自己可以做招聘的网站吗,网站排名提升工具,wordpress调用随机缩略图,SEO案例网站建设公司记录一下微信小程序支付
简介#xff1a;微信小程序支付这里的坑还是有的#xff0c;所以提醒各位在编写的一定要注意#xff01;#xff01;#xff01; 1.首先呢#xff0c;你需要准备openid#xff0c;appid#xff0c;还有申请微信支付后要设置一个32位的密钥微信小程序支付这里的坑还是有的所以提醒各位在编写的一定要注意 1.首先呢你需要准备openidappid还有申请微信支付后要设置一个32位的密钥需要先生成一个sign得到prepay_id然后再得到一个paySign总之就是很墨迹下面献上我的controller //微信下单支付ResponseBodyRequestMapping(doOrder)public void doOrder(HttpServletRequest request, HttpServletResponse response) throws IOException, JDOMException {request.setCharacterEncoding(UTF-8);response.setCharacterEncoding(UTF-8);//得到openidString openid request.getParameter(openid);int fee 0;//得到小程序传过来的价格注意这里的价格必须为整数1代表1分所以传过来的值必须*100if (null ! request.getParameter(price)) {fee Integer.parseInt(request.getParameter(price).toString());}System.out.println(request.getParameter(price));System.out.println(fee);//订单编号String did request.getParameter(did);//订单标题String title request.getParameter(title);//时间戳String times System.currentTimeMillis() ;SortedMapObject, Object packageParams new TreeMapObject, Object();packageParams.put(appid, wxa**********2e2);packageParams.put(mch_id, 1486425722);packageParams.put(nonce_str, times);//时间戳packageParams.put(body, title);//支付主体packageParams.put(out_trade_no, did);//编号packageParams.put(total_fee, fee);//价格// packageParams.put(spbill_create_ip, getIp2(request));这里之前加了ip但是总是获取sign失败原因不明之后就注释掉了packageParams.put(notify_url, base/notify);//支付返回地址不用纠结这个东西我就是随便写了一个接口内容什么都没有packageParams.put(trade_type, JSAPI);//这个api有固定的packageParams.put(openid, openid);//openid//获取signString sign PayCommonUtil.createSign(UTF-8, packageParams, x********************************4);//最后这个是自己设置的32位密钥packageParams.put(sign, sign);//转成XMLString requestXML PayCommonUtil.getRequestXml(packageParams);System.out.println(requestXML);//得到含有prepay_id的XMLString resXml HttpUtil.postData(https://api.mch.weixin.qq.com/pay/unifiedorder, requestXML);System.out.println(resXml);//解析XML存入MapMap map XMLUtil.doXMLParse(resXml);System.out.println(map);// String return_code (String) map.get(return_code);//得到prepay_idString prepay_id (String) map.get(prepay_id);SortedMapObject, Object packageP new TreeMapObject, Object();packageP.put(appId, wxa**********2e2);//注意这里是appId,上面是appid真怀疑写这个东西的人。。。packageP.put(nonceStr, times);//时间戳packageP.put(package, prepay_id prepay_id);//必须把package写成 prepay_idprepay_id这种形式packageP.put(signType, MD5);//paySign加密packageP.put(timeStamp, (System.currentTimeMillis() / 1000) );//得到paySignString paySign PayCommonUtil.createSign(UTF-8, packageP, x********************************4);packageP.put(paySign, paySign);//将packageP数据返回给小程序Gson gson new Gson();String json gson.toJson(packageP);PrintWriter pw response.getWriter();System.out.println(json);pw.write(json);pw.close();}2.下面是需要用到的工具类 1.生成sign以及得到sign后生成XML工具类PayCommonUtil
public class PayCommonUtil {/** * 是否签名正确,规则是:按参数名称a-z排序,遇到空值的参数不参加签名。 * return boolean */ public static boolean isTenpaySign(String characterEncoding, SortedMapObject, Object packageParams, String API_KEY) { 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(!sign.equals(k) null ! v !.equals(v)) { sb.append(k v ); } } sb.append(key API_KEY); //算出摘要 String mysign MD5.MD5Encode(sb.toString(), characterEncoding).toLowerCase(); String tenpaySign ((String)packageParams.get(sign)).toLowerCase(); //System.out.println(tenpaySign mysign); return tenpaySign.equals(mysign); } /** * author * Descriptionsign签名 * param characterEncoding * 编码格式 * param parameters * 请求参数 * return */ public static String createSign(String characterEncoding, SortedMapObject, Object packageParams, String API_KEY) { StringBuffer sb new StringBuffer(); Set es packageParams.entrySet(); Iterator it es.iterator(); while (it.hasNext()) { Map.Entry entry (Map.Entry) it.next(); String k entry.getKey().toString(); String v entry.getValue().toString(); if (null ! v !.equals(v) !sign.equals(k) !key.equals(k)) { sb.append(k v ); } } sb.append(key API_KEY); String sign MD5.MD5Encode(sb.toString(), characterEncoding).toUpperCase(); return sign; } /** * author * Description将请求参数转换为xml格式的string * param parameters * 请求参数 * return */ public static String getRequestXml(SortedMapObject, Object parameters) { StringBuffer sb new StringBuffer(); sb.append(xml); Set es parameters.entrySet(); Iterator it es.iterator(); while (it.hasNext()) { Map.Entry entry (Map.Entry) it.next(); String k entry.getKey().toString(); String v entry.getValue().toString(); if (attach.equalsIgnoreCase(k) || body.equalsIgnoreCase(k) || sign.equalsIgnoreCase(k)) { sb.append( k ![CDATA[ v ]]/ k ); } else { sb.append( k v / k ); } } sb.append(/xml); return sb.toString(); } /** * 取出一个指定长度大小的随机正整数. * * param length * int 设定所取出随机数的长度。length小于11 * return int 返回生成的随机数。 */ public static int buildRandom(int length) { int num 1; double random Math.random(); if (random 0.1) { random random 0.1; } for (int i 0; i length; i) { num num * 10; } return (int) ((random * num)); } /** * 获取当前时间 yyyyMMddHHmmss * * return String */ public static String getCurrTime() { Date now new Date(); SimpleDateFormat outFormat new SimpleDateFormat(yyyyMMddHHmmss); String s outFormat.format(now); return s; }
}2.访问官方接口得到含有prepay_id的XML工具类HttpUtil public class HttpUtil {//private static final Log logger Logs.get(); private final static int CONNECT_TIMEOUT 5000; // in milliseconds private final static String DEFAULT_ENCODING UTF-8; public static String postData(String urlStr, String data){ return postData(urlStr, data, null); } public static String postData(String urlStr, String data, String contentType){ BufferedReader reader null; try { URL url new URL(urlStr); URLConnection conn url.openConnection(); conn.setDoOutput(true); conn.setConnectTimeout(CONNECT_TIMEOUT); conn.setReadTimeout(CONNECT_TIMEOUT); if(contentType ! null) conn.setRequestProperty(content-type, contentType); OutputStreamWriter writer new OutputStreamWriter(conn.getOutputStream(), DEFAULT_ENCODING); if(data null) data ; writer.write(data); writer.flush(); writer.close(); reader new BufferedReader(new InputStreamReader(conn.getInputStream(), DEFAULT_ENCODING)); StringBuilder sb new StringBuilder(); String line null; while ((line reader.readLine()) ! null) { sb.append(line); sb.append(\r\n); } return sb.toString(); } catch (IOException e) { //logger.error(Error connecting to urlStr : e.getMessage()); } finally { try { if (reader ! null) reader.close(); } catch (IOException e) { } } return null; } }
3.解析XML工具类
public class XMLUtil {public static Map doXMLParse(String strxml) throws JDOMException, IOException { strxml strxml.replaceFirst(encoding\.*\, encoding\UTF-8\); if(null strxml || .equals(strxml)) { return null; } Map m new HashMap(); InputStream in new ByteArrayInputStream(strxml.getBytes(UTF-8)); 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); } 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(XMLUtil.getChildrenText(list)); } sb.append(value); sb.append(/ name ); } } return sb.toString(); }
}4.MD5加密工具类
public class MD5 {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 };}3.小程序支付向后台传输的参数 gopay: function () {
var that this
wx.request({url: app.baseurl doOrder,data: {openid: wx.getStorageSync(openids),title: that.data.title,did: that.data.did,price: that.data.price*100},method: POST,header: {content-type: application/x-www-form-urlencoded},success: function (res) {console.log(res.data)console.log(res.data.timeStamp)console.log(res.data.nonceStr)console.log(res.data.package)console.log(res.data.paySign)wx.requestPayment({timeStamp: res.data.timeStamp,nonceStr: res.data.nonceStr,package: res.data.package,signType: res.data.signType,paySign: res.data.paySign,success: function (res) {wx.request({url: app.baseurlupdateState,data: {did: that.data.did,},method: GET,success:function(res){console.log(res.data)if(res.data1){wx.redirectTo({url: ../orderDetial/orderDetial?did that.data.did,})}}})},fail: function (res) {console.log(res)}})}
})}结束啦小程序支付的java后台就这些。
