最新回答 / weibo_倍儿帅QAQ_0347065
没有重写toString方法默认输出的就是哈希码,应该在Students.java中添加@Override public String toString() { return "Students [sid=" + sid + ", sname=" + sname + ", gender=" + gender + ", birthday=" + birthday + ", address=" + address + "]"; ...
2016-02-16
最新回答 / Andis
select users0_.uid as uid1_1_, users0_.username as username2_1_, users0_.passward as passward3_1_ from USERS users0_ where users0_.username=? and users0_.passward=?你自己看...
2016-02-08