Struts2 表单验证
(1)配置文件Struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="com" namespace="/" extends="struts-default">
<action name="User" + getAge());
System.out.println("Birthday" + birthday);
sports = getSports();
for (String sport : sports) {
System.out.println(sport);
}
if ((sex == null) || sex.equals("")) {
addFieldError("sex", "sex is not null");
return INPUT;
}
return SUCCESS;
}
―――get/set方法
}
(3)验证规则文件User-validation.xml
<!DOCTYPE validators PUBLIC
"-//OpenSymphony Group//XWork Validator 1.0.2//EN"
"http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">
<validators>
<field name="userName">
<field-validator type="requiredstring">
<message key="requiredstring"/>
</field-validator>
<field-validator type="stringlength">
<param name="fieldName">userName</param>
<param name="minLength">6</param>
<param name="maxLength">10</param>
<param name="trim">true</param>
<message key="stringlengthmessage"/>
</field-validator>
<field-validator type="regex">
<param name="fieldName">userName</param>
<param name="expression">[A-Za-z0-9]+</param>
<message key="regexmessage"/>
</field-validator>
</field>
<field name="name">
<field-validator type="requiredstring">
<message key="requiredstring"/>
</field-validator>
<field-validator type="regex">
<param name="fieldName">name</param>
<param name="expression">[a-zA-Z]+</param>
<message key="nameregexmessage"/>
</field-validator>
</field>
<field name="age">
<field-validator type="int">
<param name="min">1</param>
<param name="max">120</param>
<message key="agemessage"/>
</field-validator>
</field>
<field name="email">
<field-validator type="email">
<param name="fieldName">email</param>
<message key="emailmessage"/>
</field-validator>
</field>
<validator type="url">
<param name="fieldName">mainPage</param>
<message key="mainpagemessage"/>
</validator>
<field name="birthday">
<field-validator type="date">
<param name="min">1980-01-01</param>
<param name="max">2007-07-29</param>
<message key="birthdaymessage"/>
</field-validator>
</field>
</validators>
（4）package.properties属性文件
requiredstring=This field is required!
stringlengthmessage=userName must be between ${minLength}and${maxLength} needs to be 6-8 characters long !
regexmessage=The userName must be character and number!
nameregexmessage=name must be all character!
agemessage=Age must be in range ${min} and ${max}
emailmessage=Must provide a valid email!
mainpagemessage=Invalid homepage url
birthdaymessage=Birthday must be within ${min} and ${max}
(5)index.jsp页面
<%@ page contentType="text/html;charset=UTF-8" language="java"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
<title>Struts2 Validation Application!</title>
<s:head theme="ajax" />
</head>
<body>
This is a Validate Application!
<hr>
<s:fielderror />
<s:form action="User.action" method="POST">
<s:textfield key="userName" label="UserName" />
<br>
<s:password key="password" label="Password" />
<s:textfield key="name" label="Name" />
<s:radio label="Sex" list="{'Male','Female'}" key="sex" />
<s:textfield label="Age" key="age" value="18" />
<s:checkboxlist list="{'football','basketball','pingpang'}"
label="Sports" key="sports" />
<s:textfield label="Email" key="email" value="abc@yahoo.com.cn" />
<s:textfield label="Main Page" key="mainPage" value="http://" />
<s:datetimepicker key="birthday" label="Birthday" toggleType="explode" toggleDuration="500" value="2007-08-29" />
<s:select list="{'China','American','Japenese'}" label="Select Country" headerKey="1" headerValue="-- Please Select --" key="country" />
<s:textarea key="description" label="Description" rows="8" cols="20" />
<s:submit />
<s:reset
form now... Press OK to continue!');" />
</s:form>
<hr>
This Example from
<a href="http://hi.baidu.com/vsandjava">http://hi.baidu.com/vsandjava</a>
</body>
</html>
（6）result.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<title>
Simple jsp page
</title>
</head>
<body>
<center><h7><b>This is Result!</b></h7></center>
<br>
<center>
userName:<s:property value="userName"/> <br>
Password:<s:property value="password"/> <br>
Sex:<s:property value="sex"/> <br>
Name:<s:property value="name"/> <br>
Age:<s:property value="age"/> <br>
Sports:<s:property value="sports"/> <br>
Birthday:<s:property value="birthday"/> <br>
Country:<s:property value="country"/> <br>
Email:<s:property value="email"/> <br>
MainPage:<s:property value="mainPage"/> <br>
Description:<s:property value="description"/> <br>
</center>
</body>
</html>
(7)web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
