list模糊查询工具类_java list 模糊查询

list模糊查询工具

import java.util.LinkedList;
import java.util.List;
import java.util.Optional;
import java.util.function.Function;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
 
 
/**
* @author ：
* @description： list模糊查询工具类
* @date ：2023/6/23 14:42
*/
public class FilterUtil {
 
 
/**
* @method: listFilter
* @Description: 模糊查找
* @Author: 
* @date: 2023/6/23 14:42
*/
public static <T> List<T> listFilter(boolean condition, String target, List<T> list, Function<T, ?> function) {
List<T> result = null;
if (condition) {
result = listFilter(target, list, function);
}
// 不满足条件直接返回原数据集合
return Optional.ofNullable(result).orElse(list);
}
 
 
 
 
public static <T> List<T> listFilter(String target, List<T> list, Function<T, ?> function) {
List<T> result = new LinkedList<>();
//该处决定大小写是否敏感
Pattern pattern = Pattern.compile(target, Pattern.CASE_INSENSITIVE);
for (T t : list) {
Matcher matcher = pattern.matcher(function.apply(t).toString());
if (matcher.find()) {
result.add(t);
}
}
return result;
}
 
 
}