net.unmz.java.wechat.pay.WeChatCallBack Maven / Gradle / Ivy

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package net.unmz.java.wechat.pay;

import net.unmz.java.util.json.JsonUtils;
import net.unmz.java.util.xml.XmlUtils;
import net.unmz.java.wechat.pay.dto.response.WeChatCallBackDto;
import net.unmz.java.wechat.pay.exception.WeChatException;
import org.apache.commons.lang3.StringUtils;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Map;

/**
 * Project Name:
 * 功能描述：
 *
 * @author [email protected]
 * @version 1.0
 * @date 2018/4/9 14:54
 * @since JDK 1.8
 */
public class WeChatCallBack {

    public static WeChatCallBackDto callBack(HttpServletRequest request, HttpServletResponse response) throws WeChatException {
        try {
            WeChatCallBackDto dto = new WeChatCallBackDto();
            getCallBackInfo(dto, request);
            return dto;
        } catch (Exception e) {
            e.printStackTrace();
            throw new WeChatException(e.getMessage());
        }
    }

    private static void getCallBackInfo(WeChatCallBackDto dto, HttpServletRequest request) {
        String result_code = "FAIL";
        try {
            String xmlString = XmlUtils.parseRequst(request);
            if(StringUtils.isNotBlank(xmlString)){
                System.out.println("----接收到的数据如下：---\n" + xmlString);
                Map map = XmlUtils.toMap(xmlString.getBytes(), "utf-8");
                result_code = map.get("result_code");
                if (WeChatPay.checkSign(xmlString)) {
                    String xml = XmlUtils.toString(xmlString, "utf-8");
                    dto = JsonUtils.toBean(xml, WeChatCallBackDto.class);
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        dto.setResult_wecaht_message(returnXML(result_code));
    }

    private static String returnXML(String return_code) {
        return "";
    }
}