我用ext做了两个项目，期间遇到好多问题，也走了很多湾路。项目现在已接近尾声了。为了总结一下ext,我特别做了一个java+struts2+ext+json的完整的例子，希望对初学ext的人各位朋友能有点帮助。 -I used to do two projects ext, many problems encountered during, but also take a lot of Bay Road. Project is now drawing to a close. To sum