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I have written a sample JSP file in Eclipse and a Java file and was trying to call the Java class inside my JSP but it is not working. The code of the JAVA file is as follows:
TestJava.jva
public class TestJava {
public void test(String msg)
{
System.out.println("My name is "+msg);
}
}
The Javafile is located at src folder. My JSP file test.jsp is as follows:
test.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>My First JSP with JAVA</title>
</head>
<body>
<jsp:useBean id="link" scope="application" class = "TestJava" />
<% TestJava t=new TestJava();
t.test("Joy");
%>
</body>
</html>
It is giving error as "TestJava cannot be resolved to a type". I have studied other related posts in Stack Overflow but those approaches also did not work. Being new to JSP I cannot understand how to fix that error. So I am asking if anyone can help me to fix that problem.
Thank you.
462
You need a type declaration there.. something like Movie movie = (Movie) movies. get(i). The better thing to do is use Generics and define a type to the ArrayList (like ArrayList<Movie>()) or ...the best thing to do is to use EL and forget scriplets.
In JavaServer Pages (JSP) technology, a scriptlet is a piece of Java-code embedded in the HTML-like JSP code. The scriptlet is everything inside the <% %> tags. Between these the user can add any valid Scriptlet i.e. any valid Java Code. In AppleScript, a scriptlet is a small script.
A scriptlet tag is used to execute java source code in JSP. Syntax is as follows: <% java source code %>
In order to use class objects in java, you need to import classes first.
Pretty much the same with scriplets in jsp, here you import it via <%@ page %> scriplet tags.
<%@ page import="your.class*" %>
112
You have to write fully qualified name of your class in page directive
<%@ page import="fully qualified name of the class" %>
You need to import your class using <%@ page %>
In your case, import Test in your jsp page like this.
<%@ page import="yourpackagename.Test" %>
if you want to import multiple classes that are in different packages declare them like this.
<%@ page import="yourpackagename.Test,yourpackagename2.Test2" %>
Also, I highly suggest you put your Test class outside the default package, and put it in another package.
38
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