jsp怎么连接数据库啊
配置:tomcat 5.5, sql server 2000, 参数全是默认, 谢谢哦我的程序是:
<%@ page contentType="text/html;charset=gb2312"%>
<%@ page import="java.sql.*"%>
<html>
<body>
<% Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver").newInstance();
String url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=news";
//news为你的数据库的
String user="ww";
String password="ww";
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()) {%>
您的第一个字段内容为:<%=rs.getString(1)%>
您的第二个字段内容为:<%=rs.getString(2)%>
<%}%>
<%out.print("数据库操作成功,恭喜你");%>
<%rs.close();
stmt.close();
conn.close();
%>
</body>
</html>
错误是:
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Exception in JSP: /datatext.jsp:5 2: <%@ page import="java.sql.*"%> 3: <html> 4: <body> 5: <% Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver").newInstance(); 6: String url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=news"; 7: //pubs为你的数据库的 8: String user="ww"; Stacktrace: org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:504) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
javax.servlet.ServletException: com.microsoft.jdbc.sqlserver.SQLServerDriver org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:858) org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:791) org.apache.jsp.datatext_jsp._jspService(datatext_jsp.java:86) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
java.lang.ClassNotFoundException: com.microsoft.jdbc.sqlserver.SQLServerDriver org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1352) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1198) org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:127) org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:65) java.lang.ClassLoader.loadClassInternal(Unknown Source) java.lang.Class.forName0(Native Method) java.lang.Class.forName(Unknown Source) org.apache.jsp.datatext_jsp._jspService(datatext_jsp.java:47) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.16 logs.