tocmat 提示构件未成功部署
可以运行tomcat的配置文件
构件
Facet
模块
找到原因了
@WebServlet(name = "Day004ServletGetAll",urlPatterns = "day04/getAll")
// day04/getAll 应该写为 /day/04/getAll
@WebServlet(name = "Day004ServletGetAll",urlPatterns = "day04/getAll")
// day04/getAll 应该写为 /day/04/getAll