Executable jar does not see images

Question

I`m developing simple java application with visualization. I have to package it to jar with maven. My project structure is:
src
---main
--------java
-----------com.chess
--------resources
-----------Images

I tried to use images like : Images\image.jpg but its missing. How i can use images?

This is my pom.xml:

<?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>ChessApp</groupId>
<artifactId>ChessApp</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>

<build>
    <plugins>
        <plugin>
            <artifactId>maven-assembly-plugin</artifactId>
            <configuration>
                <descriptorRefs>
                    <descriptorRef>jar-with-dependencies</descriptorRef>
                </descriptorRefs>
                <archive>
                    <manifest>
                        <mainClass>com.chess.Main</mainClass>
                    </manifest>
                </archive>
            </configuration>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>single</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

Have you looked manually in the jar? How are you accessing the images? — Captain Giraffe, Nov 27 '13 at 19:49
I tried to access like: "Images\\images.jpg" It puts Images folder on one layer with com and META-INF folders — Srw, Nov 27 '13 at 19:52
Then you need to show how you are accessing the images. You should be using the classloader. And this is unrelated to maven. — Captain Giraffe, Nov 27 '13 at 19:53
layout.setIcon(new ImageIcon("Images\\BlackRockAndBlackBoard.jpg")); like this — Srw, Nov 27 '13 at 19:54

score 1 · Accepted Answer · edited May 23 '17 at 12:28

1

By your comment,

layout.setIcon(new ImageIcon("Images\\BlackRockAndBlackBoard.jpg"));

ImageIcon treats the string as a filename, you need to take a gander at Get a resource using getResource()

Then use the url for constructing the ImageIcon.

URL imageUrl = YourClassName.class.getResource("/Images/ImageName.jpg");
layout.setIcon(new ImageIcon( imageUrl ));

The URL is allowed as a constructor argument as you can see here http://docs.oracle.com/javase/7/docs/api/javax/swing/ImageIcon.html#ImageIcon%28java.net.URL%29.

edited May 23 '17 at 12:28

Community

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answered Nov 27 '13 at 20:00

Captain Giraffe

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Yes this is answer. What other ways to choose "main" class in jar? Without plugin. – Srw Nov 27 '13 at 20:17
@Srw, you can just edit your manifest.MF by using the jar tool, resign it if necessary. If you have another question you should ask it as a new question here on SO. – Captain Giraffe Nov 27 '13 at 21:21

Executable jar does not see images

1 Answers1