package com.ots.common.utils;
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import cn.hutool.core.collection.CollectionUtil;
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import javax.servlet.http.HttpServletRequest;
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import java.lang.reflect.Field;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.Map.Entry;
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public class MapDataUtil {
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public static Map<String, Object> convertDataMap(HttpServletRequest request) {
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Map<String, String[]> properties = request.getParameterMap();
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Map<String, Object> returnMap = new HashMap<String, Object>();
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Iterator<?> entries = properties.entrySet().iterator();
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Map.Entry<?, ?> entry;
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String name = "";
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String value = "";
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while (entries.hasNext()) {
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entry = (Entry<?, ?>) entries.next();
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name = (String) entry.getKey();
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Object valueObj = entry.getValue();
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if (null == valueObj) {
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value = "";
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} else if (valueObj instanceof String[]) {
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String[] values = (String[]) valueObj;
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for (int i = 0; i < values.length; i++) {
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value = values[i] + ",";
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}
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value = value.substring(0, value.length() - 1);
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} else {
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value = valueObj.toString();
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}
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returnMap.put(name, value);
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}
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return returnMap;
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}
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/**
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* 对传入的对象进行数据清洗，将属性值为null和""的去掉，其他字段名和属性值存入map集合
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* requestParameters 为要转换为键值对的对象
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* dynamicPara 转换后的键值对添加到的目标集合
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*/
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public static void objectToMap(Object requestParameters,Map<String, String> dynamicPara) throws IllegalAccessException {
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// 获取f对象对应类中的所有属性域
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Field[] fields = requestParameters.getClass().getDeclaredFields();
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for (Field field : fields) {
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String varName = field.getName();
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// 获取原来的访问控制权限
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boolean accessFlag = field.isAccessible();
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// 修改访问控制权限
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field.setAccessible(true);
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// 获取在对象f中属性fields[i]对应的对象中的变量
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Object obj = field.get(requestParameters);
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if (obj != null && StringUtils.isNotBlank(obj.toString()) || CollectionUtil.isNotEmpty((Iterable<?>) obj)) {
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dynamicPara.put(varName, obj.toString());
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// 恢复访问控制权限
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field.setAccessible(accessFlag);
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}
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}
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}
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}
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