com.riversoft.weixin.pay.payment.Signatures Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of weixin-pay Show documentation
The newest version!
package com.riversoft.weixin.pay.payment;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.riversoft.weixin.common.util.MD5;
import com.riversoft.weixin.common.util.RandomStringGenerator;
import com.riversoft.weixin.pay.base.PaySetting;
import com.riversoft.weixin.pay.payment.bean.Signature;

/**
 * @author borball on 12/29/2016.
 */
public class Signatures {
	
	private static Logger logger = LoggerFactory.getLogger(Signatures.class);
	
	private PaySetting paySetting;
	
	public void setPaySetting(PaySetting paySetting) {
		this.paySetting = paySetting;
	}
	
	public static Signatures defaultSignatures() {
		return with(PaySetting.defaultSetting());
	}
	
	public static Signatures with(PaySetting paySetting) {
		Signatures signatures = new Signatures();
		signatures.setPaySetting(paySetting);
		return signatures;
	}
	
	/**
	 * 创建供APP调用的签名
	 * 
	 * @param prepayId
	 * @return
	 */
	public Signature createAppSignature(String prepayId) {
		String pack = "Sign=WXPay";
		
		long timestamp = System.currentTimeMillis() / 1000;
		String nonce = RandomStringGenerator.getRandomStringByLength(16);
		String appId = paySetting.getAppId();
		String mchId = paySetting.getMchId();
		String key = paySetting.getKey();
		
		String sortString = String.format("appid=%s&noncestr=%s&package=%s&partnerid=%s&prepayid=%s×tamp=%s",
				appId, nonce, pack, mchId, prepayId, timestamp);
		
		return createSignature(pack, timestamp, nonce, appId, key, sortString);
	}
	
	/**
	 * 创建供公众号或者小程序调用的签名
	 * 
	 * @param prepayId
	 * @return
	 */
	public Signature createJsSignature(String prepayId) {
		String pack = "prepay_id=" + prepayId;
		
		long timestamp = System.currentTimeMillis() / 1000;
		String nonce = RandomStringGenerator.getRandomStringByLength(16);
		String appId = paySetting.getAppId();
		String key = paySetting.getKey();
		
		String sortString = String.format("appId=%s&nonceStr=%s&package=%s&signType=MD5&timeStamp=%s", appId, nonce,
				pack, timestamp);
		
		return createSignature(pack, timestamp, nonce, appId, key, sortString);
	}
	
	private Signature createSignature(String pack, long timestamp, String nonce, String appId, String key,
			String sortString) {
		String signature = MD5.md5Hex(sortString + "&key=" + key).toUpperCase();
		Signature sign = new Signature();
		sign.setAppId(appId);
		sign.setNonce(nonce);
		sign.setTimestamp(timestamp);
		sign.setSignature(signature);
		sign.setPack(pack);
		return sign;
	}
	
}