我相信很多同学关于数据字典的问题困扰很久了，今天就讲述一下地区字典的构建。
移动端将 area.json 文件放到合适位置，主要考虑到客户体验方面。
服务端将文件放到D盘或合适的地方，读取文件
一、关于json文件的处理
/**
* 解析 省市区 JSON
*
* @param area_json
* @return
*/
@RequestMapping(value=Route.System.FORMAT_AREA_JSON,method=RequestMethod.POST)
@ResponseBody
public Response format_area_json() {
log.info("infoMsg:--- 解析 省市区 JSON开始");
Response reponse = this.getReponse();
String sname = "";
// 读取nameID.txt文件中的NAMEID字段（key）对应值（value）并存储
try {
StringBuilder stringBuilder=new StringBuilder();
BufferedReader brname = new BufferedReader(new FileReader("D:/database/area.json"));
while ((sname = brname.readLine()) != null) {
stringBuilder.append(sname); // 将对应value添加到链表存储
}
brname.close();
System.out.println(stringBuilder);
if(null != stringBuilder) {
System.out.println(stringBuilder);
}
JSONArray object = JSON.parseArray(stringBuilder.toString());
for (Iterator provnce = object.iterator(); provnce.hasNext();) {
JSONObject job = (JSONObject)provnce.next();
String name = job.get("name").toString();
String id = job.get("id").toString();
System.out.println(id + ":" + name);
SystemArea province = new SystemArea(id,name,"省");
systemEntityService.save(province);
JSONArray city = JSON.parseArray(job.get("city").toString());
for (Iterator citys = city.iterator(); citys.hasNext();) {
JSONObject city_obj = (JSONObject)citys.next();
String city_name = city_obj.get("name").toString();
String city_id = city_obj.get("id").toString();
System.out.println(city_id + ":" + city_name);
SystemArea cities = new SystemArea(city_id,city_name,"市");
systemEntityService.save(cities);
JSONArray area = JSON.parseArray(city_obj.get("area").toString());
for (Iterator areas = area.iterator(); areas.hasNext();) {
JSONObject area_obj = (JSONObject)areas.next();
String area_name = area_obj.get("name").toString();
String area_id = area_obj.get("id").toString();
System.out.println(area_id + ":" + area_name);
SystemArea arearry = new SystemArea(area_id,area_name,"地区");
systemEntityService.save(arearry);
}
}
}
log.info("infoMsg:--- 解析 省市区 JSON结束");
return reponse.success();
} catch (Exception e) {
log.error("errorMsg:--- 解析 省市区 JSON 失败" + e.getMessage());
return reponse.failure(e.getMessage());
}
}关于上述工具类，有俩点技术点
1. 一个是fastjson的使用，
2. 一个是I/O流的读取
随时随地看视频
