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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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  1. RequestDispatcher.forward()
    ÊÇÔÚ·þÎñÆ÷¶ËÆð×÷ÓÃ,µ±Ê¹ÓÃforward()ʱ,Servlet engine´«µÝHTTPÇëÇó´Óµ±Ç°µÄServlet or JSPµ½ÁíÍâÒ»¸öServlet,JSP »òÆÕͨHTMLÎļþ,Ò²¼´ÄãµÄformÌá½»ÖÁa.jsp,ÔÚa.jspÓõ½ÁËforward()ÖØ¶¨ÏòÖÁb.jsp,´ËʱformÌá½»µÄËùÓÐÐÅÏ¢ÔÚ b.jsp¶¼¿ÉÒÔ»ñµÃ,²ÎÊý×Ô¶¯´«µÝ. µ«fo ......

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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 ......

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<context-param></context-param> context-paramÔªËØÉùÃ÷Ó¦Ó÷¶Î§Äڵijõʼ»¯²ÎÊý¡£
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JSPÖÐÁ¬½ÓSQL 2000Êý¾Ý¿âµÄÎÊÌâ×ܽá

 
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JSP(JSTL)ÖÐʹÓó£Á¿·ÀÖ¹Ó²±àÂë

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public interface MyConstant
{
public static final String STATE_01= "01";
}
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this.state=MyConstant.STATE_01;
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