如何在java List中进行模糊查询

比如我有下面这样一个List，里面存放的是多个Employee对象。然后我想对这个List进行按照Employee对象的名字进行模糊查询。有什么好的解决方案么？ 比如我输入的查询条件为“wang”，那么应该返回只包含employee1的List列表。

List list = new ArrayList();
Employee employee1 = new Employee();
employee1.setName("wangqiang");
employee1.setAge(30);
list.add(employee1);
Employee employee2 = new Employee();
employee2.setName("lisi");
list.add(employee2);
employee2.setAge(25);

方式一：

public List search(String name,List list){
   List results = new ArrayList();
   Pattern pattern = Pattern.compile(name);
   for(int i=0; i < list.size(); i++){
      Matcher matcher = pattern.matcher(((Employee)list.get(i)).getName());
      if(matcher.matches()){
         results.add(list.get(i));
      }
   }
   return results;
}

上面那个是大小写敏感的，如果要求大小写不敏感，改成： Pattern pattern = Pattern.compile(name,Pattern.CASE_INSENSITIVE);

并且上面那个是精确查询，如果要模糊匹配，matcher.find()即可以进行模糊匹配

public List search(String name,List list){
   List results = new ArrayList();
   Pattern pattern = Pattern.compile(name);
   for(int i=0; i < list.size(); i++){
      Matcher matcher = pattern.matcher(((Employee)list.get(i)).getName());
      if(matcher.find()){
         results.add(list.get(i));
      }
   }
   return results;
}

List Stream流用法

if(StringUtils.isNotBlank(keyword)){
    Pattern pattern = Pattern.compile(keyword,Pattern.CASE_INSENSITIVE);
    results = ruleList.stream().filter(t -> pattern.matcher(t).find()).collect(Collectors.toList());
} else {
    results = ruleList;
}