获取格式化查询字符串

package com;

import java.util.*;

public class MethodTest {
    public static void main(String[] args) {
        System.out.println(getFormatStr("LW53_CQ_0207"));
    }

    /**
     * 获取查询字符串的格式化查询列表
     * @param queryStr
     * @return
     */
    static List<String> getFormatStr(String queryStr){
        Set<String> strKeySet = new TreeSet(){{
            add("_");
            add(".");
            add("-");
        }};
        Set<Character> charKeySet = new TreeSet(){{
            add('_');
            add('.');
            add('-');
        }};
        List<String> resultList = new ArrayList();
        List<Map<Integer,Character>> positionList = new ArrayList();
        if (!containKey(queryStr,strKeySet)){
            resultList.add(queryStr);
            return resultList;
        }
        char[] queryStrChar = queryStr.toCharArray();

        for (int i = 0; i < queryStrChar.length; i++) {
            if (isKey(queryStrChar[i],charKeySet)) {
                HashMap map = new HashMap();
                map.put(i,queryStrChar[i]);
                positionList.add(map);
            }
        }
        Collections.reverse(positionList);
        StringBuilder sb = new StringBuilder(queryStr);
        for (Map<Integer, Character> positionMap : positionList) {
            resultList.add(sb.toString());
            sb = new StringBuilder(addQueryStr(resultList,sb,positionMap,charKeySet));
        }
        resultList.add(sb.toString());

        return resultList;
    }

    /**
     * 判断字符串是否包含关键字
     * @param str
     * @param strKeySet
     * @return
     */
    static boolean containKey(String str, Set<String> strKeySet){
        for (String s : strKeySet) {
            if (str.contains(s)) {
                return true;
            }
        }
        return false;
    }

    /**
     * 判断当前字符是否是key
     * @param str
     * @param keySet
     * @return
     */
    static boolean isKey(char str,Set<Character> keySet){
        if (keySet.contains(str))
            return true;
        return false;
    }

    /**
     * 获取同级别长度格式化查询字符串列表
     * @param list
     * @param sb
     * @param positionMap
     * @param keySet
     * @return
     */
    static String addQueryStr(List<String> list,StringBuilder sb, Map<Integer,Character> positionMap, Set<Character> keySet){
        int position = 0;
        char key = '.';
        for (Map.Entry<Integer, Character> integerCharacterEntry : positionMap.entrySet()) {
            position = integerCharacterEntry.getKey();
            key = integerCharacterEntry.getValue();
        }
        for (Character character : keySet) {
            if (character == key)
                continue;
            list.add(sb.replace(position, position + 1, String.valueOf(character)).toString());
        }
        return sb.substring(0, position);
    }
}

标签：return,resultList,param,查询,add,sb,字符串,格式化,new
来源： https://www.cnblogs.com/huangshiyun/p/15355055.html