 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
Java Forum / General / September 2007navigating pages in JSF
Hi, I m using netbeans IDE 6.0. I want to know how to navigate pages in JSF. I can forward from one page to another using page navigation but want to know how to send and retrieve parameters in JSF pages... I have uploaded the netbeans project here..... http://myjavaserver.com/~pradyut/files/WebApplication1.zip thanks Pradyut http://pradyut.tk India > Hi, > I m using netbeans IDE 6.0. I want to know how to navigate pages > in JSF. I can forward from one page to another using page navigation > but want to know how to send and retrieve parameters in JSF pages... <http://java.sun.com/javaee/5/docs/tutorial/doc/JSFIntro6.html#wp115538> <http://java.sun.com/javaee/5/docs/tutorial/doc/JSFPage10.html#wp119785>  SignatureLew > > Hi, > > I m using netbeans IDE 6.0. I want to know how to navigate pages [quoted text clipped - 6 lines] > -- > Lew I can navigate to a different page and can forward to different pages depending on the form validations. But i cannot forward the parameters like textfield to the forwarded page nor do i know to retrieve the values. thanks Pradyut http://pradyut.tk India >>> Hi, >>> I m using netbeans IDE 6.0. I want to know how to navigate pages >>> in JSF. I can forward from one page to another using page navigation >>> but want to know how to send and retrieve parameters in JSF pages... >> <http://java.sun.com/javaee/5/docs/tutorial/doc/JSFIntro6.html#wp115538> >> <http://java.sun.com/javaee/5/docs/tutorial/doc/JSFPage10.html#wp119785> > I can navigate to a different page and can forward to different pages > depending on the form validations. But i cannot forward the parameters > like textfield to the forwarded page nor do i know to retrieve the > values. The managed-bean element in the faces-config.xml can specify that a property be initialized from a session value. You can either declare a (small!) managed-bean of session scope or explicitly place an attribute in the session in your forwarding page's backing bean's action method. <http://java.sun.com/javaee/5/docs/tutorial/doc/JSFConfigure3.html#wp1000014> SignatureLew >>>> Hi, >>>> I m using netbeans IDE 6.0. I want to know how to navigate pages [quoted text clipped - 14 lines] > > <http://java.sun.com/javaee/5/docs/tutorial/doc/JSFConfigure3.html#wp1000014> It doesn't even have to be session scope. I haven't tried it with JSF yet myself, but in my own MVC-cycle servlets in non-JSF projects I just placed attributes in the request, which avoids a host of session-related complications. I betcha JSF supports that sort of thing, too. Place the attribute in the request (not the session) and refer to it in the managed-property via the EL with a scoped attribute. SignatureLew >Hi, > I m using netbeans IDE 6.0. I want to know how to navigate pages >in JSF. I can forward from one page to another using page navigation >but want to know how to send and retrieve parameters in JSF pages... JSF expects the parameters to be properties of a managed bean. If you use the Visual Web Pack <http://www.netbeans.org/products/visualweb/> to develop your JSF project then it will handle the details of managing the managed beans. If you don't use the Visual Web Pack you will need to write the beans yourself and write the XML to tell the server about them. In either case you will need to do some reading on the scope of the beans and how to set and get the variables in them. If you must use GET data to send parameters I have a brief note on how to retrieve them from a JSF page at <http://www.profectus.com.au/ee_getdata.html>. The task is complex if you don't use the Visual Web Pack and trivial if you do. >>Hi, >> I m using netbeans IDE 6.0. I want to know how to navigate pages [quoted text clipped - 12 lines] > <http://www.profectus.com.au/ee_getdata.html>. The task is complex if > you don't use the Visual Web Pack and trivial if you do. I'm still not getting it..... I'm using this code to retrive the values....... FacesContext fc = FacesContext.getCurrentInstance(); String id = (String) fc.getExternalContext().getRequestParameterMap().get("Page1.textField1"); Pls some help Thanks Pradyut http://pradyut.tk India > I'm still not getting it..... > I'm using this code to retrive the values....... [quoted text clipped - 4 lines] > > Pls [sic] some help Did you read the links I suggested? > <http://java.sun.com/javaee/5/docs/tutorial/doc/JSFIntro6.html#wp115538> > <http://java.sun.com/javaee/5/docs/tutorial/doc/JSFPage10.html#wp119785> > <http://java.sun.com/javaee/5/docs/tutorial/doc/JSFConfigure3.html#wp1000014> You don't use explicit code like that to retrieve values. You do it by binding your "value" attribute to a backing bean property, which bean is specified in the faces-config.xml. JSF does the mapping for you. Read the part about the JSF life cycle in the tutorial. Study it thoroughly. Let us know that you've read the material before you repeat your questions again. Then if you have specific questions about the material you can ask them based on your reading, which you must do first. SignatureLew >>>Hi, >>> I m using netbeans IDE 6.0. I want to know how to navigate pages [quoted text clipped - 19 lines] > String id = (String) >fc.getExternalContext().getRequestParameterMap().get("Page1.textField1"); This is definitely wrong but I can't guess what it should be from this fragment. JSF expects the data to be passed via a managed bean so if you are simply passing data from one JSF page to another you should not be using a FacesContext. An explanation of managed beans requires an entire chapter in any JSF text book and it is not possible to give you some cookbook code in a Usenet post. Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
|
Reply to this Message
|
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2009 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.