get action property

Hello

I have login.jsp

checkLogin action is mapped to CheckLoginAction.java

how can I get isLoggedIn property in <s:property...> after executing action checkLogin in login.jsp?

have you tried:

<s:property value="isLoggedIn"/>

This works for me, however, instead of a getter method I would use a method named isIsLoggedIn (might want to change the variable name if you do that though). I would think the getter method would work but maybe struts2 can't convert the boolean to a string if you do that. If that doesn't work, can you indicate what is going wrong with it?

I have added getter method isIsLoggedIn, so CheckLoginAction.java now looks like:

and I get the property like:
<s:property value="isLoggedIn"/>

It shows just nothing
excerpt from top of login.jsp:

and how it is rendered to html:

Ok, I played around with this a little. I think the problem is you are using Boolean, and I am using boolean. I guess the s:property can't handle that wrapper class around the boolean (although I admit that seems wierd since it does have a toString method). I recommend trying to use the native type boolean instead of Boolean and see if that fixes your problem.

no, nothing helped

I have changed type, name of the property and there is still no output

login.jsp

CheckLoginAction.java

output:

Strange, this code looks like it should access the values in your action class. Are you sure your action class is being called? Are you calling the JSP directly?

I directly call jsp file, action is definetly called (I added Syste.out.println("sdfsdfsdf") in the execute method and I can see in the tomcat console sdfsdfsdf printed when I call login.jsp)

try this in your jsp:

doesnt work

I'm at a loss. The next thing I would try would be to put an s:debug tag between the <s:action> and </s:action> tags to see what's on the stack. Maybe that will clear up why loggedIn isn't accessible.

nothing

Struts ValueStack Debug

Value Stack Contents
Object	Property Name	Property Value
com.opensymphony.xwork2.DefaultTextProvider 	texts 	null

Stack Context
These items are available using the #key notation
Key	Value
com.opensymphony.xwork2.dispatcher.HttpServletRequest	org.apache.struts2.dispatcher.StrutsRequestWrapper@c97dfd
application	{freemarker.Configuration=freemarker.template.Configuration@1a15a6c, org.apache.tomcat.InstanceManager=org.apache.catalina.core.DefaultInstanceManager@e8195b, .freemarker.Application=freemarker.ext.servlet.ServletContextHashModel@1d9c06c, org.apache.tomcat.JarScanner=org.apache.tomcat.util.scan.StandardJarScanner@1a8fd8, javax.servlet.context.tempdir=E:\apache-tomcat-7.0.6\work\Catalina\localhost\struts, .freemarker.JspTaglibs=freemarker.ext.jsp.TaglibFactory@1192631, org.apache.catalina.jsp_classpath=/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/classes/;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/activation-1.1.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/antlr-2.7.6.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/commons-collections-3.1.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/commons-email-1.2.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/commons-fileupload-1.2.1.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/commons-io-1.3.2.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/dom4j-1.6.1.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/freemarker-2.3.16.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/h2-1.3.149.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/hibernate-core-3.3.2.GA.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/javassist-3.12.1.GA.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/jta-1.1.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/mail-1.4.1.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/ognl-3.0.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/slf4j-api-1.6.1.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/struts2-core-2.2.1.1.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/xml-apis-1.0.b2.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/xwork-core-2.2.1.1.jar;/E:/apache-tomcat-7.0.6/lib/;/E:/apache-tomcat-7.0.6/lib/annotations-api.jar;/E:/apache-tomcat-7.0.6/lib/catalina-ant.jar;/E:/apache-tomcat-7.0.6/lib/catalina-ha.jar;/E:/apache-tomcat-7.0.6/lib/catalina-tribes.jar;/E:/apache-tomcat-7.0.6/lib/catalina.jar;/E:/apache-tomcat-7.0.6/lib/ecj-3.6.jar;/E:/apache-tomcat-7.0.6/lib/el-api.jar;/E:/apache-tomcat-7.0.6/lib/jasper-el.jar;/E:/apache-tomcat-7.0.6/lib/jasper.jar;/E:/apache-tomcat-7.0.6/lib/jsp-api.jar;/E:/apache-tomcat-7.0.6/lib/servlet-api.jar;/E:/apache-tomcat-7.0.6/lib/tomcat-api.jar;/E:/apache-tomcat-7.0.6/lib/tomcat-coyote.jar;/E:/apache-tomcat-7.0.6/lib/tomcat-dbcp.jar;/E:/apache-tomcat-7.0.6/lib/tomcat-i18n-es.jar;/E:/apache-tomcat-7.0.6/lib/tomcat-i18n-fr.jar;/E:/apache-tomcat-7.0.6/lib/tomcat-i18n-ja.jar;/E:/apache-tomcat-7.0.6/lib/tomcat-util.jar;/E:/apache-tomcat-7.0.6/bin/bootstrap.jar;/E:/apache-tomcat-7.0.6/bin/tomcat-juli.jar;/C:/Program%20Files/Java/jdk1.6.0_23/jre/lib/ext/dnsns.jar;/C:/Program%20Files/Java/jdk1.6.0_23/jre/lib/ext/localedata.jar;/C:/Program%20Files/Java/jdk1.6.0_23/jre/lib/ext/sunjce_provider.jar;/C:/Program%20Files/Java/jdk1.6.0_23/jre/lib/ext/sunmscapi.jar;/C:/Program%20Files/Java/jdk1.6.0_23/jre/lib/ext/sunpkcs11.jar, org.apache.jasper.runtime.JspApplicationContextImpl=org.apache.jasper.runtime.JspApplicationContextImpl@37a3c2, org.apache.catalina.resources=org.apache.naming.resources.ProxyDirContext@e049fb}
com.opensymphony.xwork2.ActionContext.locale	ru
com.opensymphony.xwork2.dispatcher.HttpServletResponse	org.apache.catalina.connector.ResponseFacade@b42a7e
current.property.path	null
com.opensymphony.xwork2.ActionContext.application	{freemarker.Configuration=freemarker.template.Configuration@1a15a6c, org.apache.tomcat.InstanceManager=org.apache.catalina.core.DefaultInstanceManager@e8195b, .freemarker.Application=freemarker.ext.servlet.ServletContextHashModel@1d9c06c, org.apache.tomcat.JarScanner=org.apache.tomcat.util.scan.StandardJarScanner@1a8fd8, javax.servlet.context.tempdir=E:\apache-tomcat-7.0.6\work\Catalina\localhost\struts, .freemarker.JspTaglibs=freemarker.ext.jsp.TaglibFactory@1192631, org.apache.catalina.jsp_classpath=/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/classes/;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/activation-1.1.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/antlr-2.7.6.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/commons-collections-3.1.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/commons-email-1.2.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/commons-fileupload-1.2.1.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/commons-io-1.3.2.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/dom4j-1.6.1.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/freemarker-2.3.16.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/h2-1.3.149.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/hibernate-core-3.3.2.GA.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/javassist-3.12.1.GA.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/jta-1.1.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/mail-1.4.1.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/ognl-3.0.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/slf4j-api-1.6.1.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/struts2-core-2.2.1.1.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/xml-apis-1.0.b2.jar;/E:/apache-tomcat-7.0.6/webapps/struts/WEB-INF/lib/xwork-core-2.2.1.1.jar;/E:/apache-tomcat-7.0.6/lib/;/E:/apache-tomcat-7.0.6/lib/annotations-api.jar;/E:/apache-tomcat-7.0.6/lib/catalina-ant.jar;/E:/apache-tomcat-7.0.6/lib/catalina-ha.jar;/E:/apache-tomcat-7.0.6/lib/catalina-tribes.jar;/E:/apache-tomcat-7.0.6/lib/catalina.jar;/E:/apache-tomcat-7.0.6/lib/ecj-3.6.jar;/E:/apache-tomcat-7.0.6/lib/el-api.jar;/E:/apache-tomcat-7.0.6/lib/jasper-el.jar;/E:/apache-tomcat-7.0.6/lib/jasper.jar;/E:/apache-tomcat-7.0.6/lib/jsp-api.jar;/E:/apache-tomcat-7.0.6/lib/servlet-api.jar;/E:/apache-tomcat-7.0.6/lib/tomcat-api.jar;/E:/apache-tomcat-7.0.6/lib/tomcat-coyote.jar;/E:/apache-tomcat-7.0.6/lib/tomcat-dbcp.jar;/E:/apache-tomcat-7.0.6/lib/tomcat-i18n-es.jar;/E:/apache-tomcat-7.0.6/lib/tomcat-i18n-fr.jar;/E:/apache-tomcat-7.0.6/lib/tomcat-i18n-ja.jar;/E:/apache-tomcat-7.0.6/lib/tomcat-util.jar;/E:/apache-tomcat-7.0.6/bin/bootstrap.jar;/E:/apache-tomcat-7.0.6/bin/tomcat-juli.jar;/C:/Program%20Files/Java/jdk1.6.0_23/jre/lib/ext/dnsns.jar;/C:/Program%20Files/Java/jdk1.6.0_23/jre/lib/ext/localedata.jar;/C:/Program%20Files/Java/jdk1.6.0_23/jre/lib/ext/sunjce_provider.jar;/C:/Program%20Files/Java/jdk1.6.0_23/jre/lib/ext/sunmscapi.jar;/C:/Program%20Files/Java/jdk1.6.0_23/jre/lib/ext/sunpkcs11.jar, org.apache.jasper.runtime.JspApplicationContextImpl=org.apache.jasper.runtime.JspApplicationContextImpl@37a3c2, org.apache.catalina.resources=org.apache.naming.resources.ProxyDirContext@e049fb}
last.property.accessed	null
__component_stack	[org.apache.struts2.components.ActionComponent@6ea9f8, org.apache.struts2.components.Debug@158ec7e]
attr	org.apache.struts2.util.AttributeMap@10e5a6d
com.opensymphony.xwork2.dispatcher.ServletContext	org.apache.catalina.core.ApplicationContextFacade@1019bf1
com.opensymphony.xwork2.ActionContext.container	com.opensymphony.xwork2.inject.ContainerImpl@710720
com.opensymphony.xwork2.ActionContext.session	{}
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session	{}
com.opensymphony.xwork2.util.ValueStack.ValueStack	com.opensymphony.xwork2.ognl.OgnlValueStack@1803d7
__requestWrapper.getAttribute	false
last.bean.accessed	null
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parameters	{}
com.opensymphony.xwork2.ActionContext.parameters	{}

what is attribute var in action tag for?

Novice in struts2 but just want to check what is happening,
try simple String type instead of boolean and see if something is displayed or not.

and, one more question, we can access properties via their name only if they belong to a current action (which is stored in top of the ValueStack), so how can I tell where to look for this property?

hmm... looking at the api for the action tag, it looks like I misunderstood how it works. I think you'll want to set the executeResult attribute of it to true, then in your struts.xml file specify a JSP for it to use to generate its output, then in that JSP you should be able to access loggedIn with OGNL. I also thought you could use that tag to do what you are trying to do, but It looks like I'm mistaken.