createStatement出错,该如何处理
createStatement出错
我的代码在其他电脑上可以用,但本机上就出现下面的错误,是哪里的错误?
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把你jsp中的代码贴出来看看。。。
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完事了散分吧。
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一看就知道是connection为null
我的异常网推荐解决方案:An exception occurred processing JSP page,http://www..net/j2se/33144.html
我的异常网推荐解决方案:The server encountered an internal error () that prevented it from fulfilling this request.,http://www..net/java-web/317.html
我的代码在其他电脑上可以用,但本机上就出现下面的错误,是哪里的错误?
- XML code
HTTP Status 500 - -------------------------------------------- type Exception report message 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 /zqwu/stinfos.jsp at line 28 25: catch(SQLException e){ 26: out.println("Connection database fail!"); 27: } 28: Statement stmt=conn.createStatement(); 29: ResultSet result=stmt.executeQuery("select * from studentsinfo"); 30: %> 31: <p></p> Stacktrace: org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:521) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:430) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) root cause java.lang.NullPointerException org.apache.jsp.zqwu.stinfos_jsp._jspService(stinfos_jsp.java:81) 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:388) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) note The full stack trace of the root cause is available in the Apache Tomcat/6.0.33 logs.
------解决方案--------------------
把你jsp中的代码贴出来看看。。。
------解决方案--------------------
完事了散分吧。
------解决方案--------------------
一看就知道是connection为null
我的异常网推荐解决方案:An exception occurred processing JSP page,http://www..net/j2se/33144.html
我的异常网推荐解决方案:The server encountered an internal error () that prevented it from fulfilling this request.,http://www..net/java-web/317.html