请教关于 JSP 的类路径问题 这个可能行就多了,你在命令行执行时不需要在类里写上package,但是在jsp中如果是在某个暴力就必须鞋,把你的代码贴出来,写上你的类路径,大家分析看看 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 以下是源代码,请大家帮我分析看看,首先说明一下,服务器配置正常,可运行其他 HTML,JSP,SERVLET.但以前使用时未导入包.环境 : WIN2000 SERVER + JDK 1.4 + Apache 2.0.45 + Tomcat 5.0 + MySQL 3.23.55 . 类路径设置 classpath e:\website\jsp\;....... 目录结构 e:\website\jsp\bean;DBControlBean.javapackage bean;import bean.dbconn.DBConnection;import java.sql.*;public class DBControlBean{ DBConnection dbc = null; ResultSet rset = null; public DBControlBean() { dbc = new DBConnection(); } public boolean openConnection() { return dbc.openConnection(); } public void executeQuery(String query) throws SQLException { this.rset = dbc.executeQuery(query); } public void executeUpdate(String query) throws SQLException { dbc.executeUpdate(query); } public int getColumnCount() throws SQLException { ResultSetMetaData rsmd = rset.getMetaData(); return rsmd.getColumnCount(); } public String getColumnName(int index) throws SQLException { ResultSetMetaData rsmd = rset.getMetaData(); return rsmd.getColumnName(index); } public String getString(int index) throws SQLException { return rset.getString(index).trim(); } public String getString(String columnName) throws SQLException { return rset.getString(columnName).trim(); } public boolean next() throws SQLException { return rset.next(); } public void close() throws SQLException { if(rset != null) rset.close(); if(dbc != null) dbc.close(); } protected void finalize() throws Throwable { close(); }} register.jsp<%@page language="java" import="bean.DBControlBean" contentType="text/html;charset=GB2312" info="Register User to DataBase" %><jsp:useBean id="regBean" scope="request" class="DBControlBean" /><% String username = request.getParameter("username"); String password = request.getParameter("password"); String sex = request.getParameter("sex"); String age = request.getParameter("age"); String phone = request.getParamter("phone"); String portrait = request.getParameter("portrait"); String mail = request.getParameter("mail"); String sign = request.getParameter("sign"); String oicq = request.getParameter("oicq"); String look = request.getParameter("look"); regBean.executeUpdate("insert into user values (username,password,sex,age,phone,portrait,mail,sign,oicq,look)"); %><html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><title>用户注册</title></head></html> 类路径是放在你自己建的目录中的。如:你的文件夹是myweb。它里面建两个文件夹jsp和Web-inf,在jsp文件夹中放你的jsp文件。Web-inf它里面建个classes文件夹。和一个web.xml文件。classes文件夹放你的类文件。web.xml文件的内容和root目录下的web.xml文件内容一样。 初学者请教webservice的一个问题。请高手帮忙解答,谢谢! spring加载时报异常 小弟急用啊 Hibernate为什么不接收我给他的Set集合 子画面关闭后父画面再迁移 unicode把我弄糊涂了 WinXP下,通过WIA操纵扫描仪获取图像问题 更新触发器问题 请问如何用Java Servlet或Jsp上传图像文件并把该图像保存到数据库中去,谢了! 请问一下如何放置文件 求java+javascript大神支招 apache+tomcat:单独的JSP能运行,用到javabean的jsp不能运行, 是javabean的错误吗? jsp中如何调用一个java程序?
目录结构 e:\website\jsp\bean;
DBControlBean.javapackage bean;import bean.dbconn.DBConnection;
import java.sql.*;public class DBControlBean
{
DBConnection dbc = null;
ResultSet rset = null;
public DBControlBean()
{
dbc = new DBConnection();
}
public boolean openConnection()
{
return dbc.openConnection();
}
public void executeQuery(String query) throws SQLException
{
this.rset = dbc.executeQuery(query);
}
public void executeUpdate(String query) throws SQLException
{
dbc.executeUpdate(query);
}
public int getColumnCount() throws SQLException
{
ResultSetMetaData rsmd = rset.getMetaData();
return rsmd.getColumnCount();
}
public String getColumnName(int index) throws SQLException
{
ResultSetMetaData rsmd = rset.getMetaData();
return rsmd.getColumnName(index);
}
public String getString(int index) throws SQLException
{
return rset.getString(index).trim();
}
public String getString(String columnName) throws SQLException
{
return rset.getString(columnName).trim();
}
public boolean next() throws SQLException
{
return rset.next();
}
public void close() throws SQLException
{
if(rset != null) rset.close();
if(dbc != null) dbc.close();
}
protected void finalize() throws Throwable
{
close();
}
}
register.jsp<%@page language="java" import="bean.DBControlBean" contentType="text/html;charset=GB2312" info="Register User to DataBase" %><jsp:useBean id="regBean" scope="request" class="DBControlBean" /><% String username = request.getParameter("username");
String password = request.getParameter("password");
String sex = request.getParameter("sex");
String age = request.getParameter("age");
String phone = request.getParamter("phone");
String portrait = request.getParameter("portrait");
String mail = request.getParameter("mail");
String sign = request.getParameter("sign");
String oicq = request.getParameter("oicq");
String look = request.getParameter("look"); regBean.executeUpdate("insert into user values (username,password,sex,age,phone,portrait,mail,sign,oicq,look)");
%><html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>用户注册</title>
</head>
</html>