MyAccount.class
package test.four;
import java.io.Serializable;
public interface MyAccount extends Serializable{
public int add(int i,int j) throws Exception;
public int getResult() throws Exception;
}
MyAccountBean.class
package test.four;
import javax.ejb.Local;
import javax.ejb.Stateful;
import org.jboss.annotation.ejb.LocalBinding;
@SuppressWarnings("serial")
@Stateful
@Local({MyAccount.class})
@LocalBinding(jndiBinding="test/MyAccountBean")
public class MyAccountBean implements MyAccount {
private int add_falg=0;
private int total_flag=0;
public int add(int i, int j) throws Exception {
this.add_falg=i+j;
this.total_flag+=this.add_falg;
return this.add_falg;
}
public int getResult() throws Exception{
return this.total_flag;
}
}
jsp client
<%@ page contentType="text/html; charset=iso"%>
<%@ page import="test.four.MyAccount,javax.naming.*"%>
<%
Properties props = new Properties();
props.setProperty("java.naming.factory.initial",
"org.jnp.interfaces.NamingContextFactory");
props.setProperty("java.naming.provider.url", "localhost:1099");
props.setProperty("java.naming.factory.url.pkgs",
"org.jboss.naming");
InitialContext ctx = new InitialContext(props);
try {
MyAccount A =
ctx.lookup("MyAccountBean/local");
out.println("A.Add() Result
is?"+ A.add(1,1));
out.println("A.getResult() result is?"+ A.getResult());
} catch (Exception e) {
e.printStackTrace();
out.println(e.getMessage());
}
%>
code end
when I visit website
http://localhst:8080/test/four.jsp,java.lang.ClassCastException was threw.
this exception detail:
java.lang.ClassCastException: $Proxy157
17:33:13,447 ERROR [STDERR] at
org.apache.jsp.four_jsp._jspService(four_jsp.java:69)
17:33:13,447 ERROR [STDERR] at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
17:33:13,447 ERROR [STDERR] at
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
17:33:13,447 ERROR [STDERR] at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
17:33:13,457 ERROR [STDERR] at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
17:33:13,457 ERROR [STDERR] at
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
17:33:13,457 ERROR [STDERR] at
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
17:33:13,457 ERROR [STDERR] at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
17:33:13,457 ERROR [STDERR] at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
17:33:13,457 ERROR [STDERR] at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
17:33:13,457 ERROR [STDERR] at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
17:33:13,457 ERROR [STDERR] at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
17:33:13,457 ERROR [STDERR] at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
17:33:13,457 ERROR [STDERR] at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
17:33:13,457 ERROR [STDERR] at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
17:33:13,457 ERROR [STDERR] at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
17:33:13,457 ERROR [STDERR] at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
17:33:13,457 ERROR [STDERR] at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
17:33:13,457 ERROR [STDERR] at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
17:33:13,457 ERROR [STDERR] at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
17:33:13,457 ERROR [STDERR] at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
17:33:13,457 ERROR [STDERR] at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
17:33:13,457 ERROR [STDERR] at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
17:33:13,457 ERROR [STDERR] at
org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
17:33:13,457 ERROR [STDERR] at java.lang.Thread.run(Thread.java:595)
pls help me
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