java文件搜索
public void getDir(String strPath) throws Exception
{
try
{
File f=new File(strPath);
if(f.isDirectory())
{
File[] fList=f.listFiles();
for(int j=0;j<fList.length;j++)
{
if(fList[j].isDirectory())
{
System.out.println(fList[j].getPath());
getDir(fList[j].getPath()); //在getDir函数里面又调用了getDir函数本身
}
}
for(int j=0;j<fList.length;j++)
{
if(fList[j].isFile())
{
System.out.println(fList[j].getPath());//把这话换成你要处理的语句.比如 fList[j].substring(fList[j].length-3,3)=="txt"
}
}
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
java 文件与文件夹拷贝
File fileOld = new File(pathOld);
File fileNew = new File(pathNew);
if(fileOld.exists()){
try {
FileInputStream fis = new FileInputStream(fileOld);
FileOutputStream fos = new FileOutputStream(fileNew);
int read = 0;
while ((read = fis.read()) != -1) {
fos.write(read);
fos.flush();
}
fos.close();
fis.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
java文件重命名
File file = new File("D:\\123.txt");
if(file.exists()) {
file.renameTo(new File("D:\\1234.txt"));
}