java实现与数据库的连接..例如``有一张数据库的表``里面有几条数据``怎么用java将数据库表内的数据显示在java的表单属性内java实现对数据库的增,删,改,查.四种方法 -Implementation and the database connection java .. for example, `` there is a database table which has several data `` `` how to use java data within the da