这篇文章骂认证的时候顺便把JSP骂了一通。 Technical Certifications: What Kind Of Bull Are They? Not only that, the number one reason I liked Rails when I first saw it is because I had looked into getting a J2EE/JSP certification. They make you learn all of the JSP APIs, and it's like this archaeological dig. You go down a layer, there's a terrible API that you wouldn't be able to use in real life. You go down another layer, there's an even worse API that you wouldn't be able to use in real life for the same reasons, plus additional reasons. Then you do it all again. There's this whole sequence of terrible APIs stacked on top of each other, where Sun came up with something, it sucked, and then they came up with something completely different instead, which sucked only slightly less, but still continued supporting the earlier thing, because they couldn't admit it sucked, and they had customers on it. And the funny part is, you don't just have to learn all these crap APIs. You also have to learn Sun's excuses for them. I'm serious. Those are questions on the exam. As long as you actually think about what you're reading, studying for the JSP cert is an incredible education in how to up Web APIs really, really badly.