我现在有两个程序 login.html 和verifylogin.jsp 程序 ,我以安装tomcat 和sql server2000
myeclipse7.0 建了一个工程,然后把login.html 和verifylogin.jsp 放在该工程的 WEB/INF 下。
然后放在Tomcat的webapps文件夹下,在浏览器中输入http://localhost:8080/youjsp/WebRoot/WEB-INF/verifylogin.jsp
回车后产生的结果,能帮我解释一下吗?HTTP Status 500 - --------------------------------------------------------------------------------type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception org.apache.jasper.JasperException: An exception occurred processing JSP page /WebRoot/WEB-INF/verifylogin.jsp at line 6865: if (stmt != null) {
66: stmt.close();
67: }
68: conn.close();
69: } catch (SQLException sqlExc) {
70: sqlExc.printStackTrace();
71: }
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:505)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:416)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
root cause java.lang.NullPointerException
org.apache.jsp.WebRoot.WEB_002dINF.verifylogin_jsp._jspService(verifylogin_jsp.java:125)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.20 logs.
myeclipse7.0 建了一个工程,然后把login.html 和verifylogin.jsp 放在该工程的 WEB/INF 下。
然后放在Tomcat的webapps文件夹下,在浏览器中输入http://localhost:8080/youjsp/WebRoot/WEB-INF/verifylogin.jsp
回车后产生的结果,能帮我解释一下吗?HTTP Status 500 - --------------------------------------------------------------------------------type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception org.apache.jasper.JasperException: An exception occurred processing JSP page /WebRoot/WEB-INF/verifylogin.jsp at line 6865: if (stmt != null) {
66: stmt.close();
67: }
68: conn.close();
69: } catch (SQLException sqlExc) {
70: sqlExc.printStackTrace();
71: }
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:505)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:416)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
root cause java.lang.NullPointerException
org.apache.jsp.WebRoot.WEB_002dINF.verifylogin_jsp._jspService(verifylogin_jsp.java:125)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.20 logs.
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66: stmt.close();
67: }
68: conn.close();
也用if语句判断一下,试试
第68行错了 if (stmt != null) {
stmt.close();
}
if(conn != null)
conn.close();
} catch (SQLException sqlExc) {
sqlExc.printStackTrace();
}