Java 代码：使用正则表达式从字符串中提取省市区镇信息

以下是一个使用 Java 代码和正则表达式从字符串中提取省、市、区、镇信息的实现示例。

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class LocationExtractor {
    private static final String PROVINCE_REGEX = "(?<province>[^省]+省)";
    private static final String CITY_REGEX = "(?<city>[^市]+市)";
    private static final String DISTRICT_REGEX = "(?<district>[^区]+区)";
    private static final String TOWN_REGEX = "(?<town>[^镇]+镇)";

    public static void main(String[] args) {
        String input = "我住在湖北省武汉市洪山区关山大道123号";
        Location location = extractLocation(input);
        System.out.println(location);
        // 输出：Location{province='湖北', city='武汉', district='洪山', town='关山大道'}
    }

    public static Location extractLocation(String input) {
        String province = extractGroup(input, PROVINCE_REGEX, "province");
        String city = extractGroup(input, CITY_REGEX, "city");
        String district = extractGroup(input, DISTRICT_REGEX, "district");
        String town = extractGroup(input, TOWN_REGEX, "town");
        return new Location(province, city, district, town);
    }

    private static String extractGroup(String input, String regex, String groupName) {
        Pattern pattern = Pattern.compile(regex);
        Matcher matcher = pattern.matcher(input);
        if (matcher.find()) {
            return matcher.group(groupName);
        } else {
            return null;
        }
    }
}

class Location {
    private String province;
    private String city;
    private String district;
    private String town;

    public Location(String province, String city, String district, String town) {
        this.province = province;
        this.city = city;
        this.district = district;
        this.town = town;
    }

    public String getProvince() {
        return province;
    }

    public String getCity() {
        return city;
    }

    public String getDistrict() {
        return district;
    }

    public String getTown() {
        return town;
    }

    @Override
    public String toString() {
        return "Location{" +
                "province='" + province + "'"
                + ", city='" + city + "'"
                + ", district='" + district + "'"
                + ", town='" + town + "'"
                + "}";
    }
}

注意：

这个实现是基于假设输入字符串中的省、市、区和镇名都不包含'省'、'市'、'区'和'镇'这些字符。如果输入字符串不符合这个假设，那么这个实现将无法正确提取位置信息。为了更准确地提取位置信息，需要更加复杂的正则表达式和算法。

更多信息: