package comscqemsutil;import javasqlConnection;import javasqlPreparedStatement;import javasqlResultSet;import javasqlSQLException;public class jdbce private Connection conn; private PreparedSta
There could be several reasons why the "select" action is displaying a blank page. Here are a few possible reasons and how to troubleshoot them:
-
Check if the DAO implementation is returning any data:
- Make sure that the
Allemp()method in theemsdaoimplclass is properly implemented and retrieving the data from the database. - Verify that the
datautilclass is correctly mapping the result set to theemployeeobjects. - Debug the code by adding print statements or using a debugger to see if any data is retrieved from the database.
- Make sure that the
-
Check if the servlet is properly forwarding the data to the JSP page:
- Ensure that the servlet is calling the
selectEmployeemethod and retrieving the list of employees. - Verify that the JSP page is properly displaying the data received from the servlet.
- Debug the code by adding print statements or using a debugger to see if the list of employees is being passed to the JSP page.
- Ensure that the servlet is calling the
-
Check if the JSP page is properly displaying the data:
- Review the HTML table structure in the JSP page and ensure that it is correctly formatted.
- Check if any CSS or JavaScript code in the JSP page is causing display issues.
- Debug the code by adding print statements or using a browser developer tool to inspect the HTML output of the JSP page.
By troubleshooting these areas, you should be able to identify the cause of the blank page issue and resolve it accordingly
原文地址: https://www.cveoy.top/t/topic/iOBu 著作权归作者所有。请勿转载和采集!