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blog名称: 日志总数:1304 评论数量:2242 留言数量:5 访问次数:7662853 建立时间:2006年5月29日 |

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[J2SE]J2SE5.0新特性之ProcessBuilder 软件技术
lhwork 发表于 2006/7/14 16:44:39 |
| 这个例子使用了J2SE5.0的ProcessBuilder类执行外部的程序,相对于 Runtime.exec ,它更方便,可以设置环境变量等。这里使用它在windows下读取物理网卡的地址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<String> getPhysicalAddress() { Process p = null; //物理网卡列表 List<String> address = new ArrayList<String>(); try { //执行ipconfig /all命令 p = new ProcessBuilder("ipconfig", "/all").start(); } catch (IOException e) { return address; } byte[] b = new byte[1024]; StringBuffer sb = new StringBuffer(); //读取进程输出值 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) { } } //以下分析输出值,得到物理网卡 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<String> address = ProcessBuilderShow.getPhysicalAddress(); for(String add:address) { System.out.printf("物理网卡地址:%s%n", add); } } } |
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