I've got a problem that I'm stuck on. How do I programmatically get the executing jar file's absolute path?<BR><BR>I'm trying to look for a folder that is relative to the jar file's directory but I'm ...

看评论说在/WEB/INF目录下添加 jstl.jar 包，可是添加不进来（显示不能添加），杂么解决？