JSF tags not rendered [duplicate]_问答_开发者_运维开发者技术经验分享

This question already has an answer here: JSF returns blank/unparsed page with plain/raw XHTML/XML/EL source instead of rendered HTML output (1 answer) Closed 6 years ago.

I am new to JSF, but my JSF tags are not rendered in xhtml file, i tried out every possible solution, but problem is not solved

my web.xml

<?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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <disp开发者_StackOverflowlay-name>JSFProject</display-name>
  <welcome-file-list>
    <welcome-file>JSFProject/index.html</welcome-file>
    <welcome-file>JSFProject/index.htm</welcome-file>
    <welcome-file>JSFProject/index.jsp</welcome-file>
    <welcome-file>JSFProject/default.html</welcome-file>
    <welcome-file>JSFProject/default.htm</welcome-file>
    <welcome-file>JSFProject/default.jsp</welcome-file>
  </welcome-file-list>
  <context-param>
        <param-name>javax.faces.PROJECT_STAGE</param-name>
        <param-value>Development</param-value>
    </context-param>

  <servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>



  <servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.xhtml</url-pattern>
  </servlet-mapping>
</web-app>

my example.xhtml

<?xml version="1.0" encoding="ISO-8859-1" ?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<title>Example</title>
</head>
<body>
 <h:form>
    Some random data: <h:inputText/><br/>  <!-- Textfield ignored -->
    Some other data: <h:inputText/><br/>   <!-- Textfield ignored -->

    </h:form>

</body>
</html>

I had spend 3 days to figure out the problem, any help will be welcome

The symptoms of the JSF components not being parsed at all indicates that the FacesServlet hasn't run. This will happen when the request URL doesn't match the url-pattern of the FacesServlet as definied in web.xml. This would mean that the actual url-pattern of the FacesServlet isn't *.xhtml at all. Are you looking into and editing the right web.xml you think you are? Is the right web.xml been deployed with the webapp into the servletcontainer?

I had the same problem, I fixed this by updating below as:- Already Martin had mentioned in the above. Thanks.

web.xml

<context-param>
    <param-name>javax.faces.DEFAULT_SUFFIX</param-name>
    <param-value>.xhtml</param-value>
</context-param>

<context-param>
        <param-name>javax.faces.application.CONFIG_FILES</param-name>
        <param-value>/WEB-INF/faces-config.xml</param-value>
</context-param>

<servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.faces</url-pattern>
  </servlet-mapping>

faces-config.xml

<application>
        <view-handler>com.sun.facelets.FaceletViewHandler</view-handler>
</application>

Try:

<?xml version="1.0" encoding="ISO-8859-1" ?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<title>Example</title>
</head>
<body>
<f:view>
 <h:form>
    Some random data: <h:inputText/><br/>  <!-- Textfield ignored -->
    Some other data: <h:inputText/><br/>   <!-- Textfield ignored -->

    </h:form>

</f:view>
</body>
</html>

I've included the JSF <f:view> tag

Man, you haven't set the javax.faces.DEFAULT_SUFFIX context parameter. The default for jsf is jsp, so jsf will search for example.jsp instead of example.xhtml. Basically JSF replaces the extension of the resource requested with the javax.faces.DEFAULT_SUFFIX.

Use the following and it will work:

<context-param>
    <param-name>javax.faces.DEFAULT_SUFFIX</param-name>
    <param-value>.xhtml</param-value>
</context-param>

Do you have faces-config.xml in place that declares Facelets as view handler?

<?xml version="1.0"?>
<faces-config xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_1_2.xsd" version="1.2">
<application>
    <view-handler>com.sun.facelets.FaceletViewHandler</view-handler>
</application>
</faces-config>

Don't forget about javax.faces.DEFAULT_SUFFIX parameter to be set to .xhtml as mentioned above.

Add the following in your web-inf/lib :

jsf-api-2.0.9.jar jsf-facelets-1.1.14.jar jsf-impl-2.0.4-b09.jar jstl-1.2.jar

without jsf-facelets*.jar, you won't be able to render the jsf view.

And, following should be in your web.xml :

 <servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>/jsf/*</url-pattern>
    <url-pattern>*.xhtml</url-pattern>
  </servlet-mapping>

Without above two url-pattern, tomcat won't be able to map .xhtml file properly.

And, faces-config.xml :

<?xml version="1.0" encoding="UTF-8"?>

<faces-config
    xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_2_0.xsd"
    version="2.0">

</faces-config>