javax.- servlet.jsp.JspException: Cannot find bean: "Abteilungen" in jedem Bereich
JSP PAGE
<%--
Document : DeptListing
Created on : 20-Aug-2011, 10:12:36
Author : LenasalonM01
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<%@taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>
<%@taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<%@taglib uri="http://struts.apache.org/tags-logic" prefix="logic"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Department listing</title>
</head>
<body>
<%-- <jsp:include page="Header.jsp">
<jsp:param name="header" value="Dept Listing"/>
</jsp:include>--%>
<table>
<logic:iterate id="dept" name="departments">
<tr>
<td>
<bean:write name="dept" property="name" />
</td>
<td>
<html:link page="/listEmployees.do"
paramId="deptid" paramName="dept"
paramProperty="id">
show
</html:link>
</td>
</tr>
</logic:iterate>
</table>
<%@include file="/Footer.jsp" %>
</body>
</html>
FORM-BEAN
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com.hrms;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
/**
*
* @author LenasalonM01
*/
public class EmployeeForm extends org.apache.struts.action.ActionForm {
public static final String EDIT_MODE = "edit";
public static final String DELETE_MODE = "delete";
public static final String ADD_MODE = "add";
String action;
Employee employee;
public EmployeeForm() {
employee = new Employee();
action = EmployeeForm.ADD_MODE;
}
public Employee getEmployee() {
return employee;
}
public void setEmployee(Employee employee) {
this.employee = employee;
}
/**
* Returns the action.
* @return String
*/
public String getAction() {
return action;
}
/**
* Sets the action.
* @param action The action to set
*/
public void setAction(String action) {
this.action = action;
}
/**
* @see org.apache.struts.action.ActionForm#reset(ActionMapping,
HttpServletRequest)
*/
/**
*
*/
@Override
public void reset(ActionMapping mapping,
HttpServletRequest request) {
this.employee = new Employee();
this.action = ADD_MODE;
}
/**
* This is the action called from the Struts framework.
* @param mapping The ActionMapping used to select this instance.
* @param request The HTTP Request we are processing.
* @return
*/
@Override
public ActionErrors validate(ActionMapping arg0, HttpServletRequest arg1) {
ActionErrors errors = new ActionErrors();
if ((employee.getFirstName() == null)
|| (employee.getFirstName().length() < 3)) {
errors.add("FirstName", new ActionMessage("error.employee.firstname"));
}
return errors;
}
}
ABTEILUNG AKTION
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com.hrms;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
/**
*
* @author LenasalonM01
*/
public class ListDepartmentsAction extends org.apache.struts.action.Action {
/* forward name="success" path="" */
/**
* This is the action called from the Struts framework.
* @param mapping The ActionMapping used to select this instance.
* @param form The optional ActionForm bean for this request.
* @param request The HTTP Request we are processing.
* @param response The HTTP Response we are processing.
* @throws java.lang.Exception
* @return
*/
@Override
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
request.setAttribute("departments", Dept.getDepartments());
return mapping.findForward("listing");
}
}
STRUTS-CONFIG
<action input="/"
name="EmployeeForm"
path="/listEmployees"
scope="request"
validate="true"
type="action.ListEmployeesAction">
<forward name="listing" path="/EmployeeListing.jsp"/>
</action>
<action path="/listDepartments"
scope="request"
name="departments"
validate="true"
type="action.ListDepartmentsAction">
<forward name="listing" path="/DeptListing.jsp"/>
</action>
<action path="/editEmployee"
type="action.EditEmployeeAction"
name="employeeForm"
attribute="employeeForm"
input="/EmployeeForm.jsp"
scope="request"
validate="true">
<forward name="form" path="/EmployeeForm.jsp"/>
</action>
<action input="/EmployeeForm.jsp"
name="employeeForm"
action="action.UpdateEmployeeAction"
path="/updateEmployee"
scope="request"
type="action.UpdateEmployeeAction">
<forward name="listing" path="/EmployeeListing.jsp"/>
</action>
<!-- <action input="/employee_registration.jsp" name="loginform" path="/login" type="com.hrms.formlogin">
<forward name="employee_reg" path="/register_employee.jsp"/>
</action>-->
</action-mappings>
InformationsquelleAutor mykey | 2011-08-22
Schreibe einen Kommentar
Du musst angemeldet sein, um einen Kommentar abzugeben.
Was passiert, wenn Sie entweder (a) benennen Sie die form-bean config (der "name" - Attribut in dem action-mapping-config) oder (b) benennen Sie die Abteilungen Sammlung, um etwas anderes als die form-bean name?
InformationsquelleAutor Dave Newton
Yeah, dass ist richtig, wenn Sie drucken, dass bestimmte Daten oder Eigentum in der jsp dann müssen Sie, insbesondere die Bohne, dass Sie config in der struts-config.xml Datei.
und auf diese Weise können Sie den Zugriff auf diese Daten.
beispielsweise
in der struts-config.xml
und in die jsp-Seite für die Druckdaten.
eample
InformationsquelleAutor Krishna