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 problem java dynamic web

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PostSubject: problem java dynamic web   Sat Mar 24, 2018 6:10 am

step one :

install apache tomcat version 9 or higher



C:\Program Files\Java\jdk1.8.0_131\jre

step 2 : conect java eclipse oxygen to the apache (setsuzoku dankai):
tool strip, help, install new software
work with : drop down arrow (select all available sites)
wait while it says panding...

drag down and check the check box with : web, XML, java EE something
wait...
eclipse will ask to be restarted, click yes.

step 3
in the package explorer right click the project folder,
project, web, arrow next to web, dynamic web project

step 4
new run time, choose apache tomcat 9
in browse select the apache install directory
it should be in C:\Program Files\Apache Software Foundation\Tomcat 9.0
finish to exit the new run time sub dialog box and on the main dialog box:
give the project a name

step 5 :
right click the web project you created, configure, convert to maven project
search the maven depository (https://mvnrepository.com) for : glassfish jersey

choose version 2.26 to get to :
https://mvnrepository.com/artifact/org.glassfish.jersey.core/jersey-client/2.26

open port.xml in the project in the package explorer under web-inf
click its dependency tab, add, and fill in the data from the link to the eclipse IDE.
click the pom.xml tab.

step 6 :

paste this above the build tag :
<dependencies>
 <!-- https://mvnrepository.com/artifact/org.glassfish.jersey.core/jersey-client -->
<dependency>
   <groupId>org.glassfish.jersey.core</groupId>
   <artifactId>jersey-client</artifactId>
   <version>2.26</version>
</dependency>

 </dependencies>

(I just copied it from the jersey maven link)

so it looks like :
Code:

<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>
 <version>2.26</version>
 <packaging>war</packaging>
 <dependencies>
 <!-- https://mvnrepository.com/artifact/org.glassfish.jersey.core/jersey-client -->
<dependency>
   <groupId>org.glassfish.jersey.core</groupId>
   <artifactId>jersey-client</artifactId>
   <version>2.26</version>
</dependency>

 </dependencies>
 <build>
   <sourceDirectory>src</sourceDirectory>
   <plugins>
     <plugin>
       <artifactId>maven-compiler-plugin</artifactId>
       <version>3.7.0</version>
       <configuration>
         <source>1.8</source>
         <target>1.8</target>
       </configuration>
     </plugin>
     <plugin>
       <artifactId>maven-war-plugin</artifactId>
       <version>3.0.0</version>
       <configuration>
         <warSourceDirectory>WebContent</warSourceDirectory>
       </configuration>
     </plugin>
   </plugins>
 </build>
 <groupId>org.glassfish.jersey.core</groupId>
 <artifactId>jersey-client</artifactId>
</project>
step 7 :

add a class
Code:

package com.katonWeb;

import javax.ws.rs.GET;
import javax.ws.rs.Path;

@Path("/message")
public class helloWeb {

@GET
@Path("/msg")
public String getMsg() {return "katon gouka mekyaku";}

}
step 8 :
right click project name folder, java ee tools, generate stub to create the web.xml

problems :
1 error message when running :
Several ports (8005, 8080, 8009) required by Tomcat v9.0 Server at localhost are already in use. The server
may already be running in another process,
or a system process may be using the port. To start this server you will need to stop the other process
or change the port number(s).

2 what to put in the web.xml ?

3 in what url is the message ?

4 I tried reinstalling apache now my error is :

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