Find centralized, trusted content and collaborate around the technologies you use most.
Teams
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
我在jspx页面中有一个树表，它基于EO和VO，没有数据库。我以编程方式在树表中添加了父子记录。执行提交操作后，子行将从 GUI 中删除。请帮我防止这种情况。