jcpca

java版本用于从中国地址提取省、市、区（县）
实现和使用主要参考：https://github.com/DQinYuan/chinese_province_city_area_mapper
分词器工具：https://github.com/hankcs/AhoCorasickDoubleArrayTrie
省市区数据来自数据来自国家统计局网站公开数据

Get Started

CpcaExtractor cpcaExtractor = CpcaExtractors.builder().withCpcaCvsFile("adcodes.csv").build();
CpcaSeg cpcaSeg = cpcaExtractor.transform("浙江省杭州市拱墅区祥园路300号");
System.out.println(cpcaExtractor.encodeJson(cpcaSeg));

结果显示：

{"provinceName":"浙江省","cityName":"杭州市","areaName":"拱墅区","cpcaCode":"330105","address":"祥园路300号","provinceNameIndex":{"beginIndex":0,"endIndex":3},"cityNameIndex":{"beginIndex":3,"endIndex":6},"areaNameIndex":{"beginIndex":6,"endIndex":9}}

中国行政区（县）这一级别有重名，只有区县时没法确定是哪个区（县），这个时候需要通过umap参数来指定用哪个区（县)，比如解析朝阳区的地址：

Map<String, String> umap = new HashMap<>();
umap.put("朝阳区", "110105");
CpcaSeg cpcaSeg = cpcaExtractor.transform("朝阳区汉庭酒店大山子店", umap);
System.out.println(cpcaExtractor.encodeJson(cpcaSeg));

结果显示：

{"provinceName":"吉林省","cityName":"长春市","areaName":"朝阳区","cpcaCode":"220104","address":"汉庭酒店大山子店","areaNameIndex":{"beginIndex":0,"endIndex":3}}