javaBean 的问题》》(在线等) 构造函数不能有返回值,void也不行public void opendb() 应该为public opendb() 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 同意楼上~~还有就是public ResultSet executeQuery(String str)方法名要改一下~~ jimsons(路漫漫其修远兮) ***按你们的方法该了还是出错了。出错如javax.servlet.ServletException: Column not found org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:825) org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:758) org.apache.jsp.text_jsp._jspService(text_jsp.java:71) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) javax.servlet.http.HttpServlet.service(HttpServlet.java:802)root cause java.sql.SQLException: Column not found sun.jdbc.odbc.JdbcOdbcResultSet.findColumn(JdbcOdbcResultSet.java:1852) sun.jdbc.odbc.JdbcOdbcResultSet.getString(JdbcOdbcResultSet.java:413) org.apache.jsp.text_jsp._jspService(text_jsp.java:61) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) javax.servlet.http.HttpServlet.service(HttpServlet.java:802)大家给我看看啊。。我实在没有折了! javax.servlet.ServletException: Column not found是不是查的表里没这个字段名 用 kk=rs.getString(1); 这种语句尝试一下是不是字段名的错误 哪位高手给个myeclipse8.5开发struts的实例 jsp传参给本身jsp,出现中文乱码 <%%> JSP登录界面 hibernate一个小问题 怎么将jsp里table的数据导出成excel,给个完整的例子 一个jsp的bean,不知道为什么编译出错,指点一下啊 【Tomcat】在Eclipse中如何配置tomcat? jsp问题??? iframe嵌套服务器页面,怎么实现跨域 父页面与iframe页面的js函数互相调用,变量的相互访问 又一个session问题,有分! 用什么函数能把普通string型的字符转成ascii码?
还有就是public ResultSet executeQuery(String str)
方法名要改一下~~
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:825)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:758)
org.apache.jsp.text_jsp._jspService(text_jsp.java:71)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause java.sql.SQLException: Column not found
sun.jdbc.odbc.JdbcOdbcResultSet.findColumn(JdbcOdbcResultSet.java:1852)
sun.jdbc.odbc.JdbcOdbcResultSet.getString(JdbcOdbcResultSet.java:413)
org.apache.jsp.text_jsp._jspService(text_jsp.java:61)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)大家给我看看啊。。我实在没有折了!
kk=rs.getString(1);
这种语句尝试一下是不是字段名的错误