This sample explains about how to do a XML based Validation in Struts 2.
1) Create a Dynamic Web Project in Eclipse
2) Create the below jsp pages
1) Create a Dynamic Web Project in Eclipse
2) Create the below jsp pages
- index.jsp
- login.jsp
- success.jsp
3) Create the below pages in src folder
- global.properties
- LoginAction.properties
- LoginAction-validation.xml
- LoginAction.java
- struts.xml
4) web xml
index.jsp
<html>
<body>
<a href="login.jsp">Click here to view validation demo</a><br>
</body>
</html>
login.jsp
<%@ taglib uri="/struts-tags" prefix="s"%>
<html>
<body>
<h1>Welcome to Struts2 validation demo</h1>
<s:form action="login">
<s:textfield name="userName" label="UserName" />
<br>
<s:password name="pass" label="Password" />
<br>
<s:submit value="Login" />
<br>
</s:form>
</body>
</html>
success.jsp
<html>
<body>
<h1> Page is validated successfully</h1>
</body>
</html>
global.properties
myapp.login.page.label.username=MyUserName
LoginAction.properties
myapp.login.page.message.username.required=UserName is required
myapp.login.page.message.pass.required=Password is required
myapp.login.page.message.username.invalid=UserName is Invalid
LoginAction-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>User Name is required.</message>
</field-validator>
</field>
<field name="pass">
<field-validator type="requiredstring">
<message key="myapp.login.page.message.pass.required" />
</field-validator>
</field>
</validators>
import com.opensymphony.xwork2.ActionSupport;
LoginAction.java
public class LoginAction extends ActionSupport{
private String userName;
private String pass;
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPass() {
return pass;
}
public void setPass(String pass) {
this.pass = pass;
}
public String execute() throws Exception {
System.out.println("execute method");
return SUCCESS;
}
}
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="default" namespace="/" extends="struts-default">
<action name="login" class="LoginAction">
<result>/success.jsp</result>
<result name="input">/login.jsp</result>
</action>
</package>
</struts>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>Struts2Example2</display-name>
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
<init-param>
<param-name>struts.devMode</param-name>
<param-value>true</param-value>
</init-param>
</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>
