地区文本搜索问题
首页是这样的搜索框,用户输入出发地和目的地就可以列出相关的信息,
但是后台数据库信息的表中地址是存的地区表中对应的地区id,想问有木有什么方法可以前台输入文本,后台可以搜出对应的信息呢(想了一个方法就是添加信息时把出发地和目的地的文本各存在信息表的一个字段中,然后搜索此字段,但是信息多了的话用like是否会有性能的问题.本人小白,求指教)
地区信息是全国的省市区三级
回复内容:
首页是这样的搜索框,用户输入出发地和目的地就可以列出相关的信息,
但是后台数据库信息的表中地址是存的地区表中对应的地区id,想问有木有什么方法可以前台输入文本,后台可以搜出对应的信息呢(想了一个方法就是添加信息时把出发地和目的地的文本各存在信息表的一个字段中,然后搜索此字段,但是信息多了的话用like是否会有性能的问题.本人小白,求指教)
地区信息是全国的省市区三级
这才多大个问题规模嘛。
每个省做一个JSON文件,一开始的HTML只显示省级,选择省级的时候动态加载该省的JSON文件,用于填充后两个下拉框。
http://blog.segmentfault.com/shamiao/1190000000329012
其实我一直在想:有没有人制作并维护一个json格式省市县列表的静态文件库,然后提交到staticfile.org等CDN上去呢……?
答这个问题,总要先知道你的出发地和到达地,数据量有多大个规模。请补充你的问题。
解法随着规模变化而明显必须变动。例如在300以下,最优方法一般是整体下载到客户端后JavaScript前台搜索。但多了可能就行不通,必须另想办法。

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