微信公众号支付
最近项目需要微信支付，然后看了下微信公众号支付，，虽然不难，但是细节还是需要注意的，用了大半天时间写了个demo，并且完整的测试了一下支付流程，下面分享一下微信公众号支付的经验。
一、配置公众号微信支付
需要我们配置微信公众号支付地址和测试白名单。
比如：支付JS页面的地址为 http://www.xxx.com/shop/pay/
那此处配置www.xxx.com/shop/pay/
二、开发流程
借用微信公众号支付api(地址 http://pay.weixin.qq.com/wiki/doc/api/index.php?chapter=7_4)，我们需要开发的为红色标记出的。如下：
三、向微信服务器端下订单
调用统一下单接口，这样就能获取微信支付的prepay_id（http://pay.weixin.qq.com/wiki/doc/api/index.php?chapter=9_1）。
在调用该接口前有几个字段是H5支付必须填写的openid
3.1 获取openid
可以通过网页授权形式（http://mp.weixin.qq.com/wiki/17/c0f37d5704f0b64713d5d2c37b468d75.html）
在微信中发送如下链接
https://open.weixin.qq.com/connect/oauth2/authorize?appid=wx520c15f417810387&redirect_uri=要跳转的下订单的url&response_type=code&scope=snsapi_base&state=123#wechat_redirect
3.2 后台支付
代码如下，包含预处理订单，支付订单等接口。
package org.andy.controller;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Random;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
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, HttpServletResponse response, 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, String> paraMap = new HashMap<String, String>();
paraMap.put("appid", appid);
paraMap.put("body", body);
paraMap.put("mch_id", partnerid);
paraMap.put("nonce_str", create_nonce_str());
paraMap.put("out_trade_no", out_trade_no);
paraMap.put("spbill_create_ip", 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, 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 = "";
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 = new HashMap<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, WebUtil.packJsonp(callback, JsonUtil.warpJsonNodeResponse(JsonUtil.objectToJsonNode(payMap)).toString()));
}
@RequestMapping("/appPay_notify")
public void appPayNotify(HttpServletRequest request, HttpServletResponse response) throws Exception{
//String xml = "<xml><appid><![CDATA[wxb4dc385f953b356e]]></appid><bank_type><![CDATA[CCB_CREDIT]]></bank_type><cash_fee><![CDATA[1]]></cash_fee><fee_type><![CDATA[CNY]]></fee_type><is_subscribe><![CDATA[Y]]></is_subscribe><mch_id><![CDATA[1228442802]]></mch_id><nonce_str><![CDATA[1002477130]]></nonce_str><openid><![CDATA[o-HREuJzRr3moMvv990VdfnQ8x4k]]></openid><out_trade_no><![CDATA[1000000000051249]]></out_trade_no><result_code><![CDATA[SUCCESS]]></result_code><return_code><![CDATA[SUCCESS]]></return_code><sign><![CDATA[1269E03E43F2B8C388A414EDAE185CEE]]></sign><time_end><![CDATA[20150324100405]]></time_end><total_fee>1</total_fee><trade_type><![CDATA[JSAPI]]></trade_type><transaction_id><![CDATA[1009530574201503240036299496]]></transaction_id></xml>";
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, HttpServletResponse response, 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, WebUtil.packJsonp(callback, 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(<xml>);
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(</xml>).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
package org.andy.util;
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 key, String value){
String r = (String)request.getSession().getAttribute(key);
if (r == null){
r = value;
}
return r;
}
}
HttpKit 网络请求工具类
/**
* https 请求 微信为https的请求
*
* @author andy
* @date 2015-10-9 下午2:40:19
*/
public class HttpKit {
private static final String DEFAULT_CHARSET = "UTF-8";
/**
* @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, Map<String, String> params, Map<String, String> 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<String> keys = params.keySet();
for (String key : keys) {
builder.addQueryParameter(key, params.get(key));
}
}
if (headers != null && !headers.isEmpty()) {
Set<String> keys = headers.keySet();
for (String key : keys) {
builder.addHeader(key, params.get(key));
}
}
Future<Response> 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, ExecutionException, 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, Map<String, String> params) throws KeyManagementException, NoSuchAlgorithmException, NoSuchProviderException, UnsupportedEncodingException, IOException, ExecutionException, InterruptedException {
return get(url, 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, Map<String, String> params) throws IOException, ExecutionException, InterruptedException {
AsyncHttpClient http = new AsyncHttpClient();
AsyncHttpClient.BoundRequestBuilder builder = http.preparePost(url);
builder.setBodyEncoding(DEFAULT_CHARSET);
if (params != null && !params.isEmpty()) {
Set<String> keys = params.keySet();
for (String key : keys) {
builder.addParameter(key, params.get(key));
}
}
Future<Response> f = builder.execute();
String body = f.get().getResponseBody(DEFAULT_CHARSET);
http.close();
return body;
}
public static String post(String url, String s) throws IOException, ExecutionException, InterruptedException {
AsyncHttpClient http = new AsyncHttpClient();
AsyncHttpClient.BoundRequestBuilder builder = http.preparePost(url);
builder.setBodyEncoding(DEFAULT_CHARSET);
builder.setBody(s);
Future<Response> f = builder.execute();
String body = f.get().getResponseBody(DEFAULT_CHARSET);
http.close();
return body;
}
}
支付工具类pay.java
/**
* 支付相关方法
* @author andy
*
*/
public class Pay {
// 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, String> params, boolean encode) throws UnsupportedEncodingException {
Set<String> 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> params, 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 noncestr, String openid, int issubscribe, String appsignature) throws UnsupportedEncodingException {
Map<String, String> paras = new HashMap<String, String>();
paras.put("appid", 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 openid, String transid, String out_trade_no) throws IOException, ExecutionException, InterruptedException {
Map<String, String> paras = new HashMap<String, String>();
paras.put("appid", 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 final class Tools {
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, 0, n, "UTF-8"));
}
return out.toString();
}
public static final boolean checkSignature(String token,String signature,String timestamp,String nonce){
List<String> params = new ArrayList<String>();
params.add(token);
params.add(timestamp);
params.add(nonce);
Collections.sort(params,new Comparator<String>() {
@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 class WebUtil {
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 class JsonUtil {
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(http://pay.weixin.qq.com/wiki/doc/api/index.php?chapter=9_7)
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
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ 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();
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0" />
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />
<meta name="format-detection" content="telephone=no" />
<title>微信公众号支付</title>
<link href="../css/css.css?t=<%=t%>" rel="stylesheet" type="text/css">
</head>
<body>
<div class="index_box">
<div class="apply_name">商品</div>
<div class="branch_con">
<ul>
<li><span class="name">beacon 1分钱 1只</span></li>
<li><span class="name">测试支付信息</span></li>
</ul>
<p class="cz_btn"><a href="javascript:reppay();" class="btn_1">确定购买</a></p>
</div>
</div>
<script type="text/javascript" src="../js/common.js?t=<%=t%>"></script>
<script type="text/javascript" >
var code = urlparameter("code");
function reppay(){
ajaxUtil({}, mainpath+"/pay/wxprepay.shtml?code=" + code, repay);
}
function repay(response){
var info = response;
var url = "wxpay?appId=" + info.appId + "&timeStamp=" +info.timeStamp + "&nonceStr=" + info.nonceStr +
"&pg=" +info.pg + "&signType=" +info.signType + "&paySign=" +info.paySign;
window.location.href= url + "&showwxpaytitle=1";
}
</script>
</body>
</html>
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
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ 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();
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0" />
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />
<meta name="format-detection" content="telephone=no" />
<title>微信公众号支付</title>
<link href="../css/css.css?t=<%=t%>" rel="stylesheet" type="text/css">
</head>
<body>
<div class="index_box">
<div class="apply_name">微信js支付测试</div>
<div class="branch_con">
<ul>
<li><span class="name">测试支付信息</span></li>
</ul>
<p class="cz_btn"><a href="javascript:pay();" class="btn_1">立即支付</a></p>
</div>
</div>
<script type="text/javascript" src="../js/common.js?t=<%=t%>"></script>
<script type="text/javascript">
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();
}
}
</script>
</body>
</html>
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。
var path="wxpay";
var mainpath = "/wxpay";
var appid = "wx16691fcb0523c1a4";
var urlpre = "http://www.xxx.com/wxpay/page";
var urlhost = "http://www.xxx.com/";
$(document).ready(function(){
$(".refresher").click(function(){
refresh();
});
$("#goback").click(function(){
goback();
});
});
function popupMsg(msg){
alert(msg);
}
function printUtilViaGet(panel, requestdata, ajaxurl, printfunction){
$.ajax({
type: 'GET',
url: ajaxurl,
data: requestdata,
cache:false,
dataType:"json",
async: false,
success: function(response) {
if (response.code){
if (panel != null && panel.length > 0){
$(panel).html("");
if (printfunction != null)
$(panel).html(printfunction(response.response));
}
return true;
} else {
//alert(response.reason);
}
},
error: function(x, e) {
//alert("error", x);
},
complete: function(x) {
//alert("call complete");
}
});
return false;
}
function ajaxUtilViaGet(requestdata, ajaxurl, succFunction, failFunction){
$.ajax({
url: ajaxurl,
type: "GET",
dataType: "json",
cache:false,
data: requestdata,
async: false,
success: function(response) {
if (response.code){
if (succFunction != null)
succFunction(response.response);
} else {
if (failFunction != null)
failFunction(response.response);
}
},
error: function(x, e) {
//alert("error", x);
},
complete: function(x) {
}
});
return false;
}
function printUtil(panel, requestdata, ajaxurl, printfunction, ajaxasync) {
if (isEmpty(ajaxasync)) {
ajaxasync = false;
}
$.ajax({
type : 'POST',
url : ajaxurl,
data : requestdata,
cache : false,
dataType : "json",
async : ajaxasync,
success : function(response) {
if (response.code) {
if (panel != null && panel.length > 0) {
$(panel).html("");
if (printfunction != null)
$(panel).html(printfunction(response.response));
}
return true;
} else {
// alert(response.reason);
}
},
error : function(x, e) {
// alert("error", x);
},
complete : function(x) {
// alert("call complete");
}
});
return false;
}
function appendUtil(panel, requestdata, ajaxurl, printfunction, ajaxasync) {
if (isEmpty(ajaxasync)) {
ajaxasync = false;
}
$.ajax({
type : 'POST',
url : ajaxurl,
data : requestdata,
cache : false,
dataType : "json",
async : ajaxasync,
success : function(response) {
if (response.code) {
if (panel != null && panel.length > 0) {
if (printfunction != null)
$(panel).append(printfunction(response.response));
}
return true;
} else {
// alert(response.reason);
}
},
error : function(x, e) {
// alert("error", x);
},
complete : function(x) {
// alert("call complete");
}
});
return false;
}
function ajaxUtilAsync(requestdata, ajaxurl, succFunction, failFunction) {
$.ajax({
url : ajaxurl,
type : "POST",
dataType : "json",
cache : false,
data : requestdata,
async : true,
success : function(response) {
if (typeof response.code == "number") {
if (response.code > 0) {
if (succFunction != null)
succFunction(response.response);
} else {
if (failFunction != null)
failFunction(response.response);
}
} else {
if (response.result) {
if (succFunction != null)
succFunction(response.response);
} else {
if (failFunction != null)
failFunction(response.response);
}
}
},
error : function(x, e) {
// alert("error", x);
},
complete : function(x) {
}
});
return false;
}
function ajaxUtil(requestdata, ajaxurl, succFunction, failFunction){
$.ajax({
url: ajaxurl,
type: "POST",
dataType: "json",
cache:false,
data: requestdata,
async: false,
success: function(response) {
if (typeof response.code == "number"){
if (response.code > 0){
if (succFunction != null)
succFunction(response.response);
} else {
if (failFunction != null)
failFunction(response.response);
}
} else {
if (response.result){
if (succFunction != null)
succFunction(response.response);
} else {
if (failFunction != null)
failFunction(response.response);
}
}
},
error: function(x, e) {
//alert("error", x);
},
complete: function(x) {
}
});
return false;
}
function loadSelection(panel, requestdata, ajaxurl, itemName){
ajaxUtil(requestdata, ajaxurl, function(response){
var list = response.list;
for (var i = 0;i<list.length;i++){
$(panel).append("<option value='"+list[i][itemName]+"'>"+list[i][itemName]+"</option>");
}
}, null);
}
function ajaxSubmitRefresh(formId) {
var hideForm = $(formId);
var options = {
dataType : "json",
beforeSubmit : function() {
},
success : function(result) {
if (result.result){
showMsg("提交成功");
} else {
alert("提交失败！");
}
},
error : function(result) {
alert("提交失败！");
}
};
hideForm.ajaxSubmit(options);
}
function ajaxSubmitWithJump(formId, nextPage) {
var hideForm = $(formId);
var options = {
dataType : "json",
beforeSubmit : function() {
},
success : function(result) {
if (result.result){
alert("提交成功");
window.location.href = nextPage;
} else {
alert("提交失败！");
}
},
error : function(result) {
alert("提交失败！");
}
};
hideForm.ajaxSubmit(options);
}
function refresh(){
window.location.href = window.location.href;
}
function goback(){
history.go(-1);
}
function urlparameter(paras){
var url = location.href;
var paraString = url.substring(url.indexOf("?")+1,url.length).split("&");
var paraObj = {};
for (var i=0; j=paraString[i]; i++){
paraObj[j.substring(0,j.indexOf("=")).toLowerCase()] = j.substring(j.indexOf("=")+1,j.length);
}
var returnValue = paraObj[paras.toLowerCase()];
if(typeof(returnValue)=="undefined"){
return "";
}else{
return returnValue;
}
}
String.prototype.endWith=function(str){
if(str==null||str==""||this.length==0||str.length>this.length)
return false;
if(this.substring(this.length-str.length)==str)
return true;
else
return false;
return true;
};
String.prototype.startWith=function(str){
if(str==null||str==""||this.length==0||str.length>this.length)
return false;
if(this.substr(0,str.length)==str)
return true;
else
return false;
return true;
};
function getFileUrl(sourceId) {
var url = "";
if (navigator.userAgent.indexOf("MSIE")>=1) { // IE
url = document.getElementById(sourceId).value;
} else if(navigator.userAgent.indexOf("Firefox")>0) { // Firefox
url = window.URL.createObjectURL(document.getElementById(sourceId).files.item(0));
} else if(navigator.userAgent.indexOf("Chrome")>0) { // Chrome
url = window.URL.createObjectURL(document.getElementById(sourceId).files.item(0));
}
return url;
}
function preImg(sourceId, targetId) {
var url = getFileUrl(sourceId);
var imgPre = document.getElementById(targetId);
imgPre.src = url;
}
function initWX(){
$.ajax({
url:mainpath+'/wechatjs.do',
type:'POST',
dataType:'json',
async: false,
data: {url:location.href.split('#')[0]},
success:function(result){
console.log(result);
var data=result['response']['map'];
if(result['code']==1){
wx.config({
debug: false,
appId:data['appId'],
timestamp:data['timestamp'],
nonceStr:data['nonceStr'],
signature:data['signature'],
jsApiList: ['onMenuShareTimeline','onMenuShareAppMessage','getLocation', 'onMenuShareQQ', 'onMenuShareWeibo']
});
}else{
alert("fail to get code");
window.alert('fail');
};
}
});
}
var EARTH_RADIUS = 6378137.0; //单位M
var PI = Math.PI;
function getRad(d){
return d*PI/180.0;
}
function getGreatCircleDistance(lat1,lng1,lat2,lng2){
var radLat1 = getRad(lat1);
var radLat2 = getRad(lat2);
var a = radLat1 - radLat2;
var b = getRad(lng1) - getRad(lng2);
var s = 2*Math.asin(Math.sqrt(Math.pow(Math.sin(a/2),2) + Math.cos(radLat1)*Math.cos(radLat2)*Math.pow(Math.sin(b/2),2)));
s = s*EARTH_RADIUS;
s = Math.round(s*10000)/10000.0;
s = Math.round(s);
return s;
}
//对Date的扩展，将 Date 转化为指定格式的String
//月(M)、日(d)、小时(h)、分(m)、秒(s)、季度(q) 可以用 1-2 个占位符，
//年(y)可以用 1-4 个占位符，毫秒(S)只能用 1 个占位符(是 1-3 位的数字)
//例子：
//(new Date()).Format("yyyy-MM-dd hh:mm:ss.S") ==> 2006-07-02 08:09:04.423
//(new Date()).Format("yyyy-M-d h:m:s.S") ==> 2006-7-2 8:9:4.18
Date.prototype.format = function(fmt)
{ //author: meizz
var o = {
"M+" : this.getMonth()+1, //月份
"d+" : this.getDate(), //日
"h+" : this.getHours(), //小时
"m+" : this.getMinutes(), //分
"s+" : this.getSeconds(), //秒
"q+" : Math.floor((this.getMonth()+3)/3), //季度
"S" : this.getMilliseconds() //毫秒
};
if(/(y+)/.test(fmt))
fmt=fmt.replace(RegExp.$1, (this.getFullYear()+"").substr(4 - RegExp.$1.length));
for(var k in o)
if(new RegExp("("+ k +")").test(fmt))
fmt = fmt.replace(RegExp.$1, (RegExp.$1.length==1) ? (o[k]) : (("00"+ o[k]).substr((""+ o[k]).length)));
return fmt;
};
//判断为空
function isEmpty(src){
if(("undefined" == typeof src) || (src == null) || ($.trim(src) == "") ){
return true;
}
return false;
}
//判断不为空
function notEmpty(src){
return !isEmpty(src);
}
//微信页面授权 snsapi_base方式
function wecharauto2burl(url) {
return "https://open.weixin.qq.com/connect/oauth2/authorize?appid=" + appid
+ "&redirect_uri=" + encodeURIComponent(url)
+ "&response_type=code&scope=snsapi_base&state=xybank#wechat_redirect";
}
//页面授权针对snsapi_base方式授权的url
function wecharauto2baseurl(url) {
return wecharauto2burl(urlpre+url);
}
//页面授权针对snsapi_userinfo方式授权的url
function wecharauto2userinfourl(url) {
return "https://open.weixin.qq.com/connect/oauth2/authorize?appid=" + appid
+ "&redirect_uri=" + encodeURIComponent(urlpre+url)
+ "&response_type=code&scope=snsapi_userinfo&state=xybank#wechat_redirect";
}
//微信分享 此方法需放在wx.ready中
function shareWeChat(title, link, imgUrl, desc){
wx.onMenuShareTimeline({
title: title, // 分享标题
link: link, // 分享链接
imgUrl: imgUrl, // 分享图标
success: function () {
// 用户确认分享后执行的回调函数
},
cancel: function () {
// 用户取消分享后执行的回调函数
}
});
//分享给朋友
wx.onMenuShareAppMessage({
title: title, // 分享标题
desc: desc, // 分享描述
link: link, // 分享链接
imgUrl: imgUrl, // 分享图标
type: 'link', // 分享类型,music、video或link，不填默认为link
dataUrl: '', // 如果type是music或video，则要提供数据链接，默认为空
success: function () {
// 用户确认分享后执行的回调函数
},
cancel: function () {
// 用户取消分享后执行的回调函数
}
});
//分享到QQ
wx.onMenuShareQQ({
title: title, // 分享标题
desc: desc, // 分享描述
link: link, // 分享链接
imgUrl: imgUrl, // 分享图标
success: function () {
// 用户确认分享后执行的回调函数
},
cancel: function () {
// 用户取消分享后执行的回调函数
}
});
//分享到腾讯微博
wx.onMenuShareWeibo({
title: title, // 分享标题
desc: desc, // 分享描述
link: link, // 分享链接
imgUrl: imgUrl, // 分享图标
success: function () {
// 用户确认分享后执行的回调函数
},
cancel: function () {
// 用户取消分享后执行的回调函数
}
});
}
五、支付结果
公众号调起效果如下：
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。