public class conOracle extends HttpSessionBindingListener{
解决方案 »
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symbol : method CreatStatement ()
location: interface java.sql.Connection
Statement stmt=con.CreatStatement();
^Connection con=conbean.getConnection();
Statement stmt=con.CreatStatement();
ResultSet rs=stmt.executeQuery("SELECT * from TEST");
提示:
Connection con=DriverManager.getConnection
con.createStatement()
type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception org.apache.jasper.JasperException
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:358)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
root cause java.lang.NullPointerException
org.apache.jsp.conbean_jsp._jspService(conbean_jsp.java:60)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
note The full stack trace of the root cause is available in the Tomcat logs.
Connection con=DriverManager.getConnection(url,user,password);
该行将con变量重新定义一遍
该行逻辑错误,应改成
con = DriverManager.getConnection(url,user,password);
你装了ms-sql的jdbc驱动没有?
就是三个jar文件msbase.jar,mssqlserver.jar,msutil.jar.
可以放在如下的目录下:E:\j2sdk1.4\jre\lib\ext
试试看。