java实现微信退款功能
微信退款之前需要在常量中配置退款地址，退款的地址必须是可以直接访问的。（之前的申请商户平台及在开放平台申请账号不在描述）在调起之前需要下载商户平台上的证书将其放在项目src下。
我们提供的服务有：成都网站设计、网站建设、微信公众号开发、网站优化、网站认证、林芝ssl等。为1000多家企事业单位解决了网站和推广的问题。提供周到的售前咨询和贴心的售后服务，是有科学管理、有技术的林芝网站制作公司
微信退款回调url ：微信官方建议在提交退款申请后进行退款回调url配置，便于通知退款的结果。配置在微信商户平台-》交易中心-》退款配置栏进行退款结果回调通知配置。配置的url必须为可以直接访问的类似付款成功回调url。
配置成功后在回调的url中处理退款后的结果。微信给返回的参数如下：
对于加密信息req_info的解密步骤如下。
解密过程中需要先到oracle官网下载对应java版本的sercity包，然后将下载后的包中两个jar复制到jdk/jre/lib/security/包下并覆盖原jar.另外需要在项目中引入一个bcprov-jdk15on-158.jar
退款部分代码：
// 构造向微信发送参数的实体类
private Unifiedorder unifiedorder = new Unifiedorder();
// 微信的参数
private WeixinConfigUtils config = new WeixinConfigUtils();
public static final String ALGORITHM = "AES/ECB/PKCS7Padding";
private RefundOrder refundOrder = new RefundOrder();
@Resource
private AESDecodeUtil aesDecodeUtil;
@Action("weixinRefund")
public String weixinRefund() {
try {
String out_trade_no = getRequest().getParameter("out_trade_no");
String refund_fee = getRequest().getParameter("refund_fee");
aLiPay = aLiPayService.searchALiPayByOutTradeNo(out_trade_no);
if (aLiPay != null) {
// 参数组
String appid = aLiPay.getApp_id();
String mch_id = config.mch_id;
String nonce_str = RandCharsUtils.getRandomString(16);
String out_refund_no = UuIdUtils.getUUID();
Integer total_fee = aLiPay.getTotalFee();
// 构造签名
parameters.put("appid", appid);
parameters.put("mch_id", mch_id);
parameters.put("nonce_str", nonce_str);
parameters.put("out_trade_no", out_trade_no);
parameters.put("out_refund_no", out_refund_no);
parameters.put("total_fee", total_fee);
parameters.put("refund_fee", refund_fee);
parameters.put("op_user_id", mch_id);
String sign = WXSignUtils.createSign("UTF-8", parameters);
// 向微信发送xml消息
// Unifiedorder unifiedorder = new Unifiedorder();
unifiedorder.setAppid(appid);
unifiedorder.setMch_id(mch_id);
unifiedorder.setSign(sign);
unifiedorder.setNonce_str(nonce_str);
unifiedorder.setOut_trade_no(out_trade_no);
unifiedorder.setOut_refund_no(out_refund_no);
unifiedorder.setTotal_fee(total_fee);
unifiedorder.setRefund_fee(Integer.valueOf(refund_fee));
unifiedorder.setOp_user_id(mch_id);
String xmlInfo = HttpXmlUtils.refundXml(unifiedorder);
unifiedorder = null;
try {
CloseableHttpResponse response = HttpUtil.Post(
weixinConstant.REFUND_URL, xmlInfo, true);
// 输出退款后的信息
String refundXml = EntityUtils.toString(response.getEntity(), "utf-8");
Map refundOrderMap = HttpXmlUtils.parseRefundXml(refundXml);
if (refundOrderMap.size()>0) {
if (refundOrderMap.get("result_code").equals("SUCCESS") && refundOrderMap.get("return_code").equals("SUCCESS")) {
refundOrder.setAppid(refundOrderMap.get("appid"));
refundOrder.setMch_id(refundOrderMap.get("mch_id"));
refundOrder.setTransaction_id(refundOrderMap.get("transaction_id"));
refundOrder.setOut_trade_no(refundOrderMap.get("out_trade_no"));
refundOrder.setOut_refund_no(refundOrderMap.get("out_refund_no"));
refundOrder.setRefund_id(refundOrderMap.get("refund_id"));
refundOrder.setRefund_fee(Integer.valueOf(refundOrderMap.get("refund_fee")));
refundOrder.setTatol_fee(Integer.valueOf(refundOrderMap.get("total_fee")));
refundOrder.setRefund_status(WeixinRefundStatusConstant.APPLY_SUCCESS);
refundOrderService.saveOrder(refundOrder);
msg.put("stateCode", MsgCode.SUCCESS);
msg.put("message ", "退款申请成功");
refundOrderService.saveOrder(refundOrder);
}else {
msg.put("stateCode", MsgCode.ERROR);
msg.put("message ", "退款申请失败");
}
}else {
msg.put("stateCode", MsgCode.ERROR);
msg.put("message ", "退款申请失败");
}
try {
// 关闭流
EntityUtils.consume(response.getEntity());
} finally {
response.close();
}
} catch (Exception e) {
msg.put("stateCode", MsgCode.SYS_ERROR);
msg.put("message ", "服务器异常");
}
} else {
msg.put("stateCode", MsgCode.ERROR);
msg.put("message ", "退款申请失败");
}
Struts2Utils.renderJson(JSONObject.toJSONString(msg,
SerializerFeature.DisableCircularReferenceDetect));
return NONE;
} catch (Exception e) {
log.error(e.getMessage());
e.printStackTrace();
return "500";
}
}
/**
* 微信退款回调url
* */
@Action("refundNotifyUrl")
public String refundNotifyUrl() throws IOException {
try {
Map resultMap = JdomParseXmlUtils.getWeixinResult(
Struts2Utils.getRequest(), Struts2Utils.getResponse());
if (resultMap.get("return_code").equals("SUCCESS")) {
String reqInfo = resultMap.get("req_info");
String result = aesDecodeUtil.decode(reqInfo);
Map resultMaps = HttpXmlUtils.parseRefundNotifyXml(result);
refundOrder = refundOrderService.getOrderByOutRefundNo(resultMaps.get("out_refund_no"));
if (resultMaps.get("refund_status").equals("SUCCESS")){
refundOrder.setRefund_status(WeixinRefundStatusConstant.REFUND_SUCCESS);
}else if (resultMaps.get("refund_status").equals("CHANGE")) {
refundOrder.setRefund_status(WeixinRefundStatusConstant.REFUND_FAIL);
}else if (resultMaps.get("refund_status").equals("REFUNDCLOSE")) {
refundOrder.setRefund_status(WeixinRefundStatusConstant.REFUND_CLOSED);
}
refundOrder.setRefund_rew_account(resultMaps.get("refund_recv_account"));
System.out.println(resultMaps.get("refund_recv_account"));
refundOrderService.updateOrder(refundOrder);
refundOrder = null;
unifiedorder.setReturn_code("SUCCESS");
}
unifiedorder.setReturn_code("SUCCESS");
String refundXml = HttpXmlUtils.refundXml(unifiedorder);
Struts2Utils.getResponse().getWriter().write(refundXml);
Struts2Utils.getResponse().getWriter().flush();
} catch (Exception e) {
log.error(e.getMessage());
e.printStackTrace();
return "500";
}
return null;
}
package com.wellness.platfront.common.weixinutil;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Random;
生成随机串
/**
* nonce_str随即字符串
* @author
* @date 2017/08/10
*/
public class RandCharsUtils {
private static SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");
public static String getRandomString(int length) { //length表示生成字符串的长度
String base = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz";
Random random = new Random();
StringBuffer sb = new StringBuffer();
int number = 0;
for (int i = 0; i < length; i++) {
number = random.nextInt(base.length());
sb.append(base.charAt(number));
}
return sb.toString();
}
/*
* 订单开始交易的时间
*/
public static String timeStart(){
return df.format(new Date());
}
/*
* 订单开始交易的时间
*/
public static String timeExpire(){
Calendar now=Calendar.getInstance();
now.add(Calendar.MINUTE,30);
return df.format(now.getTimeInMillis());
}
}
生成签名的类
package com.wellness.platfront.common.weixinutil;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.SortedMap;
/**
* 微信支付签名
* @author
* @date 2017/08/10
*/
public class WXSignUtils {
/**
* 微信支付签名算法sign
* @param characterEncoding
* @param parameters
* @return
*/
@SuppressWarnings("rawtypes")
public static String createSign(String characterEncoding,SortedMap 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=" + weixinConstant.KEY);
String sign = MD5Util.MD5Encode(sb.toString(), characterEncoding).toUpperCase();
return sign;
}
} 向微信发送消息的类
package com.wellness.platfront.common.weixinutil;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.StringReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.annotation.Resource;
import javax.net.ssl.HttpsURLConnection;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
import org.xml.sax.InputSource;
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.xml.DomDriver;
import com.thoughtworks.xstream.io.xml.XmlFriendlyNameCoder;
import com.wellness.platfront.business.wechat.service.RefundOrderService;
import com.wellness.platfront.entity.weixin.Transfers;
import com.wellness.platfront.entity.weixin.Unifiedorder;
/**
* post提交xml格式的参数
* @author
* @date 2017/08/10
*/
public class HttpXmlUtils {
@Resource
private RefundOrderService refundOrderService;
public static XStream xStream = new XStream(new DomDriver("UTF-8",
new XmlFriendlyNameCoder("-_", "_")));
/**
* 开始post提交参数到接口
* 并接受返回
* @param url
* @param xml
* @param method
* @param contentType
* @return
*/
public static String xmlHttpProxy(String url,String xml,String method,String contentType){
InputStream is = null;
OutputStreamWriter os = null;
try {
URL _url = new URL(url);
HttpURLConnection conn = (HttpURLConnection) _url.openConnection();
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setRequestProperty("Content-type", "text/xml");
conn.setRequestProperty("Pragma:", "no-cache");
conn.setRequestProperty("Cache-Control", "no-cache");
conn.setRequestMethod("POST");
os = new OutputStreamWriter(conn.getOutputStream());
os.write(new String(xml.getBytes(contentType)));
os.flush();
//返回值
is = conn.getInputStream();
return getContent(is, "utf-8");
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally{
try {
if(os!=null){os.close();}
if(is!=null){is.close();}
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
/**
* 解析返回的值
* @param is
* @param charset
* @return
*/
public static String getContent(InputStream is, String charset) {
String pageString = null;
InputStreamReader isr = null;
BufferedReader br = null;
StringBuffer sb = null;
try {
isr = new InputStreamReader(is, charset);
br = new BufferedReader(isr);
sb = new StringBuffer();
String line = null;
while ((line = br.readLine()) != null) {
sb.append(line + "\n");
}
pageString = sb.toString();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (is != null){
is.close();
}
if(isr!=null){
isr.close();
}
if(br!=null){
br.close();
}
} catch (IOException e) {
e.printStackTrace();
}
sb = null;
}
return pageString;
}
/**
* 解析申请退款之后微信返回的值并进行存库操作
* @throws IOException
* @throws JDOMException
*/
public static Map parseRefundXml(String refundXml) throws JDOMException, IOException{
ParseXMLUtils.jdomParseXml(refundXml);
StringReader read = new StringReader(refundXml);
// 创建新的输入源SAX 解析器将使用 InputSource 对象来确定如何读取 XML 输入
InputSource source = new InputSource(read);
// 创建一个新的SAXBuilder
SAXBuilder sb = new SAXBuilder();
// 通过输入源构造一个Document
org.jdom.Document doc;
doc = (org.jdom.Document) sb.build(source);
org.jdom.Element root = doc.getRootElement();// 指向根节点
List list = root.getChildren();
Map refundOrderMap = new HashMap();
if(list!=null&&list.size()>0){
for (org.jdom.Element element : list) {
refundOrderMap.put(element.getName(), element.getText());
}
return refundOrderMap;
}
return null;
}
/**
* 解析申请退款之后微信退款回调返回的字符串中内容
* @throws IOException
* @throws JDOMException
*/
public static Map parseRefundNotifyXml(String refundXml) throws JDOMException, IOException{
ParseXMLUtils.jdomParseXml(refundXml);
StringReader read = new StringReader(refundXml);
// 创建新的输入源SAX 解析器将使用 InputSource 对象来确定如何读取 XML 输入
InputSource source = new InputSource(read);
// 创建一个新的SAXBuilder
SAXBuilder sb = new SAXBuilder();
// 通过输入源构造一个Document
org.jdom.Document doc;
doc = (org.jdom.Document) sb.build(source);
org.jdom.Element root = doc.getRootElement();// 指向根节点
List list = root.getChildren();
Map resultMap = new HashMap<>();
if(list!=null&&list.size()>0){
for (org.jdom.Element element : list){
resultMap.put(element.getName(), element.getText());
}
return resultMap;
}
return null;
}
/**
* h6支付时 解析返回的值并返回prepareid
* @throws IOException
* @throws JDOMException
*/
public static Map getUrl(Unifiedorder unifiedorder) throws JDOMException, IOException{
String xmlInfo = HttpXmlUtils.xmlH5Info(unifiedorder);
String wxUrl = weixinConstant.URL;
String method = "POST";
String weixinPost = HttpXmlUtils.httpsRequest(wxUrl, method, xmlInfo).toString();
ParseXMLUtils.jdomParseXml(weixinPost);
StringReader read = new StringReader(weixinPost);
// 创建新的输入源SAX 解析器将使用 InputSource 对象来确定如何读取 XML 输入
InputSource source = new InputSource(read);
// 创建一个新的SAXBuilder
SAXBuilder sb = new SAXBuilder();
// 通过输入源构造一个Document
org.jdom.Document doc;
doc = (org.jdom.Document) sb.build(source);
org.jdom.Element root = doc.getRootElement();// 指向根节点
List list = root.getChildren();
String prepayId =null;
Map msg = new HashMap();
if(list!=null&&list.size()>0){
for (org.jdom.Element element : list) {
msg.put(element.getName(), element.getText());
}
}
return msg;
}
/**
* 解析返回的值并返回prepareid
* @throws IOException
* @throws JDOMException
*/
public static String getPrepareId(Unifiedorder unifiedorder) throws JDOMException, IOException{
String xmlInfo = HttpXmlUtils.xmlInfo(unifiedorder);
String wxUrl = weixinConstant.URL;
String method = "POST";
String weixinPost = HttpXmlUtils.httpsRequest(wxUrl, method, xmlInfo).toString();
ParseXMLUtils.jdomParseXml(weixinPost);
StringReader read = new StringReader(weixinPost);
// 创建新的输入源SAX 解析器将使用 InputSource 对象来确定如何读取 XML 输入
InputSource source = new InputSource(read);
// 创建一个新的SAXBuilder
SAXBuilder sb = new SAXBuilder();
// 通过输入源构造一个Document
org.jdom.Document doc;
doc = (org.jdom.Document) sb.build(source);
org.jdom.Element root = doc.getRootElement();// 指向根节点
List list = root.getChildren();
String prepayId =null;
if(list!=null&&list.size()>0){
for (org.jdom.Element element : list) {
if ( "prepay_id".equals(element.getName())) {
prepayId= element.getText();
break;
}
}
}
return prepayId;
}
/**
* 向微信发送企业付款请求并解析返回结果
* @throws IOException
* @throws JDOMException
*/
public static Map getTransfersMap(Transfers transfers) throws JDOMException, IOException{
String xmlInfo = HttpXmlUtils.xmlTransfer(transfers);
String wxUrl = weixinConstant.WITHDRAW_URL;
String method = "POST";
String weixinPost = HttpXmlUtils.httpsRequest(wxUrl, method, xmlInfo).toString();
ParseXMLUtils.jdomParseXml(weixinPost);
StringReader read = new StringReader(weixinPost);
// 创建新的输入源SAX 解析器将使用 InputSource 对象来确定如何读取 XML 输入
InputSource source = new InputSource(read);
// 创建一个新的SAXBuilder
SAXBuilder sb = new SAXBuilder();
// 通过输入源构造一个Document
org.jdom.Document doc;
doc = (org.jdom.Document) sb.build(source);
org.jdom.Element root = doc.getRootElement();// 指向根节点
List list = root.getChildren();
Map transferMap=new HashMap<>();
if(list!=null&&list.size()>0){
for (org.jdom.Element element : list) {
transferMap.put(element.getName(), element.getText());
}
}
return transferMap;
}
/**
* 构造退款xml参数
* @param xml
* @return
*/
public static String refundXml(Unifiedorder unifiedorder){
xStream.autodetectAnnotations(true);
xStream.alias("xml", Unifiedorder.class);
return xStream.toXML(unifiedorder);
}
/**
* 构造企业付款xml参数
* @param xml
* @return
*/
public static String transferXml(Transfers transfers){
xStream.autodetectAnnotations(true);
xStream.alias("xml", Transfers.class);
return xStream.toXML(transfers);
}
/**
* 构造xml参数
* @param xml
* @return
*/
public static String xmlInfo(Unifiedorder unifiedorder){
if(unifiedorder!=null){
StringBuffer bf = new StringBuffer();
bf.append("");
bf.append(" ");
return bf.toString();
}
return "";
}
/**
* 构造xml参数
* @param xml
* @return
*/
public static String xmlH5Info(Unifiedorder unifiedorder){
if(unifiedorder!=null){
StringBuffer bf = new StringBuffer();
bf.append("");
bf.append(" ");
return bf.toString();
}
return "";
}
/**
* 构造退款xml参数
* @param xml
* @return
*/
public static String xmlTransfer(Transfers transfers){
if(transfers!=null){
StringBuffer bf = new StringBuffer();
bf.append("");
bf.append(" ");
return bf.toString();
}
return "";
}
/**
* post请求并得到返回结果
* @param requestUrl
* @param requestMethod
* @param output
* @return
*/
public static String httpsRequest(String requestUrl, String requestMethod, String output) {
try{
URL url = new URL(requestUrl);
HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setUseCaches(false);
connection.setRequestMethod(requestMethod);
if (null != output) {
OutputStream outputStream = connection.getOutputStream();
outputStream.write(output.getBytes("UTF-8"));
outputStream.close();
}
// 从输入流读取返回内容
InputStream inputStream = connection.getInputStream();
InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
String str = null;
StringBuffer buffer = new StringBuffer();
while ((str = bufferedReader.readLine()) != null) {
buffer.append(str);
}
bufferedReader.close();
inputStreamReader.close();
inputStream.close();
inputStream = null;
connection.disconnect();
return buffer.toString();
}catch(Exception ex){
ex.printStackTrace();
}
return "";
}
} 加载证书
package com.wellness.platfront.common.weixinutil;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClients;
public class HttpUtil {
/**
* 发送post请求
*
* @param url
* 请求地址
* @param outputEntity
* 发送内容
* @param isLoadCert
* 是否加载证书
*/
public static CloseableHttpResponse Post(String url, String outputEntity, boolean isLoadCert) throws Exception {
HttpPost httpPost = new HttpPost(url);
// 得指明使用UTF-8编码，否则到API服务器XML的中文不能被成功识别
httpPost.addHeader("Content-Type", "text/xml");
httpPost.setEntity(new StringEntity(outputEntity, "UTF-8"));
if (isLoadCert) {
// 加载含有证书的http请求
return HttpClients.custom().setSSLSocketFactory(CertUtil.initCert()).build().execute(httpPost);
} else {
return HttpClients.custom().build().execute(httpPost);
}
}
}加载证书的类
package com.wellness.platfront.common.weixinutil;
import java.io.File;
import java.io.FileInputStream;
import java.security.KeyStore;
import javax.net.ssl.SSLContext;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.ssl.SSLContexts;
/**
* 加载证书的类
* @author
* @since 2017/08/16
*/
@SuppressWarnings("deprecation")
public class CertUtil {
private static WeixinConfigUtils config = new WeixinConfigUtils();
/**
* 加载证书
*/
public static SSLConnectionSocketFactory initCert() throws Exception {
FileInputStream instream = null;
KeyStore keyStore = KeyStore.getInstance("PKCS12");
instream = new FileInputStream(new File(weixinConstant.PATH));
keyStore.load(instream, config.mch_id.toCharArray());
if (null != instream) {
instream.close();
}
SSLContext sslcontext = SSLContexts.custom().loadKeyMaterial(keyStore,config.mch_id.toCharArray()).build();
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslcontext, new String[]{"TLSv1"}, null, SSLConnectionSocketFactory.BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);
return sslsf;
}
}解密微信退款中返回相关信息的字符串
package com.wellness.platfront.common.weixinutil;
import java.security.Security;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.springframework.stereotype.Service;
import com.wellness.platfront.common.wechat.utils.MD5;
/**
* 解密微信退款中返回相关信息的字符串
* @author
* @since 2017/09/05
*/
@Service
public class AESDecodeUtil {
public static final String ALGORITHM = "AES/ECB/PKCS7Padding";
public String decode(String reqInfo) throws Exception{
try {
byte[] decodeBase64 = Base64.decodeBase64(reqInfo);
String md5Key = MD5.MD5Encode(weixinConstant.KEY);
Security.addProvider(new BouncyCastleProvider());
Cipher cipher = Cipher.getInstance(ALGORITHM);
SecretKey keySpec = new SecretKeySpec(md5Key.getBytes(), "AES"); //生成加密解密需要的Key
cipher.init(Cipher.DECRYPT_MODE, keySpec);
byte[] decoded = cipher.doFinal(decodeBase64);
String result = new String(decoded, "UTF-8");
return result;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
微信解析xml：带有CDATA格式的
package com.wellness.platfront.common.weixinutil;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.io.StringReader;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
import org.xml.sax.InputSource;
import com.wellness.platfront.entity.weixin.UnifiedorderResult;
import com.wellness.platfront.entity.weixin.WXPayResult;
/**
* 微信解析xml：带有CDATA格式的
* @author
* @date 2017/08/10
*/
public class JdomParseXmlUtils {
/**
* 1、统一下单获取微信返回
* 解析的时候自动去掉CDMA
* @param xml
*/
@SuppressWarnings("unchecked")
public static UnifiedorderResult getUnifiedorderResult(String xml){
UnifiedorderResult unifieorderResult = new UnifiedorderResult();
try {
StringReader read = new StringReader(xml);
// 创建新的输入源SAX 解析器将使用 InputSource 对象来确定如何读取 XML 输入
InputSource source = new InputSource(read);
// 创建一个新的SAXBuilder
SAXBuilder sb = new SAXBuilder();
// 通过输入源构造一个Document
Document doc;
doc = (Document) sb.build(source);
Element root = doc.getRootElement();// 指向根节点
List list = root.getChildren();
if(list!=null&&list.size()>0){
for (Element element : list) {
System.out.println("key是："+element.getName()+"，值是："+element.getText());
if("return_code".equals(element.getName())){
unifieorderResult.setReturn_code(element.getText());
}
if("return_msg".equals(element.getName())){
unifieorderResult.setReturn_msg(element.getText());
}
if("appid".equals(element.getName())){
unifieorderResult.setAppid(element.getText());
}
if("mch_id".equals(element.getName())){
unifieorderResult.setMch_id(element.getText());
}
if("nonce_str".equals(element.getName())){
unifieorderResult.setNonce_str(element.getText());
}
if("sign".equals(element.getName())){
unifieorderResult.setSign(element.getText());
}
if("result_code".equals(element.getName())){
unifieorderResult.setResult_code(element.getText());
}
if("prepay_id".equals(element.getName())){
unifieorderResult.setPrepay_id(element.getText());
}
if("trade_type".equals(element.getName())){
unifieorderResult.setTrade_type(element.getText());
}
}
}
} catch (JDOMException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}catch (Exception e) {
e.printStackTrace();
}
return unifieorderResult;
}
/**
* 获取微信回调的参数并将xml解析成map
* 解析的时候自动去掉CDMA
* @param xml
*/
@SuppressWarnings("unchecked")
public static Map getWeixinResult(HttpServletRequest request,HttpServletResponse response){
Map resultMap = new HashMap<>();
try {
PrintWriter writer = response.getWriter();
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 result = new String(outSteam.toByteArray(), "utf-8");
StringReader read = new StringReader(result);
InputSource source = new InputSource(read);
// 创建一个新的SAXBuilder
SAXBuilder sb = new SAXBuilder();
// 通过输入源构造一个Document
Document doc;
doc = (Document) sb.build(source);
Element root = doc.getRootElement();// 指向根节点
List list = root.getChildren();
if(list!=null&&list.size()>0){
for (Element element : list) {
resultMap.put(element.getName(), element.getText());
}
}
return resultMap;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
/**
* 2、微信回调后参数解析
* 解析的时候自动去掉CDMA
* @param xml
*/
@SuppressWarnings("unchecked")
public static WXPayResult getWXPayResult(String xml){
WXPayResult wXPayResult = new WXPayResult();
try {
StringReader read = new StringReader(xml);
// 创建新的输入源SAX 解析器将使用 InputSource 对象来确定如何读取 XML 输入
InputSource source = new InputSource(read);
// 创建一个新的SAXBuilder
SAXBuilder sb = new SAXBuilder();
// 通过输入源构造一个Document
Document doc;
doc = (Document) sb.build(source);
Element root = doc.getRootElement();// 指向根节点
List list = root.getChildren();
if(list!=null&&list.size()>0){
for (Element element : list) {
if("return_code".equals(element.getName())){
wXPayResult.setReturn_code(element.getText());
}
if("return_msg".equals(element.getName())){
wXPayResult.setReturn_msg(element.getText());
}
if("appid".equals(element.getName())){
wXPayResult.setAppid(element.getText());
}
if("mch_id".equals(element.getName())){
wXPayResult.setMch_id(element.getText());
}
if("nonce_str".equals(element.getName())){
wXPayResult.setNonce_str(element.getText());
}
if("sign".equals(element.getName())){
wXPayResult.setSign(element.getText());
}
if("result_code".equals(element.getName())){
wXPayResult.setResult_code(element.getText());
}
if("return_msg".equals(element.getName())){
wXPayResult.setReturn_msg(element.getText());
}
if("return_msg".equals(element.getName())){
wXPayResult.setReturn_msg(element.getText());
}
if("return_msg".equals(element.getName())){
wXPayResult.setReturn_msg(element.getText());
}
if("return_msg".equals(element.getName())){
wXPayResult.setReturn_msg(element.getText());
}
if("return_msg".equals(element.getName())){
wXPayResult.setReturn_msg(element.getText());
}
if("return_msg".equals(element.getName())){
wXPayResult.setReturn_msg(element.getText());
}
if("return_msg".equals(element.getName())){
wXPayResult.setReturn_msg(element.getText());
}
if("return_msg".equals(element.getName())){
wXPayResult.setReturn_msg(element.getText());
}
}
}
} catch (JDOMException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}catch (Exception e) {
e.printStackTrace();
}
return wXPayResult;
}
}
package com.wellness.platfront.common.weixinutil;
/**
* dom解析
* @author
* @date 2017/08/10
*/
import java.io.IOException;
import java.io.StringReader;
import java.util.Iterator;
import java.util.List;
import org.apache.commons.lang.StringUtils;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
import org.xml.sax.InputSource;
public class ParseXMLUtils {
/**
* 1、DOM解析
*/
@SuppressWarnings("rawtypes")
public static void beginXMLParse(String xml){
Document doc = null;
try {
doc = DocumentHelper.parseText(xml); // 将字符串转为XML
Element rootElt = doc.getRootElement(); // 获取根节点smsReport
System.out.println("根节点是："+rootElt.getName());
Iterator iters = rootElt.elementIterator("sendResp"); // 获取根节点下的子节点sms
while (iters.hasNext()) {
Element recordEle1 = (Element) iters.next();
Iterator iter = recordEle1.elementIterator("sms");
while (iter.hasNext()) {
Element recordEle = (Element) iter.next();
String phone = recordEle.elementTextTrim("phone"); // 拿到sms节点下的子节点stat值
String smsID = recordEle.elementTextTrim("smsID"); // 拿到sms节点下的子节点stat值
System.out.println(phone+":"+smsID);
}
}
} catch (DocumentException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 2、DOM4j解析XML（支持xpath）
* 解析的时候自动去掉CDMA
* @param xml
*/
public static void xpathParseXml(String xml){
try {
StringReader read = new StringReader(xml);
SAXReader saxReader = new SAXReader();
Document doc = saxReader.read(read);
String xpath ="/xml/appid";
System.out.print(doc.selectSingleNode(xpath).getText());
} catch (DocumentException e) {
e.printStackTrace();
}
}
/**
* 3、JDOM解析XML
* 解析的时候自动去掉CDMA
* @param xml
*/
@SuppressWarnings("unchecked")
public static void jdomParseXml(String xml){
try {
StringReader read = new StringReader(xml);
// 创建新的输入源SAX 解析器将使用 InputSource 对象来确定如何读取 XML 输入
InputSource source = new InputSource(read);
// 创建一个新的SAXBuilder
SAXBuilder sb = new SAXBuilder();
// 通过输入源构造一个Document
org.jdom.Document doc;
doc = (org.jdom.Document) sb.build(source);
org.jdom.Element root = doc.getRootElement();// 指向根节点
List list = root.getChildren();
if(list!=null&&list.size()>0){
for (org.jdom.Element element : list) {
/*try{
methodName = element.getName();
Method m = v.getClass().getMethod("set" + methodName, new Class[] { String.class });
if(parseInt(methodName)){
m.invoke(v, new Object[] { Integer.parseInt(element.getText()) });
}else{
m.invoke(v, new Object[] { element.getText() });
}
}catch(Exception ex){
ex.printStackTrace();
}*/
}
}
} catch (JDOMException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}catch (Exception e) {
e.printStackTrace();
}
}
public static boolean parseInt(String key){
if(!StringUtils.isEmpty(key)){
if(key.equals("total_fee")||key.equals("cash_fee")||key.equals("coupon_fee")||key.equals("coupon_count")||key.equals("coupon_fee_0")){
return true;
}
}
return false;
}
}
微信支付相关的常量
package com.wellness.platfront.common.weixinutil;
/**
* 微信支付相关的常量
* @author yangfuren
* @since 2017/08/16
*/
public class weixinConstant {
/**
* 微信支付API秘钥
*/
public static final String KEY = "eAO9gDBK7NjqkYEvRFB82CspUTINiWnD";
/**
* url
*/
public static final String URL = "https://api.mch.weixin.qq.com/pay/unifiedorder";
/**
* 退款url
*/
public static final String REFUND_URL = "https://api.mch.weixin.qq.com/secapi/pay/refund";
/**
* 证书地址
*/
public static final String PATH ="";
/**
* 付款url
*/
public static final String WITHDRAW_URL="https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers";
}微信退款状态常量
package com.wellness.platfront.common.weixinutil;
/**
* 微信退款状态常量
* @author
* @since 2017/09/04
*/
public class WeixinRefundStatusConstant {
//退款申请成功
public static final String APPLY_SUCCESS="退款申请成功";
//退款申请失败
public static final String APPLY_FAIL="退款申请失败";
//退款成功
public static final String REFUND_SUCCESS="退款成功";
//退款异常
public static final String REFUND_FAIL="退款异常";
//退款关闭
public static final String REFUND_CLOSED="退款关闭";
}
微信退款订单信息
package com.wellness.platfront.entity.weixin;
import java.io.Serializable;
import java.util.Date;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
/**
* 微信退款订单信息
* @author
*
*/
@Entity
@Table(name = "weixin_refund_order")
public class RefundOrder implements Serializable{
private static final long serialVersionUID = 1L;
//退款订单id
public Integer refundOrderId;
//微信公众账号
public String appid;
//微信商户号
public String mch_id;
//微信订单号
public String transaction_id;
//商户订单号
public String out_trade_no;
//商户退款单号
public String out_refund_no;
//微信退款单号
public String refund_id;
//退款金额
public Integer refund_fee;
//订单总价格
public Integer tatol_fee;
//退款发起时间
public Date create_time;
//退款状态 申请退款中 申请退款失败 退款成功 退款异常 退款关闭
public String refund_status;
//退款退还账户
public String refund_rew_account;
//退款完成时间
public Date end_time;
//订单退还方式
public String refundType;
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "refund_order_id", nullable = false)
public Integer getRefundOrderId() {
return refundOrderId;
}
public void setRefundOrderId(Integer refundOrderId) {
this.refundOrderId = refundOrderId;
}
@Column(name = "appid", nullable = false)
public String getAppid() {
return appid;
}
public void setAppid(String appid) {
this.appid = appid;
}
@Column(name = "mch_id", nullable = false)
public String getMch_id() {
return mch_id;
}
public void setMch_id(String mch_id) {
this.mch_id = mch_id;
}
@Column(name = "transaction_id", nullable = false)
public String getTransaction_id() {
return transaction_id;
}
public void setTransaction_id(String transaction_id) {
this.transaction_id = transaction_id;
}
@Column(name = "out_trade_no", nullable = false)
public String getOut_trade_no() {
return out_trade_no;
}
public void setOut_trade_no(String out_trade_no) {
this.out_trade_no = out_trade_no;
}
@Column(name = "out_refund_no", nullable = false)
public String getOut_refund_no() {
return out_refund_no;
}
public void setOut_refund_no(String out_refund_no) {
this.out_refund_no = out_refund_no;
}
@Column(name = "refund_id", nullable = false)
public String getRefund_id() {
return refund_id;
}
public void setRefund_id(String refund_id) {
this.refund_id = refund_id;
}
@Column(name = "refund_fee", nullable = false)
public Integer getRefund_fee() {
return refund_fee;
}
public void setRefund_fee(Integer refund_fee) {
this.refund_fee = refund_fee;
}
@Column(name = "tatol_fee", nullable = false)
public Integer getTatol_fee() {
return tatol_fee;
}
public void setTatol_fee(Integer tatol_fee) {
this.tatol_fee = tatol_fee;
}
@Column(name = "create_time", nullable = false)
public Date getCreate_time() {
return create_time;
}
public void setCreate_time(Date create_time) {
this.create_time = create_time;
}
@Column(name = "refund_status", nullable = false)
public String getRefund_status() {
return refund_status;
}
public void setRefund_status(String refund_status) {
this.refund_status = refund_status;
}
@Column(name = "refund_rew_account")
public String getRefund_rew_account() {
return refund_rew_account;
}
public void setRefund_rew_account(String refund_rew_account) {
this.refund_rew_account = refund_rew_account;
}
@Column(name = "end_time")
public Date getEnd_time() {
return end_time;
}
public void setEnd_time(Date end_time) {
this.end_time = end_time;
}
@Column(name = "refund_type")
public String getRefundType() {
return refundType;
}
public void setRefundType(String refundType) {
this.refundType = refundType;
}
}
这个实体类中参数和微信官方需要的参数一致
package com.wellness.platfront.entity.weixin;
import java.io.Serializable;
import com.wellness.platfront.entity.member.Member;
/**
* 统一下单提交为微信的参数
* @author
* @date 2017年08月11日
*/
public class Unifiedorder implements Serializable{
private static final long serialVersionUID = 1L;
//微信支付表id
private Integer weixinId;
//微信分配的公众账号ID（企业号corpid即为此appId）
private String appid;
//商户id
private String mch_id;
//终端设备号(门店号或收银设备ID)，注意：PC网页或公众号内支付请传"WEB"
private String device_info;
//随机字符串:数字+大写字母的组合，32位
private String nonce_str;
//签名
private String sign;
//商品或支付单简要描述
private String body;
//商品名称明细列表
private String detail;
//附加参数（例如：用于区别本商户不同的分店）
private String attach;
//商户系统内部的订单号
private String out_trade_no;
//货币类型:符合ISO 4217标准的三位字母代码，默认人民币：CNY
private String fee_type;
//总金额
private int total_fee;
//APP和网页支付提交[用户端ip]，Native支付填调用微信支付API的机器IP。
private String spbill_create_ip;
//订单生成时间，格式为yyyyMMddHHmmss，
private String time_start;
//订单失效时间，格式为yyyyMMddHHmmss，最短失效时间间隔必须大于5分钟[支付宝是30分钟，同样30分钟]
private String time_expire;
//商品标记，代金券或立减优惠功能的参数
private String goods_tag;
//接收微信支付异步通知回调地址
private String notify_url;
//交易类型:JSAPI，NATIVE，APP h6为 MWEB
private String trade_type;
//trade_type=NATIVE，此参数必传。此id为二维码中包含的商品ID，商户自行定义。
private String product_id;
//no_credit--指定不能使用信用卡支付
private String limit_pay;
//trade_type=JSAPI，此参数必传，用户在商户appid下的唯一标识
private String openid;
//商户内部自己的退款单号
private String out_refund_no;
//退款总金额单位为分
private int refund_fee;
//操作员的id默认为mch_id
private String op_user_id;
//微信官方提供的订单号
private String prepayid;
//记录所对应的member
private Member member;
//返回给微信的状态码（用于支付回调时）
public String return_code;
//微信h6支付时候的场景信息官方的信息模板 {"h6_info"://h6支付固定传"h6_info"
//{"type":"",//场景类型 "wap_url":"",//WAP网站URL地址"wap_name": ""//WAP 网站名}}
public String scene_info;
public String getScene_info() {
return scene_info;
}
public void setScene_info(String scene_info) {
this.scene_info = scene_info;
}
public String getReturn_code() {
return return_code;
}
public void setReturn_code(String return_code) {
this.return_code = return_code;
}
public String getAppid() {
return appid;
}
public String getMch_id() {
return mch_id;
}
public String getDevice_info() {
return device_info;
}
public String getNonce_str() {
return nonce_str;
}
public String getSign() {
return sign;
}
public String getBody() {
return body;
}
public String getDetail() {
return detail;
}
public String getAttach() {
return attach;
}
public String getOut_trade_no() {
return out_trade_no;
}
public String getFee_type() {
return fee_type;
}
public int getTotal_fee() {
return total_fee;
}
public String getSpbill_create_ip() {
return spbill_create_ip;
}
public String getTime_start() {
return time_start;
}
public String getTime_expire() {
return time_expire;
}
public String getGoods_tag() {
return goods_tag;
}
public String getNotify_url() {
return notify_url;
}
public String getTrade_type() {
return trade_type;
}
public String getProduct_id() {
return product_id;
}
public String getLimit_pay() {
return limit_pay;
}
public String getOpenid() {
return openid;
}
public void setAppid(String appid) {
this.appid = appid;
}
public void setMch_id(String mch_id) {
this.mch_id = mch_id;
}
public void setDevice_info(String device_info) {
this.device_info = device_info;
}
public void setNonce_str(String nonce_str) {
this.nonce_str = nonce_str;
}
public void setSign(String sign) {
this.sign = sign;
}
public void setBody(String body) {
this.body = body;
}
public void setDetail(String detail) {
this.detail = detail;
}
public void setAttach(String attach) {
this.attach = attach;
}
public void setOut_trade_no(String out_trade_no) {
this.out_trade_no = out_trade_no;
}
public void setFee_type(String fee_type) {
this.fee_type = fee_type;
}
public void setTotal_fee(int total_fee) {
this.total_fee = total_fee;
}
public void setSpbill_create_ip(String spbill_create_ip) {
this.spbill_create_ip = spbill_create_ip;
}
public void setTime_start(String time_start) {
this.time_start = time_start;
}
public void setTime_expire(String time_expire) {
this.time_expire = time_expire;
}
public void setGoods_tag(String goods_tag) {
this.goods_tag = goods_tag;
}
public void setNotify_url(String notify_url) {
this.notify_url = notify_url;
}
public void setTrade_type(String trade_type) {
this.trade_type = trade_type;
}
public void setProduct_id(String product_id) {
this.product_id = product_id;
}
public void setLimit_pay(String limit_pay) {
this.limit_pay = limit_pay;
}
public void setOpenid(String openid) {
this.openid = openid;
}
public String getOut_refund_no() {
return out_refund_no;
}
public void setOut_refund_no(String out_refund_no) {
this.out_refund_no = out_refund_no;
}
public int getRefund_fee() {
return refund_fee;
}
public void setRefund_fee(int refund_fee) {
this.refund_fee = refund_fee;
}
public Integer getWeixinId() {
return weixinId;
}
public void setWeixinId(Integer weixinId) {
this.weixinId = weixinId;
}
public Member getMember() {
return member;
}
public void setMember(Member member) {
this.member = member;
}
public String getPrepayid() {
return prepayid;
}
public void setPrepayid(String prepayid) {
this.prepayid = prepayid;
}
public String getOp_user_id() {
return op_user_id;
}
public void setOp_user_id(String op_user_id) {
this.op_user_id = op_user_id;
}
}
统一下单微信返回的参数组（xml）
package com.wellness.platfront.entity.weixin;
/**
* 统一下单微信返回的参数组（xml）
* @author
* @date 2017年08月11日
*/
public class UnifiedorderResult {
private String appid;//appid
private String mch_id;//商家id
private String device_info;//设备号
private String nonce_str;//随机字符串
private String sign;//签名
private String result_code;//错误码
private String err_code;//错误代码
private String err_code_des;//错误返回的信息描述
private String trade_type;//调用接口提交的交易类型，取值如下：JSAPI，NATIVE，APP
private String prepay_id;//微信生成的预支付回话标识，用于后续接口调用中使用，该值有效期为2小时
private String code_url;//trade_type为NATIVE是有返回，可将该参数值生成二维码展示出来进行扫码支付
private String return_code;//返回状态码SUCCESS/FAIL此字段是通信标识，非交易标识，交易是否成功需要查看result_code来判断
private String return_msg;//返回信息
public String getAppid() {
return appid;
}
public String getMch_id() {
return mch_id;
}
public String getDevice_info() {
return device_info;
}
public String getNonce_str() {
return nonce_str;
}
public String getSign() {
return sign;
}
public String getResult_code() {
return result_code;
}
public String getErr_code() {
return err_code;
}
public String getErr_code_des() {
return err_code_des;
}
public String getTrade_type() {
return trade_type;
}
public String getPrepay_id() {
return prepay_id;
}
public String getCode_url() {
return code_url;
}
public void setAppid(String appid) {
this.appid = appid;
}
public void setMch_id(String mch_id) {
this.mch_id = mch_id;
}
public void setDevice_info(String device_info) {
this.device_info = device_info;
}
public void setNonce_str(String nonce_str) {
this.nonce_str = nonce_str;
}
public void setSign(String sign) {
this.sign = sign;
}
public void setResult_code(String result_code) {
this.result_code = result_code;
}
public void setErr_code(String err_code) {
this.err_code = err_code;
}
public void setErr_code_des(String err_code_des) {
this.err_code_des = err_code_des;
}
public void setTrade_type(String trade_type) {
this.trade_type = trade_type;
}
public void setPrepay_id(String prepay_id) {
this.prepay_id = prepay_id;
}
public void setCode_url(String code_url) {
this.code_url = code_url;
}
public String getReturn_code() {
return return_code;
}
public String getReturn_msg() {
return return_msg;
}
public void setReturn_code(String return_code) {
this.return_code = return_code;
}
public void setReturn_msg(String return_msg) {
this.return_msg = return_msg;
}
}
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创新互联。
分享文章：java实现微信退款功能
本文来源：http://azwzsj.com/article/pgsecg.html
