GAE (Google App Engine)+Spring MVC:how to solve the slow load jsp time issue

You right, but if you read the article the solution it is free and easy to try, simply update sdk to last version and use load-on-startup in web.xml . The warmup-requests-enabled feature makes the trick to speed up the application.

What he means is that the first time a JSP page is loaded it will be compiled on-the-fly which can be quite slow.

However, if that's your problem then the solution is simply to precompile the page statically. This can be done using org.apache.jasper.JspC. This won't only accelerate first-time loading of the class dramatically, but also slightly improve subsequent load times because the JSP servlet won't have to check file modification times to see whether the JSP has been touched in the meantime.

Sorry for my bad english.. it is not my language