Attualmente sto cercando di imparare Struts2.Come posso dire a Struts2 di non convalidare un modulo la prima volta che viene visualizzato?
Ho creato un modulo, un'azione per elaborarlo, un XML per convalidarlo e azioni in struts.xml.
Ogni volta che il modulo viene visualizzato, anche la prima volta, Struts2 tenta di convalidare, quindi gli errori vengono visualizzati prima che l'utente abbia la possibilità di completarlo.
Ecco il codice rilevante:
<!-- /WebContent/views/user/login.jsp -->
<?xml version="1.0" encoding="ISO-8859-1" ?>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Login Page</title>
<s:head />
</head>
<body>
<h1>Login Page</h1>
<s:form action="executeUser">
<s:textfield key="userBean.userName" />
<s:password key="userBean.password" />
<s:submit align="center" />
</s:form>
</body>
</html>
<!-- /src/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>
<constant name="struts.devMode" value="true" />
<package name="overviewofstruts" extends="struts-default">
<action name="loginUser" class="hu.flux.user.LoginUserAction" method="execute">
<result name="input">/views/user/login.jsp</result>
</action>
<action name="executeUser" class="hu.flux.user.LoginUserAction" method="execute">
<result name="input">/views/user/login.jsp</result>
<result name="success">/views/user/login_thankyou.jsp</result>
</action>
</package>
</struts>
// /src/hu/flux/user/LoginUserAction.java
package hu.flux.user;
import java.util.Map;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class LoginUserAction extends ActionSupport {
private User userBean;
public void setUserBean(User userBean) { this.userBean = userBean; }
public User getUserBean() { return userBean; }
public String login() throws Exception { return this.execute(); }
public String execute() throws Exception { return SUCCESS; }
public String input() throws Exception { return INPUT; }
}
<!-- // /src/hu/flux/user/LoginUserAction-validation.xml -->
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE validators PUBLIC
"-//OpenSymphony Group//XWork Validator 1.0.2//EN"
"http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">
<validators>
<validator type="requiredstring">
<param name="fieldname">userBean.userName</param>
<message>Username is required.</message>
</validator>
<validator type="requiredstring">
<param name="fieldname">userBean.password</param>
<message>Password is required.</message>
</validator>
Cosa devo fare o modificare per ottenere puntoni per mostrare il modulo la prima volta senza lamentarsi di tutti i campi vuoti?
Penso che la mia risposta da http://stackoverflow.com/questions/12765997/struts2-disable-validation-on-page-load/16471262#16471262 potrebbe aiutarti. – Trincoluctor