支付宝APP支付java版

package weixin.util; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.util.ArrayList; import java.util.Arrays; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Set; import java.util.SortedMap; import java.util.TreeMap; import java.util.UUID; import javax.servlet.http.HttpServletRequest; import org.apache.commons.lang3.StringUtils; import org.apache.http.HttpResponse; import org.apache.http.client.methods.HttpPost; import org.apache.http.client.params.ClientPNames; import org.apache.http.entity.StringEntity; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.util.EntityUtils; import org.jdom.Document; import org.jdom.Element; import org.jdom.JDOMException; import org.jdom.input.SAXBuilder; import weixin.config.WxPayConfig; import weixin.dto.WeixinInfoDTO; import weixin.util.http.HttpClientConnectionManager; /** * 微信支付工具类 * @author liyizhong * @since 2015-09-01 * */ public class WeixinPayUtil { public static final String SUBMIT_URL ="https://api.mch.weixin.qq.com/pay/unifiedorder"; public static DefaultHttpClient httpclient; static { httpclient = new DefaultHttpClient(); httpclient = (DefaultHttpClient) HttpClientConnectionManager .getSSLInstance(httpclient); } public static String getPayNo(String url, String xmlParam) { DefaultHttpClient client = new DefaultHttpClient(); client.getParams().setParameter(ClientPNames.ALLOW_CIRCULAR_REDIRECTS, true); HttpPost httpost = HttpClientConnectionManager.getPostMethod(url); String prepay_id = ""; try { httpost.setEntity(new StringEntity(xmlParam, "UTF-8")); HttpResponse response = httpclient.execute(httpost); String jsonStr = EntityUtils .toString(response.getEntity(), "UTF-8"); Map<String, Object> dataMap = new HashMap<String, Object>(); System.out.println("jsonStr============================"+jsonStr); if (jsonStr.indexOf("FAIL") != -1) { return prepay_id; } Map map = doXMLParse(jsonStr); String return_code = (String) map.get("return_code"); prepay_id = (String) map.get("prepay_id"); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } return prepay_id; } public static Map getPayNo2(String url, String xmlParam) { DefaultHttpClient client = new DefaultHttpClient(); client.getParams().setParameter(ClientPNames.ALLOW_CIRCULAR_REDIRECTS, true); HttpPost httpost = HttpClientConnectionManager.getPostMethod(url); String prepay_id = ""; Map map = new HashMap<>(); try { httpost.setEntity(new StringEntity(xmlParam, "UTF-8")); HttpResponse response = httpclient.execute(httpost); String jsonStr = EntityUtils .toString(response.getEntity(), "UTF-8"); Map<String, Object> dataMap = new HashMap<String, Object>(); System.out.println("jsonStr============================"+jsonStr); if (jsonStr.indexOf("FAIL") != -1) { return map; } map = doXMLParse(jsonStr); // String return_code = (String) map.get("return_code"); // System.out.println("return_code============================"+return_code); // prepay_id = (String) map.get("prepay_id"); // System.out.println("prepay_id============================"+prepay_id); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } return map; } /** * 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 Map doXMLParse(String strxml) throws Exception { if (null == strxml || "".equals(strxml)) { return null; } Map m = new HashMap(); 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 = getChildrenText(children); } m.put(k, v); } // 关闭流 in.close(); return m; } /** * 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(getChildrenText(list)); } sb.append(value); sb.append("</" + name + ">"); } } return sb.toString(); } public static InputStream String2Inputstream(String str) { return new ByteArrayInputStream(str.getBytes()); } /** * 获取统一订单提交返回字符串值 * @param url * @param xmlParam * @return */ public static String getTradeOrder(String url, String xmlParam) { DefaultHttpClient client = new DefaultHttpClient(); client.getParams().setParameter(ClientPNames.ALLOW_CIRCULAR_REDIRECTS, true); HttpPost httpost = HttpClientConnectionManager.getPostMethod(url); String jsonStr = ""; try { httpost.setEntity(new StringEntity(xmlParam, "UTF-8")); HttpResponse response = httpclient.execute(httpost); jsonStr = EntityUtils.toString(response.getEntity(), "UTF-8"); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } return jsonStr; } /** * 生成二维码地址 * @param weixinInfoDTO * @return */ public static String generateCodeUrl(WeixinInfoDTO weixinInfoDTO){ String codeUrl = ""; String submitXml = buildWeixinXml(weixinInfoDTO); String resultStr = getTradeOrder(SUBMIT_URL,submitXml); if(StringUtils.isNotBlank(resultStr)){ try { Map map = doXMLParse(resultStr); codeUrl = (String)map.get("code_url"); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } return codeUrl; } /** * 创建md5摘要,规则是:按参数名称a-z排序,遇到空值的参数不参加签名。 */ public static String createSign(SortedMap<String, String> packageParams) { 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="+WxPayConfig.partnerkey+""); String sign = MD5Util.MD5Encode(sb.toString(), "UTF-8").toUpperCase(); return sign; } public static String getSign(Map<String,String> paramMap,String key){ List list = new ArrayList(paramMap.keySet()); Object[] ary = list.toArray(); Arrays.sort(ary); list = Arrays.asList(ary); String str = ""; for(int i=0;i<list.size();i++){ str+=list.get(i)+"="+paramMap.get(list.get(i)+"")+"&"; } str+="key="+key; str = MD5Util.MD5Encode(str, "UTF-8").toUpperCase(); return str; } /** * 创建提交统一订单的xml * @return */ public static String buildWeixinXml(WeixinInfoDTO weixinInfoDTO){ String xml = "<xml>" + "<appid>"+weixinInfoDTO.getAppid()+"</appid>" + "<body>"+weixinInfoDTO.getBody()+"</body>" + "<mch_id>"+weixinInfoDTO.getMch_id()+"</mc