撸了今年阿里、网易和美团的面试，我有一个重要发现.......>>>
前言：之前接APP支付,微信遇到了一点点坑，为了方便以后copy，把之前写的代码粘贴出来。需要的同学可以参考一下，具体参数说明还请详细查看官方文档:
支付宝回调参数说明：https://doc./docs/doc.htm?treeId=193&articleId=105301&docType=1
微信支付回调参数：https://pay./wiki/doc/api/app/app.php?chapter=9_7&index=3
1.微信支付
1.0 导入xml支持
<!--XML支持--><dependency><groupId>com.thoughtworks.xstream</groupId><artifactId>xstream</artifactId><version>1.4.7</version></dependency><dependency><groupId>org.jdom</groupId><artifactId>jdom2</artifactId><version>2.0.6</version></dependency><dependency><groupId>dom4j</groupId><artifactId>dom4j</artifactId><version>1.6.1</version></dependency>
1.1 微信统一下单
/*** 统一下单** @param orderSn* @param totalFee* @param spBillCreateIP* @return*/public static Map<Object, Object> sendWxPayRequest(String orderSn, String totalFee, String spBillCreateIP) {//签名SortedMap<Object, Object> parameters = new TreeMap<>();parameters.put("appid", Constant.APPID);parameters.put("body", Constant.ORDER_NAME);parameters.put("mch_id", Constant.MCH_ID);parameters.put("nonce_str", String.valueOf(new Date().getTime()));parameters.put("notify_url", Constant.CONFIGMAP.get("weixin.asynchronousNotifyUrl"));parameters.put("out_trade_no", orderSn);parameters.put("spbill_create_ip", spBillCreateIP);parameters.put("total_fee", totalFee);parameters.put("trade_type", "APP");String sign = createSign("utf-8", parameters);//请求xml参数StringBuffer requestStr = new StringBuffer("<xml>");requestStr.append("<appid><![CDATA[");requestStr.append(parameters.get("appid"));requestStr.append("]]></appid>");requestStr.append("<body><![CDATA[");requestStr.append(parameters.get("body"));requestStr.append("]]></body>");requestStr.append("<mch_id><![CDATA[");requestStr.append(parameters.get("mch_id"));requestStr.append("]]></mch_id>");requestStr.append("<nonce_str><![CDATA[");requestStr.append(parameters.get("nonce_str"));requestStr.append("]]></nonce_str>");requestStr.append("<notify_url><![CDATA[");requestStr.append(parameters.get("notify_url"));requestStr.append("]]></notify_url>");requestStr.append("<out_trade_no><![CDATA[");requestStr.append(parameters.get("out_trade_no"));requestStr.append("]]></out_trade_no>");requestStr.append("<spbill_create_ip><![CDATA[");requestStr.append(parameters.get("spbill_create_ip"));requestStr.append("]]></spbill_create_ip>");requestStr.append("<total_fee><![CDATA[");requestStr.append(parameters.get("total_fee"));requestStr.append("]]></total_fee>");requestStr.append("<trade_type><![CDATA[");requestStr.append(parameters.get("trade_type"));requestStr.append("]]></trade_type>");requestStr.append("<sign><![CDATA[");requestStr.append(sign);requestStr.append("]]></sign>");requestStr.append("</xml>");try {String body = HttpUtil.post(Constant.ORDER_URL, requestStr.toString());String resultStr = new String(body.getBytes("ISO-8859-1"), "utf-8");SortedMap<Object, Object> resultMap = XMLUtil.doXMLParse(resultStr);logger.info("微信统一下单响应参数= {}", JSON.toJSON(resultMap));if (Constant.SUCCESS.equals(resultMap.get("result_code"))) {String package1 = "Sign=WXPay";SortedMap<Object, Object> payParameters = new TreeMap<>();payParameters.put("appid", Constant.APPID);payParameters.put("partnerid", Constant.MCH_ID);payParameters.put("prepayid", resultMap.get("prepay_id"));payParameters.put("package", package1);payParameters.put("noncestr", String.valueOf(new Date().getTime()));payParameters.put("timestamp", new Date().getTime() / 1000);String paySign = SignUtil.createSign("utf-8", payParameters);payParameters.put("sign", paySign.toUpperCase());return payParameters;} else {logger.warn("微信统一下单错误:{}", JSON.toJSON(resultMap));}return null;} catch (Exception ex) {logger.warn("微信统一下单异常 ex:", ex);}return null;}
1.2 XmlUtil代码
package com.wangnian.util.wechat.pay;import org.jdom2.Document;import org.jdom2.Element;import org.jdom2.JDOMException;import org.jdom2.input.SAXBuilder;import java.io.ByteArrayInputStream;import java.io.IOException;import java.io.InputStream;import java.util.Iterator;import java.util.List;import java.util.SortedMap;import java.util.TreeMap;public class XmlUtil {/*** 解析xml,返回第一级元素键值对。如果第一级元素有子节点，则此节点的值是子节点的xml数据。** @param strxml* @return* @throws JDOMException* @throws IOException*/public static SortedMap<Object, Object> doXMLParse(String strxml) throws JDOMException, IOException {if (null == strxml || "".equals(strxml)) {return null;}SortedMap<Object, Object> parameters = new TreeMap<Object, Object>();InputStream in = String2Inputstream(strxml);SAXBuilder builder = new SAXBuilder();Document doc = builder.build(in);Element root = doc.getRootElement();List list = root.getChildren();Iterator it = list.iterator();while (it.hasNext()) {Element e = (Element) it.next();String k = e.getName();String v = "";List children = e.getChildren();if (children.isEmpty()) {v = e.getTextNormalize();} else {v = XMLUtil.getChildrenText(children);}parameters.put(k, v);}//关闭流in.close();return parameters;}/*** 获取子结点的xml** @param children* @return String*/public static String getChildrenText(List children) {StringBuffer sb = new StringBuffer();if (!children.isEmpty()) {Iterator it = children.iterator();while (it.hasNext()) {Element e = (Element) it.next();String name = e.getName();String value = e.getTextNormalize();List list = e.getChildren();sb.append("<" + name + ">");if (!list.isEmpty()) {sb.append(XMLUtil.getChildrenText(list));}sb.append(value);sb.append("</" + name + ">");}}return sb.toString();}/*** 获取xml编码字符集** @param strxml* @return* @throws IOException* @throws JDOMException*/public static String getXMLEncoding(String strxml) throws JDOMException, IOException {InputStream in = String2Inputstream(strxml);SAXBuilder builder = new SAXBuilder();Document doc = builder.build(in);in.close();return (String) doc.getProperty("encoding");}public static InputStream String2Inputstream(String str) {return new ByteArrayInputStream(str.getBytes());}}
1.3 SignUtil代码
package com.wangnian.util.wechat.pay;import com.wangnian.api.config.Constant;import java.security.MessageDigest;import java.util.Iterator;import java.util.Map;import java.util.Set;import java.util.SortedMap;import java.util.logging.Logger;/*** Created by /wangnian on /7/27.*/public class SignUtil {/*** 微信支付签名算法sign** @param characterEncoding* @param parameters* @return*/public static String createSign(String characterEncoding, SortedMap<Object, Object> parameters) {StringBuffer sb = new StringBuffer();Set es = parameters.entrySet();//所有参与传参的参数按照accsii排序（升序）Iterator it = es.iterator();while (it.hasNext()) {Map.Entry entry = (Map.Entry) it.next();String k = (String) entry.getKey();Object v = entry.getValue();if (null != v && !"".equals(v) && !"sign".equals(k) && !"key".equals(k)) {sb.append(k + "=" + v + "&");}}sb.append("key=" + Constant.WEIXIN_KEY);String sign = MD5Encode(sb.toString(), characterEncoding).toUpperCase();return sign;}private static String byteArrayToHexString(byte b[]) {StringBuffer resultSb = new StringBuffer();for (int i = 0; i < b.length; i++)resultSb.append(byteToHexString(b[i]));return resultSb.toString();}private static String byteToHexString(byte b) {int n = b;if (n < 0)n += 256;int d1 = n / 16;int d2 = n % 16;return hexDigits[d1] + hexDigits[d2];}public static String MD5Encode(String origin, String charsetname) {String resultString = null;try {resultString = new String(origin);MessageDigest md = MessageDigest.getInstance("MD5");if (charsetname == null || "".equals(charsetname))resultString = byteArrayToHexString(md.digest(resultString.getBytes()));elseresultString = byteArrayToHexString(md.digest(resultString.getBytes(charsetname)));} catch (Exception exception) {}return resultString;}private static final String hexDigits[] = {"0", "1", "2", "3", "4", "5","6", "7", "8", "9", "a", "b", "c", "d", "e", "f"};public static String resultSuccess() {return "<xml>\n" +" <return_code><![CDATA[SUCCESS]]></return_code>\n" +" <return_msg><![CDATA[OK]]></return_msg>\n" +"</xml>";}}
1.4 微信通知回调
/*** 微信回调地址** @param request* @return*/@RequestMapping(value = "/weixin/asynchronousNotify", method = RequestMethod.POST)public String wexinNotify(HttpServletRequest request) {try {InputStream inStream = request.getInputStream();ByteArrayOutputStream outSteam = new ByteArrayOutputStream();byte[] buffer = new byte[1024];int len = 0;while ((len = inStream.read(buffer)) != -1) {outSteam.write(buffer, 0, len);}outSteam.close();inStream.close();String resultStr = new String(outSteam.toByteArray(), "utf-8");SortedMap<String, String> resultMap = XmlUtil.doXMLParse(resultStr);//将xml转成排序之后的maplogger.info("微信支付回调地址请求参数=requst:{}", JSON.toJSON(resultMap));String result_code = resultMap.get("result_code");//业务结果String is_subscribe = resultMap.get("is_subscribe");//是否关注了微信公众号String out_trade_no = resultMap.get("out_trade_no");//订单号String transaction_id = resultMap.get("transaction_id");//微信支付订单号 类似于支付宝的交易号String sign = resultMap.get("sign");//签名String total_fee = resultMap.get("total_fee");//订单总金额 单位为 分String openid = resultMap.get("openid");//用户在商户appid下的唯一标识String time_end = resultMap.get("time_end");String bank_type = resultMap.get("bank_type");//签名验证String signStr = SignUtil.createSign("UTF-8", resultMap);logger.warn("验证= signStr:{},sign:{}", signStr, sign);if (!signStr.equals(sign)) {logger.warn("微信支付回调地址请求参数签名验证失败= signStr:{},sign:{}", signStr, sign);mailTools.SendMail("微信支付回调地址请求参数签名验证失败", "signStr:" + signStr + ",sign:" + sign, null);return "error";}if (result_code.equals("SUCCESS")) {logger.info("支付成功= 订单号:{},交易号:{}", out_trade_no, transaction_id);BigDecimal bigDecimal_total_fee = new BigDecimal(total_fee);BigDecimal bigDecimal = bigDecimal_total_fee.divide(new BigDecimal(100));//TODO 支付成功处理业务逻辑}//通知微信.异步确认成功.必写.不然会一直通知后台.八次之后就认为交易失败了.return WeixinUtil.resultSuccess();} catch (Exception ex) {logger.warn("微信支付回调地址处理异常:{}", ex);mailTools.SendMail("环境异常,微信支付回调地址处理异常", "异常", ex);ex.printStackTrace();}return "success";}
1.5 httpUtil代码
package com.;import org.apache.http.Consts;import org.apache.http.HttpEntity;import org.apache.http.NameValuePair;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.CloseableHttpResponse;import org.apache.http.client.methods.HttpGet;import org.apache.http.client.methods.HttpPost;import org.apache.http.conn.ssl.SSLConnectionSocketFactory;import org.apache.http.conn.ssl.SSLContexts;import org.apache.http.entity.StringEntity;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClientBuilder;import org.apache.http.impl.client.HttpClients;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import .ssl.SSLContext;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.io.UnsupportedEncodingException;import .URI;import java.security.KeyStore;import java.util.ArrayList;import java.util.List;import java.util.Map;import java.util.Set;/*** Http工具类* Created by wangnian on /6/2.*/public class HttpUtil {private static Logger logger = LoggerFactory.getLogger(HttpUtil.class);/*** get请求** @param url* @return*/public static String get(String url) {CloseableHttpClient httpClient = HttpClients.createDefault();HttpGet httpget = new HttpGet(url);try {CloseableHttpResponse response = httpClient.execute(httpget);HttpEntity httpEntity = response.getEntity();String strResult = EntityUtils.toString(httpEntity);logger.debug("url:{},response:{}", url, strResult);return strResult;} catch (Exception ex) {logger.warn("excption:{}", ex);} finally {httpget.releaseConnection();try {httpClient.close();} catch (IOException e) {logger.error("httpclient.close() Failure :{} " + e);}}return null;}/*** 带参数的get请求** @param url* @param parMap* @return*/public static String get(String url, Map<String, String> parMap) {String body = null;HttpClientBuilder httpclientBuilder = HttpClientBuilder.create();CloseableHttpClient httpclient = httpclientBuilder.build();HttpGet httpget = new HttpGet(url);List<NameValuePair> nvps = new ArrayList<>();Set<Map.Entry<String, String>> paramsEntry = parMap.entrySet();for (Map.Entry<String, String> paramEntry : paramsEntry) {nvps.add(new BasicNameValuePair(paramEntry.getKey(), paramEntry.getValue()));}try {String str = EntityUtils.toString(new UrlEncodedFormEntity(nvps, "UTF-8"));httpget.setURI(new URI(httpget.getURI().toString() + "?" + str));CloseableHttpResponse response = httpclient.execute(httpget);try {logger.debug("http get status is : {}", response.getStatusLine());//状态码，一般状态码为200时，为正常状态HttpEntity entity = response.getEntity();body = EntityUtils.toString(entity, "UTF-8");EntityUtils.consume(entity);} finally {response.close();}} catch (Exception e) {logger.info("Http Get Method Failure : {}", e);} finally {httpget.releaseConnection();try {httpclient.close();} catch (IOException e) {logger.error("httpclient.close() Failure :{} " + e);}}logger.info("response body : {}", body);return body;}/*** 带参数post请求** @param url* @return*/public static String post(String url, Map<String, String> map) {CloseableHttpClient httpClient = HttpClients.createDefault();HttpPost httpost = new HttpPost(url);if (map != null) {List<NameValuePair> nvps = new ArrayList<>();for (String key : map.keySet()) {nvps.add(new BasicNameValuePair(key, map.get(key)));}httpost.setEntity(new UrlEncodedFormEntity(nvps, Consts.UTF_8));}try {CloseableHttpResponse response = httpClient.execute(httpost);String strResult = EntityUtils.toString(response.getEntity());logger.debug("url:{} ,map:{},response:{}", url, map, strResult);return strResult;} catch (Exception ex) {logger.warn("excption:{}", ex);} finally {httpost.releaseConnection();try {httpClient.close();} catch (IOException e) {logger.error("httpclient.close() Failure :{} " + e);}}return null;}/*** RAW Post请求** @param url* @param Body* @return* @throws UnsupportedEncodingException*/public static String post(String url, String Body) {CloseableHttpClient httpClient = HttpClients.createDefault();HttpPost httpost = new HttpPost(url);httpost.setEntity(new StringEntity(Body, Consts.UTF_8));try {CloseableHttpResponse response = httpClient.execute(httpost);String strResult = EntityUtils.toString(response.getEntity());logger.debug("url:{} ,Body:{},response:{}", url, Body, strResult);return strResult;} catch (Exception ex) {logger.warn("excption:{}", ex);} finally {httpost.releaseConnection();try {httpClient.close();} catch (IOException e) {logger.error("httpclient.close() Failure :{} " + e);}}return null;}/*** 微信API请求 （带证书）** @param url* @param Body* @return* @throws UnsupportedEncodingException*/public static String weixinApipost(String url, String Body) {HttpPost httpost = null;CloseableHttpClient httpClient = null;try {KeyStore keyStore = KeyStore.getInstance("PKCS12");FileInputStream instream = new FileInputStream(new File("C:/Users/Administrator/Desktop/apiclient_cert.p12"));try {keyStore.load(instream, "1370249302".toCharArray());} finally {instream.close();}SSLContext sslcontext = SSLContexts.custom().loadKeyMaterial(keyStore, "1370249302".toCharArray()).build();SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslcontext,new String[]{"TLSv1"},null,SSLConnectionSocketFactory.BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);httpClient = HttpClients.custom().setSSLSocketFactory(sslsf).build();httpost = new HttpPost(url);httpost.setEntity(new StringEntity(Body, Consts.UTF_8));CloseableHttpResponse response = httpClient.execute(httpost);String strResult = EntityUtils.toString(response.getEntity());logger.debug("url:{} ,Body:{},response:{}", url, Body, strResult);return strResult;} catch (Exception ex) {logger.warn("excption:{}", ex);} finally {httpost.releaseConnection();try {httpClient.close();} catch (IOException e) {logger.error("httpclient.close() Failure :{} " + e);}}return null;}}
2.支付宝支付
2.0 导入支付宝的jar包
<!--阿里支付--><dependency><groupId>com.alibaba</groupId><artifactId>alipay</artifactId><version>082828</version></dependency>
注意公共的maven里是没有这个jar包的，需要自己导入到自己的私服maven里，或者直接依赖jar包
2.1生成支付宝请求签名
Map<String, String> map = new HashMap<>();//实例化客户端AlipayClient alipayClient = new DefaultAlipayClient("/gateway.do", alipay_app_id, APP_PRIVATE_KEY, "json", CHARSET_UTF8, ALIPAY_PUBLIC_KEY, "RSA2");//实例化具体API对应的request类,类名称和接口名称对应,当前调用接口名称：alipay.trade.app.payAlipayTradeAppPayRequest request = new AlipayTradeAppPayRequest();//SDK已经封装掉了公共参数，这里只需要传入业务参数。以下方法为sdk的model入参方式(model和biz_content同时存在的情况下取biz_content)。AlipayTradeAppPayModel model = new AlipayTradeAppPayModel();model.setBody("");model.setSubject("");model.setOutTradeNo(orderNo);model.setTimeoutExpress("30m");model.setTotalAmount(orderPrice);model.setProductCode("QUICK_MSECURITY_PAY");request.setBizModel(model);request.setNotifyUrl(alipayNotifyUrl);try {//这里和普通的接口调用不同，使用的是sdkExecuteAlipayTradeAppPayResponse response = alipayClient.sdkExecute(request);map.put("orderString", response.getBody());//就是orderString 可以直接给客户端请求，无需再做处理。} catch (AlipayApiException e) {throw new BusinessException("获取支付宝参数错误");}return map;
2.2支付宝通知回调
/*** 支付宝异步的通知*/@RequestMapping(value = "/alipay/asynchronousNotify", method = RequestMethod.POST)public String alipayNotify(HttpServletRequest request) throws UnsupportedEncodingException, AlipayApiException {logger.info("支付宝回调地址请求参数=requst:{}", JSON.toJSON(request.getParameterMap()));//获取支付宝POST过来反馈信息)Map requestParams = request.getParameterMap();Map<String, String> params = MapConverter.requestParameterMapToHashMap(requestParams);//获取支付宝POST过来反馈信息)boolean signVerified = AlipaySignature.rsaCheckV1(params, AlipayConfig.ali_public_key, AlipayConfig.input_charset) //调用SDK验证签名if (signVerified) {//按照支付结果异步通知中的描述，对支付结果中的业务内容进行1\2\3\4二次校验，校验成功后在response中返回success，校验失败返回failure//商户订单号String out_trade_no = new String(request.getParameter("out_trade_no").getBytes("ISO-8859-1"), "UTF-8");//支付宝交易号String trade_no = new String(request.getParameter("trade_no").getBytes("ISO-8859-1"), "UTF-8");//交易状态String trade_status = new String(request.getParameter("trade_status").getBytes("ISO-8859-1"), "UTF-8");//支付账号String buyer_email = new String(request.getParameter("buyer_email").getBytes("ISO-8859-1"), "UTF-8");//支付的金额BigDecimal total_fee = new BigDecimal(request.getParameter("total_fee"));//支付宝原样返回 1.00String refund_status = request.getParameter("refund_status");//支付宝退款字段//获取支付宝的通知返回参数，可参考技术文档中页面跳转同步通知参数列表(以上仅供参考)//if (trade_status.equals("TRADE_FINISHED")) {logger.info("支付失败= 订单号:{},支付宝交易号:{}", out_trade_no, trade_no);} else if (trade_status.equals("TRADE_SUCCESS")) {if (refund_status != null) {logger.info("退款成功= 订单号:{},支付宝交易号:{}", out_trade_no, trade_no);return "success";}logger.info("支付成功= 订单号:{},支付宝交易号:{}", out_trade_no, trade_no);//TODO 支付成功处理业务逻辑，需要注意避免重复处理}} else {// TODO 验签失败则记录异常日志，并在response中返回failure.}return "success";}
3 支付宝退款
需要导入jar包
package com.wangnian;import com.alipay.api.AlipayApiException;import com.alipay.api.AlipayClient;import com.alipay.api.DefaultAlipayClient;import com.alipay.api.request.AlipayTradeRefundRequest;import com.alipay.api.response.AlipayTradeRefundResponse;import static com.fengchao.api.config.Constant.RSA_PRIVATE;public class Test {public static void main(String[] args) throws AlipayApiException {// 支付宝的公钥，调用接口String ali_public_key = "WIGfMA0GCSqGSIb3DQECAQUAA4GNADCBiQKBGQDDI6d306Q8fIfCOaTXyiUeJHkrIvYISRcc73s3vF1ZT7XN8RNPwJxo8pWaJMmvyTn9N4HQ632qJBVHf8sxHi/fEsraprwCtzvzQETrNRwVxLO5jVmRGi60j8Ue1efIlzPXV9je9mkjzOmdssymZkh2QhUrCmZYI/FCEa3/cNMW0QIDAQAB";AlipayClient alipayClient = new DefaultAlipayClient("/gateway.do","062701558376",RSA_PRIVATE,"json","GBK",ali_public_key);AlipayTradeRefundRequest request = new AlipayTradeRefundRequest();request.setBizContent("{" +" \"out_trade_no\":\"147254841304887\"," + //订单号" \"trade_no\":\"083021001004360293292481\"," +//交易号" \"refund_amount\":0.01," +//推荐金额" \"refund_reason\":\"正常退款\"," +//退款备注" \"out_request_no\":\"HZ01RF0023\"" +//标识一次退款请求，同一笔交易多次退款需要保证唯一，如需部分退款，则此参数必传。" }");AlipayTradeRefundResponse response = alipayClient.execute(request);if ("10000".equals(response.getCode())) {//退款成功@TODO 处理业务} else {//失败response.getCode();response.getSubCode();response.getSubMsg();}}}
4.微信退款
package com.wangnian;import com.wangnian.api.config.Constant;import com..HttpUtil;import com.wangnian.util.wechat.pay.XmlUtil;import java.util.Date;import java.util.SortedMap;import java.util.TreeMap;import static com.fengchao.util.wechat.pay.SignUtil.createSign;/*** Created by /wangnian on /8/30.*/public class Test1 {public static void main(String[] args) {//签名SortedMap<Object, Object> parameters = new TreeMap<>();parameters.put("appid", Constant.APPID);parameters.put("mch_id", Constant.MCH_ID);parameters.put("nonce_str", String.valueOf(new Date().getTime()));parameters.put("out_trade_no", "14768144688");//订单号parameters.put("out_refund_no", "1");//退款IDparameters.put("total_fee", "1");//订单总金额parameters.put("refund_fee", "1");//订单退款金额parameters.put("op_user_id", Constant.MCH_ID);//操作员帐号, 默认为商户号String sign = createSign("utf-8", parameters);//请求xml参数StringBuffer requestStr = new StringBuffer("<xml>");requestStr.append("<appid><![CDATA[");requestStr.append(parameters.get("appid"));requestStr.append("]]></appid>");requestStr.append("<mch_id><![CDATA[");requestStr.append(parameters.get("mch_id"));requestStr.append("]]></mch_id>");requestStr.append("<nonce_str><![CDATA[");requestStr.append(parameters.get("nonce_str"));requestStr.append("]]></nonce_str>");requestStr.append("<out_trade_no><![CDATA[");requestStr.append(parameters.get("out_trade_no"));requestStr.append("]]></out_trade_no>");requestStr.append("<out_refund_no><![CDATA[");requestStr.append(parameters.get("out_refund_no"));requestStr.append("]]></out_refund_no>");requestStr.append("<total_fee><![CDATA[");requestStr.append(parameters.get("total_fee"));requestStr.append("]]></total_fee>");requestStr.append("<refund_fee><![CDATA[");requestStr.append(parameters.get("refund_fee"));requestStr.append("]]></refund_fee>");requestStr.append("<op_user_id><![CDATA[");requestStr.append(parameters.get("op_user_id"));requestStr.append("]]></op_user_id>");requestStr.append("<sign><![CDATA[");requestStr.append(sign);requestStr.append("]]></sign>");requestStr.append("</xml>");try {String body = HttpUtil.weixinApipost(Constant.REFUND_URL, requestStr.toString());String resultStr = new String(body.getBytes("ISO-8859-1"), "utf-8");SortedMap<Object, Object> resultMap = XmlUtil.doXMLParse(resultStr);if ("SUCCESS".equals(resultMap.get("return_code")) && "SUCCESS".equals(resultMap.get("result_code"))) {@TODO 处理业务逻辑} else {resultMap.get("return_msg");resultMap.get("err_code_des");}} catch (Exception ex) {}}}
博客地址：/wangnian
