MapUtils

一、

package com.wang.utils;

import java.util.HashMap;

import java.util.Map;

import java.util.Set;

public class MapUtils {

    public static String parseParamMapToQueryStr(Map<String, Object> paramMap) {

        StringBuilder result = new StringBuilder();

        Set<Map.Entry<String, Object>> entries = paramMap.entrySet();

        for (Map.Entry<String, Object> entry : entries) {

            String key = entry.getKey();

            Object value = entry.getValue();

            result.append("&").append("search_").append(key).append("=").append(value);

        }

        return result.toString();

    }

    public static Map<String, Object> parseParamMapToMyBatisMap(Map<String, Object> paramMap) {

        Map<String, Object> resultMap = new HashMap<String, Object>();

        Set<Map.Entry<String, Object>> entries = paramMap.entrySet();

        for (Map.Entry<String, Object> entry : entries) {

            String key = entry.getKey();

            Object value = entry.getValue();

            if(key.startsWith("like")){

                key= key.substring(key.indexOf("_")+1);

                value="%"+value+"%";

            }

            resultMap.put(key,value);

        }

        return resultMap;

    }

}