Scope annotation	Backing bean life
@RequestScoped	One call(request)And the response to it(response)Survive for
@SessionScoped	While the HTTP session continues(While logged in)Survival
@ApplicationScoped	Survival while the web application is running
@ConversationScoped	Programmatically control start and end between one or more requests
@Dependent	Take over the scope of the injection destination(Used when the scope cannot be determined in advance)
@ViewScoped	It survives until just before the JSF page displayed by the request is switched to another page. It survives even if the screen is reloaded.

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Basic requirements for CDI bean class from Java EE 7
a.Being a concrete class
b.Have a default constructor with no arguments
c.Not an inner class with static

Rule of method specified in action attribute of JSF
a.Be public
b.No arguments
c.Return String. This return value will be the outcome.

JSF 2.2 View Declaration Language: Facelets Variant
javax.faces 2.4.0 javadoc (org.glassfish) -Getting Started with Java EE 7 (12) --Injection of CDI Bean --Enterprise Geeks -Phenomenon that the screen is not rendered normally with Facelets --Wadahiro's diary -Web application development by JSF -Use OR and AND conditions in JSF EL expressions --Qiita -When displaying a message with JSF custom validator, errorClass of h: message is not applied unless SEVERITY_ERROR is set in the message. --Qiita -How to deal with when the value becomes null in the second getSubmittedValue () in JSF Validator --Qiita -How to check the JSF version --Qiita -[JSF 2.2 parameter passing method # 2. Method using f: param tag. | Introduction to JavaServer Faces](http://dream.mods.jp/wp/2016/11/01/jsf2-2%E5%85%A5%E9%96%80-%E7%AC%AC14%E5%9B % 9E% E3% 83% 91% E3% 83% A9% E3% 83% A1% E3% 83% BC% E3% 82% BF% E5% 8F% 97% E3% 81% 91% E6% B8% A1 % E3% 81% 97 /) -I made a JSF project in Eclipse with Maven. --ponsuke_tarou ’s blog -H: Try various radios of selectOneRadio with buttons --Qiita -How to specify id attribute in JSF --Qiita -H: How to execute action attribute processing only when the confirmation dialog is OK with commandButton --Qiita --H: I wrote an EL expression in the onclick attribute of the button tag and failed --Qiita

Other Java

A collection of sites that teach you the basics of Java-Qiita

I was in trouble

-[JSF did not apply CSS and the server.log output One or more resources have the target of'head', but no'head' component has been defined within the view.-Qiita](https:: //qiita.com/ponsuke0531/items/ef50784e1378316b6513) -When the JSF screen is displayed, javax.el.ELException: Not a Valid Method Expression: --Qiita

Links I want to help when JSF doesn't work at all

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Other Java

I was in trouble

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