java µ½Êý¾Ý¿â
public ActionForward backUpAction(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
Calendar cDay = Calendar.getInstance();
SimpleDateFormat myf = new SimpleDateFormat("yyyyMMddHHmmss");
String day = myf.format(cDay.getTime());
// »ñµÃConstantÖж¨ÒåµÄÊý¾Ý¿â±¸·ÝÎļþ´æ·Å·¾¶£¬¸ñʽÈ磺
// public static final String DataBaseBackUpPath = "D:\\sOADB\\";
String outputFile = Constant.DataBaseBackUpPath;
// Èç¹û·þÎñÆ÷¶ËÓ²ÅÌÉϲ»´æÔÚoutputFileĿ¼£¬Ôò´´½¨Õâ¸öĿ¼
File mydir = new File(outputFile);
if (!(mydir.exists())) {
mydir.mkdir();
}
// ±¸·ÝÎļ
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Java IOµÄÒ»°ãʹÓÃÔÔò£º
Ò»¡¢°´Êý¾ÝÀ´Ô´£¨È¥Ïò£©·ÖÀࣺ
1¡¢ÊÇÎļþ£º FileInputStream, FileOutputStream, FileReader, FileWriter
2¡¢ÊÇbyte[]£ºByteArrayInputStream, ByteArrayOutputStream
3¡¢ÊÇChar[]: CharArrayReader, CharArrayWriter
4¡¢ÊÇString: StringBufferInputStream, StringReader, StringWriter
5¡¢ ......
package com.down.servlet;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URLEncoder;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import java ......
class Dog {
public static void bark() {
System.out.print("woof ");
}
}
class Basenji extends Dog {
public static void bark() { }
}
public class Bark {
public static void main(String args[]) {
Dog woofer = new Dog();
Dog nipper = new Basenji();
woofer.bark();
nipper.bark();
}
}
ËæÒâµØ ......