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jsp pageContext.findAttribute method

I would like to know more about jsp pageContext.findAttribute method. I would like to know where, when, how, why we use it. I am not able to find good examples on it.
Please advise. Any ideas, sample code, resources highly appreciated. Thanks
in advance.

Valeri

here is a good explanation:
http://82.157.70.109/mirrorbooks/javaserverpages24hours/0672325977_ch08lev1sec3.html

Sathish David Kumar N

Check this

gudii9

ASKER

no link

gudii9

ASKER

I ran this example from below link

http://82.157.70.109/mirrorbooks/javaserverpages24hours/0672325977_ch08lev1sec3.html

I have not understood the output i got as below

This page has access to the following attributes:
In the Page scope:
javax.servlet.jsp.jspConfig: org.apache.catalina.core.StandardWrapperFacade@106daba
javax.servlet.jsp.jspResponse: org.apache.catalina.connector.ResponseFacade@1021f34
javax.servlet.jsp.jspPageContext: org.apache.jasper.runtime.PageContextImpl@4eb043
javax.servlet.jsp.jspSession: org.apache.catalina.session.StandardSessionFacade@163956
javax.servlet.jsp.jspRequest: org.apache.catalina.connector.RequestFacade@10e434d
javax.servlet.jsp.jspApplication: org.apache.catalina.core.ApplicationContextFacade@16477d9
javax.servlet.jsp.jspPage: org.apache.jsp.MyJsp_jsp@f864fe
javax.servlet.jsp.jspOut: org.apache.jasper.runtime.JspWriterImpl@1ae9aaa

In the Request scope:

In the Session scope:

In the Application scope:
org.apache.catalina.WELCOME_FILES: [Ljava.lang.String;@2c17f7
javax.servlet.context.tempdir: C:\Users\ganesha\Workspaces\MyEclipse 10_workspace\.metadata\.me_tcat\work\Catalina\localhost\LoginApp
org.apache.catalina.jsp_classpath: /C:/Users/ganesha/Workspaces/MyEclipse%2010_workspace/.metadata/.me_tcat/webapps/LoginApp/WEB-INF/classes/;/C:/Users/ganesha/Workspaces/MyEclipse%2010_workspace/.metadata/.me_tcat/webapps/LoginApp/WEB-INF/lib/javax.servlet.jsp.jstl.jar;/C:/Users/ganesha/Workspaces/MyEclipse%2010_workspace/.metadata/.me_tcat/webapps/LoginApp/WEB-INF/lib/jsf-api.jar;/C:/Users/ganesha/Workspaces/MyEclipse%2010_workspace/.metadata/.me_tcat/webapps/LoginApp/WEB-INF/lib/jsf-impl.jar;/C:/Users/ganesha/Workspaces/MyEclipse%2010_workspace/.metadata/.me_tcat/webapps/LoginApp/WEB-INF/lib/jstl-impl.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.ws.xfire_9.0.0.me201211011550/lib/webservices-api.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.ws.xfire_9.0.0.me201211011550/lib/webservices-extra-api.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.ws.xfire_9.0.0.me201211011550/lib/webservices-extra.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.ws.xfire_9.0.0.me201211011550/lib/webservices-rt.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.ws.xfire_9.0.0.me201211011550/lib/webservices-tools.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/lib/;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/lib/annotations-api.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/lib/catalina-ant.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/lib/catalina-ha.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/lib/catalina-tribes.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/lib/catalina.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/lib/el-api.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/lib/jasper-el.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/lib/jasper-jdt.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/lib/jasper.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/lib/jsp-api.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/lib/servlet-api.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/lib/tomcat-coyote.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/lib/tomcat-dbcp.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/lib/tomcat-i18n-es.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/lib/tomcat-i18n-fr.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/lib/tomcat-i18n-ja.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/plugins/com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201211011550/tomcat/bin/bootstrap.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/binary/com.sun.java.jdk.win32.x86_1.6.0.013/lib/tools.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/binary/com.sun.java.jdk.win32.x86_1.6.0.013/jre/lib/ext/dnsns.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/binary/com.sun.java.jdk.win32.x86_1.6.0.013/jre/lib/ext/localedata.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/binary/com.sun.java.jdk.win32.x86_1.6.0.013/jre/lib/ext/sunjce_provider.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/binary/com.sun.java.jdk.win32.x86_1.6.0.013/jre/lib/ext/sunmscapi.jar;/C:/Users/ganesha/AppData/Local/MyEclipse/Common/binary/com.sun.java.jdk.win32.x86_1.6.0.013/jre/lib/ext/sunpkcs11.jar
org.apache.jasper.runtime.JspApplicationContextImpl: org.apache.jasper.runtime.JspApplicationContextImpl@d9896e
org.apache.catalina.resources: org.apache.naming.resources.ProxyDirContext@1cda59b
org.apache.AnnotationProcessor: org.apache.catalina.util.DefaultAnnotationProcessor@33788d

can you please explain.

why are they setting scopes to array.

why only request and session scopes coming in output as below.

In the Request scope:

In the Session scope:

why not applicaion scope

gudii9

ASKER

is there is any other simple exaple to try please advise

gudii9

ASKER

i could not find any good examples. please advise

Sathish David Kumar N

The above example are some basic understanding examples . Can you clearly tell what kind of example you expect ?

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Valeri

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gudii9

ASKER

>>> If for example you put some attribute in the session scope, for example : session.setAttribute("user", someUserObject); it has to be shown there.

I am looking for simple example which uses
pageContext.findAttribute

Can you please advise. Above example is still not clear why they are setting scopes( i thought scopes are implicit right, what is the necessity of declaring and assigning seperately) and then scope names and then simply printing.

How can i modify above code to make it more meaningful. Please advise