I have created a simple java project to draw the bar chart taking certain values from text file and named it as ChartAdvancedBar.java, now i need to invoke it when I press a button in JSP file.
I have added this java project within the libraries of my web project. How can I import this java project to one of my JSP files?
I have added a line:
<%@page import="ChartAdvancedBar.*"%>
But it is giving an error that ChartAdvancedBar doesn't found.
The issue you're encountering is likely because JSP pages need to reference the correct package structure. Here are a few steps you can follow to import and use your ChartAdvancedBar class in your JSP file:
Check the Package Name: Ensure that ChartAdvancedBar.java is part of a package. For example, if it's in the package com.example.chart, your import statement in the JSP should reflect this.
Correct the Import Statement: Update the import statement in your JSP file to match the package name. For example:
jsp
<%@page import="com.example.chart.ChartAdvancedBar"%>
Place the Java Class in WEB-INF: Ensure that your Java class file is in the WEB-INF/classes directory of your web project. This is where JSP can access the compiled classes.
Use the Class in JSP: Once the import is correct, you can create an instance of the class and call its methods in your JSP file. For example:
jsp
<%
ChartAdvancedBar chart = new ChartAdvancedBar();
chart.drawChart();
%>
Web Project Setup: Make sure your Java project is properly included in the build path of your web project. In NetBeans, you can check this by right-clicking on your web project, going to Properties, and ensuring the Libraries section includes your Java project.