±£´æjava¶ÔÏóµ½Êý¾Ý¿â£¬²¢´ÓÊý¾Ý¿â¶Á³öÉú³ÉÓû§½çÃæ
ÏòÊý¾Ý¿â±£´æ¶ÔÏ󣬲ÉÓÃObjectOutputStreamÏòÊý¾Ý¿âÖ±½ÓдÈë
/**
* Title: AF
* Description: ÏòÊý¾Ý¿âÖÐдÈë¶ÔÏó²âÊÔ³ÌÐò
* Copyright: Copyright 2009 ufgov, Inc.
* Company: ufgov
* ´´½¨Ê±¼ä: 2009-10-29
* @author ÁõÓÀΰ(manlge)
* @version 1.0
*/
public class WriteObjectToBlob {
/*
* ½¨±ísql
* CREATE TABLE "AF"."TABLE2" ("NAME" VARCHAR2(36) NOT NULL, "DATA" BLOB NOT NULL) TABLESPACE "AF"
*/
public static Connection getConnection(String host, int port, String dataBaseName,
String userName, String password) throws Exception {
String url = String.format("jdbc:oracle:thin:@%s:%s:%s", host, port,
dataBaseName);
String driver = "oracle.jdbc.driver.OracleDriver";
Class.forName(driver);
Connection con = DriverManager.getConnection(url, userName, password);
return con;
}
/**
* @param args
* @throws SQLException
* @throws ClassNotFoundException
*/
public static void main(String[] args) throws Exception {
Connection connection = getConnection("localhost", 1521, "ORCL", "AF", "1");
System.out.println(connection);
connection.setAut
Ïà¹ØÎĵµ£º
Reflection ÊÇ Java ³ÌÐò¿ª·¢ÓïÑÔµÄÌØÕ÷Ö®Ò»£¬ËüÔÊÐíÔËÐÐÖÐµÄ Java ³ÌÐò¶Ô×ÔÉí½øÐмì²é£¬»òÕß˵“×ÔÉ󔣬²¢ÄÜÖ±½Ó²Ù×÷³ÌÐòµÄÄÚ²¿ÊôÐÔ¡£ÀýÈ磬ʹÓÃËüÄÜ»ñµÃ Java ÀàÖи÷³ÉÔ±µÄÃû³Æ²¢ÏÔʾ³öÀ´¡£
Java µÄÕâÒ»ÄÜÁ¦ÔÚʵ¼ÊÓ¦ÓÃÖÐÒ²ÐíÓõò»ÊǺܶ࣬µ«ÊÇÔÚÆäËüµÄ³ÌÐòÉè¼ÆÓïÑÔÖиù±¾¾Í²»´æÔÚÕâÒ»ÌØÐÔ¡£ÀýÈ磬Pasc ......
java»ñÈ¡µ±Ç°Â·¾¶
1¡¢ÀûÓÃSystem.getProperty()º¯Êý»ñÈ¡µ±Ç°Â·¾¶£º
System.out.println(System.getProperty("user.dir"));//user.dirÖ¸¶¨Á˵±Ç°µÄ·¾¶
2¡¢Ê¹ÓÃFileÌṩµÄº¯Êý»ñÈ¡µ±Ç°Â·¾¶£º
File directory = new File("");//É趨Ϊµ±Ç°Îļþ¼Ð
try{
System.out.println(directory.getCano ......
Ò»¡¢final
¡¡¸ù¾Ý³ÌÐòÉÏÏÂÎÄ»·¾³£¬Java
¹Ø¼ü×ÖfinalÓГÕâÊÇÎÞ·¨¸Ä±äµÄ”»òÕß“ÖÕ̬µÄ”º¬Ò壬Ëü¿ÉÒÔÐÞÊηdzéÏóÀà¡¢·Ç³éÏóÀà³ÉÔ±·½·¨ºÍ±äÁ¿¡£Äã¿ÉÄܳöÓÚÁ½ÖÖÀí½â¶øÐèÒª×èÖ¹¸Ä±ä£ºÉè¼Æ»òЧÂÊ¡£
finalÀ಻Äܱ»¼Ì³Ð£¬Ã»ÓÐ×ÓÀ࣬finalÀàÖеķ½·¨Ä¬ÈÏÊÇfinalµÄ¡£
final·½·¨²»Äܱ»×ÓÀàµÄ·½· ......
¡¡¡¡Ê×ÏÈÒýÓÃһƪÎÄÕ£¬½éÉÜÒ»¸ö¼òµ¥µÄJNIµÄµ÷ÓõĹý³Ì¡£¡¡¡¡JAVAÒÔÆä¿çƽ̨µÄÌØÐÔÉîÊÜÈËÃÇϲ°®£¬¶øÓÖÕýÓÉÓÚËüµÄ¿çƽ̨µÄÄ¿µÄ£¬Ê¹µÃËüºÍ±¾µØ»úÆ÷µÄ¸÷ÖÖÄÚ²¿ÁªÏµ±äµÃºÜÉÙ£¬Ô¼ÊøÁËËüµÄ¹¦ÄÜ¡£½â¾öJAVA¶Ô±¾µØ²Ù×÷µÄÒ»ÖÖ·½·¨¾ÍÊÇJNI¡£¡¡¡¡JAVAͨ¹ýJNIµ÷Óñ¾µØ·½·¨£¬¶ø±¾µØ·½·¨ÊÇÒÔ¿âÎļþµÄÐÎʽ´æ·ÅµÄ£¨ÔÚWINDOWSƽ̨ÉÏÊÇDL ......
ÎÊÌ⣺ÏÖÓÐn¸öÀÏÊóΧ³ÉһԲȦ£¬ÓÐһֻè´ÓÈÎÒâλÖÿªÊ¼³ÔÀÏÊó£¬Ã¿´Î¶¼¸ôÒ»¸öÀÏÊó³Ô£¬Çë¸ø³ö×îºóÒ»¸öÀÏÊóµÄ±àºÅ£¿ÌâĿҪÇóÊÇÈθøÀÏÊóÊýn£¬Êä³öè×îºó³ÔµÄÀÏÊóµÄ±àºÅ¡£
ÎҵĽⷨ£º
1.¼òµ¥µÄ·½·¨¾ÍÊÇÄ£ÄâÕâ¸ö¹ý³Ì¡£Ê¹ÓÃÒ»¸öÊý×é´ú±íÀÏÊóÊÇ·ñ±»³Ôµô£¬Ñ»·±éÀú¡£
2.¸Ä½øÒ»Ïµķ½·¨£¬ÆäʵÕâ¸öÎÊÌâ¾ÍÊÇÒ»¸öm=2µÄԼɪ·ò»·ÎÊÌâ¡£
......