-----Original Message-----
From: James Pan [mailto:[EMAIL PROTECTED]
Sent: Wednesday, July 23, 2003 2:12 PM
To: [EMAIL PROTECTED]
Subject: [OS-webwork] Using action beans in if-test
Hi,
I'm really new with WebWork, so please bear with me.
I'm trying to create a log-in page (simple username/password form) that
posts to an action which, through some chain of logic, verifies the
username/password combo... if the log-in fails, i want to return to the
original log-in page with an error message...
how do I put a test in the if-tag for a method of the action bean?
-------------- lots 'o code deleted --------------
WebWork handles errors for you, so if you have field error (see
setUsername()) or a lookup error (see doExecute()) errors are added to
WebWork's Value Stack. You can then dig out the errors in the JSP page
(see the test for "hasErrorMessages")
If you use WebWork's ui textfield and password tags (along with a
collection of ui templates in template/standard) errors you add in the
Login class are automatically added to the view.
Hope this gets ya going!
Rossi
Here is my simple setup:
--> My index page:
<jsp:forward page="login!default.action" />
--> In views.properties:
# General actions.
login.action=common.Login
login.input=login.jsp
login.success=success.jsp
login.error=login.jsp
--> My Login class (note that it extends WebWork's ActionSupport class):
public class Login extends ActionSupport implements CommandDriven {
private String username = "";
private String password = "";
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
if (username.trim().equals("")) {
throw new IllegalArgumentException("Please specify your user
name.");
}
this.username = username;
}
protected String doExecute() throws Exception {
User user = new UserMapper().find(getUsername(), getPassword());
if (user == null) {
addErrorMessage("The username and password combination are
invalid. " +
"Make sure the Caps Lock key has not been
accidentally turned on.");
return ERROR;
}
ActionContext.getSession().put("user", user);
return SUCCESS;
}
}
--> My login.jsp:
<%@ taglib uri="webwork" prefix="webwork" %>
<%@ taglib uri="webwork" prefix="ui" %>
<link rel="stylesheet" type="text/css"
href="template/standard/styles.css" title="Style">
<html>
<head>
<title>Login to My System</title>
</head>
<body onLoad="document.login.username.focus()">
<center>
<h2><i>Login to My System</i></h2>
<table>
<tr><td>
<form name="login" action="login.action" method="POST">
<table>
<ui:textfield label="text('login.username.label')"
name="'username'" />
<ui:password label="text('login.password.label')"
name="'password'" />
<tr><td colspan="2" align="center"><hr></td></tr>
<tr><td colspan="2" align="center">
<input type="submit" value="Login"/>
</td></tr>
</table>
</form>
</td></tr>
</table>
<webwork:if test="hasErrorMessages == true">
<br><br>
<webwork:iterator value="errorMessages">
<font color="red"><webwork:property/></font><br>
</webwork:iterator>
</webwork:if>
</center>
</body>
</html>
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