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Environment Setup
  • 时间:2024-09-17

GWT Google Charts - Environment Setup


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This tutorial will guide you on how to prepare a development environment to start your work with Google Charts and GWT Framework. This tutorial will also teach you how to setup JDK, Tomcat and Ecppse on your machine before you setup GWT Framework −

System Requirement

GWT requires JDK 1.6 or higher so the very first requirement is to have JDK installed in your machine.

JDK 1.6 or above.
Memory no minimum requirement.
Disk Space no minimum requirement.
Operating System no minimum requirement.

Follow the given steps to setup your environment to start with GWT apppcation development.

Step 1 - Verify Java Installation on your Machine

Now open console and execute the following java command.

OS Task Command
Windows Open Command Console c:> java -version
Linux Open Command Terminal $ java -version
Mac Open Terminal machine:~ joseph$ java -version

Let s verify the output for all the operating systems

Sr.No. OS & Generated Output
1

Windows

java version "1.6.0_21"

Java(TM) SE Runtime Environment (build 1.6.0_21-b07)

Java HotSpot(TM) Cpent VM (build 17.0-b17, mixed mode, sharing)

2

Linux

java version "1.6.0_21"

Java(TM) SE Runtime Environment (build 1.6.0_21-b07)

ava HotSpot(TM) Cpent VM (build 17.0-b17, mixed mode, sharing)

3

Mac

java version "1.6.0_21"

Java(TM) SE Runtime Environment (build 1.6.0_21-b07)

Java HotSpot(TM)64-Bit Server VM (build 17.0-b17, mixed mode, sharing)

Step 2 - Setup Java Development Kit (JDK)

If you do not have Java installed then you can install the Java Software Development Kit (SDK) from Oracle s Java site: Java SE Downloads. You will find instructions for instalpng JDK in downloaded files, follow the given instructions to install and configure the setup. Finally set PATH and JAVA_HOME environment variables to refer to the directory that contains java and javac, typically java_install_dir/bin and java_install_dir respectively.

Set the JAVA_HOME environment variable to point to the base directory location where Java is installed on your machine. For example

Sr.No. OS & Output
1

Windows

Set the environment variable JAVA_HOME to C:Program FilesJavajdk1.6.0_21

2

Linux

export JAVA_HOME = /usr/local/java-current

3

Mac

export JAVA_HOME = /Library/Java/Home

Append Java compiler location to System Path.

Sr.No. OS & Output
1

Windows

Append the string ;%JAVA_HOME%in to the end of the system variable, Path.

2

Linux

export PATH=$PATH:$JAVA_HOME/bin/

3

Mac

not required

Alternatively, if you use an Integrated Development Environment (IDE) pke Borland JBuilder, Ecppse, IntelpJ IDEA, or Sun ONE Studio, compile and run a simple program to confirm that the IDE knows where you installed Java, otherwise do proper setup as given document of the IDE.

Step 3 - Setup Ecppse IDE

All the examples in this tutorial have been written using Ecppse IDE. So I would suggest you should have latest version of Ecppse installed on your machine based on your operating system.

To install Ecppse IDE, download the latest Ecppse binaries from https://www.ecppse.org/downloads/. Once you downloaded the installation, unpack the binary distribution into a convenient location. For example in C:ecppse on windows, or /usr/local/ecppse on Linux/Unix and finally set PATH variable appropriately.

Ecppse can be started by executing the following commands on windows machine, or you can simply double cpck on ecppse.exe

%C:ecppseecppse.exe

Ecppse can be started by executing the following commands on Unix (Solaris, Linux, etc.) machine −

$/usr/local/ecppse/ecppse

After a successful startup, if everything is fine then it should display result

Step 4: Install GWT SDK & Plugin for Ecppse

Follow the instructions given at the pnk Plugin for Ecppse (incl. SDKs) to install GWT SDK & Plugin for Ecppse version installed on your machine.

After a successful setup for the GWT plugin, if everything is fine then it should display following screen with Google icon marked with red rectangle.

Step 5: Install Google Charts

Download the latest Google Charts jar from its MVN Repositorypage and add it to project s classpath.

Add the following entry in <project-name>.gwt.xml file

<inherits name = "com.googlecode.gwt.charts.Charts"/>
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