SWT项目搭建、打包(可执行jar)、部署(包装exe)

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简述

SWT与Eclipse插件（RCP）不同。SWT比较原生，后者是基于前者而起的一个框架，它能结合Eclipse提供的功能自动的打成一个exe的可执行文件。而SWT需要做额外的操作。

本文记述了SWT项目搭建、打包（可执行jar）、部署（exe）的全过程。

一、SWT 项目搭建

1. 创建java项目

• File -> new -> java project 或如下图创建 Java Project
• 填写项目信息
  
  
• 我用的是jdk11，提示时候创建swt03的模块，点击 don't create
  
  
• 生成的标准 java 项目如下图
  
  
• 在根目录下新建lib包，以便存放扩展jar包，此时项目结构如下
  
  

2. 制作swtjar包

• 如图找到Eclipse安装目录的 plugins 目录
  
  
• 使用org.eclipse.swt寻找 org.eclipse.swt.win32.win32.x86_64_xxxxxxxxxxxx.jar，如下图所示
  
  
• 将org.eclipse.swt.win32.win32.x86_64_xxxxxxxxxxxx.jar拷到文件夹lib中，并将其改名为swt.jar
• 选中swt.jar,右击->Build Path->add to Build Path ，此时项目结构如下图
  
  

  可以此为例添加任何需要的jar

3. 制作 swt UI

• src下创建包，比如com.xzbd
• 在包中创建类SWT01.java ，如下

package com.xzbd; import org.eclipse.swt.*; import org.eclipse.swt.widgets.*; import org.eclipse.swt.layout.*; import org.eclipse.swt.events.*; import org.eclipse.swt.graphics.*; public class SWT03 { 
    static Display display; static Shell shell; static Text dogName; static Combo dogBreed; static Canvas dogPhoto; static Image dogImage; static List categories; static Text ownerName; static Text ownerPhone; public static void main(String[] args) { 
    display = new Display(); shell = new Shell(display); shell.setText("Dog Show Entry"); GridLayout gridLayout = new GridLayout(); gridLayout.numColumns = 3; shell.setLayout(gridLayout); new Label(shell, SWT.NONE).setText("Dog's Name:"); dogName = new Text(shell, SWT.SINGLE | SWT.BORDER); GridData gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL); gridData.horizontalSpan = 2; dogName.setLayoutData(gridData); new Label(shell, SWT.NONE).setText("Breed:"); dogBreed = new Combo(shell, SWT.NONE); dogBreed.setItems(new String [] { 
   "Collie", "Pitbull", "Poodle", "Scottie"}); dogBreed.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL)); Label label = new Label(shell, SWT.NONE); label.setText("Categories"); label.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_CENTER)); new Label(shell, SWT.NONE).setText("Photo:"); dogPhoto = new Canvas(shell, SWT.BORDER); gridData = new GridData(GridData.FILL_BOTH); gridData.widthHint = 80; gridData.heightHint = 80; gridData.verticalSpan = 3; dogPhoto.setLayoutData(gridData); dogPhoto.addPaintListener(new PaintListener() { 
    public void paintControl(final PaintEvent event) { 
    if (dogImage != null) { 
    event.gc.drawImage(dogImage, 0, 0); } } }); categories = new List(shell, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL); categories.setItems(new String [] { 
   "Best of Breed", "Prettiest Female", "Handsomest Male","Best Dressed", "Fluffiest Ears", "Most Colors", "Best Performer", "Loudest Bark", "Best Behaved","Prettiest Eyes", "Most Hair", "Longest Tail","Cutest Trick"}); gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL); gridData.verticalSpan = 4; int listHeight = categories.getItemHeight() * 12; Rectangle trim = categories.computeTrim(0, 0, 0, listHeight); gridData.heightHint = trim.height; categories.setLayoutData(gridData); Button browse = new Button(shell, SWT.PUSH); browse.setText("Browse..."); gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL); gridData.horizontalIndent = 5; browse.setLayoutData(gridData); browse.addSelectionListener(new SelectionAdapter() { 
    public void widgetSelected(SelectionEvent event) { 
    String fileName = new FileDialog(shell).open(); if (fileName != null) { 
    dogImage = new Image(display, fileName); } } }); Button delete = new Button(shell, SWT.PUSH); delete.setText("Delete"); gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_BEGINNING); gridData.horizontalIndent = 5; delete.setLayoutData(gridData); delete.addSelectionListener(new SelectionAdapter() { 
    public void widgetSelected(SelectionEvent event) { 
    if (dogImage != null) { 
    dogImage.dispose(); dogImage = null; dogPhoto.redraw(); } } }); Group ownerInfo = new Group(shell, SWT.NONE); ownerInfo.setText("Owner Info"); gridLayout = new GridLayout(); gridLayout.numColumns = 2; ownerInfo.setLayout(gridLayout); gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL); gridData.horizontalSpan = 2; ownerInfo.setLayoutData(gridData); new Label(ownerInfo, SWT.NONE).setText("Name:"); ownerName = new Text(ownerInfo, SWT.SINGLE | SWT.BORDER); ownerName.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); new Label(ownerInfo, SWT.NONE).setText("Phone:"); ownerPhone = new Text(ownerInfo, SWT.SINGLE | SWT.BORDER); ownerPhone.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); Button enter = new Button(shell, SWT.PUSH); enter.setText("Enter"); gridData = new GridData(GridData.HORIZONTAL_ALIGN_END); gridData.horizontalSpan = 3; enter.setLayoutData(gridData); enter.addSelectionListener(new SelectionAdapter() { 
    public void widgetSelected(SelectionEvent event) { 
    System.out.println("/nDog Name: " + dogName.getText()); System.out.println("Dog Breed: " + dogBreed.getText()); System.out.println("Owner Name: " + ownerName.getText()); System.out.println("Owner Phone: " + ownerPhone.getText()); System.out.println("Categories:"); String cats[] = categories.getSelection(); for (int i = 0; i < cats.length; i++) { 
    System.out.println("/t" + cats[i]); } } }); shell.pack(); shell.open(); while (!shell.isDisposed()) { 
    if (!display.readAndDispatch()) display.sleep(); } if (dogImage != null) { 
    dogImage.dispose(); } } } 

• 右击 > run > java application,得到如下UI
  
  
• 至此，项目搭建完成，此时项目结构
  
  

二、打包（可执行jar）

打包的方式有很多，此处使用Eclipse export方式

• 右击 > Export ,打开如下对话框
  
  
• 如上图选择Runnable JAR file ,点击 Next 。
  
  
• 点击 finish ,打开 设定的文件找到 run-swt03.jar ,双击即可执行，效果如下
  
  

三、部署（包装为exe）

• JSmooth 官网
  
  
• 下载页面
  
  
• 安装JsMooth

双击运行JsMooth,根据自己喜好进行安装。

• 包装jar为exe

  运行Jsmooth
  
  Skeleton设置
  
  Executable设置
  这里定义了最终打包后的文件名及保存目录、图标等。
  
  Application设置
  
  
  
  
  
  
  
  
  

  JVM设置
  
  

注：jdk-11的Jre需要自己生成,命令及操作如下

以管理员身份进入CMD,进入java安装目录，运行以下命令。

bin\jlink.exe --module-path jmods --add-modules java.desktop --output jre 

生成的结果

双击文件即可运行