eclipse +jsp+ servlet+MySQL省市县 三级菜单的查询

上传者: zhang8882554 | 上传时间: 2021-05-06 21:28:37 | 文件大小: 1MB | 文件类型: ZIP
采用Eclipse 编写的关于省市县三级菜单采用JSP +servlet+MYSQL ,数据库表的数据文件在src文件夹中 mysql> show tables; +----------------+ | Tables_in_area | +----------------+ | area | | cities | | provinces | +----------------+ 3 rows in set (0.00 sec) mysql> desc provinces; +----------+--------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +----------+--------------+------+-----+---------+----------------+ | id | int(11) | NO | PRI | NULL | auto_increment | | pid | char(6) | NO | | NULL | | | province | varchar(100) | NO | | | | +----------+--------------+------+-----+---------+----------------+ 3 rows in set (0.00 sec) mysql> desc cities; +-------+-------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +-------+-------------+------+-----+---------+----------------+ | id | int(11) | NO | PRI | NULL | auto_increment | | cid | char(6) | NO | | NULL | | | city | varchar(40) | NO | | NULL | | | pid | char(6) | NO | | NULL | | +-------+-------------+------+-----+---------+----------------+ 4 rows in set (0.00 sec) mysql> desc area; +-------+-------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +-------+-------------+------+-----+---------+----------------+ | id | int(11) | NO | PRI | NULL | auto_increment | | aid | char(6) | NO | | NULL | | | area | varchar(40) | NO | | NULL | | | cid | char(6) | NO | | NULL | | +-------+-------------+------+-----+---------+----------------+ 4 rows in set (0.00 sec)

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