Retrofit-多个具有相同名称的查询参数，其中名称是动态设置的

感谢@ILLIA
DEREVIANKO（https://github.com/square/retrofit/issues/1324）发布的链接，我设法解决了此类问题：

   public class ProxyRetrofitQueryMap extends HashMap<String, Object> {    public ProxyRetrofitQueryMap(Map<String, Object> m) {        super(m);    }    @Override    public Set<Entry<String, Object>> entrySet() {        Set<Entry<String, Object>> originSet = super.entrySet();        Set<Entry<String, Object>> newSet = new HashSet<>();        for (Entry<String, Object> entry : originSet) { String entryKey = entry.getKey(); if (entryKey == null) {     throw new IllegalArgumentException("Query map contained null key."); } Object entryValue = entry.getValue(); if (entryValue == null) {     throw new IllegalArgumentException(  "Query map contained null value for key '" + entryKey + "'."); } else if(entryValue instanceof List) {     for(Object arrayValue:(List)entryValue)  {         if (arrayValue != null) { // Skip null values  Entry<String, Object> newEntry = new AbstractMap.SimpleEntry<>(entryKey, arrayValue);  newSet.add(newEntry);         }     } } else {     Entry<String, Object> newEntry = new AbstractMap.SimpleEntry<>(entryKey, entryValue);     newSet.add(newEntry); }        }        return newSet;    }}

这样我们就可以使用一个映射，其中key是唯一的参数名称，value是一个字符串列表，它是此参数的值。像这样：

ProxyRetrofitQueryMap map = new ProxyRetrofitQueryMap();    List<String> values1 = new ArrayList<>();    values1.add("10");    values1.add("11");    map.put("filter[1]", values1);    List<String> values2 = new ArrayList<>();    values1.add("20");    values1.add("21");    map.put("filter[2]", values2);