微信支付
1、準備基本配置信息（即在微信支付平臺申請的APP_ID、APP_SECRET、PARTNER、PARTNER_KEY）php
//微信支付標識 public static final String APP_ID="xxxxx"; //微信支付密鑰 public static final String APP_SECRET="xxxxxx"; //商戶號支付密鑰 public static final String PARTNER_KEY="xxxxx"; //商戶號 public static final String PARTNER="xxxx";
2、調用微信支付平臺中的統一下單API，進行下單處理（參數簽名、生成支付ID等信息給客戶端），參數說明參照，官網說明html
3、如何在服務端進行下單操做：java
1.構建微信支付服務器簽名支付請求請求類node
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.*;
/*
'微信支付服務器簽名支付請求請求類
'============================================================================
'api說明：
'init(app_id, app_secret, partner_key, app_key);
'初始化函數，默認給一些參數賦值，如cmdno,date等。
'setKey(key_)'設置商戶密鑰
'getLasterrCode(),獲取最後錯誤號
'GetToken();獲取Token
'getTokenReal();Token過時後實時獲取Token
'createMd5Sign(signParams);生成Md5簽名
'genPackage(packageParams);獲取package包
'createSHA1Sign(signParams);建立簽名SHA1
'sendPrepay(packageParams);提交預支付
'getDebugInfo(),獲取debug信息
'============================================================================
'*/
public class RequestHandler {
/** Token獲取網關地址地址 */
private String tokenUrl;
/** 預支付網關url地址 */
private String gateUrl;
/** 查詢支付通知網關URL */
private String notifyUrl;
/** 商戶參數 */
private String appid;
private String appkey;
private String partnerkey;
private String appsecret;
private String key;
/** 請求的參數 */
private SortedMap parameters;
/** Token */
private String Token;
private String charset;
/** debug信息 */
private String debugInfo;
private String last_errcode;
private HttpServletRequest request;
private HttpServletResponse response;
/**
* 初始構造函數。
*
* @return
*/
public RequestHandler(HttpServletRequest request,
HttpServletResponse response) {
this.last_errcode = "0";
this.request = request;
this.response = response;
//this.charset = "GBK";
this.charset = "UTF-8";
this.parameters = new TreeMap();
// 驗證notify支付訂單網關
notifyUrl = "https://gw.tenpay.com/gateway/simpleverifynotifyid.xml";
}
/**
* 初始化函數。
*/
public void init(String app_id, String app_secret, String partner_key) {
this.last_errcode = "0";
this.Token = "token_";
this.debugInfo = "";
this.appid = app_id;
this.partnerkey = partner_key;
this.appsecret = app_secret;
this.key = partner_key;
}
public void init() {
}
/**
* 獲取最後錯誤號
*/
public String getLasterrCode() {
return last_errcode;
}
/**
*獲取入口地址,不包含參數值
*/
public String getGateUrl() {
return gateUrl;
}
/**
* 獲取參數值
*
* @param parameter
* 參數名稱
* @return String
*/
public String getParameter(String parameter) {
String s = (String) this.parameters.get(parameter);
return (null == s) ? "" : s;
}
//設置密鑰
public void setKey(String key) {
this.partnerkey = key;
}
//設置微信密鑰
public void setAppKey(String key){
this.appkey = key;
}
// 特殊字符處理
public String UrlEncode(String src) throws UnsupportedEncodingException {
return URLEncoder.encode(src, this.charset).replace("+", "%20");
}
// 獲取package的簽名包
public String genPackage(SortedMap<String, String> packageParams,String partnerkey)
throws UnsupportedEncodingException {
String sign = createSign(packageParams,partnerkey);
StringBuffer sb = new StringBuffer();
Set es = packageParams.entrySet();
Iterator it = es.iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
String k = (String) entry.getKey();
String v = (String) entry.getValue();
sb.append(k + "=" + UrlEncode(v) + "&");
}
// 去掉最後一個&
String packageValue = sb.append("sign=" + sign).toString();
// System.out.println("UrlEncode後 packageValue=" + packageValue);
return packageValue;
}
/**
* 建立md5摘要,規則是:按參數名稱a-z排序,遇到空值的參數不參加簽名。
*/
public String createSign(SortedMap<String, String> packageParams,String partnerkey) {
StringBuffer sb = new StringBuffer();
Set es = packageParams.entrySet();
Iterator it = es.iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
String k = (String) entry.getKey();
String v = (String) entry.getValue();
if (null != v && !"".equals(v) && !"sign".equals(k)&& !"key".equals(k)) {
sb.append(k + "=" + v + "&");
}
}
sb.append("key=" + partnerkey);
System.out.println("md5 sb:" + sb+"key="+this.getKey());
String sign = MD5Util.MD5Encode(sb.toString(), this.charset)
.toUpperCase();
System.out.println("packge簽名:" + sign);
return sign;
}
/**
* 建立package簽名
*/
public boolean createMd5Sign(String signParams) {
StringBuffer sb = new StringBuffer();
Set es = this.parameters.entrySet();
Iterator it = es.iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
String k = (String) entry.getKey();
String v = (String) entry.getValue();
if (!"sign".equals(k) && null != v && !"".equals(v)) {
sb.append(k + "=" + v + "&");
}
}
// 算出摘要
String enc = TenpayUtil.getCharacterEncoding(this.request,
this.response);
String sign = MD5Util.MD5Encode(sb.toString(), enc).toLowerCase();
String tenpaySign = this.getParameter("sign").toLowerCase();
// debug信息
this.setDebugInfo(sb.toString() + " => sign:" + sign + " tenpaySign:"
+ tenpaySign);
return tenpaySign.equals(sign);
}
//輸出XML
public String parseXML() {
StringBuffer sb = new StringBuffer();
sb.append("<xml>");
Set es = this.parameters.entrySet();
Iterator it = es.iterator();
while(it.hasNext()) {
Map.Entry entry = (Map.Entry)it.next();
String k = (String)entry.getKey();
String v = (String)entry.getValue();
if(null != v && !"".equals(v) && !"appkey".equals(k)) {
sb.append("<" + k +">" + getParameter(k) + "</" + k + ">\n");
}
}
sb.append("</xml>");
return sb.toString();
}
/**
* 設置debug信息
*/
protected void setDebugInfo(String debugInfo) {
this.debugInfo = debugInfo;
}
public void setPartnerkey(String partnerkey) {
this.partnerkey = partnerkey;
}
public String getDebugInfo() {
return debugInfo;
}
public String getKey() {
return partnerkey;
}
}
2.構建微信支付簽名參數git
private String weiPaySignParams(String imei, String reqIP, RequestHandler reqHandler, String remoteAddr, String orderNo, ThirdOrderInfoObj thirdOrderObj, WeUserModel weUserModel, String goodsOrderToken) {
String result = "";
try {
//接收財付統統知的URL 即訂單支付完成回調地址
String notify_url = SysUtil.readPro("weiPayV3.callback.path");
//金額轉化爲分爲單位
String finalmoney = (int)(thirdOrderObj.getPayprice()*100)+"";
WeiPayObj weiPayObj = new WeiPayObj(orderNo,notify_url,orderNo,finalmoney,remoteAddr,"商品購買") ;
WeiPayObj resultWeiPayObj = WeiPaySignUtils.weiPaySign(weiPayObj,reqHandler);
int addResult = OrderUtils.createOrder(imei,reqIP,"weiPay", orderNo, "", resultWeiPayObj.getFinalSign(),thirdOrderObj,weUserModel,goodsOrderToken);
if(addResult>0){
result = OrderUtils.printJson(1, "上報成功", WeiPayConfig.APP_ID, WeiPayConfig.PARTNER, "Sign=WXPay", resultWeiPayObj.getNonceStr(), resultWeiPayObj.getTimestamp(), resultWeiPayObj.getPrepayId(), resultWeiPayObj.getFinalSign(), orderNo, "", thirdOrderObj.getOrdernum());
}else{
result = "{\"status\":0,\"errorCode\":\"5004\",\"message\":\"訂單入庫失敗\"}";
}
} catch (Exception e) {
log.error("", e);
e.printStackTrace();
result = "{\"status\":0,\"errorCode\":\"5003\",\"message\":\"簽名過程失敗\"}";
}
return result;
}
3.構建微信支付參數實體類WeiPayObj apache
public class WeiPayObj {
private String orderNum;
private String notifyUrl; //回調地址
private String orderNo; //訂單號
private String finalMoney; //金額
private String remoteAddr; //Ip 默認 127.0.0.1
private String nonceStr; //隨機串
private String timestamp; //時間戳
private String prepayId; //預付單ＩＤ
private String finalSign; //簽名結果
private String attach; //訂單描述
// 省略 set get方法
}
4.構建微信支付簽名工具類api
import com.tenpay.util.WXUtil;
import com.weipayv3.utils.RequestHandler;
import com.weipayv3.utils.Sha1Util;
import com.weipayv3.utils.WeiPayConfig;
import com.weipayv3.utils.WxOrderUtil;
import java.util.SortedMap;
import java.util.TreeMap;
/**
* 微信支付V3版簽名
*/
public class WeiPaySignUtils {
public static WeiPayObj weiPaySign(WeiPayObj weiPayObj,RequestHandler reqHandler){
String appid = WeiPayConfig.APP_ID;
//應用對應的憑證
String appsecret = WeiPayConfig.APP_SECRET;
//商戶號對應的密鑰
String partnerkey = WeiPayConfig.PARTNER_KEY;
//商戶號
String partner = WeiPayConfig.PARTNER;
//隨機串
String noncestr = getNonceStr();
String body = weiPayObj.getOrderNum();
String attach = weiPayObj.getAttach();
SortedMap<String, String> packageParams = new TreeMap<String, String>();
packageParams.put("appid", appid);
packageParams.put("attach", attach);
//商品
packageParams.put("body", body);
packageParams.put("mch_id", partner);
//隨機串
packageParams.put("nonce_str", noncestr);
//回調地址
packageParams.put("notify_url", weiPayObj.getNotifyUrl());
//商品訂單號
packageParams.put("out_trade_no", weiPayObj.getOrderNo());
//這裏寫的金額爲1 分到時修改
packageParams.put("total_fee", weiPayObj.getFinalMoney());
packageParams.put("trade_type", "APP");
//請求地址
packageParams.put("spbill_create_ip", weiPayObj.getRemoteAddr());
reqHandler.init(appid, appsecret, partnerkey);
//預付單簽名
String sign = reqHandler.createSign(packageParams,partnerkey);
String xml = "<xml>" +
"<appid>" + appid + "</appid>" +
"<mch_id>" + partner + "</mch_id>" +
"<nonce_str>" + noncestr + "</nonce_str>" +
"<sign>" + sign + "</sign>" +
"<body><![CDATA[" + body + "]]></body>" +
"<attach>" + attach + "</attach>" +
"<out_trade_no>" + weiPayObj.getOrderNo() + "</out_trade_no>" +
"<total_fee>" + weiPayObj.getFinalMoney() + "</total_fee>" +
"<spbill_create_ip>" + weiPayObj.getRemoteAddr() + "</spbill_create_ip>" +
"<notify_url>" + weiPayObj.getNotifyUrl() + "</notify_url>" +
"<trade_type>APP</trade_type>" +
"</xml>";
//預付單
String prepay_id = WxOrderUtil.getPrepayId(xml);
SortedMap<String, String> finalpackage = new TreeMap<String, String>();
String timestamp = Sha1Util.getTimeStamp();
finalpackage.put("appid", appid);
finalpackage.put("noncestr", noncestr);
finalpackage.put("package", "Sign=WXPay");
finalpackage.put("partnerid", partner);
finalpackage.put("prepayid", prepay_id);
finalpackage.put("timestamp", timestamp);
//簽名
String finalsign = reqHandler.createSign(finalpackage,partnerkey);
weiPayObj.setPrepayId(prepay_id);
weiPayObj.setTimestamp(timestamp);
weiPayObj.setNonceStr(noncestr);
weiPayObj.setFinalSign(finalsign);
return weiPayObj;
}
public String getNonceStr() {
Random random = new Random();
return MD5Util.MD5Encode(String.valueOf(random.nextInt(10000)), "GBK");
}
}
4.構建參數簽名工具類服務器
/*
'============================================================================
'api說明：
'createSHA1Sign建立簽名SHA1
'getSha1()Sha1簽名
'============================================================================
'*/
public class Sha1Util {
public static String getNonceStr() {
Random random = new Random();
return MD5Util.MD5Encode(String.valueOf(random.nextInt(10000)), "UTF-8");
}
public static String getTimeStamp() {
return String.valueOf(System.currentTimeMillis() / 1000);
}
//建立簽名SHA1
public static String createSHA1Sign(SortedMap<String, String> signParams) throws Exception {
StringBuffer sb = new StringBuffer();
Set es = signParams.entrySet();
Iterator it = es.iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
String k = (String) entry.getKey();
String v = (String) entry.getValue();
sb.append(k + "=" + v + "&");
//要採用URLENCODER的原始值！
}
String params = sb.substring(0, sb.lastIndexOf("&"));
// System.out.println("sha1以前:" + params);
// System.out.println("SHA1簽名爲："+getSha1(params));
return getSha1(params);
}
//Sha1簽名
public static String getSha1(String str) {
if (str == null || str.length() == 0) {
return null;
}
char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'a', 'b', 'c', 'd', 'e', 'f' };
try {
MessageDigest mdTemp = MessageDigest.getInstance("SHA1");
mdTemp.update(str.getBytes("UTF-8"));
byte[] md = mdTemp.digest();
int j = md.length;
char buf[] = new char[j * 2];
int k = 0;
for (int i = 0; i < j; i++) {
byte byte0 = md[i];
buf[k++] = hexDigits[byte0 >>> 4 & 0xf];
buf[k++] = hexDigits[byte0 & 0xf];
}
return new String(buf);
} catch (Exception e) {
return null;
}
}
}
5.構建微信支付生成預付單工具類微信
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import java.util.HashMap;
import java.util.Map;
/**
* 微信支付訂單工具類
* @author binshangwen
* @date 2016-12-14
*/
public class WxOrderUtil{
/**
* 訂單預支付ID
*/
public static String getPrepayId(String xml) {
String prepay_id="";
String unifiedorder = "https://api.mch.weixin.qq.com/pay/unifiedorder";
// 建立HttpClientBuilder
HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();
// HttpClient
CloseableHttpClient closeableHttpClient = httpClientBuilder.build();
HttpPost httpPost = new HttpPost(unifiedorder);
StringEntity entity;
try {
entity = new StringEntity(xml, "utf-8");
httpPost.setEntity(entity);
HttpResponse httpResponse;
// post請求
httpResponse = closeableHttpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
if (httpEntity != null) {
// 打印響應內容
String result = EntityUtils.toString(httpEntity, "UTF-8");
System.out.println(result);
// 過濾
result = result.replaceAll("<![CDATA[|]]>", "");
prepay_id = Jsoup.parse(result).select("prepay_id").html();
if (prepay_id != null)
return prepay_id;
}
// 釋放資源
closeableHttpClient.close();
} catch (Exception e) {
e.printStackTrace();
}
return prepay_id;
}
/**
* 訂單查詢
* @param xml
* @return
*/
public static Map<String, String> reqOrderquery(String xml){
// 建立HttpClientBuilder
HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();
// HttpClient
CloseableHttpClient closeableHttpClient = httpClientBuilder.build();
HttpPost httpPost = new HttpPost("https://api.mch.weixin.qq.com/pay/orderquery");
System.out.println(xml);
StringEntity entity;
Map<String, String> map = null;
try {
entity = new StringEntity(xml, "utf-8");
httpPost.setEntity(entity);
HttpResponse httpResponse;
// post請求
httpResponse = closeableHttpClient.execute(httpPost);
// getEntity()
HttpEntity httpEntity = httpResponse.getEntity();
if (httpEntity != null) {
// 打印響應內容
String result = EntityUtils.toString(httpEntity, "UTF-8");
System.out.println(result);
// 過濾
result = result.replaceAll("<![CDATA[|]]>", "");
System.out.println(result);
Document doc= Jsoup.parse(result);
map = mapPutData(doc);
}
// 釋放資源
closeableHttpClient.close();
} catch (Exception e) {
e.printStackTrace();
}
return map;
}
/**
*構造訂單查詢返回結果
* @param doc
* @return
*/
public static Map<String, String> mapPutData(Document doc){
Map<String, String> map = new HashMap<String, String>();
String appid="",mch_id="",sign="",result_code="",err_code="",err_code_des="",
trade_type="",trade_state="",total_fee="",transaction_id="",out_trade_no="",trade_state_desc="",return_code="",return_msg="";
if(doc!=null){
return_code=doc.select("return_code").html();
return_msg=doc.select("return_msg").html();
appid=doc.select("appid").html();
mch_id=doc.select("mch_id").html();
sign=doc.select("sign").html();
result_code=doc.select("result_code").html();
err_code=doc.select("err_code").html();
err_code_des=doc.select("err_code_des").html();
trade_type=doc.select("trade_type").html();
trade_state=doc.select("trade_state").html();
total_fee=doc.select("total_fee").html();
transaction_id=doc.select("transaction_id").html();
out_trade_no =doc.select("out_trade_no").html();
trade_state_desc =doc.select("trade_state_desc").html();
}
map.put("return_code",return_code);
map.put("return_msg",return_msg);
map.put("appid",appid);
map.put("mch_id",mch_id);
map.put("sign",sign);
map.put("result_code",result_code);
map.put("err_code",err_code);
map.put("err_code_des",err_code_des);
map.put("trade_type",trade_type);
map.put("trade_state",trade_state);
map.put("total_fee",total_fee);
map.put("transaction_id",transaction_id);
map.put("out_trade_no",out_trade_no);
map.put("trade_state_desc",trade_state_desc);
return map;
}
}
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