为此,我使用了Spring3 (MVC)和Hibernate 4。IAutoComplete place = new AutoComplete<Place>(Place.class);如果我运行代码,我会得到“找不到默认构造函数如果我添加一个默认的构造函数,我会在下面这一行得到空指针异常:
Session
我正在尝试使用以下代码从Yahoo下载数据:getSymbols("WOW", auto.assign=F)Error in download.file(paste(yahoo.URL, "s=", Symbols.name, "&a=", from.m, : cannot downloadall files
In addition: Wa