Changes for page Your First Project - Hello World
Last modified by Steve Peery on 2013/05/29 14:41
From version 4.1
edited by Pascal Robert
on 2011/12/27 06:47
on 2011/12/27 06:47
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To version 1.1
edited by Pascal Robert
on 2011/12/27 05:52
on 2011/12/27 05:52
Change comment:
There is no comment for this version
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... ... @@ -1,6 +1,6 @@ 1 1 For your first project, we will do the classic "Hello world" example. This tutorial is more for learning how the development tools works. 2 2 3 -First, we will create a new Wonder Application. In Eclipse, open the **File** menu, select **New** and select **Wonder Application**.3 +First, we will create a new Wonder Application. In Eclipse, open the **File** menu, open **New** and select **Wonder Application**. 4 4 5 5 [[image:NewWOProject.png||border="1"]] 6 6 ... ... @@ -8,60 +8,3 @@ 8 8 {{info}} 9 9 If the Wonder project types don't appear in the File->New menu, you are probably in a Java perspective instead of WOLips. 10 10 {{/info}} 11 - 12 -The project wizard will ask for the project name. Enter **HelloWorld**. Click **Finish**. 13 - 14 -[[image:SetProjectName.png||border="1"]] 15 - 16 -{{info}} 17 -Don't put spaces in the project name, Eclipse have a hard time with projects that have spaces in the file system path. 18 -{{/info}} 19 - 20 -The project have been created, you will see it in the **WO Explorer** tab. Expand it (click on the triangle next to the project name) and you will see the following folders: 21 - 22 -* **Sources**: this folder holds all of your Java source code. When you create a new project, that folder have 4 files: Application.java, Session.java, DirectAction.java and Main.java. 23 -* **JRE System Library**: don't touch this. 24 -* **Components**: this folder holds all of your Project Wonder components. 25 -* **Libraries**: if you have JARs, for example JDBC drivers, that you need for your project, put them in there. 26 -* **Resources**: that folder is for Project Wonder-specific files. A **Properties** file is added by default. 27 -* **WebServerResources**: that folder is for "static" content that you use in your components, be it images, CSS or JavaScript files. 28 -* **woproject**: this folder holds 6 files that the Ant builder use to include or exclude files and folders in the build product. 99% of the time, you don't need to customize those files. 29 -* **build.xml**: This is the XML file to build the project with Ant. Note that this is to build a "product", when you run the project in Eclipse, it use the incremental builder instead of Ant. 30 - 31 -So let's run the project. Expand the **Sources** folder, expand the **your.app** package, right-click on **Application.java** and select **Run As** > **WOApplication**. This action will start the project and it will create a run configuration for Eclipse. 32 - 33 -After a couple of seconds, the project will be started and a page will open in your favorite browser. You just run your first Project Wonder application, congratulations 34 - 35 -Now, let's make the "Hello World" to be dynamic. If the HelloWorld application is still running, terminate it by clicking on the square red button in the **Console** tab. 36 - 37 -In the project, open the **Sources** folder, open the **your.app.components** package and open **Main.java**. **Main.java** is the Java part of a Project Wonder component. If you check the content of the **Related** tab, you will see that **Main.java** is related to other files like **Main.wo** and **Main.api**, it's a good way to find out if a Java class is part of a component. 38 - 39 -In the **Main.java** editor tab, you will need to put one variable + one setter + one getter. Complete code: 40 - 41 -{{code language="java" theme="Eclipse"}} 42 -private String myTextForDisplay = "Hello World from the Java world"; 43 - 44 -public String myTextForDisplay() { 45 - return myTextForDisplay; 46 -} 47 - 48 -public void setMyTextForDisplay(String myTextForDisplay) { 49 - this.myTextForDisplay = myTextForDisplay; 50 -} 51 -{{/code}} 52 - 53 -Save the file. 54 - 55 -So now we have a variable to display the content of a string. The next step is to open the HTML part of the component to actually display the string. In the **Related** view, double-click on the **Main.wo** file. This action will open the component in the Component Editor. 56 - 57 -Remove the Hello World text from the HTML and replace it with: 58 - 59 -{{code}} 60 -<wo:str value = "$myTextForDisplay" /> 61 -{{/code}} 62 - 63 -And save your modifications. You are now ready to run the application again. The first time you ran the application, it created a run configuration inside Eclipse, so to run the application again, click on the green circle with a white arrow in the toolbar, and select **HelloWorld**. 64 - 65 -The application is now displaying the string for the Java variable You can terminate the application. 66 - 67 -Final step: making the string truly variable by having a small text field to update the string. To do so, go back into the Main component editor view and just after the