校验器实例-注册

我会带着你远行 2022-07-14 21:13 191阅读 0赞

**基于Struts2的注册校验器实例: **

index.jsp

action

public class LoginAction extends ActionSupport{
    	private String username;
    	public String getUsername() {
    		return username;
    	}
    
    	public void setUsername(String username) {
    		this.username = username;
    	}
    
    	public String getPassword() {
    		return password;
    	}
    
    	public void setPassword(String password) {
    		this.password = password;
    	}
    
    	public String getPassword01() {
    		return password01;
    	}
    
    	public void setPassword01(String password01) {
    		this.password01 = password01;
    	}
    
    	public int getAge() {
    		return age;
    	}
    
    	public void setAge(int age) {
    		this.age = age;
    	}
    
    	private String password;
    	private String password01;
    	private int age;  //当输入为空时会报错，要写个类型转换器处理
    
    	public String execute() throws Exception{
    		return "success";
    	}
    }

validation.xml

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE validators PUBLIC "//-Apache Struts//XWork Validator 1.0.2//EN" 
    "http://struts.apache.org/dtds/xwork-validator-1.0.2.dtd">
    <validators>
    	<field name="username">
    		<field-validator type="requiredstring">
    
    		<param name="trim">true</param>
    		<message>username为空!</message>
    		</field-validator>
    	</field>
    	
    	<field name="password">
    		<field-validator type="requiredstring">
    
    		<param name="trim">true</param>
    		<message>password为空!</message>
    		</field-validator>
    	</field>
    		
    	<field name="password01">
    		<field-validator type="requiredstring">
    
    		<param name="trim">true</param>
    		<message>password为空!</message>
    		</field-validator>
    		
    		<field-validator type="fieldexpression">
    		<param name="expression"><![CDATA[password01.equals(password)]]> </param>
    		<message>两次输入密码不同！</message>
    		</field-validator>
    	</field>
    	
    	<field name="age">
    		<field-validator type="int">
    		<param name="min">1</param>
    		<param name="max">150</param>
    		<message>必须在${min}到${max}之间</message>
    		</field-validator>
    	</field>
    	
    </validators>

struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
    <struts>
    	<package name="default" extends="struts-default">
    		<action name="regist" class="com.adam.test.action.LoginAction">
    			<result name="success">/success.jsp</result>
    			<result name="input">/index.jsp</result>
    		</action>
    	</package>
    </struts>