struts2--基于xml文件的验证器

悠悠 2024-02-18 14:12 32阅读 0赞

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![Center 1][]

结果：

![Center 2][]

登录界面：

Action:

package com.action;
    
    import com.bean.User;
    import com.opensymphony.xwork2.ActionSupport;
    
    public class LoginAction extends ActionSupport{
     private User user;
     public String execute() {
    	return SUCCESS;
    }
    public User getUser() {
    	return user;
    }
    
    public void setUser(User user) {
    	this.user = user;
    }
     
    }

struts.xml:

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"
        "http://struts.apache.org/dtds/struts-2.1.7.dtd">
    <struts>
      <package name="default" namespace = "/" extends = "struts-default">
        <action name = "login" class = "com.action.LoginAction">
           <result>/ok.jsp</result>
           <result name = "input">/login.jsp</result>
        </action>
      </package>
    </struts>

校验器LoginAction.validation.xml配置：放在与Action类同一目录下

<?xml version="1.0" encoding="UTF-8"?>
      <!DOCTYPE validators PUBLIC
      		"-//OpenSymphony Group//XWork Validator 1.0.3//EN"
      		"http://www.opensymphony.com/xwork/xwork-validator-1.0.3.dtd">
    
    <validators>
      <field name  = "user.username">
        <field-validator type = "requiredstring">
           <param name = "doTrim">true</param>
           <message>请输入姓名</message>
        </field-validator>
        <field-validator type = "regex">
           <param name = "expression"><![CDATA[(\w{4,20})]]></param>
           <message>您输入的姓名只能是字母和数字，且长度在4到20之间</message>
        </field-validator>
      </field>
      
      <field name = "user.password">
        <field-validator type = "requiredstring">
           <param name = "doTrim">true</param>
           <message>请输入密码</message>
        </field-validator> 
        <field-validator type = "regex">
           <param name = "expression"><![CDATA[(\w{6})]]></param>
           <message>您输入的姓名只能是字母和数字，且长度为6</message>
        </field-validator> 
      </field>
      
        <field name = "user.tel">
        <field-validator type = "requiredstring">
           <param name = "doTrim">true</param>
           <message>请输入电话号码</message>
        </field-validator> 
        <field-validator type = "regex">
           <param name = "expression"><![CDATA[(^1[3578]\d{9}$)]]></param>
           <message>您输入的格式不正确</message>
        </field-validator> 
      </field>
      
       <field name = "user.age">
        <field-validator type = "int">
           <param name = "min">1</param>
           <param name = "max">100</param>
           <message>请输入您的真实年龄</message>
        </field-validator> 
      </field>
      
       <field name = "user.birthday">
        <field-validator type = "date">
           <param name = "min">1990-01-01</param>
           <param name = "max">2020-01-01</param>
           <message>请输入正确的生日</message>
         </field-validator> 
      </field>
    </validators>

输出：

[Center]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/4550d97e3cd440479e11595175327479.png
[Center 1]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/1796e67791414eca80b6056c2ab2a4a8.png
[Center 2]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/151ee90487a847debcd12dbb89dc4968.png