package com.test;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.UUID;

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;

public class Test {

	static boolean flag = true;// 默认使用名称去排序

	static String msg = "{\"code\":17,\"resut\":1,\"msg\":\"根据商圈管理员ID获取所有的商家\",\"data\":{\"list\":[{\"name\":\"美宜佳\",\"id\":3},{\"name\":\"老王面馆\",\"id\":4},{\"name\":\"大润发\",\"id\":5},{\"name\":\"阿卡丽弄\",\"id\":6},{\"name\":\"555\",\"id\":9},{\"name\":\"好了咯JJ\",\"id\":11},{\"name\":\"路路通\",\"id\":14},{\"name\":\"钟表店\",\"id\":15},{\"name\":\"bloom弄\",\"id\":16},{\"name\":\"上班车啊\",\"id\":18},{\"name\":\"1额考虑欧诺LOL\",\"id\":19}]}}";

	public static void main(String[] args) {

		// 1、初始化数据
		Map<String, Integer> cmap = new HashMap<String, Integer>();

		JSONObject fromObject = JSONObject.fromObject(msg);
		JSONArray jsonArray = fromObject.getJSONObject("data").getJSONArray("list");

		for (Object object : jsonArray) {
			JSONObject j = (JSONObject) object;
			String name = j.getString("name");
			int id = j.getInt("id");
			cmap.put(name, id);
		}

		// 2、加入假数据
		for (int i = 0; i < 1000; i++) {
			UUID uuid = UUID.randomUUID();
			String random = uuid.toString().replaceAll("-", "").substring(0, 8);

			int intFlag = (int) (Math.random() * 10000);

			cmap.put(random, intFlag);
		}
		System.out.println("-------------------数据插入完毕----------------------------");

		long currentTimeMillis = System.currentTimeMillis();
		// 3、模糊匹配数据
		Map<String, Integer> likeByMap = getLikeByMap(cmap, "a");

		System.out.println("模糊查询到的结果:\n" + likeByMap);

		long currentTimeMillis2 = System.currentTimeMillis();
		System.out.println("使用时间:" + (currentTimeMillis2 - currentTimeMillis));
	}

	/**
	 * Map集合模糊匹配
	 *
	 * @param map     map集合
	 * @param keyLike 模糊key
	 * @return {a1=1,a1899=1899}
	 */
	public static Map<String, Integer> getLikeByMap(Map<String, Integer> map, String keyLike) {

		/** 返回的数据map **/
		Map<String, Integer> m = new LinkedHashMap<>();

		/** 用于排序数据集合 **/
		List<String> l = new LinkedList<>();

		// 循环匹配
		for (Map.Entry<String, Integer> entity : map.entrySet()) {
			String key = entity.getKey();
			String integer = map.get(key) + "";

			if (key.equals(keyLike)) {// 判断名称完全相等
				String a = key + "&" + integer;
				l.add(0, a);// 放在第一位
				continue;
			}

			if (integer.equals(keyLike)) {// 判断ID完全相等
				String a = key + "&" + integer;
				l.add(0, a);// 放在第一位
				flag = false;
				continue;
			}

			if (key.indexOf(keyLike) > -1) {// 判断key值
				String a = key + "&" + integer;
				l.add(a);
			}

			if (integer.indexOf(keyLike) > -1) {// 判断value
				String a = key + "&" + integer;
				l.add(a);
			}

		}
		// 将数据长短进行排序

		// 将第一个数据取出,不排序
		// 判断第一个是否为完全匹配到的

		if (null != l) {
			if (l.size() > 0) {
				String one = l.get(0);

				if (one.contains("&")) {
					String[] split = one.split("&");
					String name = split[0];
					String id = split[1];
					if (name.equals(keyLike) || id.equals(keyLike)) {
						l.remove(0);
					} else {
						one = null;
					}
				}

				List<String> test = new LinkedList<>();
				if (flag) {// 名称
					for (String string : l) {
						String[] split = string.split("&");
						String name = split[0];
						test.add(name);
					}
				} else {// ID
					for (String string : l) {
						String[] split = string.split("&");
						String id = split[1];
						test.add(id);
					}
				}

				List<String> sort = Sort(test);

				List<String> list = new LinkedList<>();
				if (flag) {
					for (int i = 0; i < sort.size(); i++) {
						String string = sort.get(i).toString();
						Integer integer = map.get(string);
						list.add(i, string + "&" + integer);
					}
				} else {
					for (int i = 0; i < sort.size(); i++) {
						String string = sort.get(i);
						for (Map.Entry<String, Integer> entity : map.entrySet()) {
							String key = entity.getKey();
							String integer = map.get(key) + "";
							if (integer.equals(string)) {
								list.add(i, key + "&" + integer);
							}
						}
					}
				}

				if (null != one) {
					list.add(0, one);

				}

				for (String res : list) {
					String[] split = res.split("&");
					String name = split[0];
					String id = split[1];
					m.put(name, Integer.valueOf(id));
				}

			}
		}
		return m;
	}

	/**
	 * 排序
	 *
	 * @param stringList
	 * @return
	 */
	public static List<String> Sort(List<String> stringList) {
		String[] arr = stringList.stream().toArray(String[]::new);
		for (int i = 0; i < arr.length - 1; i++) {// 外层循环控制排序趟数
			for (int j = 0; j < arr.length - 1 - i; j++) {// 内层循环控制每一趟排序多少次
				if (arr[j].length() > arr[j + 1].length()) {
					String temp = arr[j];
					arr[j] = arr[j + 1];
					arr[j + 1] = temp;
				}
			}
		}
		List<String> succlist = new ArrayList<String>();
		for (int i = 0; i < arr.length; i++) {
			String string = arr[i];
			succlist.add(i, string);
		}
		return succlist;
	}

}

  博客地址:http://blog.mojxtang.com

05-11 15:17