JAVA´æ´¢¹ý³ÌºÍµ÷ÓÃ
´úÂëÄÚÈÝ
create or replace procedure batchUpdateCustomer(p_age in number) as
begin
update CUSTOMERS set AGE=AGE+1 where AGE>p_age;
end;
ÒÔÉÏ´æ´¢¹ý³ÌÓÐÒ»¸ö²ÎÊýp_age£¬´ú±í¿Í»§µÄÄêÁ䣬ӦÓóÌÐò¿É°´ÕÕÒÔÏ·½Ê½µ÷Óô洢¹ý³Ì£º
´úÂëÄÚÈÝ
tx = session.beginTransaction();
Connection con=session.connection();
String procedure = "{call batchUpdateCustomer(?) }";
CallableStatement cstmt = con.prepareCall(procedure);
cstmt.setInt(1,0); //°ÑÄêÁä²ÎÊýÉèΪ0
cstmt.executeUpdate();
tx.commit();
create or replace produre batchUpdateStudent(a in number) as
begin
update STUDENT set AGE=AGE+1 where AGE>a;
end;
µ÷ÓôúÂëÈçÏ£º
Transaction tx=session.beginSession();
Connection conn=session.connection();
String pd=”...{call batchUpdateStudent(?)}”;
CallableStatement cstmt=conn.PrepareCall(pd);
cstmt.setInt(1,20); //°ÑÄêÁäÕâ¸ö²ÎÊýÉèΪ20
tx.commit()£»
Ïà¹ØÎĵµ£º
ÒÔǰÔÚ¼ÒÌýÕÅТÏéÀÏʦµÄÊÓÆµÊ±,ÂÅ´ÎÌýµ½ÕÅÀÏʦ½²µ½ÕÆÎÕJAVA»ù´¡¶ÔÓÚÎÒÃÇÒªÀ´´«ÖDzμӾÍÒµÅàѵҪѧϰµÄпγ̵ÄÖØÒª.ÏÖÔÚ¿´À´,ÕâЩ»°ÕæµÄÒ»µã¶¼²»Îª¹ý!ÓÐЩͬѧ»òÐíûÓÐÉî¿ÌÈÏʶÕÅÀÏʦ˵µÄÕâ·¬»°,×Ô¼ºÆ½Ê±¶¯ÊÖÓÖÌ«ÉÙ.¾ÍÄÃÏÖÔÚѧµÄ¾ÍÒµÅàѵ°àµÄ¿Î³ÌÀ´Ëµ,JAVA¿ª·¢ÓõŤ¾ßÏñMYECLIPSEµÈ,ÆäʹÓÃÕæµÄÊÇÈÃÈ˸е½¾ªÏ²,ÒÔǰÕÅÀÏʦÔÚ ......
//ÇóÁ½ÊýµÄ×î´ó¹«Ô¼ÊýºÍ×îС¹«±¶Êý
import java.util.*;
public class Dais02
{
public static void main(String args[])
{
int m,n;
Scanner s = new Scanner(System.in);
System.out.println("ÇëÊäÈëÄãÏëÒªÊÇÊý×Ö");
m = s.nextInt();
n ......
Java EE ¸ÅÊö
Javaa EE:·Ö²¼Ê½ ÆóÒµ¼¶Ó¦Óù淶ºÍ±ê×¼
ÍÆÄ£Ê½£º²»ÓÃÇëÇó£¬Ç¿ÖÆÈÿͻ§½ÓÊÜ
Àģʽ£ºÈÿͻ§ÇëÇóºÍÏìÓ¦¡£
¼Ü¹¹£º
ÇáÁ¿¼¶£ºstruct2 /spring /hibernate
Modle1:jsp+JavaBean+DB
Model2(MVC):jsp+servlet+JavaBean+DB
ÖØÁ¿¼¶£ºJsp+servlet+EJB+DB
±íʾ²ã£ºÒµÎñ²ã£º³Ö¾Ã²ã£ºÊý¾Ý¿â£º
JNDI£º²éÕÒ·Ö²¼¶ÔÏóµ ......
¹Ø¼ü×Ö: java³éÏóÀàºÍ½Ó¿ÚµÄÇø±ð---Ïêϸ½â˵
abstract classºÍinterfaceÊÇJavaÓïÑÔÖжÔÓÚ³éÏóÀඨÒå½øÐÐÖ§³ÖµÄÁ½ÖÖ»úÖÆ£¬ÕýÊÇÓÉÓÚÕâÁ½ÖÖ»úÖÆµÄ´æÔÚ£¬²Å¸³ÓèÁËJavaÇ¿´óµÄÃæÏò¶ÔÏóÄÜÁ¦¡£abstract classºÍinterfaceÖ®¼äÔÚ¶ÔÓÚ³éÏóÀඨÒåµÄÖ§³Ö·½Ãæ¾ßÓкܴóµÄÏàËÆÐÔ£¬ÉõÖÁ¿ÉÒÔÏà»¥Ìæ»»£¬Òò´ËºÜ¶à¿ª·¢ÕßÔÚ½øÐгéÏóÀඨÒåʱ¶ÔÓÚ ......
javaÖÐsynchronizedÓ÷¨(zz)
´ò¸ö±È·½£ºÒ»¸öobject¾ÍÏñÒ»¸ö´ó·¿×Ó£¬´óÃÅÓÀÔ¶´ò¿ª¡£·¿×ÓÀïÓÐ ºÜ¶à·¿¼ä£¨Ò²¾ÍÊÇ·½·¨£©¡£ÕâЩ·¿¼äÓÐÉÏËøµÄ£¨synchronized·½·¨£©£¬ ºÍ²»ÉÏËøÖ®·Ö£¨ÆÕͨ·½·¨£©¡£·¿ÃſڷÅ×ÅÒ»°ÑÔ¿³×£¨key£©£¬Õâ°ÑÔ¿³×¿ÉÒÔ´ò¿ªËùÓÐÉÏËøµÄ·¿¼ä¡£ÁíÍâÎÒ°ÑËùÓÐÏëµ÷ÓøöÔÏó·½·¨µÄÏ̱߳ÈÓ÷³ÉÏë½øÈëÕâ·¿×Óij¸ö ......