补充一下web.xml的源码:
---------------------------------begin-------------------------------------------
<?xml version="1.0" encoding="ISO-8859-1"?><!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd"><web-app>
<display-name>Welcome to Tomcat</display-name>
<description>
Welcome to Tomcat
</description>
<!-- JSPC servlet mappings start --> <servlet>
<servlet-name>org.apache.jsp.index_jsp</servlet-name>
<servlet-class>org.apache.jsp.index_jsp</servlet-class>
</servlet> <servlet-mapping>
<servlet-name>org.apache.jsp.index_jsp</servlet-name>
<url-pattern>/index.jsp</url-pattern>
</servlet-mapping><!-- JSPC servlet mappings end --></web-app>
-------------------------------------end-----------------------------------------
---------------------------------begin-------------------------------------------
<?xml version="1.0" encoding="ISO-8859-1"?><!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd"><web-app>
<display-name>Welcome to Tomcat</display-name>
<description>
Welcome to Tomcat
</description>
<!-- JSPC servlet mappings start --> <servlet>
<servlet-name>org.apache.jsp.index_jsp</servlet-name>
<servlet-class>org.apache.jsp.index_jsp</servlet-class>
</servlet> <servlet-mapping>
<servlet-name>org.apache.jsp.index_jsp</servlet-name>
<url-pattern>/index.jsp</url-pattern>
</servlet-mapping><!-- JSPC servlet mappings end --></web-app>
-------------------------------------end-----------------------------------------
...\test\WEB-INF\classes下就行了
不应该是
...\test\WEB-INF\class下
然后 classes/test/sql_bean.class
然后把sql_data.class 和 sql_data.java放到classes/sql_data 下面
引用的时候
<jsp:useBean id="sqlbean" class="sql_data.sql_data" scope="session" />就可以了?
1.在bean中,加入包名,比如:
package SqlData; import java.sql.*;
public class sql_data
//其他代码部分2.在jsp页面中,头部加入:<%@ page impor="SqlData.*" %>
使用beans的时候,加入:<jsp:useBean id="sqlbean" class="sql_data" scope="session" />3.在tomcat的安装目录下,比如我的是C:\jakarta-tomcat-5.0.18,然后在
C:\jakarta-tomcat-5.0.18\shared\classes的下面,建立一个名为SqlData的文件夹,把你的class文件sql_data.class放在里面就行了。希望对你有所帮助