Vincent
          

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				數(shù)據(jù)加載中……
			
          
		          		
		
			
          
				
					
	
          
		
          
			J2SE5.0新特性之ProcessBuilder
		
          
		
          
		
		
				這個(gè)例子使用了J2SE5.0的ProcessBuilder類執(zhí)行外部的程序，相對(duì)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

          2. package?com.kuaff.jdk5package; 


          4. import?java.io.IOException; 

          5. import?java.io.InputStream; 

          6. import?java.util.ArrayList; 

          7. import?java.util.List; 


          9. public?class?ProcessBuilderShow 

          10. { 

          11. ????public?static?List<String>?getPhysicalAddress() 

          12. ????{ 

          13. ????????Process?p?=?null; 

          14. ????????//物理網(wǎng)卡列表
          15. ????????List<String>?address?=?new?ArrayList<String>(); 


          17. ????????try
          18. ????????{ 

          19. ????????????//執(zhí)行ipconfig?/all命令
          20. ????????????p?=?new?ProcessBuilder("ipconfig",?"/all").start(); 

          21. ???????? } 

          22. ????????catch?(IOException?e) 

          23. ????????{ 

          24. ????????????return??address; 

          25. ???????? } 

          26. ????????byte[]?b?=?new?byte[1024]; 

          27. ????????StringBuffer?sb?=?new?StringBuffer(); 

          28. ????????//讀取進(jìn)程輸出值
          29. ????????InputStream?in?=?p.getInputStream(); 

          30. ????????try
          31. ????????{ 

          32. ????????????while?(in.read(b)>0) 

          33. ????????????{ 

          34. ????????????????sb.append(new?String(b)); 

          35. ???????????? } 

          36. ???????? } 

          37. ????????catch?(IOException?e1) 

          38. ????????{ 

          39. ???????? } 

          40. ????????finally
          41. ????????{ 

          42. ????????????try
          43. ????????????{ 

          44. ????????????????in.close(); 

          45. ???????????? } 

          46. ????????????catch?(IOException?e2) 

          47. ????????????{ 

          48. ???????????? } 

          49. ???????? } 

          50. ????????//以下分析輸出值，得到物理網(wǎng)卡
          51. ????????String?rtValue?=?sb.substring(0); 

          52. ????????int?i?=?rtValue.indexOf("Physical?Address.?.?.?.?.?.?.?.?.?:"); 

          53. ????????while(i>0) 

          54. ????????{ 

          55. ????????????rtValue?=?rtValue.substring(i?+?"Physical?Address.?.?.?.?.?.?.?.?.?:".length()); 

          56. ????????????address.add(rtValue.substring(0,18)); 

          57. ????????????i?=?rtValue.indexOf("Physical?Address.?.?.?.?.?.?.?.?.?:"); 

          58. ???????? } 

          59. ???????? 

          60. ????????return?address; 

          61. ???????? 

          62. ???? } 

          63. ????public?static?void?main(String[]?args) 

          64. ????{ 

          65. ????????List<String>?address?=?ProcessBuilderShow.getPhysicalAddress(); 

          66. ????????for(String?add:address) 

          67. ????????{ 

          68. ????????????System.out.printf("物理網(wǎng)卡地址:%s%n",?add); 

          69. ???????? } 

          70. ???? } 

          71. } 
          
		

		
          
		
          
			posted on 2006-08-22 10:45 Binary 閱讀(125) 評(píng)論(0)  編輯  收藏  所屬分類: j2se 
		
          
	
          
	
	


	


          
	    
    




          








          

				
			
          
		          		
	
          
	
          
		
			

		
	
          

          


    







          
        
	




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