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ÅäÖóÌÐòµÄÔËÐÐĿ¼ÓëJDBCÊý¾ÝÔ´:
<Context path="/test" docBase="F:\JSPLesson\test" reloadable="true">
<Resource name="jdbc/bookstore" auth="Container" type="javax.sql.DataSource"
maxActive="100" maxIdle="30" maxWait="10000"
username="root" password="123456"
driverClassName="com.mysql.jdbc.Driver"
url="jdbc:mysql://localhost:3306/bookstore?autoReconnect=true"/>
</Context>
JSPÖÐͨ¹ýÈçÏ·½Ê½µÃµ½Êý¾Ý¿âÁ¬½Ó:
<%
Context ctx = new InitialContext();
DataSource ds = (DataSource)ctx.lookup("java:comp/env/jdbc/bookstore");
Connection conn = ds.getConnection();
%>
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¢Ù out - javax.servlet.jsp.jspWriter
out¶ÔÏóÓÃÓڰѽá¹ûÊä³öµ½ÍøÒ³ÉÏ¡£
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1. void clear() ;
Çå³ýÊä³ö»º³åÇøµÄÄÚÈÝ£¬µ«ÊDz»Êä³öµ½¿Í»§¶Ë¡£
2. void clearBuffer() ;
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3. void close() ;
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½â¾öjsp»òserverlet ²»ÄܽâÎömultipart/form-data ÀàÐÍµÄ±íµ¥ÓòµÄÎÊÌâ
10 6ÔÂ 2008
Situation:
Javax.servlet.HttpServletRequest.getParameter(String) returns null when the ContentType is multipart/form-data
Solutions:
Solution A:
1. download http://www.servlets.com/cos/index.html
2. invoke getPara ......
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<%@ page contentType="text/html; charset=gb2312" language="java"
import="java.sql.*"%>
<%
/*********************
&nb ......
this.state="01";ͨ³£µÄ×ö·¨ÊÇдһ¸öÀࣨ½Ó¿Ú£©À´´æ·Å³£Á¿
public interface MyConstant
{
public static final String STATE_01= "01";
}
È»ºóÔÚ³ÌÐòÖÐÕâÑùд¾Í¿ÉÒÔÁË
this.state=MyConstant.STATE_01;
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