[JAVA] What to do when JSF tags do not become HTML

--Environment - CentOS Linux release 7.8.2003 (Core) - Payara Server 5.194 - Eclipse IDE for Enterprise Java Developers.Version: 2020-03 (4.15.0)

Event: JSF tag is displayed as it is without becoming HTML

I made a JSF project and wrote XHTML immediately, but ... JSF tags are output as they are スクリーンショット 2020-07-21 22.53.37.png


<?xml version='1.0' encoding='UTF-8' ?>
<html xmlns="http://www.w3.org/1999/xhtml"
    <title>What to do when JSF tags do not become HTML</title>
  <h3>What to do when JSF tags do not become HTML</h3>
  h:I tried to write a checkbox with selectBooleanCheckbox
    <h:selectBooleanCheckbox id="checkBox" value="false" />
    <h:outputLabel for="checkBox" value="Checkbox"/>

Cause: The URL definition in web.xml and the URL used do not match

Servlet-mapping defines how to specify the URL to access the web application. Introduction to Easy-to-Understand Java EE Web System by Takashi Kawaba


<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
    <servlet-name>Faces Servlet</servlet-name>

If it is the definition of web.xml, it will be displayed as http: //xxxxxx/ {display-name} /faces/index.xhtml However, this event failed because it was displayed as http: //xxxxxx/ {display-name} /index.xhtml.

Action 1: Match the URL to use with web.xml

If you use http: //xxxxxx/ {display-name} /index.xhtml, it will be displayed properly. スクリーンショット 2020-07-21 22.49.16.png

Action 2: Match the URL that uses web.xml

Modify web.xml, rebuild and rerun


    <servlet-name>Faces Servlet</servlet-name>

スクリーンショット 2020-07-21 22.59.39.png

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