eclipse引入httpServlet源码

1. 展开Apache Tomcat v7.0[Apache Tomcat v7.0] -> servlet-api.jar
2. 找到 -> http -> HttpServlet
3. 右键 servlet-api.jar -> properties -> Java Source Attachment -> 找到下载好的源码路径

源码地址

参考:

• http://blog.csdn.net/u013823429/article/details/66982245
• https://www.zhihu.com/question/35812310/answer/64578510