微信支付java版本之退款申请

1.接口简介

2.代码实现

package com.pay.controller.weixin;import java.io.File;import java.io.FileInputStream;import java.security.KeyStore;import java.text.SimpleDateFormat;import java.util.Date;import javax.net.ssl.SSLContext;import javax.servlet.http.HttpServletResponse;import net.sf.json.JSONObject;import org.apache.http.HttpEntity;import org.apache.http.client.methods.CloseableHttpResponse;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.HttpClients;import org.apache.http.util.EntityUtils;import org.dom4j.Document;import org.dom4j.Element;import org.dom4j.io.SAXReader;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.http.HttpStatus;import org.springframework.web.bind.annotation.RequestBody;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.ResponseStatus;import org.springframework.web.bind.annotation.RestController;import com.pay.bo.ReturnHist;import com.pay.service.WeiXinRefundService;import com.pay.utils.weixin.ClientCustomSSL;import com.pay.utils.weixin.CustomizedPropertyPlaceholderConfigurer;@RestController@RequestMapping("/pay/refund")public class WeiXinRefundController {@AutowiredWeiXinRefundService weiXinRefundService;/** * 微信退款 * @param request * @param response * @return */@RequestMapping(value="/weiXinRefund",method=RequestMethod.POST)@ResponseStatus(HttpStatus.OK)public Object refund(HttpServletResponse response,@RequestBody String body){System.out.println("==========================微信退款开始!!========================");try{JSONObject jsonO = JSONObject.fromObject(body);KeyStore keyStore = KeyStore.getInstance("PKCS12");FileInputStream instream = new FileInputStream(new File(CustomizedPropertyPlaceholderConfigurer.getContextProperty("wx.cert").toString()));try {keyStore.load(instream,"见邮件".toCharArray());}finally {instream.close();}// Trust own CA and all self-signed certsSSLContext sslcontext = SSLContexts.custom().loadKeyMaterial(keyStore,"见邮件".toCharArray()).build();// Allow TLSv1 protocol onlySSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslcontext, new String[] { "TLSv1" }, null,SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);CloseableHttpClient httpclient = HttpClients.custom().setSSLSocketFactory(sslsf).build();// HttpGet httpget = new// HttpGet("https://api.mch.weixin.qq.com/secapi/pay/refund");HttpPost httppost = new HttpPost("https://api.mch.weixin.qq.com/secapi/pay/refund");String  totalFee = jsonO.get("totalFee").toString();String outTradeNo = weiXinRefundService.getTradePayNo(jsonO.getString("orderNo"));//"所退款订单编号"String refundFee = jsonO.get("refundFee").toString();//"退款金额"Date dt = new Date();SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");String nonceStr = sdf.format(dt).toString();//"随机字符串";String xml = ClientCustomSSL.RefundNativePackage(outTradeNo,nonceStr,totalFee,refundFee,nonceStr);try {StringEntity se = new StringEntity(xml);httppost.setEntity(se);System.out.println("executing request" + httppost.getRequestLine());CloseableHttpResponse responseEntry = httpclient.execute(httppost);try {HttpEntity entity = responseEntry.getEntity();System.out.println("----------------------------------------");System.out.println(responseEntry.getStatusLine());if (entity != null) {System.out.println("Response content length: "+ entity.getContentLength());SAXReader saxReader = new SAXReader();Document document = saxReader.read(entity.getContent());Element rootElt = document.getRootElement();System.out.println("根节点：" + rootElt.getName());System.out.println("==="+rootElt.elementText("return_code"));System.out.println("==="+rootElt.elementText("result_code"));System.out.println("==="+rootElt.elementText("transaction_id"));System.out.println("==="+rootElt.elementText("out_trade_no"));System.out.println("==="+rootElt.elementText("out_refund_no"));System.out.println("==="+rootElt.elementText("refund_id"));System.out.println("==="+rootElt.elementText("refund_channel"));System.out.println("==="+rootElt.elementText("refund_fee"));System.out.println("==="+rootElt.elementText("coupon_refund_fee"));String returnCode = rootElt.elementText("return_code");JSONObject result = new JSONObject();if(returnCode.equals("SUCCESS")){ReturnHist rh = new ReturnHist();rh.setOtherRefundId(rootElt.elementText("out_refund_no"));rh.setReturnChannelType(rootElt.elementText("refund_channel"));rh.setReturnMoneyBak(Float.parseFloat(totalFee)/100);rh.setReturnMoneyBalance((Float.parseFloat(totalFee)-Float.parseFloat(rootElt.elementText("refund_fee")))/100);rh.setReturnOrderNo(rootElt.elementText("out_refund_no"));rh.setAppKey(jsonO.getString("appKey"));weiXinRefundService.addRefundInfo(rh);System.out.println("======================微信退款成功=================");result.put("status","success");result.put("msg","success");result.put("returnChannelType", rh.getReturnChannelType());result.put("otherRefundId", rh.getOtherRefundId());result.put("returnMoneyBak", rh.getReturnMoneyBak());result.put("returnMoneyBalance", rh.getReturnMoneyBalance());result.put("returnOrderNo", rh.getReturnOrderNo());}else{result.put("status","false");result.put("msg",rootElt.elementText("err_code_des"));}return result;}EntityUtils.consume(entity);}finally {responseEntry.close();}}finally {httpclient.close();}return null;}catch(Exception e){e.printStackTrace();JSONObject result = new JSONObject();result.put("status","error");result.put("msg",e.getMessage());return result;}}}

3.其他接口

微信获取access_token:http://blog.csdn.net/wangxuewei111/article/details/44020571

微信jsApi支付+发送模板消息：http://blog.csdn.net/wangxuewei111/article/details/43982381

微信支付native支付+工具类：http://blog.csdn.net/wangxuewei111/article/details/43954857

微信关闭订单：http://blog.csdn.net/wangxuewei111/article/details/44020881

微信查询订单：http://blog.csdn.net/wangxuewei111/article/details/44037267