Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

JAVAÅäÖÃJNDIÊý¾ÝÔ´

 ±¾°¸ÀýÊÇʹÓÃSQLSERVER2005×÷ΪÊý¾ÝÔ´£¬Ê¹ÓÃTOMCAT6.0
µÚÒ»²½£¬°ÑÒÔÏ´úÂ뿽±´µ½tomcatµÄ°²×°Ä¿Â¼confÎļþ¼Ðcontext.xmlÎļþÏ¡£
Êý¾Ý¿âÁ¬½ÓÇëÐÞ¸Ä
<Resource name="jdbc/demo"
auth="Container"
type="javax.sql.DataSource"
driverClassName="com.microsoft.sqlserver.jdbc.SQLServerDriver"
url="jdbc:sqlserver://localhost:1433;databaseName=Demo"
username="sa"
password=""
maxActive="100"
maxIdle="30"
maxWait="10000" />
µÚ¶þ²½£¬°Ñjdbc¼Ü°ü¿½±´µ½tomcat°²×°Ä¿Â¼libÏÂ
µÚÈý²½£¬ÔÚ³ÌÐòÀïдÈçÒÔÏ´úÂë
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.sql.DataSource;
public static Connection getConn(){
Connection con=null;
try {
Context ctx=new InitialContext();
DataSource ds=(DataSource) ctx.lookup("java:comp/env/jdbc/demo");
if(ds==null){
System.out.println("Êý¾ÝÔ´²»ÕýÈ·");
}else{
con=ds.getConnection();
}
}catch (Exception e) {
// TODO Auto-generated catch block
e.getMessage();
}
return con;
}
µÚËIJ½£¬Æô¶¯tomcat²ÅÄܲâÊÔ


Ïà¹ØÎĵµ£º

javaÈëÃÅ

 Javaѧϰ´ÓÈëÃŵ½¾«Í¨ 
Ò»¡¢ JDK (Java Development Kit) 
JDKÊÇÕû¸öJavaµÄºËÐÄ£¬°üÀ¨ÁËJavaÔËÐл·¾³£¨Java Runtime Envirnment£©£¬Ò»¶ÑJava¹¤¾ßºÍJava»ù´¡µÄÀà¿â(rt.jar)¡£²»ÂÛʲôJavaÓ¦Ó÷þÎñÆ÷ʵÖʶ¼ÊÇÄÚÖÃÁËij¸ö°æ±¾µÄJDK¡£Òò´ËÕÆÎÕJDKÊÇѧºÃJavaµÄµÚÒ»²½¡£×îÖ÷Á÷µÄJ ......

sql 2005 ´æ´¢¹ý³Ì·ÖÒ³ java ´úÂë

 create PROCEDURE pagelist
@tablename nvarchar(50),
@fieldname nvarchar(50)='*',         
@pagesize int output,--ÿҳÏÔʾ¼Ç¼ÌõÊý
@currentpage int output,--µÚ¼¸Ò³
@orderid nvarchar(50),--Ö÷¼üÅÅÐò
@sort int,--ÅÅÐò·½Ê½£¬1±íʾÉýÐò£¬0±íʾ½µÐòÅÅÁÐ ......

JavaÐÂÊÖÈëÃźÜÖØÒªµÄ¼¸¸ö»ù±¾¸ÅÄî


¡¡finalÀࣺΪ·ÀÖ¹ËûÈË´ÓÄãµÄÀàÉÏÅÉÉúÐÂÀ࣬´ËÀàÊDz»¿ÉÀ©Õ¹µÄ¡£
¡¡¡¡¶¯Ì¬µ÷ÓñȾ²Ì¬µ÷Óû¨·ÑµÄʱ¼äÒª³¤¡£
¡¡¡¡³éÏóÀࣺ¹æ¶¨Ò»¸ö»ò¶à¸ö³éÏó·½·¨µÄÀà±¾Éí±ØÐ붨ÒåΪabstract¡£
¡¡¡¡Àý£º public abstract string getDescripition
¡¡¡¡JavaÖеÄÿһ¸öÀà¶¼ÊÇ´ÓObjectÀàÀ©Õ¹¶øÀ´µÄ¡£
¡¡¡¡objectÀàÖеÄequalºÍtoString·½·¨¡ ......

javaºÍphpÊý×Ö´¦ÀíÉÏ

javaʹÓÃMathÀ࣬phpʹÓÃϵͳº¯Êý
ceil¹¦ÄÜ ´óÓÚµÈÓÚijÊý(³£ÓÃÓÚ·ÖÒ³Ò³Êý¼ÆË㣩
phpÖУºceil(a/b)
javaÖУº(int)Math.ceil((double)a/b))    Math.ceilÔÚjavaÖÐÐèÒª´«ÈëdoubleÐÍ£¬¶ø·µ»ØÒ²ÊÇdoubleÐÍ¡£×¢ÒâÕâÀïÓÃ(double)a/b²Å¿ÉÒÔ¡£
a/b,(dobule)(a/b)¶¼²»ÐС£ÒòΪËûÃÇ»áÏÈ×Ô¶¯ÉáÆúСÊýÈ¡µÃÕûÊý
flooe ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ