trim-all-strings-elements-in-a-complex-object

package com.xxx.common.util;

import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;

import java.lang.reflect.Field;

/**
 * @version 1.0.0
 * @date 2021-01-15 17:53
 */
@Slf4j
public class TrimUtil {
    public static void trimStringFieldInObject(Class<?> clazz, Object t) {
        Field[] fields = clazz.getClass().getFields();
        for (Field field : fields) {
            try {
                if (field.get(t) instanceof String) {
                    Object o = field.get(t);
                    String s = (String) o;
                    field.set(t, StringUtils.trimToEmpty(s));
                }
            } catch (IllegalAccessException e) {
                log.warn("converting field {} error", field.getName());
            }
        }
    }
}

https://stackoverflow.com/questions/9189520/trim-all-strings-elements-in-a-complex-object