转载自:https://blog.csdn.net/u011217058/article/details/57970587
右键工程,properties-> Project Facets-> 点convert to faceted..连接 ->
1.把Dynamic Web Moudle勾上
2.把java和javascript选项勾上
3.把jstl Libraries勾上
选择ok
转载自:https://blog.csdn.net/u011217058/article/details/57970587
右键工程,properties-> Project Facets-> 点convert to faceted..连接 ->
1.把Dynamic Web Moudle勾上
2.把java和javascript选项勾上
3.把jstl Libraries勾上
选择ok