微信公众号支付H5调用支付解析

import org.apache.commons.codec.digest.DigestUtils;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;

import com.fasterxml.jackson.databind.JsonNode;
import com.gson.oauth.Oauth;
import com.gson.oauth.Pay;
import com.gson.util.HttpKit;
import com.gson.util.Tools;
import org.andy.util.DatetimeUtil;
import org.andy.util.JsonUtil;
import org.andy.util.SessionUtil;
import org.andy.util.WebUtil;

@Controller
@RequestMapping("/pay")
public class WXPayController {

@RequestMapping(value = "wxprepay")
public void jspay(HttpServletRequest request,HttpServletResponse response,String callback) throws Exception {
// 获取openid
String openId = SessionUtil.getAtt(request,"openId");
if (openId == null) {
openId = getUserOpenId(request);
}

String appid = "wx16691fcb0523c1a4";
String partnerid = "22223670";
String paternerKey = "fjfjfjfjf1234567FFFFFFFFF1234567";

String out_trade_no = getTradeNo();
Map<String,String> paraMap = new HashMap<String,String>();
paraMap.put("appid",appid);
paraMap.put("attach","测试支付");
paraMap.put("body","测试购买Beacon支付");
paraMap.put("mch_id",partnerid);
paraMap.put("nonce_str",create_nonce_str());
paraMap.put("openid",openId);
paraMap.put("out_trade_no",out_trade_no);
paraMap.put("spbill_create_ip",getAddrIp(request));
paraMap.put("total_fee","1");
paraMap.put("trade_type","JSAPI");
paraMap.put("notify_url","http://www.xxx.co/wxpay/pay/appPay_notify.shtml");
String sign = getSign(paraMap,paternerKey);
paraMap.put("sign",sign);

// 统一下单 https://api.mch.weixin.qq.com/pay/unifiedorder
String url = "https://api.mch.weixin.qq.com/pay/unifiedorder";

String xml = ArrayToXml(paraMap,false);

String xmlStr = HttpKit.post(url,xml);

// 预付商品id
String prepay_id = "";

if (xmlStr.indexOf("SUCCESS") != -1) {
Map<String,String> map = doXMLParse(xmlStr);
prepay_id = (String) map.get("prepay_id");
}

Map<String,String> payMap = new HashMap<String,String>();
payMap.put("appId",appid);
payMap.put("timeStamp",create_timestamp());
payMap.put("nonceStr",create_nonce_str());
payMap.put("signType","MD5");
payMap.put("package","prepay_id=" + prepay_id);
String paySign = getSign(payMap,paternerKey);

payMap.put("pg",prepay_id);
payMap.put("paySign",paySign);

WebUtil.response(response,WebUtil.packJsonp(callback,JsonUtil.warpJsonNodeResponse(JsonUtil.objectToJsonNode(payMap)).toString()));
}

@RequestMapping(value = "appPay")
public void appPay(HttpServletRequest request,String body,String detail,String total_fee,String spbill_create_ip,String notify_url,String trade_type,String callback) throws Exception {

String appid = "wx16691fcb0523c1a4";
String partnerid = "22223670";
String paternerKey = "fjfjfjfjf1234567FFFFFFFFF1234567";

String out_trade_no = getTradeNo();
Map<String,appid);
paraMap.put("body",body);
paraMap.put("mch_id",create_nonce_str());
paraMap.put("out_trade_no",spbill_create_ip);
paraMap.put("total_fee",total_fee);
paraMap.put("trade_type",trade_type);
paraMap.put("notify_url",notify_url);
String sign = getSign(paraMap,xml);

// 预付商品id
String prepay_id = "";

Map<String,String> map = doXMLParse(xmlStr);
if (xmlStr.indexOf("SUCCESS") != -1) {
prepay_id = (String) map.get("prepay_id");
}

String result_code = map.get("result_code");
String err_code_des = map.get("err_code_des");
Map<String,String>();
payMap.put("appid",appid);
payMap.put("partnerid",partnerid);
payMap.put("prepayid",prepay_id);
payMap.put("package","Sign=WXPay");
payMap.put("noncestr",create_nonce_str());
payMap.put("timestamp",create_timestamp());
String paySign = getSign(payMap,paternerKey);

payMap.put("sign",paySign);
payMap.put("result_code",result_code);
payMap.put("err_code_des",err_code_des);

WebUtil.response(response,JsonUtil.warpJsonNodeResponse(JsonUtil.objectToJsonNode(payMap)).toString()));
}

@RequestMapping("/appPay_notify")
public void appPayNotify(HttpServletRequest request,HttpServletResponse response) throws Exception{
//String xml = "<![CDATA[wxb4dc385f953b356e]]><![CDATA[CCB_CREDIT]]><![CDATA[1]]><![CDATA[CNY]]><![CDATA[Y]]><![CDATA[1228442802]]><![CDATA[1002477130]]><![CDATA[o-HREuJzRr3moMvv990VdfnQ8x4k]]><![CDATA[1000000000051249]]><![CDATA[SUCCESS]]><![CDATA[SUCCESS]]><![CDATA[1269E03E43F2B8C388A414EDAE185CEE]]><![CDATA[20150324100405]]>1<![CDATA[JSAPI]]><![CDATA[1009530574201503240036299496]]>";
response.setCharacterEncoding("UTF-8");
response.setContentType("text/xml");
ServletInputStream in = request.getInputStream();
String xmlMsg = Tools.inputStream2String(in);

Map<String,String> map = doXMLParse(xmlMsg);
String return_code = map.get("return_code");
String return_msg = map.get("return_msg");

map = new HashMap<String,String>();
map.put("return_code",return_code);
map.put("return_msg",return_msg);

//响应xml
String resXml = ArrayToXml(map,true);
response.getWriter().write(resXml);
}

@RequestMapping("/orderquery.do")
public void orderquery(HttpServletRequest request,String transaction_id,String out_trade_no,String callback) throws Exception{

String url = "https://api.mch.weixin.qq.com/pay/orderquery";

String appid = "wx16691fcb0523c1a4";
String partnerid = "22223670";
String paternerKey = "fjfjfjfjf1234567FFFFFFFFF1234567";

Map<String,String> map = new HashMap<String,String>();
map.put("appid",appid);
map.put("mch_id",partnerid);
if(transaction_id != null && !transaction_id.equals("")){
map.put("transaction_id",transaction_id);
}else {
map.put("out_trade_no",out_trade_no);
}
map.put("nonce_str",create_nonce_str());
String paySign = getSign(map,paternerKey);
map.put("sign",paySign);

String xml = ArrayToXml(map,false);
String xmlStr = HttpKit.post(url,xml);

Map<String,String> orderMap = doXMLParse(xmlStr);

WebUtil.response(response,JsonUtil.warpJsonNodeResponse(JsonUtil.objectToJsonNode(orderMap)).toString()));
}

/**

map转成xml
@param arr
@return
*/
public String ArrayToXml(Map<String,String> parm,boolean isAddCDATA) {
StringBuffer strbuff = new StringBuffer();
if (parm != null ) {
for (Entry<String,String> entry : parm.entrySet()) {
strbuff.append("<").append(entry.getKey()).append(">");
if (isAddCDATA) {
strbuff.append(<![CDATA[).append(entry.getValue()).append(]]>);
}else {
strbuff.append(entry.getValue());
}
strbuff.append("<").append(entry.getKey()).append(">");
}
}
return strbuff.append().toString();
}

// 获取openId
private String getUserOpenId(HttpServletRequest request) throws Exception {
String code = request.getParameter("code");
if (code == null) {
String openId = request.getParameter("openId");
return openId;
}
Oauth o = new Oauth();
String token = o.getToken(code);
JsonNode node = JsonUtil.StringToJsonNode(token);
String openId = node.get("openid").asText();
return openId;
}

private String create_nonce_str() {
String chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
String res = "";
for (int i = 0; i < 16; i++) {
Random rd = new Random();
res += chars.charAt(rd.nextInt(chars.length() - 1));
}
return res;
}

private String getAddrIp(HttpServletRequest request){
return request.getRemoteAddr();
}

private String create_timestamp() {
return Long.toString(System.currentTimeMillis() / 1000);
}

private String getTradeNo(){
String timestamp = DatetimeUtil.formatDate(new Date(),DatetimeUtil.DATETIME_PATTERN);
return "HZNO" + timestamp;
}

private String getSign(Map<String,String> params,String paternerKey )
throws UnsupportedEncodingException {
String string1 = Pay.createSign(params,false);
String stringSignTemp = string1 + "&key=" + paternerKey;
String signValue = DigestUtils.md5Hex(stringSignTemp).toUpperCase();
return signValue;
}

private Map<String,String> doXMLParse(String xml)
throws XmlPullParserException,IOException {

InputStream inputStream = new ByteArrayInputStream(xml.getBytes());

Map<String,String> map = null;

XmlPullParser pullParser = XmlPullParserFactory.newInstance()
.newPullParser();

pullParser.setInput(inputStream,"UTF-8"); // 为xml设置要解析的xml数据

int eventType = pullParser.getEventType();

while (eventType != XmlPullParser.END_DOCUMENT) {
switch (eventType) {
case XmlPullParser.START_DOCUMENT:
map = new HashMap<String,String>();
break;

case XmlPullParser.START_TAG:
String key = pullParser.getName();
if (key.equals("xml"))
break;

String value = pullParser.nextText();
map.put(key,value);

break;

case XmlPullParser.END_TAG:
break;

}

eventType = pullParser.next();

}

return map;
}

}

wxprepay.shtm接口是预处理订单接口向微信服务器下订单。 appPay.shtml接口是支付接口。 appPay_notify.shtml接口是微信支付后异步通知结果接口。 orderquery.shtml接口是订单查询接口

3.3、涉及到的工具类 SessionUtil.java工具类

import javax.servlet.http.HttpServletRequest;

public class SessionUtil {
public static void addAtt(HttpServletRequest request,String key,Object value){
request.getSession().setAttribute(key,value);
}

public static void removeAtt(HttpServletRequest request,String key){
request.getSession().removeAttribute(key);
}

public static String getAtt(HttpServletRequest request,String key){
return (String)request.getSession().getAttribute(key);
}

public static Object getAttObj(HttpServletRequest request,String key){
return request.getSession().getAttribute(key);
}

public static String optAtt(HttpServletRequest request,String value){
String r = (String)request.getSession().getAttribute(key);
if (r == null){
r = value;
}
return r;
}

}

HttpKit 网络请求工具类

headers) throws IOException,ExecutionException,InterruptedException { AsyncHttpClient http = new AsyncHttpClient(); AsyncHttpClient.BoundRequestBuilder builder = http.prepareGet(url); builder.setBodyEncoding(DEFAULT_CHARSET); if (params != null && !params.isEmpty()) { Set keys = params.keySet(); for (String key : keys) { builder.addQueryParameter(key,params.get(key)); } }

if (headers != null && !headers.isEmpty()) {
Set keys = headers.keySet();
for (String key : keys) {
builder.addHeader(key,params.get(key));
}
}
Future f = builder.execute();
String body = f.get().getResponseBody(DEFAULT_CHARSET);
http.close();
return body;
}

/**

@return 返回类型:
@throws IOException
@throws UnsupportedEncodingException
@throws NoSuchProviderException
@throws NoSuchAlgorithmException
@throws KeyManagementException
@description 功能描述: get 请求
*/
public static String get(String url) throws KeyManagementException,NoSuchAlgorithmException,NoSuchProviderException,UnsupportedEncodingException,IOException,InterruptedException {
return get(url,null);
}

/**

@return 返回类型:
@throws IOException
@throws NoSuchProviderException
@throws NoSuchAlgorithmException
@throws KeyManagementException
@throws UnsupportedEncodingException
@description 功能描述: get 请求
*/
public static String get(String url,String> params) throws KeyManagementException,params,null);
}

/**

@return 返回类型:
@throws IOException
@throws NoSuchProviderException
@throws NoSuchAlgorithmException
@throws KeyManagementException
@description 功能描述: POST 请求
*/
public static String post(String url,String> params) throws IOException,InterruptedException {
AsyncHttpClient http = new AsyncHttpClient();
AsyncHttpClient.BoundRequestBuilder builder = http.preparePost(url);
builder.setBodyEncoding(DEFAULT_CHARSET);
if (params != null && !params.isEmpty()) {
Set keys = params.keySet();
for (String key : keys) {
builder.addParameter(key,params.get(key));
}
}
Future f = builder.execute();
String body = f.get().getResponseBody(DEFAULT_CHARSET);
http.close();
return body;
}

public static String post(String url,String s) throws IOException,InterruptedException {
AsyncHttpClient http = new AsyncHttpClient();
AsyncHttpClient.BoundRequestBuilder builder = http.preparePost(url);
builder.setBodyEncoding(DEFAULT_CHARSET);
builder.setBody(s);
Future f = builder.execute();
String body = f.get().getResponseBody(DEFAULT_CHARSET);
http.close();
return body;
}

}

支付工具类pay.java

// 发货通知接口
private static final String DELIVERNOTIFY_URL = "https://api.weixin.qq.com/pay/delivernotify?access_token=";

/**

参与 paySign 签名的字段包括：appid、timestamp、noncestr、package 以及 appkey。
这里 signType 并不参与签名微信的Package参数
@param params
@return
@throws UnsupportedEncodingException
*/
public static String getPackage(Map<String,String> params) throws UnsupportedEncodingException {
String partnerKey = ConfKit.get("partnerKey");
String partnerId = ConfKit.get("partnerId");
String notifyUrl = ConfKit.get("notify_url");
// 公共参数
params.put("bank_type","WX");
params.put("attach","yongle");
params.put("partner",partnerId);
params.put("notify_url",notifyUrl);
params.put("input_charset","UTF-8");
return packageSign(params,partnerKey);
}

/**

构造签名
@param params
@param encode
@return
@throws UnsupportedEncodingException
*/
public static String createSign(Map<String,boolean encode) throws UnsupportedEncodingException {
Set keysSet = params.keySet();
Object[] keys = keysSet.toArray();
Arrays.sort(keys);
StringBuffer temp = new StringBuffer();
boolean first = true;
for (Object key : keys) {
if (first) {
first = false;
} else {
temp.append("&");
}
temp.append(key).append("=");
Object value = params.get(key);
String valueString = "";
if (null != value) {
valueString = value.toString();
}
if (encode) {
temp.append(URLEncoder.encode(valueString,"UTF-8"));
} else {
temp.append(valueString);
}
}
return temp.toString();
}

/**

@param params
@param paternerKey
@return
@throws UnsupportedEncodingException
*/
private static String packageSign(Map<String,String paternerKey) throws UnsupportedEncodingException {
String string1 = createSign(params,false);
String stringSignTemp = string1 + "&key=" + paternerKey;
String signValue = DigestUtils.md5Hex(stringSignTemp).toUpperCase();
String string2 = createSign(params,true);
return string2 + "&sign=" + signValue;
}

/**

支付签名
@param timestamp
@param noncestr
@param packages
@return
@throws UnsupportedEncodingException
*/
public static String paySign(String timestamp,String noncestr,String packages) throws UnsupportedEncodingException {
Map<String,String> paras = new HashMap<String,String>();
paras.put("appid",ConfKit.get("AppId"));
paras.put("timestamp",timestamp);
paras.put("noncestr",noncestr);
paras.put("package",packages);
paras.put("appkey",ConfKit.get("paySignKey"));
// appid、timestamp、noncestr、package 以及 appkey。
String string1 = createSign(paras,false);
String paySign = DigestUtils.shaHex(string1);
return paySign;
}

/**

支付回调校验签名
@param timestamp
@param noncestr
@param openid
@param issubscribe
@param appsignature
@return
@throws UnsupportedEncodingException
*/
public static boolean verifySign(long timestamp,String openid,int issubscribe,String appsignature) throws UnsupportedEncodingException {
Map<String,ConfKit.get("AppId"));
paras.put("appkey",ConfKit.get("paySignKey"));
paras.put("timestamp",String.valueOf(timestamp));
paras.put("noncestr",noncestr);
paras.put("openid",openid);
paras.put("issubscribe",String.valueOf(issubscribe));
// appid、appkey、productid、timestamp、noncestr、openid、issubscribe
String string1 = createSign(paras,false);
String paySign = DigestUtils.shaHex(string1);
return paySign.equalsIgnoreCase(appsignature);
}

/**

发货通知签名
@param paras
@return
@throws UnsupportedEncodingException
@参数 appid、appkey、openid、transid、out_trade_no、deliver_timestamp、deliver_status、deliver_msg；
*/
private static String deliverSign(Map<String,String> paras) throws UnsupportedEncodingException {
paras.put("appkey",ConfKit.get("paySignKey"));
String string1 = createSign(paras,false);
String paySign = DigestUtils.shaHex(string1);
return paySign;
}

/**

发货通知
@param access_token
@param openid
@param transid
@param out_trade_no
@return
@throws IOException
@throws NoSuchProviderException
@throws NoSuchAlgorithmException
@throws KeyManagementException
@throws InterruptedException
@throws ExecutionException
*/

public static boolean delivernotify(String access_token,String transid,String out_trade_no) throws IOException,InterruptedException {
Map<String,ConfKit.get("AppId"));
paras.put("openid",openid);
paras.put("transid",transid);
paras.put("out_trade_no",out_trade_no);
paras.put("deliver_timestamp",(System.currentTimeMillis() / 1000) + "");
paras.put("deliver_status","1");
paras.put("deliver_msg","ok");
// 签名
String app_signature = deliverSign(paras);
paras.put("app_signature",app_signature);
paras.put("sign_method","sha1");
String json = HttpKit.post(DELIVERNOTIFY_URL.concat(access_token),JSONObject.toJSONString(paras));
if (StringUtils.isNotBlank(json)) {
JSONObject object = JSONObject.parseObject(json);
if (object.containsKey("errcode")) {
int errcode = object.getIntValue("errcode");
return errcode == 0;
}
}
return false;
}
}

流转化Tools.java工具类

public static final String inputStream2String(InputStream in) throws UnsupportedEncodingException,IOException{
if(in == null)
return "";

StringBuffer out = new StringBuffer();
byte[] b = new byte[4096];
for (int n; (n = in.read(b)) != -1;) {
out.append(new String(b,n,"UTF-8"));
}
return out.toString();
}

public static final boolean checkSignature(String token,String signature,String timestamp,String nonce){
List params = new ArrayList();
params.add(token);
params.add(timestamp);
params.add(nonce);
Collections.sort(params,new Comparator() {
@Override
public int compare(String o1,String o2) {
return o1.compareTo(o2);
}
});
String temp = params.get(0)+params.get(1)+params.get(2);
return SHA1.encode(temp).equals(signature);
}
}

相应前端数据工具WebUtil.java工具类

public static Object getSessionAttribute(HttpServletRequest req,String key) {
Object ret = null;

try {
ret = req.getSession(false).getAttribute(key);
} catch (Exception e) {
}
return ret;
}

public static void response(HttpServletResponse response,String result) {
try {
response.setContentType("application/json;charset=utf-8");
response.getWriter().write(result);
} catch (IOException e) {
e.printStackTrace();
}

}

public static void response(HttpServletResponse response,ResponseMessage result) {
try {
response.setContentType("application/json;charset=utf-8");
response.getWriter().write(JsonUtil.objectToJsonNode(result).toString());
} catch (Exception e) {
e.printStackTrace();
}
}

public static String packJsonp(String callback,String json) {
if (json == null) {
json = "";
}
if (callback == null || callback.isEmpty()) {
return json;
}

return callback + "&&" + callback + '(' + json + ')';
}

public static String packJsonp(String callback,ResponseMessage response) {
String json = null;
if (response == null) {
json = "";
} else {
json = JsonUtil.objectToJsonNode(response).toString();
}
if (callback == null || callback.isEmpty()) {
return json;
}

return callback + "&&" + callback + '(' + json + ')';
}
}

Json转换工具JsonUtil.java

public static ObjectNode warpJsonNodeResponse(JsonNode obj){
ObjectNode objectNode=createObjectNode();
objectNode.put("code",1);
objectNode.put("response",obj);
return objectNode;
}

public static JsonNode objectToJsonNode(Object obj){
try {
ObjectMapper objectMapper = new ObjectMapper();
String objJson=objectMapper.writeValueAsString(obj);
JsonNode jsonNode = objectMapper.readTree(objJson);
return jsonNode;
} catch (JsonProcessingException e) {
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}

}

四、微信H5调起支付

这个url需要后台实现，其实现功能如下： 1、接受微信服务器端发送的支付结果。 2、向微信服务器发送支付结果

具体参考微信aip() 具体代码如下： 4.1、授权向后台发起生成统一下订单页面 wxrepay.jsp

<%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %> <% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/"; long t = System.currentTimeMillis(); %> 微信<a href="https://www.jb51.cc/tag/gongzhonghaozhifu/" target="_blank" class="keywords">公众号支付</a>

Box">

首先是请求服务端wxprepay.shml接口，后台向微信支付平台获取支付订单信息，返回前台，wxpay.jsp页面 4.2、确认支付页面

var appId = urlparameter("appId");
var timeStamp = urlparameter("timeStamp");
var nonceStr = urlparameter("nonceStr");
var pg = urlparameter("pg");
var signType = urlparameter("signType");
var paySign = urlparameter("paySign");

function onBridgeReady(){

WeixinJSBridge.invoke(
'getBrandWCPayRequest',{
"appId" : appId,//公众号名称，由商户传入
"timeStamp": timeStamp,//时间戳，自1970年以来的秒数
"nonceStr" : nonceStr,//随机串
"package" : "prepay_id=" + pg,"signType" : signType,//微信签名方式:
"paySign" : paySign //微信签名
},function(res){
if(res.err_msg == "get_brand_wcpay_request:ok" ) {

alert("支付成功");
} // 使用以上方式判断前端返回,微信团队郑重提示：res.err_msg将在用户支付成功后返回 ok，但并不保证它绝对可靠。
}
);
}

function pay(){

if (typeof WeixinJSBridge == "undefined"){
if( document.addEventListener ){
document.addEventListener('WeixinJSBridgeReady',onBridgeReady,false);
}else if (document.attachEvent){
document.attachEvent('WeixinJSBridgeReady',onBridgeReady);
document.attachEvent('onWeixinJSBridgeReady',onBridgeReady);
}
}else{
onBridgeReady();
}

}

4.2、前台涉及到的工具类 javascript工具类common.js，样式css.css就不贴了没意义。

五、支付结果

支付成功后，微信服务器得到后台的Notify通知后，会发微信说明支付信息，支付凭证如下：

后续会全部更新微信app支付，微信支付退款，微信企业向个人付款，支付宝相关支付。而且会上传全部代码到csdn资源下载处，尽请关注。

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编程之家。

微信公众号支付H5调用支付解析

一、配置公众号微信支付

二、开发流程

三、向微信服务器端下订单

四、微信H5调起支付

五、支付结果

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