I'm new to JSP and still getting used to the environment.
I'm using FreeBSD5.4, Jakarta tomcat 5.5.9 with JDK 1.5.0_p2
When I try to use Beans it comes up with the error:
*type* Exception report
*message*
*description* _The server encountered an internal error () that
prevented it from fulfilling this request._
*exception*
javax.servlet.ServletException: UserData (Unsupported major.minor version 49.0)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
*root cause*
java.lang.UnsupportedClassVersionError: UserData (Unsupported major.minor
version 49.0)
java.lang.ClassLoader.defineClass0(Native Method)
java.lang.ClassLoader.defineClass(ClassLoader.java:537)
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1629)
org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:850)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1299)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1181)
org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1210)
org.apache.jasper.compiler.Node$UseBean.accept(Node.java:1116)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Generator.generate(Generator.java:3270)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:189)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:286)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:556)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:293)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
*note* _The full stack trace of the root cause is available in the
Apache Tomcat/5.5.9 logs._
Here are my files:
<!--First File-->
<html><body>
<form method=post action="SaveName.jsp">
What's your name? <input type=text name=username size=20><br>
What's your email address? <input type=text name=email size=20><br>
What's your age? <input type=text name=age size=3><br>
<input type=submit>
</form>
</body></html>
<!--Second File-->
<jsp:useBean id="user" class="UserData" scope ="session" />
<jsp:setProperty name="user" property="*" />
<HTML><BODY>
<A HREF="NextPage.jsp">Continue</A>
</BODY></HTML>
//UserData.java
import java.io.Serializable;
public class UserData implements Serializable {
String username;
String email;
int age;
public void setUsername( String value ) {
username = value;
}
public void setEmail( String value ) {
email = value;
}
public void setAge( int value ) {
age = value;
}
public String getUsername() { return username; }
public String getEmail() { return email; }
public int getAge() { return age; }
}
<!--Last file-->
<jsp:useBean id="user" class="UserData" scope="session" />
<html><body>
You entered<br>
Name: <%= user.getUsername() %> <br>
Email: <%= user.getEmail() %><br>
Age: <%= user.getAge() %><br>
</body></html>
My environment variables are:
JAVA_HOME=/usr/local/jdk1.5.0; export JAVA_HOME
CATALINE_HOME="/usr/local/jakarta-tomcat5.5"; export CATALINE_HOME
CATALINE_BASE="/usr/local/jakarta-tomcat5.5"; export CATALINE_BASE
CATALINE_TMPDIR="/usr/local/jakarta-tomcat5.5/temp"; export CATALINE_TMPDIR
CLASSPATH="/usr/local/jakarta-tomcat5.5/webapps/ROOT/jsptut/WEB-INF/classes:/usr/local/jakarta-tomcat5.5/webapps/ROOT/WEB-INF/classes:/usr/local/jakarta-tomcat5.5/common/lib/servlet-api.jar:/usr/local/jakarta-tomcat5.5/common/lib/jsp-api.jar:.";export
CLASSPATH
I've compiled UserData.java with the following command:
$ javac UserData.java
and stored the class in the directory:
/usr/local/jakarta-tomcat5.5/webapps/ROOT/WEB-INF/classes
Why am I getting this error?
How do I get a simple javabean example working with JSP under tomcat?
-- Michael
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