1.属性赋值

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1.Man{50+ }

Man man = new Man();

man.setXxx1(...);

man.setXxx2(...);

...

50

Man copy = new Man();

copy = man ;

copy.setXxx1(man.getXxx1());

copy.setXxx1(man.getXxx1());

copy.setXxx1(man.getXxx1());

copy.setXxx1(man.getXxx1());

2.利用jdbc结合反射，完成查询处理，返回集合。

动态

select id,name,age,xx from ... ;

Metadata

rs.get()