支付完成后,微信会把相关支付结果和用户信息发送给商户,商户需要接收处理,并返回应答。
对后台通知交互时,如果微信收到商户的应答不是成功或超时,微信认为通知失败,微信会通过一定的策略定期重新发起通知,尽可能提高通知的成功率,但微信不保证通知最终能成功。 (通知频率为15/15/30/180/1800/1800/1800/1800/3600,单位:秒)
注意:同样的通知可能会多次发送给商户系统。商户系统必须能够正确处理重复的通知。
推荐的做法是,当收到通知进行处理时,首先检查对应业务数据的状态,判断该通知是否已经处理过,如果没有处理过再进行处理,如果处理过直接返回结果成功。在对业务数据进行状态检查和处理之前,要采用数据锁进行并发控制,以避免函数重入造成的数据混乱。
特别提醒:商户系统对于支付结果通知的内容一定要做签名验证,防止数据泄漏导致出现“假通知”,造成资金损失。
java" id="highlighter_262719">
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//支付结果通知接口
@requestmapping ( "/qlydweixinotify.do" )
public void weixinotify(httpservletrequest request,
httpservletresponse response) {
printwriter out = null ;
stringbuffer xmlstr = new stringbuffer();
try {
bufferedreader reader = request.getreader();
string line = null ;
while ((line = reader.readline()) != null ) {
xmlstr.append(line);
}
logger.getlogger(getclass()).debug( "支付回调通知:" +xmlstr.tostring());
//检查xml是否有效
boolean flag=signature.checkissignvalidfromresponsestring(xmlstr.tostring());
weixinnotifyresult result= null ;
if (flag){
notifyresdata wxdata=(notifyresdata) util.getobjectfromxml(xmlstr.tostring(),notifyresdata. class );
if (wxdata != null ){
if ( "success" .equals(wxdata.getreturn_code())&& "success" .equals(wxdata.getresult_code())){
orderpayinfo orderpayinfo = new orderpayinfo();
orderpayinfo.setordernum(wxdata.getout_trade_no());
orderpayinfo.setpaynum(wxdata.gettransaction_id());
orderpayinfo.setpayprice(( double )wxdata.gettotal_fee()/ 100 + "" );
orderpayinfo.setpaysource(wxdata.getopenid());
orderpayinfo.setpaytime(wxdata.gettime_end());
ordermessage returnmessage = orderproductserver
.completeproductorder(orderpayinfo);
if (orderstatus.fail.equals(returnmessage
.getorderstatus())) {
logger.getlogger(getclass()).error( "远程接口完成订单失败" );
result= new weixinnotifyresult( "fail" );
result.setreturn_msg( "远程接口完成订单失败" );
} else {
result= new weixinnotifyresult( "success" );
result.setreturn_msg( "成功" );
}
} else {
result= new weixinnotifyresult( "fail" );
result.setreturn_msg( "失败" );
}
} else {
result= new weixinnotifyresult( "fail" );
result.setreturn_msg( "解析参数格式失败" );
}
} else {
result= new weixinnotifyresult( "fail" );
result.setreturn_msg( "签名失败" );
}
response.getwriter().write(result.tostring());
} catch (exception e) {
logger.getlogger(getclass()).error( "qlydweixinotify.do" , e);
responedeal.getinstance().sendresponsestr(response, "404" , "连接超时" );
} finally {
if (out != null ) {
out.close();
}
}
}
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模拟http请求工具类:
httpsrequestutil.java
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package com.qlwb.weixin.util;
import java.io.ioexception;
import org.apache.commons.httpclient.httpclient;
import org.apache.commons.httpclient.httpexception;
import org.apache.commons.httpclient.methods.postmethod;
import org.apache.commons.httpclient.methods.requestentity;
import org.apache.commons.httpclient.methods.stringrequestentity;
import org.apache.log4j.logger;
import com.qlwb.weixin.common.configure;
import com.qlwb.weixin.common.util;
import com.qlwb.weixin.protocol.pay_protocol.wxpayreqdata;
import com.qlwb.weixin.protocol.payquery_protocol.payqueryreqdata;
public class httpsrequestutil {
/**
*
* @方法名称:sendwxpayrequest
* @内容摘要: <发送统一下单请求>
* @param body
* @param outtradeno
* @param totalfee
* @param spbillcreateip
* @return
* string
* @exception
* @author:鹿伟伟
* @创建日期:2016年2月19日-下午2:24:05
*/
public string sendwxpayrequest(string body,string detail,string outtradeno, int totalfee,string spbillcreateip
)
{
// 构造http请求
httpclient httpclient = new httpclient();
postmethod postmethod = new postmethod(configure.pay_api);
wxpayreqdata wxdata = new wxpayreqdata(body,detail,outtradeno,totalfee,spbillcreateip);
string requeststr= "" ;
requeststr=util.convertobj2xml(wxdata);
// 发送请求
string strresponse = null ;
try {
requestentity entity = new stringrequestentity(
requeststr.tostring(), "text/xml" , "utf-8" );
postmethod.setrequestentity(entity);
httpclient.executemethod(postmethod);
strresponse = new string(postmethod.getresponsebody(), "utf-8" );
logger.getlogger(getclass()).debug(strresponse);
} catch (httpexception e) {
logger.getlogger(getclass()).error( "sendwxpayrequest" , e);
} catch (ioexception e) {
logger.getlogger(getclass()).error( "sendwxpayrequest" , e);
} finally {
postmethod.releaseconnection();
}
return strresponse;
}
/**
*
* @方法名称:orderqueryrequest
* @内容摘要: <查询订单信息>
* @param transaction_id 微信的订单号,优先使用
* @return
* string
* @exception
* @author:鹿伟伟
* @创建日期:2016年2月19日-下午2:44:11
*/
public string orderqueryrequest(string transactionid, string outtradeno
)
{
// 构造http请求
httpclient httpclient = new httpclient();
postmethod postmethod = new postmethod(configure.pay_query_api);
payqueryreqdata wxdata = new payqueryreqdata(transactionid,outtradeno);
string requeststr= "" ;
requeststr=util.convertobj2xml(wxdata);
// 发送请求
string strresponse = null ;
try {
requestentity entity = new stringrequestentity(
requeststr.tostring(), "text/xml" , "utf-8" );
postmethod.setrequestentity(entity);
httpclient.executemethod(postmethod);
strresponse = new string(postmethod.getresponsebody(), "utf-8" );
} catch (httpexception e) {
logger.getlogger(getclass()).error( "orderqueryrequest" , e);
} catch (ioexception e) {
logger.getlogger(getclass()).error( "orderqueryrequest" , e);
} finally {
postmethod.releaseconnection();
}
return strresponse;
}
}
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以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/yelin042/article/details/80636540