| 网站首页 | 业界新闻 | 小组 | 威客 | 人才 | 下载频道 | 博客 | 代码贴 | 在线编程 | 编程论坛
欢迎加入我们,一同切磋技术
用户名:   
 
密 码:  
共有 827 人关注过本帖
标题:[求助]数据库连接问题
只看楼主 加入收藏
天使坠落的眼泪
Rank: 2
等 级:新手上路
威 望:5
帖 子:204
专家分:0
注 册:2006-5-16
收藏
 问题点数:0 回复次数:10 
[求助]数据库连接问题

<%@page contentType="text/html;charset=gb2312" %>
<%@page import="java.sql.*"%>

<html>
<body>
<h1>JSP Page</h1>
<%
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver").newInstance();
String url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=master";
String user="sa";
String password="zhj147254151";
Connection conn=DriverManager.getConnection(url,user,password);
Statement
stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
String sql="select* from test";
ResultSet rs=stmt.executeQuery(sql);
while(rs.next())
{%>
第一个字段的内容<%=rs.getString(1)%>
第二个字段的内容<%=rs.getString(2)%>
<%}%>
<%out.print("数据库联接成功");%>
<%
rs.close();
stmt.close();
conn.close();
%>


</body>
</html>

这是连接SQL 2000的原码,运行出错,生成的servlet错误是package org.apache.jsp不存在,是什么原因,代码都是对的,是不是少什么东西?

搜索更多相关主题的帖子: 数据库 String page target 
2006-11-19 22:23
千里冰封
Rank: 16Rank: 16Rank: 16Rank: 16
来 自:灌水之王
等 级:版主
威 望:155
帖 子:28477
专家分:59
注 册:2006-2-26
收藏
得分:0 

你应该把错误代码全部帖出来


可惜不是你,陪我到最后
2006-11-19 23:30
天使坠落的眼泪
Rank: 2
等 级:新手上路
威 望:5
帖 子:204
专家分:0
注 册:2006-5-16
收藏
得分:0 

HTTP Status 500 -

--------------------------------------------------------------------------------

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: com.microsoft.jdbc.sqlserver.SQLServerDriver
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:846)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:779)
org.apache.jsp.connection_jsp._jspService(connection_jsp.java:91)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:99)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:325)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:245)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:362)


root cause

java.lang.ClassNotFoundException: com.microsoft.jdbc.sqlserver.SQLServerDriver
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1332)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1181)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:150)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:71)
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
java.lang.Class.forName0(Native Method)
java.lang.Class.forName(Class.java:164)
org.apache.jsp.connection_jsp._jspService(connection_jsp.java:51)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:99)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:325)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:245)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:362)


note The full stack trace of the root cause is available in the Apache Tomcat/5.5.7 logs.

这是运行错误


樹欲靜而風不止... http://blog./seablue_xj
2006-11-20 16:24
天使坠落的眼泪
Rank: 2
等 级:新手上路
威 望:5
帖 子:204
专家分:0
注 册:2006-5-16
收藏
得分:0 

package org.apache.jsp;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import java.sql.*;

public final class connection_jsp extends org.apache.jasper.runtime.HttpJspBase
implements org.apache.jasper.runtime.JspSourceDependent {

private static java.util.Vector _jspx_dependants;

public java.util.List getDependants() {
return _jspx_dependants;
}

public void _jspService(HttpServletRequest request, HttpServletResponse response)
throws java.io.IOException, ServletException {

JspFactory _jspxFactory = null;
PageContext pageContext = null;
HttpSession session = null;
ServletContext application = null;
ServletConfig config = null;
JspWriter out = null;
Object page = this;
JspWriter _jspx_out = null;
PageContext _jspx_page_context = null;


try {
_jspxFactory = JspFactory.getDefaultFactory();
response.setContentType("text/html;charset=gb2312");
pageContext = _jspxFactory.getPageContext(this, request, response,
null, true, 8192, true);
_jspx_page_context = pageContext;
application = pageContext.getServletContext();
config = pageContext.getServletConfig();
session = pageContext.getSession();
out = pageContext.getOut();
_jspx_out = out;

out.write("\n");
out.write("\n");
out.write("\n");
out.write("<html>\n");
out.write(" <body>\n");
out.write(" <h1>JSP Page</h1>\n");
out.write(" ");

Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver").newInstance();
String url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=master";
String user="sa";
String password="zhj147254151";
Connection conn=DriverManager.getConnection(url,user,password);
Statement
stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
String sql="select* from test";
ResultSet rs=stmt.executeQuery(sql);
while(rs.next())
{
out.write("\n");
out.write(" 第一个字段的内容");
out.print(rs.getString(1));
out.write("\n");
out.write(" 第二个字段的内容");
out.print(rs.getString(2));
out.write("\n");
out.write(" ");
}
out.write("\n");
out.write(" ");
out.print("数据库联接成功");
out.write("\n");
out.write(" ");

rs.close();
stmt.close();
conn.close();

out.write("\n");
out.write(" \n");
out.write(" \n");
out.write(" </body>\n");
out.write("</html>\n");
} catch (Throwable t) {
if (!(t instanceof SkipPageException)){
out = _jspx_out;
if (out != null && out.getBufferSize() != 0)
out.clearBuffer();
if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
}
} finally {
if (_jspxFactory != null) _jspxFactory.releasePageContext(_jspx_page_context);
}
}
}
这是翻译成的serlvet,


樹欲靜而風不止... http://blog./seablue_xj
2006-11-20 16:26
天使坠落的眼泪
Rank: 2
等 级:新手上路
威 望:5
帖 子:204
专家分:0
注 册:2006-5-16
收藏
得分:0 

package org.apache.jsp;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import java.sql.*;

public final class connection_jsp extends org.apache.jasper.runtime.HttpJspBase
implements org.apache.jasper.runtime.JspSourceDependent {
//
在这的提示是org.apache.jasper.runtime does not exit

private static java.util.Vector _jspx_dependants;

public java.util.List getDependants() {
return _jspx_dependants;
}

public void _jspService(HttpServletRequest request, HttpServletResponse response)
throws java.io.IOException, ServletException {

JspFactory _jspxFactory = null;
PageContext pageContext = null;
HttpSession session = null;
ServletContext application = null;
ServletConfig config = null;
JspWriter out = null;
Object page = this;
JspWriter _jspx_out = null;
PageContext _jspx_page_context = null;


try {
_jspxFactory = JspFactory.getDefaultFactory();
response.setContentType("text/html;charset=gb2312");
pageContext = _jspxFactory.getPageContext(this, request, response,
null, true, 8192, true);
_jspx_page_context = pageContext;
application = pageContext.getServletContext();
config = pageContext.getServletConfig();
session = pageContext.getSession();
out = pageContext.getOut();
_jspx_out = out;

out.write("\n");
out.write("\n");
out.write("\n");
out.write("<html>\n");
out.write(" <body>\n");
out.write(" <h1>JSP Page</h1>\n");
out.write(" ");

Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver").newInstance();
String url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=master";
String user="sa";
String password="zhj147254151";
Connection conn=DriverManager.getConnection(url,user,password);
Statement
stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
String sql="select* from test";
ResultSet rs=stmt.executeQuery(sql);
while(rs.next())
{
out.write("\n");
out.write(" 第一个字段的内容");
out.print(rs.getString(1));
out.write("\n");
out.write(" 第二个字段的内容");
out.print(rs.getString(2));
out.write("\n");
out.write(" ");
}
out.write("\n");
out.write(" ");
out.print("数据库联接成功");
out.write("\n");
out.write(" ");

rs.close();
stmt.close();
conn.close();

out.write("\n");
out.write(" \n");
out.write(" \n");
out.write(" </body>\n");
out.write("</html>\n");
} catch (Throwable t) {
if (!(t instanceof SkipPageException)){
out = _jspx_out;
if (out != null && out.getBufferSize() != 0)
out.clearBuffer();
if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
}
} finally {
if (_jspxFactory != null) _jspxFactory.releasePageContext(_jspx_page_context);
}
}
}
不知道该怎么去改


樹欲靜而風不止... http://blog./seablue_xj
2006-11-20 16:31
千里冰封
Rank: 16Rank: 16Rank: 16Rank: 16
来 自:灌水之王
等 级:版主
威 望:155
帖 子:28477
专家分:59
注 册:2006-2-26
收藏
得分:0 
java.lang.ClassNotFoundException: com.microsoft.jdbc.sqlserver.SQLServerDriver


是你的类找不到

可惜不是你,陪我到最后
2006-11-20 16:40
天使坠落的眼泪
Rank: 2
等 级:新手上路
威 望:5
帖 子:204
专家分:0
注 册:2006-5-16
收藏
得分:0 
那应该怎么去改呢?

樹欲靜而風不止... http://blog./seablue_xj
2006-11-20 22:14
天使坠落的眼泪
Rank: 2
等 级:新手上路
威 望:5
帖 子:204
专家分:0
注 册:2006-5-16
收藏
得分:0 

樹欲靜而風不止... http://blog./seablue_xj
2006-11-21 22:16
千里冰封
Rank: 16Rank: 16Rank: 16Rank: 16
来 自:灌水之王
等 级:版主
威 望:155
帖 子:28477
专家分:59
注 册:2006-2-26
收藏
得分:0 
把那三个SQL驱动包加入到classpath 中

可惜不是你,陪我到最后
2006-11-21 22:21
rufeng521
Rank: 1
等 级:新手上路
帖 子:47
专家分:0
注 册:2006-7-26
收藏
得分:0 

对,没加驱动,加上就没问题了


笨鸟先飞!!
2006-11-22 10:44
快速回复:[求助]数据库连接问题
数据加载中...
 
   



关于我们 | 广告合作 | 编程中国 | 清除Cookies | TOP | 手机版

编程中国 版权所有,并保留所有权利。
Powered by Discuz, Processed in 0.110470 second(s), 7 queries.
Copyright©2004-2024, BCCN.NET, All Rights Reserved