How to use OpenID to sign on with Google account

最新推荐文章于 2025-08-26 10:27:45 发布

最新推荐文章于 2025-08-26 10:27:45 发布 · 177 阅读

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#Google #Yahoo

近期，Google宣布支持OpenID，允许网站通过用户的Google账号进行登录，无需额外注册。针对此需求，一位开发者自行开发了一款名为JOpenID的轻量级Java库，该库体积小巧仅48KB，支持OpenID 2.0规范，并已通过Google账号进行了全面测试。

Recently Google announced its support for OpenID, called "Federated Login", to let any site enable their users to sign on by their Google accounts, without registrations.

This is really a good news, and for Java developers they can write some code to make the 3rd-part site to connect to Google. There are already lots of libaries that can be used in J2EE. However, after I do some evaluation of these libaries, I do not find a suitable libary. The well-known " OpenID4Java", is too large (46MB!), with dependencies on many other libaries. So I decided to write a small, but very lightweight libary to support OpenID 2.0 spec, called " JOpenID".

It is very small, with only48KBincluding both source & binary. You can download from http://code.google.com/p/jopenid/downloads/list.

Sample code is also provided:
http://code.google.com/p/jopenid/source/browse/trunk/JOpenId/src/com/javaeedev/openid/Main.java

It has been fully tested based on Google accounts. However, I think it also can support Yahoo! OpenID, but with little information provided by Yahoo! I do not test yet.