JAVA EE 之 JSP 创建注册界面

示例如下：

由以上知

我们所需文件类型： 分别为注册界面（regist.xhtml）和展示页面（show.xhtml）以及受管Bean（Bean.java）和一个自定义邮箱转换器（EmailConverter.java）。

    
        
        
        

        
        

        
        
       
    
    
        
            

                姓名
                

                    
                    
                
            
            
            

                学号
                

                    
                        
                        
                    
                    
                
            
                   
            

                性别
                

                    
                        
                                    
                    
                
            
            
            

                年龄
                

                    
                        
                    
                    
                
            
            
            

                手机号
                

                    
                        
                    
                    
                
            
            
            

                QQ邮箱
                

                    
                                        
                    @qq.com
                    
                
            
            
            

                

                    
                
            
            
    

    
        
        
        

        
        

        
        
       
    
    
        
            

                姓名
                

                                        
                
            
            
            

                学号
                

                    
                
            
                   
            

                性别
                

                    
                
            
            
            

                年龄
                

                    
                
            
            
            

                手机号
                

                    
                
            
            
            

                QQ邮箱
                

                    
                
            
            
            
    

package com.niit.bean;

import javax.faces.application.FacesMessage;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.validator.ValidatorException;

@ManagedBean(name = "bean1")
@SessionScoped

public class Bean1 {
    private String username;
    private String sno;
    private String gender;
    private String age;
    private String phone;
    private String email;

    public Bean1() {
        gender="M";
    }

    
    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getSno() {
        return sno;
    }

    public void setSno(String sno) {
        this.sno = sno;
    }

    public String getGender() {
        return gender;
    }

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

    public String getAge() {
        return age;
    }

    public void setAge(String age) {
        this.age = age;
    }
    

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }


    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        System.out.println("email :"+email);
        this.email = email;
    }
    
    //用户名验证
    public void validateName(FacesContext context, UIComponent component, Object value) throws ValidatorException {
         
         String data1 = (String)value;
         if(data1 !=null){
            if(data1.contains("！") || data1.contains("@") || data1.contains("#")||data1.contains("！ ")){
                 FacesMessage message1=new FacesMessage();
                 message1.setSummary("*不能输入非法字符");
                 throw new ValidatorException(message1);
             }
         }
    }
    
}

package com.niit.converter;

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.convert.FacesConverter;

@FacesConverter(value = "EmailConverter")
public class EmailConverter implements Converter{

    @Override
    public Object getAsObject(FacesContext context, UIComponent component, String value) {
        //去除字符间前后空格的        
        String data = value.trim();
        String email = data+"@qq.com";
        return email;
    }

    @Override
    public String getAsString(FacesContext context, UIComponent component, Object value) {
        return value.toString();
        
    }
    
    
}