基本校验

今天药忘吃喽~ 2022-05-15 03:57 109阅读 0赞

### 基本校验 ###

跳过校验的三种方式：  
1. 使用注解@SkipValidation  
2. 更改校验方法名validateReg  
3. 使用xml进行配置

<interceptor-ref name="defaultStack">
    <param name="validation.excludeMethods">input,back,cancel,browse,toregview</param>
    </interceptor-ref>

### 方式一 ###

action：

package com.kexin.action;
    
    import org.apache.struts2.interceptor.validation.SkipValidation;
    
    import com.kexin.bean.User;
    import com.opensymphony.xwork2.ActionSupport;
    import com.opensymphony.xwork2.ModelDriven;
    
    public class RegisterAction extends ActionSupport implements ModelDriven<User>{
        
    
        private static final long serialVersionUID = 1L;
        private User user = new User();
        @Override
        public User getModel() {
            return this.user;
        }
        public String reg(){
            System.out.println(this.user.getName());
            return SUCCESS;
        }
        //添加注解以跳过校验
        @SkipValidation
        public String toregview(){
            return "toregview";
        }
        /**
         * 校验方法
         * 除了添加注解跳过校验之外还可以在校验方法上实现，比如validateReg或validateDoReg都可以实现只在reg方法之前进行校验
         */
        public void validate(){
            if(this.user.getName()==null||this.user.getName().equals("")){
                addFieldError("name", "用户名不能为空");
            }
        }
    }

<action name="registerAction_*" class="com.kexin.action.RegisterAction" method="{1}">
                <result name="success">/index.jsp</result>
                <result name="error">/first.jsp</result>
                <result name="toregview">/first.jsp</result>
                <result name="input">/first.jsp</result>
            </action>

<h3>测试基本校验(注解跳过校验)</h3>
        <div>
            <s:form action="registerAction_reg.do" method="post">
                <s:textfield name="name" label="UserName"/>
                <s:textfield name="id" label="UserId"/>
                <s:submit/>
            </s:form>
        </div>

### 方式二 ###

基于XML的验证：

在进行验证的第二个方法是通过将一个xml文件的动作类。Struts2的基于XML验证的验证提供了更多的选择，如电子邮件验证，整数范围验证，表单验证字段，表达式验证，正则表达式验证，需要验证，验证所需的字符串，字符串长度的验证等。

XML文件需要被命名为’\[action-class\]’-validation.xml或者’\[action-class\]’-‘\[action in struts.xml\]’-validation.xml,保存在CLASSPATH 挨着类文件

<?xml version="1.0" encoding="UTF-8" ?>
     <!DOCTYPE validators PUBLIC
            "-//Apache Struts//XWork Validator 1.0.3//EN"
            "http://struts.apache.org/dtds/xwork-validator-1.0.3.dtd">
    
    
    
    <validators>
        
        <field name="customer.username">
            <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>
                <param name="trim">true</param>
                <message>用户名必须为${minLength}至${maxLength}个字符！,当前为${customer.customername}
                </message>
            </field-validator>
        </field>
        
        <field name="customer.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="trim">true</param>
                <param name="minLength">6</param>
                <param name="maxLength">20</param>
                <message>密码必须为${minLength}至${maxLength}个字符,当前为${customer.password}
                </message>
            </field-validator>
        </field>
    
        
        <field name="customer.password1">
            <field-validator type="required">
                <message>密码不能为空!</message>
            </field-validator>
            <field-validator type="fieldexpression">
                <param name="expression">customer.password==customer.password1</param>
                <message>两次密码不一致！</message>
            </field-validator>
        </field>
    
        <field name="customer.email">
            <field-validator type="requiredstring">
                <param name="trim">true</param>
                <message>邮箱不能为空</message>
            </field-validator>
            <field-validator type="email">
                <param name="trim">true</param>
                <message>邮箱格式不正确!</message>
            </field-validator>
        </field>
    </validators>