web_server/src/main/java/thyyxxk/webserver/utils/TestClass.java

package thyyxxk.webserver.utils;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import lombok.Data;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.Consumer;

/**
 * 物品领用的格式化
 * */
public class TestClass {
    private static final Map<String, Consumer<String>> FUNC_MAP = new ConcurrentHashMap<>();
    private static final String MAN = "man";
    private static final String WOMAN = "woman";
    private static final String NONE = "";

    static {
        FUNC_MAP.put(MAN, person -> System.out.println(person + "是男人。"));
        FUNC_MAP.put(WOMAN, person -> System.out.println(person + "是女人。"));
        FUNC_MAP.put(NONE, person -> System.out.println(person + "没有性别。"));
    }

    @Data
    static class Person {
        private String gender;
        private String name;

        public Person(String gender, String name) {
            this.gender = null == gender ? "" : gender;
            this.name = name;
        }
    }

    public static void main(String[] args) {
        Person p = new Person(MAN, "张三");
        Person p2 = new Person(WOMAN, "李四");
        Person p3 = new Person(null, "王五");

        FUNC_MAP.get(p.getGender()).accept(p.getName());
        FUNC_MAP.get(p2.getGender()).accept(p2.getName());
        FUNC_MAP.get(p3.getGender()).accept(p3.getName());

    }

//    public static void main(String[] args) {
//        String ori = readFile("D:\\yyhc.txt");
//        JSONArray arr = JSONArray.parseArray(ori);
//        Map<String, JSONObject> map = new HashMap<>();
//        for (int i = 0; i < arr.size(); i++) {
//            JSONObject itm = arr.getJSONObject(i);
//            if (!map.containsKey(itm.getString("code"))) {
//                JSONArray sizes = new JSONArray();
//                JSONObject size = new JSONObject();
//                size.put("val", itm.getString("size"));
//                sizes.add(size);
//                itm.replace("size", sizes);
//                map.put(itm.getString("code"), itm);
//            } else {
//                JSONObject size = new JSONObject();
//                size.put("val", itm.getString("size"));
//                map.get(itm.getString("code")).getJSONArray("size").add(size);
//            }
//        }
//
//        JSONArray dest = new JSONArray();
//        for (Map.Entry<String, JSONObject> entry : map.entrySet()) {
//            dest.add(entry.getValue());
//        }
//        System.out.println(dest);
//    }
//
//    public static String readFile(String path) {
//        StringBuilder result = new StringBuilder();
//        try {
//            BufferedReader br = new BufferedReader(new FileReader(new File(path)));
//            String temp;
//            while ((temp = br.readLine()) != null) {
//                result.append(temp);
//            }
//        } catch (Exception e) {
//            e.printStackTrace();
//        }
//        return result.toString();
//    }
}