package com.panzhihua.common.utlis;
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import com.alibaba.fastjson.JSONObject;
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import com.panzhihua.common.constants.PayCpmstant;
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import java.math.BigDecimal;
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import java.util.Map;
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import java.util.SortedMap;
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import java.util.TreeMap;
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public class WxPayUtils {
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public static String getUnifiedorder(String body, String openid, String outTradeNo, BigDecimal money) throws Exception{
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String nonceStr = PayUtil.makeUUID(32);
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SortedMap<Object, Object> params = new TreeMap<>();
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params.put("appid", "wx0cef797390444b75");
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params.put("body", body);
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params.put("mch_id", "1608439275");
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params.put("nonce_str",nonceStr);
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params.put("notify_url", "http://387405oo37.zicp.vip/api/applets/wx/notify");
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params.put("openid", openid);
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params.put("out_trade_no", outTradeNo);//商品订单号
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params.put("spbill_create_ip", PayUtil.getLocalIp());//服务部署的ip
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params.put("total_fee", PayUtil.moneyToIntegerStr(money));//费用的参数转型
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params.put("trade_type", "JSAPI");//对接类型
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params.put("sign", PayUtil.createSign("UTF-8", params, "01A9CB2234D7CBD0AC61B75EB1263805"));//MD5签名
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//转换成xml
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String xmlData = PayUtil.getRequestXml(params);
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//请求微信后台，获取支付id
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String resXml = HttpClientUtil.httpsRequest(PayCpmstant.UNIFIEDORDER_URL, xmlData);
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System.out.println(resXml);
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JSONObject data = XMLUtils.xml2Json(resXml);
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JSONObject result = new JSONObject();
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if(data.get("return_msg").equals("OK")){
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//将微信统一下单成功的参数拼接再签名
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//统一下单返回prepay_id
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String prepay_id = "prepay_id=" + data.getString("prepay_id");
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//时间戳
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Long timeStamp = System.currentTimeMillis()/1000;
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//封装需要签名的字段
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SortedMap<Object, Object> payParams = new TreeMap<>();
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params.put("appid", "wx0cef797390444b75");
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params.put("nonce_str",nonceStr);
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params.put("package",nonceStr);
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params.put("signType",nonceStr);
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params.put("timeStamp",nonceStr);
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//将参数以及签名计算完成封装返回给前端
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result.put("timeStamp",timeStamp);
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result.put("nonceStr",nonceStr);
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result.put("package",prepay_id);
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result.put("signType","MD5");
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result.put("paySign",PayUtil.createSign("UTF-8", payParams, "01A9CB2234D7CBD0AC61B75EB1263805"));
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}
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return result.toJSONString();
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}
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public static SortedMap<Object, Object> prepayId(Map<String, String> map) {
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SortedMap<Object, Object> parameters = new TreeMap<>();
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parameters.put("appId", "");
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parameters.put("timeStamp", PayUtil.create_timestamp());
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parameters.put("nonceStr", map.get("nonce_str"));
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parameters.put("package", "prepay_id=" + map.get("prepay_id"));
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parameters.put("signType", "MD5");
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String sign = PayUtil.createSign("UTF-8", parameters, "商户秘钥");
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parameters.put("prepay_id", "prepay_id=" + map.get("prepay_id"));
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parameters.put("paySign", sign);
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return parameters;
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}
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}
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