uniapp+java小程序支付

1、前端

	.app {
		width: 100%;
	}

	.price-box {
		background-color: #fff;
		height: 265upx;
		display: flex;
		flex-direction: column;
		justify-content: center;
		align-items: center;
		font-size: 28upx;
		color: #909399;

		.price {
			font-size: 50upx;
			color: #303133;
			margin-top: 12upx;

			&:before {
				content: '￥';
				font-size: 40upx;
			}
		}
	}

	.pay-type-list {
		margin-top: 20upx;
		background-color: #fff;
		padding-left: 60upx;

		.type-item {
			height: 120upx;
			padding: 20upx 0;
			display: flex;
			justify-content: space-between;
			align-items: center;
			padding-right: 60upx;
			font-size: 30upx;
			position: relative;
		}

		.icon {
			width: 100upx;
			font-size: 52upx;
		}

		.icon-erjiye-yucunkuan {
			color: #fe8e2e;
		}

		.icon-weixinzhifu {
			color: #36cb59;
		}

		.icon-alipay {
			color: #01aaef;
		}

		.tit {
			font-size: $font-lg;
			color: $font-color-dark;
			margin-bottom: 4upx;
		}

		.con {
			flex: 1;
			display: flex;
			flex-direction: column;
			font-size: $font-sm;
			color: $font-color-light;
		}
	}

	.mix-btn {
		display: flex;
		align-items: center;
		justify-content: center;
		width: 630upx;
		height: 80upx;
		margin: 80upx auto 30upx;
		font-size: $font-lg;
		color: #fff;
		background-color: $base-color;
		border-radius: 10upx;
		box-shadow: 1px 2px 5px rgba(219, 63, 96, 0.4);
	}

2、后端

package com.jbossjf.bootproject.controller;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.jbossjf.bootproject.common.*;
import com.jbossjf.bootproject.model.OrderInfo;
import com.jbossjf.bootproject.model.OrderReturnInfo;
import com.jbossjf.bootproject.model.SignInfo;
import com.thoughtworks.xstream.XStream;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.util.HashMap;
import java.util.Map;

@RestController
public class WeixinController {
    private final Logger L = LoggerFactory.getLogger(WeixinController.class);
    HelpUtils _HelpUtils = new HelpUtils();
    @Autowired
    private HttpServletRequest request;
    @Autowired
    private Environment env;

    //    @Autowired
//    private HttpServletResponse responses;
    @RequestMapping("/wxPay")
    public String wxPay(String openid) {

        try {


        } catch (Exception ex) {
            L.debug(ex.getMessage());
            L.info(ex.getMessage());
            L.error(ex.getMessage());
        }
        return null;
    }

    @RequestMapping("/GetOpenID")
    public String GetOpenID() {
        try {
            String desc = request.getParameter("desc");

            JSonArray jsonArray = JSONArray.parseArray(desc);

            String appid = _HelpUtils.GetJsonArrayValue(jsonArray, "appid");
            String secret = _HelpUtils.GetJsonArrayValue(jsonArray, "secret");
            String code = _HelpUtils.GetJsonArrayValue(jsonArray, "code");
            // String code = request.getParameter("code");
            HttpGet httpGet = new HttpGet("https://api.weixin.qq.com/sns/jscode2session?appid=" + appid + "&secret=" + secret + "&js_code=" + code + "&grant_type=authorization_code");
            //设置请求器的配置
            HttpClient httpClient = HttpClients.createDefault();
            HttpResponse res = httpClient.execute(httpGet);
            HttpEntity entity = res.getEntity();
            String result = EntityUtils.toString(entity, "UTF-8");
            // response.getWriter().append(result);
        } catch (Exception e) {

        }
        return "";
    }

//    @RequestMapping("/WeiXinSign")
@CrossOrigin
@ResponseBody
@RequestMapping(value = "/API/WeiXinSign", method = RequestMethod.POST, produces = "application/json;charset=UTF-8")
    public Map WeiXinSign(@RequestBody JSonObject jsonParam) {
        Map map = new HashMap<>(1);
        try {

            String appid = jsonParam.getString("appid");
            String prepay_id = jsonParam.getString("prepay_id");
            SignInfo signInfo = new SignInfo();
            signInfo.setAppId(appid);
            long time = System.currentTimeMillis() / 1000;
            signInfo.setTimeStamp(String.valueOf(time));
            signInfo.setNonceStr(RandomStringGenerator.getRandomStringByLength(32));
            signInfo.setRepay_id("prepay_id=" + prepay_id);
            signInfo.setSignType("MD5");
            //生成签名
            String sign = Signature.getSign(signInfo);


            map.put("timeStamp", signInfo.getTimeStamp());
            map.put("nonceStr", signInfo.getNonceStr());
            map.put("package", signInfo.getRepay_id());
            map.put("signType", signInfo.getSignType());
            map.put("paySign", sign);
            return map;
        } catch (Exception e) {
            // TODO Auto-generated catch block
            map.remove("prepay_id");
            map.put("prepay_id",  e.getMessage());
            e.printStackTrace();
            L.error("-------", e);
        }
        return map;
    }

//    @RequestMapping("/WeiXinPayResult")
    @CrossOrigin
    @ResponseBody
    @RequestMapping(value = "/API/WeiXinPayResult", method = RequestMethod.POST, produces = "application/json;charset=UTF-8")
    public Map WeiXinPayResult() {
        try {
            // TODO Auto-generated method stub
            //response.getWriter().append("Served at: ").append(request.getContextPath());

            String reqParams = StreamUtil.read(request.getInputStream());
            L.info("-------支付结果:" + reqParams);
            StringBuffer sb = new StringBuffer("SUCCESSOK");
            //return sb.toString();
//            JSonObject json = new JSonObject();
//            json.put("pay_result", sb.toString());
            Map map = new HashMap<>(1);
            map.put("pay_result", sb.toString());
            return map;
            //return json.toString();
        } catch (Exception ex) {
        }
        return null;
    }

//    @RequestMapping("/WeixinXiadan")
@CrossOrigin
@ResponseBody
@RequestMapping(value = "/API/WeixinXiadan", method = RequestMethod.POST, produces = "application/json;charset=UTF-8")
    public Map WeixinXiadan(@RequestBody JSonObject jsonParam) {
        Map map = new HashMap<>(1);
        try {

            String appid = jsonParam.getString("appid");
            String openid = jsonParam.getString("openid");
            String formcode = jsonParam.getString("formcode");
            String money = jsonParam.getString("money");
            String productDesc = jsonParam.getString("productDesc");

            int money_fen = HelpUtils.changeY2F(Double.parseDouble(money));
            //String openid = request.getParameter("openid");
            OrderInfo order = new OrderInfo();
            order.setAppid(appid);
            order.setMch_id(Configure.getMch_id()); //商户号
            order.setNonce_str(RandomStringGenerator.getRandomStringByLength(32));//随机字符串
           // String newbody=new String(productDesc.getBytes("ISO-8859-1"),"UTF-8");//以utf-8编码放入paymentPo，微信支付要求字符编码统一采用UTF-8字符编码
            order.setBody(productDesc);//商品描述s
            order.setOut_trade_no(formcode);//商户系统内部订单号
           // L.info(formcode);
            order.setTotal_fee(money_fen);//订单总金额，单位为分
            //order.setSpbill_create_ip("127.0.0.1");//调用微信支付API的机器IP
            String keyValue = env.getProperty("server.ip");
            order.setNotify_url("https://" + keyValue + "/API/WeiXinPayResult");//异步接收微信支付结果通知的回调地址，通知url必须为外网可访问的url，不能携带参数。
            order.setTrade_type("JSAPI");//交易类型 小程序取值如下：JSAPI
            order.setOpenid(openid);
            order.setSign_type("MD5");

            //生成签名
            String sign = Signature.getSign(order);
            order.setSign(sign);

            //https://api.mch.weixin.qq.com/pay/unifiedorder
            //String body  = new String(order.toString().getBytes("ISO8859-1"),"UTF-8");
            String result = HttpRequest.sendPost("https://api.mch.weixin.qq.com/pay/unifiedorder", order);
            System.out.println(result);
            L.info("---------下单返回:" + result);
            XStream xStream = new XStream();
            xStream.alias("xml", OrderReturnInfo.class);

            OrderReturnInfo returnInfo = (OrderReturnInfo) xStream.fromXML(result);
//            JSonObject json = new JSonObject();
//            json.put("prepay_id", returnInfo.getPrepay_id());//微信生成的预支付会话标识，用于后续接口调用中使用，该值有效期为2小时
//            //response.getWriter().append(json.toJSonString());
//            return json.toString();

            map.put("prepay_id", returnInfo.getPrepay_id());
            return map;
        } catch (Exception e) {
            map.remove("prepay_id");
            map.put("prepay_id",  e.getMessage());
            e.printStackTrace();
            L.error("-------", e);
        }
        return map;

    }

    @RequestMapping("/WeixinSearchOrder")
    public Map WeixinSearchOrder() {
        try {

        } catch (Exception ex) {
        }
        return null;
    }

    @RequestMapping("/GetTestInfo")
    public  Map GetTestInfo() {
        Map map = new HashMap<>(1);
        try {

            map.put("status","test_sucess");

        } catch (Exception ex) {
            map.put("status","test_error");
        }
        return map;
    }
}

package com.jbossjf.bootproject.common;

public class Configure {


	public static String getFile_url() {
		return file_url;
	}

	public static void setFile_url(String file_url) {
		Configure.file_url = file_url;
	}

	public static String getFile_path() {
		return file_path;
	}

	public static void setFile_path(String file_path) {
		Configure.file_path = file_path;
	}

	//上传文件
	private static  String file_url = "http://localhost:8066";
	private static  String file_path = "d:/upload/cover";

	public static String getImg_path() {
		return img_path;
	}

	public static void setImg_path(String img_path) {
		Configure.img_path = img_path;
	}

	private static  String img_path = "d:/upload/image";

   //小程序ID
   private static String appID = "5555555";//"你的小程序id";
	private static String secret = "66666";//"你的小程序的secret";
	//商户号
	private static String mch_id = "333";//"你的商户号";
	private static String key = "55555555";//"你的商户的api秘钥";
	//


	public static String getSecret() {
		return secret;
	}

	public static void setSecret(String secret) {
		Configure.secret = secret;
	}

	public static String getKey() {
		return key;
	}

	public static void setKey(String key) {
		Configure.key = key;
	}

	public static String getAppID() {
		return appID;
	}

	public static void setAppID(String appID) {
		Configure.appID = appID;
	}

	public static String getMch_id() {
		return mch_id;
	}

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

}

package com.jbossjf.bootproject.common;

import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.thoughtworks.xstream.annotations.XStreamAlias;



public class Signature {
	private static final Logger L = LoggerFactory.getLogger(Signature.class);
	
    public static String getSign(Object o) throws IllegalAccessException {
        ArrayList list = new ArrayList();
        Class cls = o.getClass();
        Field[] fields = cls.getDeclaredFields();
        for (Field f : fields) {
            f.setAccessible(true);
            if (f.get(o) != null && f.get(o) != "") {
            	String name = f.getName();
            	XStreamAlias anno = f.getAnnotation(XStreamAlias.class);
            	if(anno != null)
            		name = anno.value();
                list.add(name + "=" + f.get(o) + "&");
            }
        }
        int size = list.size();
        String [] arrayToSort = list.toArray(new String[size]);
        Arrays.sort(arrayToSort, String.CASE_INSENSITIVE_ORDER);
        StringBuilder sb = new StringBuilder();
        for(int i = 0; i < size; i ++) {
            sb.append(arrayToSort[i]);
        }
        String result = sb.toString();
        result += "key=" + Configure.getKey();
        System.out.println("签名数据："+result);
        result = MD5.MD5Encode(result).toUpperCase();
        return result;
    }

    public static String getSign(Map map){
        ArrayList list = new ArrayList();
        for(Map.Entry entry:map.entrySet()){
            if(entry.getValue()!=""){
                list.add(entry.getKey() + "=" + entry.getValue() + "&");
            }
        }
        int size = list.size();
        String [] arrayToSort = list.toArray(new String[size]);
        Arrays.sort(arrayToSort, String.CASE_INSENSITIVE_ORDER);
        StringBuilder sb = new StringBuilder();
        for(int i = 0; i < size; i ++) {
            sb.append(arrayToSort[i]);
        }
        String result = sb.toString();
        result += "key=" + Configure.getKey();
        //Util.log("Sign Before MD5:" + result);
        result = MD5.MD5Encode(result).toUpperCase();
        //Util.log("Sign Result:" + result);
        return result;
    }

    

}

package com.jbossjf.bootproject.common;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.UnrecoverableKeyException;
import java.security.cert.CertificateException;

import javax.net.ssl.SSLContext;
import javax.net.ssl.X509TrustManager;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
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.HttpClients;
import org.apache.http.util.EntityUtils;

import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.xml.DomDriver;
import com.thoughtworks.xstream.io.xml.XmlFriendlyNameCoder;

public class HttpRequest {
	//连接超时时间，默认10秒
    private static final int socketTimeout = 10000;

    //传输超时时间，默认30秒
    private static final int connectTimeout = 30000;
	
	public static String sendPost(String url, Object xmlObj) throws ClientProtocolException, IOException, UnrecoverableKeyException, KeyManagementException, KeyStoreException, NoSuchAlgorithmException {
		

        
		HttpPost httpPost = new HttpPost(url);
		//解决XStream对出现双下划线的bug
        XStream xStreamForRequestPostData = new XStream(new DomDriver("UTF-8", new XmlFriendlyNameCoder("-_", "_")));
        xStreamForRequestPostData.alias("xml", xmlObj.getClass());
        //将要提交给API的数据对象转换成XML格式数据Post给API
        String postDataXML = xStreamForRequestPostData.toXML(xmlObj);

        //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
        StringEntity postEntity = new StringEntity(postDataXML, "UTF-8");
        httpPost.addHeader("Content-Type", "text/xml");
        httpPost.setEntity(postEntity);

        //设置请求器的配置
        RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(socketTimeout).setConnectTimeout(connectTimeout).build();
        httpPost.setConfig(requestConfig);
        
        HttpClient httpClient = HttpClients.createDefault();
        HttpResponse response = httpClient.execute(httpPost);
        HttpEntity entity = response.getEntity();
        String result = EntityUtils.toString(entity, "UTF-8");
        return result;
	}
	
	public static class MyX509TrustManager implements X509TrustManager {
		@Override
		public void checkClientTrusted(
				java.security.cert.X509Certificate[] arg0, String arg1)
				throws CertificateException {
			// TODO Auto-generated method stub
			
		}
		@Override
		public void checkServerTrusted(
				java.security.cert.X509Certificate[] arg0, String arg1)
				throws CertificateException {
			// TODO Auto-generated method stub
			
		}
		@Override
		public java.security.cert.X509Certificate[] getAcceptedIssuers() {
			// TODO Auto-generated method stub
			return null;
		}
      }
}

package com.jbossjf.bootproject.common;

import java.security.MessageDigest;


public class MD5 {
    private final static String[] hexDigits = {"0", "1", "2", "3", "4", "5", "6", "7",
            "8", "9", "a", "b", "c", "d", "e", "f"};

    
    public static String byteArrayToHexString(byte[] b) {
        StringBuilder resultSb = new StringBuilder();
        for (byte aB : b) {
            resultSb.append(byteToHexString(aB));
        }
        return resultSb.toString();
    }

    
    private static String byteToHexString(byte b) {
        int n = b;
        if (n < 0) {
            n = 256 + n;
        }
        int d1 = n / 16;
        int d2 = n % 16;
        return hexDigits[d1] + hexDigits[d2];
    }

    
    public static String MD5Encode(String origin) {
        String resultString = null;
        try {
            resultString = origin;
            MessageDigest md = MessageDigest.getInstance("MD5");
            resultString = byteArrayToHexString(md.digest(resultString.getBytes()));
        } catch (Exception e) {
            e.printStackTrace();
        }
        return resultString;
    }

}

package com.jbossjf.bootproject.common;

import java.io.ByteArrayOutputStream;
import java.io.InputStream;

public class StreamUtil {
	public static String read(InputStream is){
		try {
			ByteArrayOutputStream baos = new ByteArrayOutputStream();
			int len = 0;
			byte[] buffer = new byte[512];
			while((len = is.read(buffer)) != -1){
				baos.write(buffer, 0, len);
			}
			return new String(baos.toByteArray(), 0, baos.size(), "utf-8");
		}catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return "";
	}
}

package com.jbossjf.bootproject.common;

import java.util.Random;


public class RandomStringGenerator {
	
    public static String getRandomStringByLength(int length) {
        String base = "abcdefghijklmnopqrstuvwxyz0123456789";
        Random random = new Random();
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < length; i++) {
            int number = random.nextInt(base.length());
            sb.append(base.charAt(number));
        }
        return sb.toString();
    }
}