Struts2的文件上传实例，里面有两种上传方式。自己看吧-Struts2 file upload instances, there are two kinds of uploads. See for yourself

自己写的实现文件上传功能，适合初学者学习,总之自己看代码吧，我把需要的jar包都放进去了-Write your own file upload function, suitable for beginners to learn, in short, look at the code it, I need to go into the jar packages