān)文章人氣:
[摘要]這個例子使用了J2SE5.0的ProcessBuilder類執(zhí)行外部的程序,相對于 Runtime.exec ,它更方便,可以設(shè)置環(huán)境變量等。這里使用它在windows下讀取物理網(wǎng)卡的地址 package com.kuaff.jdk5package; import java.io.IOEx...
這個例子使用了J2SE5.0的ProcessBuilder類執(zhí)行外部的程序,相對于 Runtime.exec ,它更方便,可以設(shè)置環(huán)境變量等。這里使用它在windows下讀取物理網(wǎng)卡的地址
package com.kuaff.jdk5package;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
public class ProcessBuilderShow
{
public static List
getPhysicalAddress()
{
Process p = null;
//物理網(wǎng)卡列表
List address = new ArrayList();
try
{
//執(zhí)行ipconfig /all命令
p = new ProcessBuilder("ipconfig", "/all").start();
}
catch (IOException e)
{
return address;
}
byte[] b = new byte[1024];
StringBuffer sb = new StringBuffer();
//讀取進(jìn)程輸出值
InputStream in = p.getInputStream();
try
{
while (in.read(b)>0)
{
sb.append(new String(b));
}
}
catch (IOException e1)
{
}
finally
{
try
{
in.close();
}
catch (IOException e2)
{
}
}
//以下分析輸出值,得到物理網(wǎng)卡
String rtValue = sb.substring(0);
int i = rtValue.indexOf("Physical Address. . . . . . . . . :");
while(i>0)
{
rtValue = rtValue.substring(i + "Physical Address. . . . . . . . . :".length());
address.add(rtValue.substring(0,18));
i = rtValue.indexOf("Physical Address. . . . . . . . . :");
}
return address;
}
public static void main(String[] args)
{
List address = ProcessBuilderShow.getPhysicalAddress();
for(String add:address)
{
System.out.printf("物理網(wǎng)卡地址:%s%n", add);
}
}
}