com.fastchar.pay.wx.WxPayUtils Maven / Gradle / Ivy
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FastChar-Pay is a FastChar plugin.
package com.fastchar.pay.wx;
import com.fastchar.core.FastChar;
import com.fastchar.utils.FastDateUtils;
import com.fastchar.utils.FastNumberUtils;
import com.fastchar.utils.FastStringUtils;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.client.methods.RequestBuilder;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import javax.servlet.http.HttpServletRequest;
import javax.xml.XMLConstants;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.net.URI;
import java.util.*;
public class WxPayUtils {
private static String sign(String apiKey, Map params) {
Set keys = params.keySet();
TreeSet ts = new TreeSet(keys);
StringBuilder sb = new StringBuilder();
for (String key : ts) {
sb.append(key);
sb.append('=');
sb.append(params.get(key));
sb.append('&');
}
sb.append("key=").append(apiKey);
return FastChar.getSecurity().MD5_Encrypt(sb.toString()).toUpperCase();
}
private static String buildPostParamsByXml(Map params) throws Exception {
StringBuilder sb = new StringBuilder();
sb.append("");
Set keys = params.keySet();
for (String key : keys) {
sb.append("<").append(key).append(">");
sb.append(params.get(key));
sb.append("");
}
sb.append(" ");
return new String(sb.toString().getBytes("utf-8"), "ISO8859-1");
}
private static Map convertXmlStringToMap(String xmlStr) {
Map map = new HashMap();
try {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(new InputSource(new StringReader(xmlStr)));
Element root = doc.getDocumentElement();
NodeList books = root.getChildNodes();
if (books != null) {
for (int i = 0; i < books.getLength(); i++) {
Node book = books.item(i);
if (book.getNodeType() == Node.ELEMENT_NODE) {
map.put(book.getNodeName(), book.getTextContent());
}
}
}
return map;
} catch (Exception ex) {
ex.printStackTrace();
return null;
}
}
private static Map convertXmlStreamToMap(InputStream inputStream) {
Map map = new HashMap();
try {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
dbf.setFeature("http://xml.org/sax/features/external-general-entities", false);
dbf.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
dbf.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
dbf.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);
dbf.setXIncludeAware(false);
dbf.setExpandEntityReferences(false);
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(inputStream);
Element root = doc.getDocumentElement();
NodeList books = root.getChildNodes();
if (books != null) {
for (int i = 0; i < books.getLength(); i++) {
Node book = books.item(i);
if (book.getNodeType() == Node.ELEMENT_NODE) {
map.put(book.getNodeName(), book.getTextContent());
}
}
}
} catch (Exception ex) {
ex.printStackTrace();
}
return map;
}
private static long genTimeStamp() {
return System.currentTimeMillis() / 1000;
}
/**
* 获得微信回调的map内容
*
* @param request 请求
* @return map
* @throws IOException 输入流异常
*/
public static Map getCallBack(HttpServletRequest request) throws IOException {
return convertXmlStreamToMap(request.getInputStream());
}
/**
* 验证微信支付回调
*/
public static boolean verifyCallBack(Map dataMap) {
FastWxPayConfig wxPayConfig = FastChar.getOverrides().singleInstance(FastWxPayConfig.class);
String sign = dataMap.get("sign");
String mch_id = dataMap.get("mch_id");
if (!mch_id.equals(wxPayConfig.getMchId())) {
return false;
}
Set keySet = dataMap.keySet();
Map signMap = new HashMap();
for (String string : keySet) {
if (string.equals("sign")) continue;
signMap.put(string, dataMap.get(string));
}
String currSign = WxPayUtils.sign(wxPayConfig.getApiKey(), signMap);
if (sign.equals(currSign)) {
//支付成功
return "SUCCESS".equals(dataMap.get("return_code"));
}
return false;
}
/**
* 获得返回的金额 单位元
*/
public static double getReturnMoney(Map dataMap) {
//total_fee
int total_fee = FastNumberUtils.formatToInt(dataMap.get("total_fee"));//单位 分
return FastNumberUtils.formatToDouble(total_fee) / 100.0;
}
/**
* 发起手机APP支付
*
* @param out_trade_no 支付订单号
* @param body 订单标题
* @param details 订单详情
* @param money 支付金额
* @param fromIP 请求的IP地址
* @return 发起微信APP支付的配置信息
*/
public static Map requestAppPay(String out_trade_no,
String body,
String details, double money, String fromIP) throws Exception {
FastWxPayConfig wxPayConfig = FastChar.getOverrides().singleInstance(FastWxPayConfig.class);
if (FastStringUtils.isEmpty(wxPayConfig.getAppId())) {
throw new Exception("微信AppId不可为空！请在WxPayConfig中配置！");
}
if (FastStringUtils.isEmpty(wxPayConfig.getMchId())) {
throw new Exception("微信mchId不可为空！请在WxPayConfig中配置！");
}
if (FastStringUtils.isEmpty(wxPayConfig.getApiKey())) {
throw new Exception("微信apiKey不可为空！请在WxPayConfig中配置！");
}
if (FastStringUtils.isEmpty(wxPayConfig.getNotifyUrl())) {
throw new Exception("微信notifyUrl不可为空！请在WxPayConfig中配置！");
}
Map params = new HashMap();
params.put("appid", wxPayConfig.getAppId());
params.put("mch_id", wxPayConfig.getMchId());
params.put("device_info", "WEB");
params.put("nonce_str", FastStringUtils.buildOnlyCode("WX"));
params.put("body", body);
params.put("detail", details);
params.put("out_trade_no", out_trade_no);
params.put("total_fee", (int) (FastNumberUtils.formatToFloat(money) * 100) + "");
params.put("spbill_create_ip", fromIP);
params.put("time_start", FastDateUtils.getDateString("yyyyMMddHHmmss"));
params.put("notify_url", wxPayConfig.getNotifyUrl());
params.put("trade_type", FastWxPayConfig.TradeTypeEnum.APP.name());
params.put("sign", sign(wxPayConfig.getApiKey(), params));
if (FastChar.getConstant().isDebug()) {
FastChar.getLog().info("微信支付：[" + out_trade_no + "] [" + body + "] [" + money + "] [" + wxPayConfig.getNotifyUrl() + "]");
}
StringEntity stringEntity = new StringEntity(buildPostParamsByXml(params));
HttpUriRequest wxPay = RequestBuilder.post()
.setUri(new URI("https://api.mch.weixin.qq.com/pay/unifiedorder"))
.setEntity(stringEntity)
.build();
CloseableHttpClient httpclient = HttpClients.custom()
.build();
try (CloseableHttpResponse response = httpclient.execute(wxPay)) {
HttpEntity entity = response.getEntity();
Map result = convertXmlStringToMap(EntityUtils.toString(entity, "utf-8"));
if (result == null) {
return null;
}
EntityUtils.consume(entity);
Map appSignParams = new HashMap();
appSignParams.put("appid", wxPayConfig.getAppId());
appSignParams.put("package", "Sign=WXPay");
appSignParams.put("partnerid", wxPayConfig.getMchId());
appSignParams.put("prepayid", result.get("prepay_id"));
appSignParams.put("noncestr", FastStringUtils.buildOnlyCode("WX"));
appSignParams.put("timestamp", String.valueOf(genTimeStamp()));
appSignParams.put("sign", sign(wxPayConfig.getApiKey(), appSignParams));
appSignParams.put("msg", result.get("return_msg"));
return appSignParams;
}
}
/**
* 根据授权码获得用户信息
*
* @param authorCode
* @return
*/
public static Map getUserInfo(String authorCode) {
CloseableHttpResponse response;
HttpEntity entity;
try {
FastWxPayConfig wxPayConfig = FastChar.getOverrides().singleInstance(FastWxPayConfig.class);
if (FastStringUtils.isEmpty(wxPayConfig.getAppId())) {
throw new Exception("微信AppId不可为空！请在WxPayConfig中配置！");
}
if (FastStringUtils.isEmpty(wxPayConfig.getAppSecret())) {
throw new Exception("微信AppSecret不可为空！请在WxPayConfig中配置！");
}
String url = "https://api.weixin.qq.com/sns/oauth2/access_token?" +
"appid=" + wxPayConfig.getAppId()
+ "&secret=" + wxPayConfig.getAppSecret()
+ "&code=" + authorCode
+ "&grant_type=authorization_code";
HttpUriRequest authRequest = RequestBuilder.get()
.setUri(new URI(url))
.build();
CloseableHttpClient httpclient = HttpClients.custom()
.build();
response = httpclient.execute(authRequest);
entity = response.getEntity();
String result = EntityUtils.toString(entity, "utf-8");
Map authMap = FastChar.getJson().fromJson(result, Map.class);
try {
EntityUtils.consume(entity);
response.close();
} catch (Exception ignored) {
}
String openid = authMap.get("openid").toString();
String access_token = authMap.get("access_token").toString();
HttpUriRequest userRequest = RequestBuilder.get()
.setUri(new URI("https://api.weixin.qq.com/sns/userinfo?access_token=" + access_token + "&openid=" + openid))
.build();
response = httpclient.execute(userRequest);
entity = response.getEntity();
String userResult = EntityUtils.toString(entity, "utf-8");
Map authorMap = FastChar.getJson().fromJson(userResult, Map.class);
try {
EntityUtils.consume(entity);
response.close();
} catch (Exception ignored) {
}
return authorMap;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
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