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私はJSFの初心者です。JSFのチュートリアルをステップバイステップで実行しましたが、実行するとManagedBeanからxhtmlページにデータを取得できません。私が作成しました。JSFのManagedBeanからデータを取得できません
UserData.java
package com.practise.test;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
@ManagedBean(name = "userData", eager = true)
@SessionScoped
public class UserData implements Serializable {
private static final long serialVersionUID = 1L;
private String name;
private String dept;
private int age;
private double salary;
private static final ArrayList<Employee> employees
= new ArrayList<Employee>(Arrays.asList(
new Employee("John", "Marketing", 30,2000.00),
new Employee("Robert", "Marketing", 35,3000.00),
new Employee("Mark", "Sales", 25,2500.00),
new Employee("Chris", "Marketing", 33,2500.00),
new Employee("Peter", "Customer Care", 20,1500.00)
));
public ArrayList<Employee> getEmployees() {
return employees;
}
public String addEmployee() {
Employee employee = new Employee(name,dept,age,salary);
employees.add(employee);
return null;
}
public String deleteEmployee(Employee employee) {
employees.remove(employee);
return null;
}
public String editEmployee(Employee employee){
employee.setCanEdit(true);
return null;
}
public String saveEmployees(){
//set "canEdit" of all employees to false
for (Employee employee : employees){
employee.setCanEdit(false);
}
return null;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDepartment() {
return dept;
}
public void setDepartment(String department) {
this.dept = department;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public double getSalary() {
return salary;
}
public void setSalary(double salary) {
this.salary = salary;
}
}
Employee.java
package com.practise.test;
public class Employee {
private String name;
private String department;
private int age;
private double salary;
private boolean canEdit;
public Employee (String name,String department,int age,double salary){
this.name = name;
this.department = department;
this.age = age;
this.salary = salary;
canEdit = false;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDepartment() {
return department;
}
public void setDepartment(String department) {
this.department = department;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public double getSalary() {
return salary;
}
public void setSalary(double salary) {
this.salary = salary;
}
public boolean isCanEdit() {
return canEdit;
}
public void setCanEdit(boolean canEdit) {
this.canEdit = canEdit;
}
}
home.xhtml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core">
<h:head>
<title>JSF tutorial</title>
<h:outputStylesheet library="css" name="styles.css" />
</h:head>
<h:body>
<h2>DataTable Example</h2>
<h:form>
<h:dataTable value="#{userData.employees}" var="employee"
styleClass="employeeTable"
headerClass="employeeTableHeader"
rowClasses="employeeTableOddRow,employeeTableEvenRow">
<h:column>
<f:facet name="header">Name</f:facet>
#{employee.name}
</h:column>
<h:column>
<f:facet name="header">Department</f:facet>
#{employee.department}
</h:column>
<h:column>
<f:facet name="header">Age</f:facet>
#{employee.age}
</h:column>
<h:column>
<f:facet name="header">Salary</f:facet>
#{employee.salary}
</h:column>
</h:dataTable>
<h3>Add Employee</h3>
<hr/>
<table>
<tr>
<td>Name :</td>
<td><h:inputText size="10" value="#{userData.name}" /></td>
</tr>
<tr>
<td>Department :</td>
<td><h:inputText size="20" value="#{userData.dept}" /></td>
</tr>
<tr>
<td>Age :</td>
<td><h:inputText size="5" value="#{userData.age}" /></td>
</tr>
<tr>
<td>Salary :</td>
<td><h:inputText size="5" value="#{userData.salary}" /></td>
</tr>
<tr>
<td> </td>
<td><h:commandButton value="Add Employee"
action="#{userData.addEmployee}" /></td>
</tr>
</table>
</h:form>
</h:body>
</html>
ことができる人、彼私は、正確な問題とそれを克服する方法を理解するために私を出す。事前に感謝します。