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Hello World! Tutorial

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Hello World! Tutorial

This topic is for new Logi developers. It guides you through the process of building a simple Logi Info application.

Requirements

This tutorial assumes that you have:

  • Microsoft IIS web server and .NET Framework 4.x installed, - OR -
  • A supported Java web server and the Oracle JDK or OpenJDK 8, 11, 12, 13, or 14
    Oracle has changed its Java usage policies - see Java Usage Policy for important information.
  • And an un-expired trial license, or a regular or OEM license file, installed in the
    <Logi Info installation folder>\LogiStudio folder, which defaults to:
    C:\Program Files\LogiXML IES Dev\LogiStudio.

Tutorial

Begin by launching Logi Studio, using its desktop icon or StartAll ProgramsLogi InfoStudio.

  1. In Logi Studio, close the Getting Started dialog box and click New Application in the Welcome Panel, as shown above.
  1. Logi Studio is capable of producing both .NET and Java web applications. For this tutorial, we'll select the .NET option, as shown above; however, comments are included in the following steps for Java applications.
  1. Provide an application name: HelloWorld - DO NOT insert a space between the two words and be sure to use the exact capitalization shown!

    Choose the location for the new HelloWorld application folder. If you're using the IIS web server, for simplicity, use the default, C:\Inetpub\wwwroot, and the wizard will create the new Logi application folder there.

    If you're using a Java-based web server, browse to its standard web application location. For example, for a default installation of Tomcat 7 this would be: C:\Program Files\Apache Software Foundation\Tomcat 7.0\webapps.
    Port 8080 will be used by default in the application's URL.


    For a JBOSS server, and other Java servers that use auto-deploy, append a ".war" extension to the application folder name, as shown above.

    Click OK to create the application. The progress indicator, shown above, will appear and required sub-folders and files will be created in your HelloWorld folder. Java web servers may complain as the wizard adds files to the folders; this is normal behavior.
  1. The Prepare a New Application Wizard, shown above, will start. The next step is to configure the basic application settings and register it with your web server. Click Next.


  1. The wizard will now run the web server diagnostics and configure your application, described in the dialog box shown above. Click Next.




    The results of the diagnostic tests will displayed, as shown above. If all test results are "OK", click Next.
    The failure of any test indicates that something is wrong with your web server environment's ability to run the new application. This could be caused by a number of things, such as failing to install the new Logi version as an Administrator, or having incorrect file permissions on the application folder, or failing to have the correct version of .NET installed. Contact Logi Support for assistance.
  1. Next, you'll be asked to select a Theme for your application. Use the default, Signal, and click Next.


  1. Next, enter a caption for the application, and click Next.

  1. When the wizard prompts you to create a Data Visualization, click Cancel.



  1. In Studio's Application Panel (at the upper-left), find and double-click the Default report definition. It will open in the center of the screen, in the Workspace Panel.


  1. In the Default definition, right-click the Body element and navigate the pop-up menus as shown above, finally clicking on the Label menu item. A Label element will be added to the definition.


  1. Click the Label element and, in the Attributes Panel, enter the text "Hello World!" in the Caption attribute, as shown above. Then, in the Class attribute, select ThemeTextLargest from its pull-down list of style class options.


  1. Finally, click the Preview tab at the bottom of the Workspace Panel to save your definition and run the Default report. Your "Hello World" message should be displayed, as shown above.

Congratulations on completing your first Logi report!

Possible Errors

Did you receive an error when you tried to preview the report? Here's how to proceed: Error: Please specify a URL in "_Settings/Path.AppPath"
It appears the wizard failed to fill-in the proper value for the Application Path. Open the _Settings definition, and select the Path element. Fill-in the value for the Application Path attribute with:

    http://localhost/HelloWorld(.NET)
    http://localhost:8080/HelloWorld(Java)

Save the definition and try previewing again.

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