在jsf2中创建动态输入 [英] Creating dynamic inputs in jsf2
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问题描述
我想在jsf2的数据表中创建动态文本框，该表具有基于单击添加行按钮的文本框.我是jsf编程的新手.有人可以告诉我有关动态生成的基本示例.我已经读过ui:repeat和c:foreach，但是我需要一些实际的例子.
i want to create dynamic textbox in jsf2 in datatable having textboxes based on clicking add row button. Iam a newbie for jsf programming.Can someone tell me a basic example for dynamic for generation . I have read ui:repeatand c:foreach but i need some practical example.
推荐答案
为您的示例，
xhtml代码:
<?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>
</h:head>
<h:body>
<h:form id="form1">
<h:commandButton value="Add new Row" actionListener="#{myBean.addNewEmployee}"/>
<h:dataTable value="#{myBean.employeeList}" var="emp">
<h:column>
<f:facet name="header">
Employee Id
</f:facet>
#{emp.empId}
</h:column>
<h:column>
<h:inputText value="#{emp.empName}"/>
</h:column>
</h:dataTable>
</h:form>
</h:body>
</html>
jsf托管豆
@ManagedBean
@ViewScoped
public class MyBean implements Serializable {
List<Employee> employeeList;
public List<Employee> getEmployeeList() {
return employeeList;
}
public void setEmployeeList(List<Employee> employeeList) {
this.employeeList = employeeList;
}
public void addNewEmployee(ActionEvent event) {
employeeList.add(new Employee(employeeList.size(), null));
}
@PostConstruct
public void init() {
employeeList = new ArrayList<Employee>();
employeeList.add(new Employee(1, "Emp1"));
employeeList.add(new Employee(2, "Emp2"));
}
public MyBean() {
}
}
员工类(您可以使用您的实体类)
Employee Class(You can use your entity class)
public class Employee {
Integer empId;
String empName;
public Integer getEmpId() {
return empId;
}
public void setEmpId(Integer empId) {
this.empId = empId;
}
public String getEmpName() {
return empName;
}
public void setEmpName(String empName) {
this.empName = empName;
}
public Employee(Integer empId, String empName) {
this.empId = empId;
this.empName = empName;
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final Employee other = (Employee) obj;
if (this.empId != other.empId && (this.empId == null || !this.empId.equals(other.empId))) {
return false;
}
return true;
}
@Override
public int hashCode() {
int hash = 5;
hash = 41 * hash + (this.empId != null ? this.empId.hashCode() : 0);
return hash;
}
}
您可以直接使用上面的代码.而且我建议使用PrimeFaces组件进行高级操作
You can directly use above code. And also I suggest to use PrimeFaces component for advanced manipulations
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