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Thread: Issue while deploying JNLP application in Webspher Application Server.

  1. #1
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    Default Issue while deploying JNLP application in Webspher Application Server.

    Hi All,

    I am new to work on JNLP program. I have created a SWING program, JNLP file when i deploy the ear file i am getting 404 error. Please find the steps in details.


    1. Created a dynamic web project JWStartProject in eclipse
    2. Create a HelloWorld.java class under default package.
    import javax.swing.*;
    public class HelloWorld extends JFrame {
    private static final long serialVersionUID = 4968624166243565348L;
    private JLabel label = new JLabel("Hello Java Web START!");

    public HelloWorld() {
    super("Jave Web Start Example");
    this.setSize(350, 200);
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE );
    this.setLayout(null);
    }
    public void addButtons() {
    label.setSize(200, 30);
    label.setLocation(80, 50);
    this.getContentPane().add(label);
    }
    public static void main(String[] args) {
    HelloWorld exp = new HelloWorld();
    exp.addButtons();
    exp.setVisible(true);
    }
    }


    3. Run the HelloWorld.java and tested the result.
    4. Now exported HelloWorld.jar and signed HelloWorld.jar using KeyStore
    5. Added signed HelloWorld.jar under WEB-INF folder
    6. Now I created HelloWorld.jnlp and placed under WEB-INF folder
    <?xml version="1.0" encoding="utf-8"?>
    <jnlp spec="1.0+" codebase="https://127.92.92.1:9043/JWStartProject/"
    href="HelloWorld.jnlp">
    <information>
    <title>HelloWorld</title>
    <vendor>IBM - JWS example of HelloWorld</vendor>
    <description>HelloWorld - Example of JWS</description>
    <description kind="short">HelloWorld example</description>
    <offline-allowed/>
    </information>
    <resources>
    <j2se version="1.6+"/>
    <jar href="HelloWorld.jar"/>
    </resources>
    <application-desc main-class="HelloWorld"/>
    </jnlp>

    7. Now I created Index.html and placed under WEB-INF folder
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
    <HTML>
    <HEAD>
    <TITLE>index.html</TITLE>
    </HEAD>
    <BODY>
    <A href="HelloWorld.jnlp">Launch HelloWorld using JWS</A>
    </BODY>
    </HTML>

    8. web.xml contains following code.
    <?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlnssi="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">
    <display-name>JWStartProject</display-name>
    <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    </welcome-file-list>
    <servlet>
    <servlet-name>JnlpDownloadServlet</servlet-name>
    <servlet-class>com.sun.javaws.servlet.JnlpDownloadServlet</servlet-class>
    <init-param>
    <param-name> logLevel </param-name>
    <param-value> DEBUG </param-value>
    </init-param>
    </servlet>

    <servlet-mapping>
    <servlet-name>JnlpDownloadServlet</servlet-name>
    <url-pattern>*.jnlp</url-pattern>
    </servlet-mapping>

    <mime-mapping>
    <extension>jnlp</extension>
    <mime-type>application/x-java-jnlp-file</mime-type>
    </mime-mapping>

    <mime-mapping>
    <extension>jar</extension>
    <mime-type>application/java-archive</mime-type>
    </mime-mapping>
    </web-app>

    9. Now I exported this project as JWStartProject.war contains following code.
    10. Created Server in Websphere Admin console
    11. Deployed this war file under the server and started.
    12. I have added MIME types also.
    I am unable to launch the application. I am getting 404 errors. May I know where I went wrong?

    Regards
    Victor.


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Issue while deploying JNLP application in Webspher Application Server.

    404 error.
    Have you looked up the meaning of that error?
    What file is not being found?
    If you don't understand my answer, don't ignore it, ask a question.

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