묻고답하기

<%@ page language = "java" import = "java.sql.*" contentType = "text/html;charset=euc-kr" %>

<html>
<head>
        <style type="text/css">
        <!--
        td {font-family:tahoma; /*font-style: italic;*/
               font-weight:700; font-size: 11pt; color:#9370DB;}
        -->
        </style>


</head>
<body>
<center>
<%    
        String k = new String(request.getParameter("korean").getBytes("8859_1"),"euc-kr");
        Class.forName("org.gjt.mm.mysql.Driver");
        Connection Conn = DriverManager.getConnection("jdbc:mysql://localhost/libsboard","admin","xxx");
        PreparedStatement pstmt = Conn.prepareStatement
        ("insert into testk (test) values (?)");
        pstmt.setString(1,k);
        pstmt.executeUpdate();
        pstmt.close();
        Conn.close();
%>
<form>
<input type = "text" name = "korean">
</form>

</body>
</html>

이게 소스구요 ;; 에러가 자꾸 뜨네요 ;;


이런에러가 떠요

Apache Tomcat/4.0.1 - HTTP Status 500 - Internal Server Error

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

type Exception report

message Internal Server Error

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

exception

java.lang.NullPointerException
        at org.apache.jsp.$121$jsp._jspService($121$jsp.java:60)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:202)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:382)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:474)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:201)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
        at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2344)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
        at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:163)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
        at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1011)
        at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1106)
        at java.lang.Thread.run(Unknown Source)



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

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