问题
I am using the spring frame work tutorial, I am in the part I have to add the external JAR but I seem to be missing some like org.springframework.asm-3.1.0.M2, antlr-runtime-3.0.1. SO what have I done wrong?
回答1:
Download those dependent jar files.
Right click on your project -> Build Path -> Add External Jars
Follow this tutorial to setup java build path in eclipse.

回答2:
Well first of all, download that jar from this link:
http://www.java2s.com/Code/Jar/a/Downloadantlrruntime301jar.htm
and then Right click on your project and Goto BUIld path and select ADD External Jar.
Right Click -> Build path -> add externalJars
and even you can add it into the /WEB-INF/lib folder too.
and that way program will work error will be solved.
来源:https://stackoverflow.com/questions/18870213/adding-external-jar-to-eclipse