Update WxMpServiceImpl.java

增加getJSSDKPayInfo返回字段code_url，用于微信扫码支付生成二维码图片使用

Author: fxdfxq

weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpServiceImpl.java

@@ -866,6 +866,7 @@ public Map<String, String> getJSSDKPayInfo(Map<String, String> parameters) throw
     payInfo.put("nonceStr", System.currentTimeMillis() + "");
     payInfo.put("package", "prepay_id=" + prepayId);
     payInfo.put("signType", "MD5");
+    payInfo.put("code_url",wxMpPrepayIdResult.getCode_url());
 
     String finalSign = WxCryptUtil.createSign(payInfo, wxMpConfigStorage.getPartnerKey());
     payInfo.put("paySign", finalSign);