java微信第三方支付
阿新 • • 發佈:2019-02-18
1. 寫好配置項
#微信支付介面
ias.pay.wxpay.payUrl=https://api.mch.weixin.qq.com/pay/unifiedorder
#回撥地址
ias.pay.wxpay.notifyUrl=
#終端IP
ias.pay.wxpay.spbillCreateIp=
ias.pay.wxpay.appId=
ias.pay.wxpay.mchId=
ias.pay.wxpay.tradeType=APP
ias.pay.wxpay.packages=Sign=WXPay
ias.pay.wxpay.key=
2. java測試用例呼叫微信第三方支付,其中的payProp為配置項,
@Autowired private PayProp payProp; @Test public void createPay() { WxPay wxPay = new WxPay(); wxPay.setPayUrl(payProp.getWxpay().getPayUrl()); wxPay.setAppId(payProp.getWxpay().getAppId()); wxPay.setMchId(payProp.getWxpay().getMchId()); wxPay.setSpbillCreateIp(payProp.getWxpay().getSpbillCreateIp()); wxPay.setNotifyUrl(payProp.getWxpay().getNotifyUrl()); wxPay.setTradeType(payProp.getWxpay().getTradeType()); wxPay.setKey(payProp.getWxpay().getKey()); wxPay.setBody("騰訊充值中心-QQ會員充值"); wxPay.setNonceStr(隨機字串,長度要求在32位以內。); wxPay.setOutTradeNo(訂單號); wxPay.setTotalFee(支付金額); wxPay.setSign(WeiXinUtil.sign(wxPay, wxPay.getKey())); String xml = XmlUtil.toXml(wxPay); log.debug("微信支付xml為:\n{}", xml); String results = RestClient.getClient().postForObject(wxPay.getPayUrl(), xml, String.class); log.debug("返回的xml:\n{}", results.toString()); WXResults wxResults = XmlUtil.toBean(results, WXResults.class); if(StringUtil.equals(wxResults.getReturnCode(), "SUCCESS")) { log.debug("返回資訊", wxResults.toString()); } else { throw new BusinessException(30010, wxResults.getReturnMsg()); } }
3。支付成功,回撥介面
@RequestMapping(value="wxpay/notify", produces={"application/xml"}) public String notify(@RequestBody String callback) throws DocumentException { log.debug("微信支付回撥xml為:{}", callback); WxNotify notify = XmlUtil.toBean(callback, WxNotify.class); if(notify.getReturnCode().equals("SUCCESS") || notify.getResultCode().equals("SUCCESS")) { Map<String, Object> map = XmlUtil.xml2map(callback, false); boolean signVerified = WeiXinUtil.isWechatSign(map, payProp.getWxpay().getKey()); if(signVerified) { log.info("微信支付驗籤成功!!!"); log.info("微信支付完成!!!!!"); } } return "<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>"; }
4.其中用到的XmlUtil幫助類附上程式碼
/**
* xml轉map 不帶屬性
* @param xmlStr
* @param needRootKey 是否需要在返回的map里加根節點鍵
* @return
* @throws DocumentException
*/
public static Map<String,Object> xml2map(String xmlStr, boolean needRootKey) throws DocumentException {
Document doc = DocumentHelper.parseText(xmlStr);
Element root = doc.getRootElement();
Map<String, Object> map = xml2map(root);
if(root.elements().size()==0 && root.attributes().size()==0){
return map;
}
if(needRootKey){
//在返回的map里加根節點鍵(如果需要)
Map<String, Object> rootMap = new HashMap<String, Object>();
rootMap.put(root.getName(), map);
return rootMap;
}
return map;
}
/**
* 將傳入xml文字轉換成Java物件
* @Title: toBean
* @param xmlStr
* @param cls xml對應的class類
* @return T xml對應的class類的例項物件
*
* 呼叫的方法例項:PersonBean person=XmlUtil.toBean(xmlStr, PersonBean.class);
*/
public static <T> T toBean(String xmlStr,Class<T> cls){
//注意:不是new Xstream(); 否則報錯:java.lang.NoClassDefFoundError: org/xmlpull/v1/XmlPullParserFactory
XStream xstream=new XStream(new DomDriver());
xstream.processAnnotations(cls);
T obj=(T)xstream.fromXML(xmlStr);
return obj;
}
5. 涉及到的生成簽名和驗籤工具類程式碼
package com.ias.server.pay.util;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.ias.common.utils.bean.ClassUtil;
import com.ias.common.utils.collection.ArrayUtils;
import com.ias.common.utils.date.TimeUtil;
import com.ias.common.utils.encrypt.MD5Util;
import com.ias.common.utils.string.StringUtil;
import com.ias.server.pay.annotations.Sign;
public class WeiXinUtil {
private static final Logger log = LoggerFactory.getLogger(WeiXinUtil.class);
/**
* 微信支付簽名
* @author: jiuzhou.hu
* @date:2017年3月15日下午12:54:52
* @param obj
* @param keyStr
* @return
*/
public static String sign(Object obj, String keyStr) {
Map<String, String> fields = new HashMap<>();
for(Field field : obj.getClass().getDeclaredFields()) {
Sign sign = field.getAnnotation(Sign.class);
if(field.getAnnotation(Sign.class) != null) {
fields.put(field.getName(), sign.value());
}
}
List<String> signs = new ArrayList<>();
for(String key:fields.keySet()) {
Object ov = ClassUtil.getFieldValue(obj, key);
if(ov != null) {
signs.add(fields.get(key) + "=" + ov);
}
}
signs.sort((String s1, String s2) -> s1.compareTo(s2));
signs.add("key=" + keyStr);
String _signs = ArrayUtils.toString(signs,'&');
log.debug("未加密的sign串為:{}", _signs);
String md5Sign = MD5Util.encode(_signs).toUpperCase();
log.debug("md5加密過的sign串為:{}", md5Sign);
return md5Sign;
}
/**
* 微信驗籤
* @author feng.ye
* @date 2018年7月19日 下午1:27:27
* @param map
* @param apiKey
* @return
*/
@SuppressWarnings("rawtypes")
public static boolean isWechatSign(Map<String, Object> map,String apiKey) {
StringBuffer sb = new StringBuffer();
Set es = map.entrySet();
Iterator it = es.iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
String k = (String) entry.getKey();
String v = (String) entry.getValue();
if (!"sign".equals(k) && null != v && !"".equals(v) && !"key".equals(k)) {
sb.append(k + "=" + v + "&");
}
}
sb.append("key=" + apiKey);
String sign = MD5Util.encode(sb.toString()).toUpperCase();
log.debug("新生成簽名為:{}", sign);
String validSign = ((String) map.get("sign")).toUpperCase();
log.debug("微信端返回簽名為:{}", validSign);
if(StringUtil.isNotBlank(validSign) && StringUtil.equals(sign, validSign)) {
return true;
}else {
return false;
}
}
/**
* 獲取10位時間戳
* @author: jiuzhou.hu
* @date:2017年3月15日下午1:17:49
* @return
*/
public static long timestamp() {
return Long.parseLong(String.valueOf(TimeUtil.getSysTimestamp().getTime()).toString().substring(0,10));
}
}