JSF UI组件示例

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2023-03-14

JSF提供内置组件来创建网页。在这里，我们通过JSF组件来创建一个用户注册。按照以下步骤创建表单。

打开 NetBean8.2，创建一个名称为：ui-components-example的JSF工程，然后按以下步骤添加相应文件和代码。

1)创建用户注册表

文件： index.xhtml 的代码如下所示 -

<!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://xmlns.jcp.org/jsf/html"  
      xmlns:f="http://xmlns.jcp.org/jsf/core">  
    <h:head>  
        <title>用户注册表单</title>  
    </h:head>  
    <h:body>  
        <h:form id="form">  
            <table>  
                <tr>  
                    <td><h:outputLabel for="username">用户名：</h:outputLabel></td>  
                    <td><h:inputText id="name-id" value="#{user.name}"/></td>  
                </tr>  
                <tr>  
                    <td><h:outputLabel for="email">Email：</h:outputLabel></td>  
                    <td><h:inputText id="email-id" value="#{user.email}"/></td>  
                </tr>  
                <tr>  
                    <td><h:outputLabel for="password">密码：</h:outputLabel></td>  
                    <td><h:inputSecret id="password-id" value="#{user.password}"/></td>  
                </tr>  

                <tr>  
                    <td><h:outputLabel for="gender">性别：</h:outputLabel></td>  
                    <td><h:selectOneRadio value="#{user.gender}">  
                            <f:selectItem itemValue="男" itemLabel="男" />  
                            <f:selectItem itemValue="女" itemLabel="女" />  
                        </h:selectOneRadio></td>  
                </tr>  
                <tr><td><h:outputLabel for="address">地址：</h:outputLabel></td>  
                    <td><h:inputTextarea value="#{user.address}" cols="50" rows="5"/></td></tr>  
            </table>  
            <h:commandButton value="提交" action="response.xhtml"></h:commandButton>  
        </h:form>  
    </h:body>  
</html>

2)创建托管Bean

文件： User.java 的代码如下所示 -

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package com.yiibai;

/**
 *
 * @author Maxsu
 */
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;

@ManagedBean
@RequestScoped
public class User {

    String name;
    String email;
    String password;
    String gender;
    String address;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }
}

3)创建输出页面

文件： response.xhtml 的代码如下所示 -

<!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://xmlns.jcp.org/jsf/html"  
      xmlns:f="http://xmlns.jcp.org/jsf/core">  
    <h:head>  
        <title>User Details</title>  
    </h:head>  
    <h:body>  
        <h2><h:outputText value="您好, #{user.name}"/></h2>  
        <h4><h:outputText value="You have Registered with us Successfully, Your Details are The Following."/></h4>  
        <table>  
            <tr>  
                <td><b>Email: </b></td>  
                <td><h:outputText value="#{user.email}"/><br/></td>  
            </tr>  
            <tr>  
                <td><b>密码:</b></td>  
                <td><h:outputText value="#{user.password}"/><br/></td>  
            </tr>  
            <tr>  
                <td><b>性别</b></td>  
                <td><h:outputText value="#{user.gender}"/><br/></td>  
            </tr>  
            <tr>  
                <td><b>地址 </b></td>  
                <td><h:outputText value="#{user.address}"/></td>  
            </tr>  
        </table>  
    </h:body>  
</html>

4)运行应用程序

输出的用户注册表(首页)，如下所示 -

提交表单后，JSF会将response.xhtml文件作为结果网页。响应页面结果如下所示 -