微信扫码支付（基于java ssm）

//微信扫码支付主要为返回预生成交易链接，所以需要生成二维码，前端可使用jquery.QRcode.js进行生成//主要的Controllerpackage Controllers;

import Entity.UnifiedOrderRequest;import Entity.UnifiedOrderRespose;import com.alibaba.fastjson.JSONObject;import com.thoughtworks.xstream.XStream;import com.thoughtworks.xstream.io.xml.XmlFriendlyNameCoder;import com.thoughtworks.xstream.io.xml.XppDriver;import org.springframework.stereotype.Controller;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.ResponseBody;import org.springframework.web.servlet.ModelAndView;import utils.MD5Util;

import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.BufferedOutputStream;import java.io.BufferedReader;import java.io.InputStream;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.URL;import java.text.SimpleDateFormat;import java.util.*;

@Controller@RequestMapping("/createQRCode")public class createQRCode {

    @RequestMapping(method = RequestMethod.GET, value = "/pay", produces = "text/plain;charset=GBK")    public ModelAndView createCheck(){        ModelAndView view = new ModelAndView();        view.setViewName("forward:/jsp/wxPay.jsp");        return view ;    }

    /***     * 查询订单     * @param map     * @param response     * @param request     * @return     */    @ResponseBody    @RequestMapping(method = RequestMethod.POST, value = "/payCheck", produces = "text/plain;charset=GBK")    public String payCheck(@RequestBody Map<String,String> map, HttpServletResponse response, HttpServletRequest request){        try {            String tradeNo = map.get("tradeNo");

            //生成订单            String orderInfo = createSearchOrderInfo(tradeNo);            //调统一下单API            UnifiedOrderRespose code_return = httpSearchOrder(orderInfo);            JSONObject return_flag = new JSONObject();            if (code_return == null) {                return_flag.put("msg", 0);            } else {                return_flag.put("msg", code_return.getTrade_state_desc());

            }

            return return_flag.toString();        }catch (Exception e) {            e.printStackTrace();            JSONObject return_flag = new JSONObject();            return_flag.put("msg", 0);            return return_flag.toString();        }

    }

    /***     * 返回订单交易链接     * @param map     * @param response     * @param request     * @return     */    @ResponseBody    @RequestMapping(method = RequestMethod.POST, value = "/check", produces = "text/plain;charset=GBK")    public String createCheck(@RequestBody Map<String,String> map, HttpServletResponse response, HttpServletRequest request){        try {            String Ip = null;            if (request.getHeader("x-forwarded-for") == null) {                Ip = request.getRemoteAddr();            } else {                Ip = request.getHeader("x-forwarded-for");            }            String money = map.get("money");            String tradeNo = map.get("tradeNo");            String name = map.get("name");

            String realMoney = String.valueOf((int) (Float.parseFloat(money) * 100));            //生成订单            String orderInfo = createOrderInfo(Ip, realMoney, tradeNo, name);            //调统一下单API            String code_url = httpOrder(orderInfo);            JSONObject return_flag = new JSONObject();            if (code_url.equals("0")) {                return_flag.put("msg", 0);            } else {                return_flag.put("msg", code_url);

            }

            return return_flag.toString();        }catch (Exception e) {            e.printStackTrace();            JSONObject return_flag = new JSONObject();            return_flag.put("msg", 0);            return return_flag.toString();      }

    }    /**     * 生成订单     * @param     * @return     */    private String createOrderInfo(String IP, String money, String tradeNo, String name){        //生成订单对象        UnifiedOrderRequest unifiedOrderRequest = new UnifiedOrderRequest();        unifiedOrderRequest.setAppid("");//公众账号ID        unifiedOrderRequest.setMch_id("");//商户号        unifiedOrderRequest.setNonce_str(makeUUID());//随机字符串        unifiedOrderRequest.setBody(name);//商品描述        unifiedOrderRequest.setOut_trade_no(tradeNo);//商户订单号        unifiedOrderRequest.setTotal_fee(money);   //金额需要扩大100倍:1代表支付时是0.01        unifiedOrderRequest.setSpbill_create_ip(IP);//终端IP        unifiedOrderRequest.setNotify_url("");//通知地址,虽然有，但仍需通过查询订单的方式进行确认状态        unifiedOrderRequest.setTrade_type("NATIVE");//JSAPI--公众号支付、NATIVE--原生扫码支付、APP--app支付        unifiedOrderRequest.setSign(createSign(unifiedOrderRequest));//签名说明5(见文末，签名方法一并给出)        //将订单对象转为xml格式        XStream xStream = new XStream(new XppDriver(new XmlFriendlyNameCoder("_-", "_"))); 

        xStream.alias("xml", UnifiedOrderRequest.class);//根元素名需要是xml        return xStream.toXML(unifiedOrderRequest);    }

    /***     *生成查询订单序列化     * @param tradeNo     * @return     */    private String createSearchOrderInfo(String tradeNo){        //生成订单对象        UnifiedOrderRequest unifiedOrderRequest = new UnifiedOrderRequest();        unifiedOrderRequest.setAppid("");//公众账号ID        unifiedOrderRequest.setMch_id("");//商户号        unifiedOrderRequest.setNonce_str(makeUUID());//随机字符串        unifiedOrderRequest.setOut_trade_no(tradeNo);//商户订单号        unifiedOrderRequest.setSign(createSearchSign(unifiedOrderRequest));//签名说明5(见文末，签名方法一并给出)        //将订单对象转为xml格式        XStream xStream = new XStream(new XppDriver(new XmlFriendlyNameCoder("_-", "_"))); 

        xStream.alias("xml", UnifiedOrderRequest.class);//根元素名需要是xml        return xStream.toXML(unifiedOrderRequest);    }

    /**     * 调统一下单API     * @param orderInfo     * @return     */    private String httpOrder(String orderInfo) {        String url = "https://api.mch.weixin.qq.com/pay/unifiedorder";        try {            HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();            //加入数据            conn.setRequestMethod("POST");            conn.setDoOutput(true);

            BufferedOutputStream buffOutStr = new BufferedOutputStream(conn.getOutputStream());            buffOutStr.write(orderInfo.getBytes("UTF-8"));            buffOutStr.flush();            buffOutStr.close();

            //获取输入流            InputStream is = null;            BufferedReader reader = null;            is = conn.getInputStream();            reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));//            BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));

            String line = null;            StringBuffer sb = new StringBuffer();            while((line = reader.readLine())!= null){                sb.append(line);            }

            XStream xStream = new XStream(new XppDriver(new XmlFriendlyNameCoder("_-", "_")));//说明3(见文末)            //将请求返回的内容通过xStream转换为UnifiedOrderRespose对象            xStream.alias("xml", UnifiedOrderRespose.class);            UnifiedOrderRespose unifiedOrderRespose = (UnifiedOrderRespose) xStream.fromXML(sb.toString());

            //根据微信文档return_code 和result_code都为SUCCESS的时候才会返回code_url            if(null!=unifiedOrderRespose                    && "SUCCESS".equals(unifiedOrderRespose.getReturn_code())                    && "SUCCESS".equals(unifiedOrderRespose.getResult_code())){                return unifiedOrderRespose.getCode_url();            }else{                return "0";            }        } catch (Exception e) {            e.printStackTrace();        }        return null;    }

    /**     * 调统一下单API     * @param orderInfo     * @return     */    private UnifiedOrderRespose httpSearchOrder(String orderInfo) {        String url = "https://api.mch.weixin.qq.com/pay/orderquery";        try {            HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();            //加入数据            conn.setRequestMethod("POST");            conn.setDoOutput(true);

            BufferedOutputStream buffOutStr = new BufferedOutputStream(conn.getOutputStream());            buffOutStr.write(orderInfo.getBytes("UTF-8"));            buffOutStr.flush();            buffOutStr.close();

            //获取输入流            InputStream is = null;            BufferedReader reader = null;            is = conn.getInputStream();            reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));//            BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));

            String line = null;            StringBuffer sb = new StringBuffer();            while((line = reader.readLine())!= null){                sb.append(line);            }

            XStream xStream = new XStream(new XppDriver(new XmlFriendlyNameCoder("_-", "_")));//说明3(见文末)            //将请求返回的内容通过xStream转换为UnifiedOrderRespose对象            xStream.alias("xml", UnifiedOrderRespose.class);            UnifiedOrderRespose unifiedOrderRespose = (UnifiedOrderRespose) xStream.fromXML(sb.toString());

            //根据微信文档return_code 和result_code都为SUCCESS的时候            if(null!=unifiedOrderRespose                    && "SUCCESS".equals(unifiedOrderRespose.getReturn_code())                    && "SUCCESS".equals(unifiedOrderRespose.getResult_code())){                return unifiedOrderRespose;            }else{                return null;            }        } catch (Exception e) {            e.printStackTrace();        }        return null;    }

    /**     * 创建UUID     * @return     */    public static synchronized String makeUUID() {        Date date = new Date();        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMddHHmmss");        StringBuffer s = new StringBuffer(dateFormat.format(date));        return s.append((new Random().nextInt(900) + 100)).toString();    }

    /**     * 生成签名     * @return     */    private String createSign(UnifiedOrderRequest unifiedOrderRequest) {        //根据规则创建可排序的map集合        SortedMap<String, String> packageParams = new TreeMap<String, String>();        packageParams.put("appid", unifiedOrderRequest.getAppid());        packageParams.put("body", unifiedOrderRequest.getBody());        packageParams.put("mch_id", unifiedOrderRequest.getMch_id());        packageParams.put("nonce_str", unifiedOrderRequest.getNonce_str());        packageParams.put("notify_url", unifiedOrderRequest.getNotify_url());        packageParams.put("out_trade_no", unifiedOrderRequest.getOut_trade_no());        packageParams.put("spbill_create_ip", unifiedOrderRequest.getSpbill_create_ip());        packageParams.put("trade_type", unifiedOrderRequest.getTrade_type());        packageParams.put("total_fee", unifiedOrderRequest.getTotal_fee());

        StringBuffer sb = new StringBuffer();        Set es = packageParams.entrySet();//字典序        Iterator it = es.iterator();        while (it.hasNext()) {            Map.Entry entry = (Map.Entry) it.next();            String k = (String) entry.getKey();            String v = (String) entry.getValue();            //为空不参与签名、参数名区分大小写            if (null != v && !"".equals(v) && !"sign".equals(k)                    && !"key".equals(k)) {                sb.append(k + "=" + v + "&");            }        }        //第二步拼接key，key设置路径：微信商户平台(pay.weixin.qq.com)-->账户设置-->API安全-->密钥设置        sb.append("key=" +"");        String sign = MD5Util.MD5Encode(sb.toString(), "utf-8")                .toUpperCase();//MD5加密        return sign;    }

    /***     * 生成查询订单签名     * @param unifiedOrderRequest     * @return     */    private String createSearchSign(UnifiedOrderRequest unifiedOrderRequest) {        //根据规则创建可排序的map集合        SortedMap<String, String> packageParams = new TreeMap<String, String>();        packageParams.put("appid", unifiedOrderRequest.getAppid());        packageParams.put("mch_id", unifiedOrderRequest.getMch_id());        packageParams.put("nonce_str", unifiedOrderRequest.getNonce_str());        packageParams.put("out_trade_no", unifiedOrderRequest.getOut_trade_no());

        StringBuffer sb = new StringBuffer();        Set es = packageParams.entrySet();//字典序        Iterator it = es.iterator();        while (it.hasNext()) {            Map.Entry entry = (Map.Entry) it.next();            String k = (String) entry.getKey();            String v = (String) entry.getValue();            //为空不参与签名、参数名区分大小写            if (null != v && !"".equals(v) && !"sign".equals(k)                    && !"key".equals(k)) {                sb.append(k + "=" + v + "&");            }        }        //第二步拼接key，key设置路径：微信商户平台(pay.weixin.qq.com)-->账户设置-->API安全-->密钥设置        sb.append("key=" +"");        String sign = MD5Util.MD5Encode(sb.toString(), "utf-8")                .toUpperCase();//MD5加密        return sign;    }}//定义请求的实体类
package Entity;/** * 统一下单请求参数(必填) * @author moucong * */public class UnifiedOrderRequest {

    public String getAppid() {        return appid;    }

    public void setAppid(String appid) {        this.appid = appid;    }

    public String getMch_id() {        return mch_id;    }

    public void setMch_id(String mch_id) {        this.mch_id = mch_id;    }

    public String getNonce_str() {        return nonce_str;    }

    public void setNonce_str(String nonce_str) {        this.nonce_str = nonce_str;    }

    public String getSign() {        return sign;    }

    public void setSign(String sign) {        this.sign = sign;    }

    public String getBody() {        return body;    }

    public void setBody(String body) {        this.body = body;    }

    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;    }

    public String getTotal_fee() {        return total_fee;    }

    public void setTotal_fee(String total_fee) {        this.total_fee = total_fee;    }

    public String getSpbill_create_ip() {        return spbill_create_ip;    }

    public void setSpbill_create_ip(String spbill_create_ip) {        this.spbill_create_ip = spbill_create_ip;    }

    public String getNotify_url() {        return notify_url;    }

    public void setNotify_url(String notify_url) {        this.notify_url = notify_url;    }

    public String getTrade_type() {        return trade_type;    }

    public void setTrade_type(String trade_type) {        this.trade_type = trade_type;    }

    private String appid;           //公众账号ID    private String mch_id;          //商户号    private String nonce_str;        //随机字符串    private String sign;            //签名    private String body;            //商品描述    private String out_trade_no;      //商户订单号    private String total_fee;        //总金额    private String spbill_create_ip;   //终端IP    private String notify_url;       //通知地址    private String trade_type;       //交易类型

}//返回接收数据的实体类
package Entity;/** * 统一下单返回参数 * @author moucong * */public class UnifiedOrderRespose {

    private String return_code;             //返回状态码    private String return_msg;          //返回信息    private String appid;              //公众账号ID    private String mch_id;             //商户号    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;             //业务结果    private String err_code;            //错误代码    private String err_code_des;         //错误代码描述    private String trade_type;          //交易类型    private String prepay_id;           //预支付交易会话标识    private String code_url;            //二维码链接    private String total_fee;        //总金额    private String out_trade_no;      //商户订单号    private String trade_state;             //交易状态    private String trade_state_desc;            //交易状态描述    private String openid;          //用户标识    private String is_subscribe;   //是否关注公众账号    private String bank_type;   //付款银行    private String cash_fee;   //现金支付金额    private String transaction_id;   //微信支付订单号    private String time_end;   //支付完成时间    private String fee_type;   //标价币种    private String attach;   //附加数据    private String cash_fee_type;   //现金支付币种    private String coupon_fee;   //代金券金额    private String coupon_count;   //代金券使用数量    private String coupon_type_$n;   //代金券类型    private String coupon_id_$n;   //代金券ID    private String coupon_fee_$n;   //单个代金券支付金额

    public String getCash_fee_type() {        return cash_fee_type;    }

    public void setCash_fee_type(String cash_fee_type) {        this.cash_fee_type = cash_fee_type;    }

    public String getCoupon_fee() {        return coupon_fee;    }

    public void setCoupon_fee(String coupon_fee) {        this.coupon_fee = coupon_fee;    }

    public String getCoupon_count() {        return coupon_count;    }

    public void setCoupon_count(String coupon_count) {        this.coupon_count = coupon_count;    }

    public String getCoupon_type_$n() {        return coupon_type_$n;    }

    public void setCoupon_type_$n(String coupon_type_$n) {        this.coupon_type_$n = coupon_type_$n;    }

    public String getCoupon_id_$n() {        return coupon_id_$n;    }

    public void setCoupon_id_$n(String coupon_id_$n) {        this.coupon_id_$n = coupon_id_$n;    }

    public String getCoupon_fee_$n() {        return coupon_fee_$n;    }

    public void setCoupon_fee_$n(String coupon_fee_$n) {        this.coupon_fee_$n = coupon_fee_$n;    }

    public String getAttach() {        return attach;    }

    public void setAttach(String attach) {        this.attach = attach;    }

    public String getFee_type() {        return fee_type;    }

    public void setFee_type(String fee_type) {        this.fee_type = fee_type;    }

    public String getReturn_code() {        return return_code;    }

    public void setReturn_code(String return_code) {        this.return_code = return_code;    }

    public String getReturn_msg() {        return return_msg;    }

    public void setReturn_msg(String return_msg) {        this.return_msg = return_msg;    }

    public String getAppid() {        return appid;    }

    public void setAppid(String appid) {        this.appid = appid;    }

    public String getMch_id() {        return mch_id;    }

    public void setMch_id(String mch_id) {        this.mch_id = mch_id;    }

    public String getDevice_info() {        return device_info;    }

    public void setDevice_info(String device_info) {        this.device_info = device_info;    }

    public String getNonce_str() {        return nonce_str;    }

    public void setNonce_str(String nonce_str) {        this.nonce_str = nonce_str;    }

    public String getSign() {        return sign;    }

    public void setSign(String sign) {        this.sign = sign;    }

    public String getResult_code() {        return result_code;    }

    public void setResult_code(String result_code) {        this.result_code = result_code;    }

    public String getErr_code() {        return err_code;    }

    public void setErr_code(String err_code) {        this.err_code = err_code;    }

    public String getErr_code_des() {        return err_code_des;    }

    public void setErr_code_des(String err_code_des) {        this.err_code_des = err_code_des;    }

    public String getTrade_type() {        return trade_type;    }

    public void setTrade_type(String trade_type) {        this.trade_type = trade_type;    }

    public String getPrepay_id() {        return prepay_id;    }

    public void setPrepay_id(String prepay_id) {        this.prepay_id = prepay_id;    }

    public String getCode_url() {        return code_url;    }

    public void setCode_url(String code_url) {        this.code_url = code_url;    }

    public String getIs_subscribe() {        return is_subscribe;    }

    public void setIs_subscribe(String is_subscribe) {        this.is_subscribe = is_subscribe;    }

    public String getBank_type() {        return bank_type;    }

    public void setBank_type(String bank_type) {        this.bank_type = bank_type;    }

    public String getCash_fee() {        return cash_fee;    }

    public void setCash_fee(String cash_fee) {        this.cash_fee = cash_fee;    }

    public String getTransaction_id() {        return transaction_id;    }

    public void setTransaction_id(String transaction_id) {        this.transaction_id = transaction_id;    }

    public String getTime_end() {        return time_end;    }

    public void setTime_end(String time_end) {        this.time_end = time_end;    }

    public String getOpenid() {        return openid;    }

    public void setOpenid(String openid) {        this.openid = openid;    }

    public String getTrade_state_desc() {        return trade_state_desc;    }

    public void setTrade_state_desc(String trade_state_desc) {        this.trade_state_desc = trade_state_desc;    }

    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;    }

    public String getTotal_fee() {        return total_fee;    }

    public void setTotal_fee(String total_fee) {        this.total_fee = total_fee;    }

    public String getTrade_state() {        return trade_state;    }

    public void setTrade_state(String trade_state) {        this.trade_state = trade_state;    }}//MD5算法
package utils;

import java.security.MessageDigest;

/** * *************************************************** * * @Auther: zianY  -.-- .- -. --.    --.. ..   .- -. * @Descipion: MD5 * @CreateDate: 2019-12-19 * **************************************************** */public class MD5Util {

    public static void main(String[] args) {

        //  99B26BE5F5F7AF4A576DFB6DF0DD38FF        System.out.println(MD5EncodeUtf8("123456"));    }

    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];    }

    /**     * 返回大写MD5     *     * @param origin     * @param charsetname     * @return     */    public static String MD5Encode(String origin, String charsetname) {        String resultString = null;        try {            resultString = origin;            MessageDigest md = MessageDigest.getInstance("MD5");            if (charsetname == null || "".equals(charsetname))                resultString = byteArrayToHexString(md.digest(resultString.getBytes()));            else                resultString = byteArrayToHexString(md.digest(resultString.getBytes(charsetname)));        } catch (Exception exception) {        }        return resultString.toUpperCase();    }

    /**     * @param origin     * @return     */    public static String MD5EncodeUtf8(String origin) {        origin = origin + "[email protected]#@$1234da";        return MD5Encode(origin.trim(), "utf-8");    }

    private static final String hexDigits[] = {"0", "1", "2", "3", "4", "5",            "6", "7", "8", "9", "a", "b", "c", "d", "e", "f"};

}



原文地址：https://www.cnblogs.com/setname/p/12199892.html
				


				
时间： 2024-10-18 19:27:43 

		


		


	

	
	

		


		
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