JAVA拷贝

Java代码

1. /*
2. *Tochangethistemplate,chooseTools|Templates
3. *andopenthetemplateintheeditor.
4. */
6. packagecn.lsd;
8. importjava.io.File;
9. importjava.io.FileInputStream;
10. importjava.io.FileNotFoundException;
11. importjava.io.FileOutputStream;
12. importjava.io.IOException;
13. importjava.util.logging.Level;
14. importjava.util.logging.Logger;
16. /**
17. *
18. *@date2008-11-26
19. *@authorlsd
20. */
21. publicclassCpp{
22. privateStringsourceFile;
23. privateStringdestFile;
25. publicCpp(StringsourceFile,StringdestFile){
26. this.sourceFile=sourceFile;
27. this.destFile=destFile;
28. doCopy();
29. }
31. privatevoiddoCopy(){
32. FileInputStreamin=null;
33. FileOutputStreamout=null;
34. byte[]buffer=newbyte[102400];
35. try{
36. in=newFileInputStream(this.sourceFile);
37. Filedest=newFile(this.destFile);
38. if(!dest.exists()){//目标文件对应的目录不存在，创建新的目录
39. intindex=newString(this.destFile).lastIndexOf("/");
40. Stringpath=this.destFile.substring(0,index);
41. newFile(path).mkdirs();
42. }
43. out=newFileOutputStream(this.destFile);
44. intnum=0;
45. while((num=in.read(buffer))!=-1){
46. out.write(buffer,0,num);
47. }
48. }catch(FileNotFoundExceptionex){
49. Logger.getLogger(Cpp.class.getName()).log(Level.SEVERE,null,ex);
50. }catch(IOExceptione){
51. Logger.getLogger(Cpp.class.getName()).log(Level.SEVERE,null,e);
52. }finally{
53. try{
54. if(in!=null)
55. in.close();
56. if(out!=null)
57. out.close();
58. }catch(IOExceptionex){
59. Logger.getLogger(Cpp.class.getName()).log(Level.SEVERE,null,ex);
60. }
62. }
63. }
65. publicstaticvoidmain(String[]args){
66. StringsourceFile="d:/颐和园yhy[小新奉献].rmvb";
67. StringdestFile="D:/s/sd/1.rmvb";
68. longstartTime=System.currentTimeMillis();
69. System.out.println("starttocopy");
70. Cppc=newCpp(sourceFile,destFile);
71. longendTime=System.currentTimeMillis();
72. longtime=(endTime-startTime)/1000;
73. System.out.println("copyend;cost:"+time);
74. }
76. }