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JSF problem. XML file does not appear to have any style information associated with it [duplicate]

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I'm initiating in java jsf, I created an xhtml simple to show table in localhost but I am receiving this error "This XML file does not appear to have any style information associated with it. The document tree is shown below." I don't have any idea of to solve this.
My project is very simple is only to display a jsf table with records of mysql table.
Below is my project.
Especialidade:

EspecialidadesDAO:

package itc.itcsystems.beans;

import java.io.Serializable;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;

/**
 *
 * @author Cezar Apulchro
 */

@ManagedBean
@SessionScoped
public class EspecialidadesDAO implements Serializable
{
    public Connection conectar;
    public Connection conectardb;
    
    private static final long serialVersionUID = 1L;
    
    public EspecialidadesDAO()
    {
        conectar = new Conectar_Banco_W00().getConnection();
        
    }
    
    public List<Especialidade> getEspecialidade()
    {
        String LISTHemog = "SELECT Especialidade "
                + "FROM Tabela_Especialidades_Medicas";
       
        Connection conexao = null;
        PreparedStatement pstm = null;
        ResultSet rs = null;
        ArrayList<Especialidade> medico = new ArrayList<Especialidade>();
        
        try
        {            
            conexao = new Conectar_Banco_W00().getConnection();
            pstm = conexao.prepareStatement(LISTHemog);
            
            rs = pstm.executeQuery();
            
            while (rs.next())                
            {
                Especialidade especialidade = new Especialidade();
                especialidade.setEspecialidade(rs.getString("Especialidade"));
                
                medico.add(especialidade);
            }
            Conectar_Banco_W00.fecharConexao(conexao, pstm, rs);
        }
        catch(SQLException e)
        {
            e.printStackTrace();
        }
        return medico;
    }
    
}

JSF to display table:

Dependencies:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" 
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
                             http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

<groupId>itc.itcsystems</groupId>
    <artifactId>ITC_Systems_ClientesMedicos</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>

<name>ITC_Systems_ClientesMedicos</name>

<properties>
        <endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
    
    <dependencies>
        <dependency>
            <groupId>com.sun.faces</groupId>
            <artifactId>jsf-api</artifactId>
            <version>2.2.20</version>
        </dependency>
        
        <dependency>
            <groupId>com.sun.faces</groupId>
            <artifactId>jsf-impl</artifactId>
            <version>2.2.20</version>
        </dependency>
        
        <dependency>
            <groupId>javax.servlet.jsp.jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

<dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-web-api</artifactId>
            <version>7.0</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>

<build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                    <compilerArguments>
                        <endorseddirs>${endorsed.dir}</endorseddirs>
                    </compilerArguments>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.3</version>
                <configuration>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <version>2.6</version>
                <executions>
                    <execution>
                        <phase>validate</phase>
                        <goals>
                            <goal>copy</goal>
                        </goals>
                        <configuration>
                            <outputDirectory>${endorsed.dir}</outputDirectory>
                            <silent>true</silent>
                            <artifactItems>
                                <artifactItem>
                                    <groupId>javax</groupId>
                                    <artifactId>javaee-endorsed-api</artifactId>
                                    <version>7.0</version>
                                    <type>jar</type>
                                </artifactItem>
                            </artifactItems>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

Result of the execution:

Thanks in advance.

Tim Holloway

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That's because your page isn't coming from JSF. The error message is a stock message produced by your browser when it receives raw XML without any associated presentation (styling) information.

In other words, you're requesting the "display table" directly, not through JSF.

For JSF to work, you have to send your URL requests to the FacesServlet. The FacesServlet then locates the appropriate View Template and uses it as the basis to generate an HTML response back to you.

For this to work properly, you need to name the View Template file appropriately. For example "displayTable.xhtml". Then you have to map ".xhtml" URLs to go to the FacesServlet. That is, in your web.xml, you make the following associations:

URL-pattern: *.jsf -> Logical Servlet ID: FacesServlet
Logical Servlet ID: FacesServlet -> FacesServlet class

Like so:

Then, if you invoke your URL something like this: http://localhost:8080/mywebapp/displayTable.jsf, JSF will properly route your request and - barring errors - render the page in the way you expect to see it.

Some people, when well-known sources tell them that fire will burn them, don't put their hands in the fire.

Some people, being skeptical, will put their hands in the fire, get burned, and learn not to put their hands in the fire.

And some people, believing that they know better than well-known sources, will claim it's a lie, put their hands in the fire, and continue to scream it's a lie even as their hands burn down to charred stumps.

Cezar Apulchro

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After update web.xml the problem still the same.
My web.xml:

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
                             http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">
    <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>/faces/*</url-pattern>
    </servlet-mapping>
    
       <servlet-mapping>
               <servlet-name>Faces Servlet</servlet-name>
               <url-pattern>*.jsf</url-pattern>
       </servlet-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <welcome-file-list>
        <welcome-file>faces/index.xhtml</welcome-file>
    </welcome-file-list>
</web-app>

Thnks.

Tim Holloway

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What is the URL that you are submitting?

Cezar Apulchro

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URL:
http://localhost:8081/ITC_Systems_ClientesMedicos/TabelaEspecialidade.xhtml

Cezar Apulchro

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Sorry:

Tim Holloway

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Cezar Apulchro wrote:Sorry:
http://localhost:8081/ITC_Systems_ClientesMedicos/TabelaEspecialidade.jsf

Cezar Apulchro

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Now is HTTP Status 404 after change to:

Tim Holloway

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Cezar Apulchro wrote:Now is HTTP Status 404 after change to:
http://localhost:8081/ITC_Systems_ClientesMedicos/TabelaEspecialidade.jsf

Your WAR is named ITC_Systems_ClientesMedicos?

Your view template file is located in the root of the WAR and named TabelaEspecialidade.xhtml?

Cezar Apulchro

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Yes, how to confirm for you?

Tim Holloway

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Cezar Apulchro wrote:Yes, how to confirm for you?

I trust you. Although it is very strange if you get a 404 error from TabelaEspecialidade.jsf but a display from TabelaEspecialidade.xhtml. You should be seeing either both or neither.

Perhaps you could take a screen capture of the "404" page for me.

Cezar Apulchro

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I try to send image of screen for you.

Cezar Apulchro

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How to send image?

Tim Moores

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You can attach it to a post. See the tab "Attachments" underneath the text field when you're writing a reply.

Cezar Apulchro

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HTTP Status 404 – Não Encontrado
Type Status Report

Description The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.

Apache Tomcat/9.0.14

Cezar Apulchro

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Thanks.

Imag_ITC.jpg

Tim Holloway

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OK. The mystery continues. Can your provide me with a directory tree listing of the TOMCAT_HOME/webapps directory? In linux, you'd use the "tree" utility. I think that DOS has an option like DIR /T.

Cezar Apulchro

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Hi, just now I noticed a message from the maven.

content of maven-archiver:

Tim Holloway

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Here's some Maven snippets. They're old, but should still work: Or at least indicate what you might need if you upgrade them.

Note that the core JEE jars are "provided", not "compile" scope. Using compile scope would put copies of those JARs into the WAR and cause problems because they'd hide the copies that are build into Tomcat (in the TOMCAT_HOME/lib directory).

Tomcat is not full-stack JEE compliant, which is why in Tomcat the jsf-impl JAR is "compile" scope. For full-stack servers like Wildfly and Websphere, jsf-impl would be "provided" as well, since JSF is built into them.

Cezar Apulchro

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Hi, after download jstl 1.2 and install manually the problem was solved.
Thanks and best regards.

Cezar Apulchro

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The correct is, after download jstl-api 1.2 and install manually the problem was solved.
Thanks and best regards.

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