Gwt Googlecharts 简明教程

GWT Google Charts Tutorial

Google Java Module 是一个基于 Java 的开源库，可在 GWT 应用程序中提供优雅而功能强大的 Google 图表可视化效果，并且可以与 GWT 小部件库一起使用。有一些章节讨论了 Google 图表的所有基本组件，并在 GWT 应用程序中提供了合适的示例。

Google Java Module is a open source java based library to provides an elegant and feature rich Google Charts visualizations within a GWT application and can be used along with GWT widget libraries. There are chapters discussing all the basic components of Google Charts with suitable examples within a GWT application.

Google Charts 是一个基于纯 JavaScript 的图表库，旨在通过添加交互式图表功能来增强 Web 应用程序。Google 图表提供了种类繁多的图表。例如，折线图、样条曲线图、面积图、条形图、饼图等。本教程将教授您 Google 图表的基本知识。

Google Charts is a pure JavaScript based charting library meant to enhance web applications by adding interactive charting capability. Google Charts provides a wide variety of charts. For example, line charts, spline charts, area charts, bar charts, pie charts and so on. This tutorial will teach you the basics of Google Charts.

Google Web Toolkit (GWT) 是一个用于构建和优化复杂的基于浏览器的应用程序的开发工具包。Google 的许多产品都使用 GWT，包括 Google AdWords 和 Orkut。GWT 是一个开源工具包，完全免费，全球有数千名开发者使用它。它获得 Apache License 2.0 许可。

Google Web Toolkit (GWT) is a development toolkit for building and optimizing complex browser-based applications. GWT is used by many products at Google, including Google AdWords and Orkut. GWT is an open source, completely free, and used by thousands of developers around the world. It is licensed under the Apache License version 2.0.

Audience

本教程专为愿意在基于 GWT 的应用程序中以简单轻松的步骤集成 Google 图表的软件专业人士设计。本教程将帮助您了解 Google 图表和 GWT 概念，本教程完成后，您将掌握该专业领域的中间水平，从中可以提升到更高水平。

This tutorial is designed for Software Professionals who are willing to integrate Google Charts in a GWT based application in simple and easy steps. This tutorial will give you an understanding of the Google Charts and GWT concepts and after completing this tutorial you will be at an intermediate level of expertise from where you can take yourself to a higher level of expertise.

Prerequisites

在继续本教程之前，您应该对 Java 编程语言、文本编辑器和程序执行等方面有基本的了解。由于我们将使用 GWT 开发基于 Web 的应用程序，如果您了解其他 Web 技术，如 HTML、CSS 和 AJAX，那就更好了。

Before proceeding with this tutorial, you should have a basic understanding of Java programming language, text editor, and execution of programs, etc. Because we are going to develop web-based applications using GWT, it will be good if you have an understanding of other web technologies such as HTML, CSS, and AJAX.