The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path login.jsp /day12_estore/WebRoot line 1 JSP Problem

解决:

1. 我们遇到的错误显示如下:

2.我们右击有错误提示的文件夹,如下:

3.我们点击”配置构建路径“,如下:

4.我们再点击”添加库“,如下:

5.我们选中上图中标出的选项,再点击下一步,如下:

6.我们再点击”完成“,如下:

7.我们再点击”正常“,即可完成设置。这样我的错误就会消失了,如下:

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