struts2验证框架后台验证用户注册

经过这两天的摸索,对验证框架还是有了一定的认识,纠正一下之前的错误,不管验证正确与否,都一定会执行action中的validate函数,把完整的后台验证用户注册贴出来了:

 

在项目根目录,也就是struts.xml相同的位置添加一个validators.xml,用来添加自定义规则.我只添加了一条自定义的规则,用来验证密码提示问题是否存在与相关数据库中,避免恶意提交(虽然我觉得也可能没有必要,但为了学一下怎么自定义验证规则,我就多此一举了):

 

自定义规则的配置文件:validators.xml

 

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE validators PUBLIC
        "-//OpenSymphony Group//XWork Validator Config 1.0//EN"
        "http://www.opensymphony.com/xwork/xwork-validator-config-1.0.dtd">
        
<validators>  	
  	<validator name="valueintable" class="com.validators.ValueInSpecificTable"/>
</validators>

 

相应的类:ValueInSpecificTable

 

package com.validators;

import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;

import com.opensymphony.xwork2.validator.ValidationException;
import com.opensymphony.xwork2.validator.validators.FieldValidatorSupport;

public class ValueInSpecificTable extends FieldValidatorSupport{
	
	private String table;
	
	public String getTable() {
		return table;
	}

	public void setTable(String table) {
		this.table = table;
	}

	public void validate(Object object) throws ValidationException {	
		String fieldName = getFieldName();
		String value = (String)this.getFieldValue(fieldName, object);
		
		SessionFactory factory = new Configuration().configure().buildSessionFactory();
		Session session = factory.openSession();
		Transaction transaction = session.beginTransaction();
		Query query = session.createQuery("from " + table + " where problemContent = '" + value + "'");
		transaction.commit();
		
		if(query.list().isEmpty())
		{
			System.out.println("WARN: " + value + "is not in table: " + table);
			addFieldError(fieldName, object);
		}
		
		session.close();
    }
}

 

Action的验证配置文件(和Action放在相同目录下):UserRegisterSaveAction-vaidation.xml

 

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE validators PUBLIC 
	"-//OpenSymphonyGroup//XWorkValidator1.0.2//EN" 
	"http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">

	<validators>  
    	<field name="register.user_id"> 
    		<field-validator type="requiredstring">  
    			<param name="trim">true</param>  
    			<message>用户名不能为空</message>  
   			</field-validator>
    		
        	<field-validator type="stringlength">
  				<param name="minLength">4</param>  
    			<param name="maxLength">16</param>
  				<message>用户名长度应在4到16之间</message>
 			</field-validator>
    	</field>
    	
    	<field name="register.password">   
        	<field-validator type="requiredstring">  
    			<param name="trim">true</param>  
    			<message>密码不能为空</message>  
   			</field-validator>  
    
   			<field-validator type="stringlength">  
    			<param name="minLength">6</param>  
    			<param name="maxLength">18</param>  
    			<message>密码长度应在6到18个字符之间</message>  
   			</field-validator>   
    	</field>      
    	
    	<field name="register.pwd_repeat">   
        	<field-validator type="fieldexpression">
        		<param name="fieldName">register.password</param>
        		<param name="fieldName">register.pwd_repeat</param>
        		<param name="expression"><![CDATA[register.password == register.pwd_repeat]]></param>
         		<message>密码必须和确认密码相等</message>
   			</field-validator> 
    	</field> 
    	
    	<field name="register.problem_content">   
        	<field-validator type="valueintable">   
        		<param name="table">PromptProblem</param>
            	<message>请输入信息</message>   
        	</field-validator>
    	</field>      
    	
    	<field name="register.answer">   
        	<field-validator type="requiredstring">  
    			<param name="trim">true</param>  
    			<message>密码提示答案不能为空</message>  
   			</field-validator>
    		
        	<field-validator type="stringlength">
  				<param name="minLength">2</param>  
    			<param name="maxLength">10</param>
  				<message>密码提示答案长度应在2到10之间</message>
 			</field-validator>   
    	</field>      
    	
    	<field name="register.nickname">   
        	<field-validator type="requiredstring">  
    			<param name="trim">true</param>  
    			<message>昵称不能为空</message>  
   			</field-validator>
    		
        	<field-validator type="stringlength">
  				<param name="minLength">2</param>  
    			<param name="maxLength">10</param>
  				<message>昵称长度应在2到10之间</message>
 			</field-validator>   
    	</field>      
    	
    	<field name="register.phone">   
        	<field-validator type="regex">   
        		<param name="fieldName">register.phone</param>
        		<param name="trim">true</param>
            	<param name="expression"><![CDATA[(((13[0-9]{1})|159|186|188|189|(15[0-9]{1}))+\d{8})]]></param>
            	<message>请输入正确的手机号码</message>  
        	</field-validator>
    	</field>  
    	
    	<field name="register.email">   
        	<field-validator type="email">   
            	<message>请输入正确的邮箱地址</message>                        
        	</field-validator>   
    	</field>          
    	
	</validators>      
	

 

 感觉Struts2的验证框架还是蛮好用的,就是刚开始学的时候会比较烦一点,网上很多Struts1框架的配置方法堂而皇之地冠以Struts2的名号,相当无语~~~