First, put the GitHub repository https://github.com/kamoshika9999/HelloRemote.git

Introducing javaFX to Raspberry Pi

Raspberry Pi should be fixed IP. This site uses 192.168.9.112 as an example, but please replace it.
The default settings are used for the Raspberry Pi login name / password.

The normally included JDK is java-11-openjdk-armf. Since javaFX is excluded in this version, a customized JDK is introduced by the following method.

cd /home/pi
wget https://download.bell-sw.com/java/13/bellsoft-jdk13-linux-arm32-vfp-hflt.deb
sudo apt-get install ./bellsoft-jdk13-linux-arm32-vfp-hflt.deb
sudo update-alternatives --config javac
sudo update-alternatives --config java

Introduction of samba

Download and install the main unit

sudo apt-get install samba

Start nano of text editor

sudo nano /etc/samba/smb.conf

Added to the last line

[raspberry_pi]
comment = Share
path = /home/pi/samba
public = yes
read only = no
browsable = yes
force user = pi

Create a samba folder in / home / pi

sudo mkdir /home/pi/samba

Service start * It will be started automatically when Raspberry Pi starts next time.

sudo systemctl restart smbd

Windows 10 side settings

From "Turn Windows features on or off", check "SMB 1.0 / CIFD Client" and restart.
Enter \ 192.168.9.112 in Explorer and see if you can see the raspberry_pi folder

Note that the folder on the network is raspberry_pi, but it is samba when viewed from the Raspberry Pi itself.

Prepare xml file for Ant build

Right-click HelloRemote in Eclipse Package Explorer "Export"-[Java]-[Executable JAR file]-"Next"

Launch configuration Main-HelloRemote Export destination Raspberry Pi samba folder + file name "fxtest.jara" * File name is decided appropriately Check Save as Ant Script The location is the same as the workspace of the project, and the file name is build.xml. 3. When you press Finish, a warning will appear, but it is OK as it is 4. Right-click on a blank space in Package Explorer to refresh 5. Right click on build.xml and open it with-ANT editor

Change build.xml to the following The file path part needs to be rewritten

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<project default="remotedebug" name="Create Runnable Jar for Project HelloRemote">
    <!--this file was created by Eclipse Runnable JAR Export Wizard-->
    <!--ANT 1.7 is required                                        -->
    <!--define folder properties-->
    <property name="dir.buildfile" value="."/>
    <property name="dir.workspace" value="${dir.buildfile}/.."/>
    <property name="dir.jarfile" value="//192.168.9.112/raspberry_pi"/>

	<property name="raspberrypi" value="192.168.9.112" />
	<property name="raspberryfolder" value="/home/pi/samba" />
	<property name="username" value="pi" />
	<property name="password" value="raspberry" />
	
	<target name="create_run_jar">
        <jar destfile="${dir.jarfile}/fxtest.jar" filesetmanifest="mergewithoutmain">
            <manifest>
                <attribute name="Main-Class" value="application.Main"/>
                <attribute name="Class-Path" value="."/>
            </manifest>
            <fileset dir="${dir.buildfile}/bin"/>
            <zipfileset excludes="META-INF/*.SF" src="C:/OPENCV3/pleiades-4.8/pleiades/eclipse/plugins/org.eclipse.fx.ide.css.jfx8_3.3.0.201805280700.jar"/>
        </jar>
    </target>
	
	<target name="remotedebug" depends="create_run_jar">
		<echo>"Starting ${raspberrypi}:${raspberryfolder}/${jar.filename} in debug mode"</echo>
		<sshexec trust="true" host="${raspberrypi}" username="${username}" password="${password}" failonerror="true" usepty="true" command="DISPLAY=:0 java -Xdebug -Xrunjdwp:server=y,transport=dt_socket,address=*:4001,suspend=y -classpath ${raspberryfolder} -jar ${raspberryfolder}/fxtest.jar" />
	</target>
</project>

6-1. Explanation of the contents "Default =" remotedebug "" specifies the target to be executed last

<project default="remotedebug" name="Create Runnable Jar for Project HelloRemote">

"Target name =" remotedebug "depends =" create_run_jar "" depends on the target to be executed before this target In other words, the executable jar file is created first and deployed to Raspberry Pi.

<target name="remotedebug" depends="create_run_jar">

The part that executes commands with ssh using jsh 2 points DISPLAY =: 0 Nothing is displayed without this specification address = *: 4001 *: means access from any host. 4001 is a port number and can be changed if there is space

<sshexec trust="true" host="${raspberrypi}" username="${username}" password="${password}" failonerror="true" usepty="true" command="DISPLAY=:0 java -Xdebug -Xrunjdwp:server=y,transport=dt_socket,address=*:4001,suspend=y -classpath ${raspberryfolder} -jar ${raspberryfolder}/fxtest.jar" />
</target>

Set jsch to classpath to download. You can see the link as you scroll

Download 7-1.jsch-0.1.55.jar and save it in the applicable folder

7-2. Right-click HelloRemote and import 7-3. General-Select File System and Next Check 7-4.jsch-0.1.55.jar and complete 7-5. Make sure you have jsch-0.1.55.jar in Package Explorer 7-6. Right click on build.xml and run-configure external tools 7-7. Click the new icon after selecting ant build 7-8. Select the user entry on the "Classpath" tab and click the Add JAR button 7-9. Expand the tree, select jsck-0.1.55.jar and click the OK button 7-10. Added to classpath 8. Run Ant build Press the execute button. If you see the following on the console, you are successful 8-1. You can change the source and execute it from the icon from the second time onwards

If you do an ANT build, you can execute "build-> deploy to Raspberry Pi-> standby in remote JVM" in one shot, which is very convenient. The introduction is long, but if you do not do this, you will lose a lot of time There is a way to work with Maven, but it will be another opportunity

Run remote debugging

Right-click HelloRemote and select "Debug"-"Debug Configuration".
After selecting the remote Java application, click the new configuration icon
IP address of Raspberry Pi to host Port number specified in build.xml for port Check Allow remote VM termination Debug
You can do it like this. The terminal is not displayed on the Raspberry Pi side

If you know how to force it out, ask for information! !!

Breakpoint test Make sure that setting a breakpoint in the onTestBT method and pressing Button will switch the perspective to debug and pause

Next appointment

Explain GPIO control of Raspberry Pi Mainly how to use PI4J

2020.0727 kamoshika It has nothing to do with this article, but ... I'll post a link to the main channel https://www.youtube.com/channel/UCbtzwsQhTuUzW3ERoBSYZDw/