Java实现⼩程序⽀付（⽀付，提现，退款）1.添加WXpayCommon类⽤以具体实现功能，代码如下：
1package com.karat.wxCommon;
2
3import java.io.IOException;
4import java.util.HashMap;
5import java.util.Map;
6
7import com.karat.util.WXPay;
8import com.karat.util.WXPayConfigImpl;
9import com.karat.util.WXPayConstants;
10import com.karat.util.WXPayUtil;
11import com.karat.vo.VoUnifiedOrderWx;
12
13/**
14 * ⽀付，提现，退款
15 * @author开发
16 *
17*/
18public class WXpayCommon {
19
20private static WXPay wxpay;
21private static WXPayConfigImpl config;
22
23
24public static void WXpayCommonIns() throws Exception {
25 config = Instance();
26 wxpay = new WXPay(config);
27 }
28
29/**
30 * ⽀付
31 * @param orderInfo ⾃⼰数据库⽣成的订单
32 * @param openid ⽤户的标识openId
33 * @param ip
34 * @param flag
35 * @return
36 * @throws IOException
37*/
38public static VoUnifiedOrderWx payOrderWx(WxWithdrawOrder orderInfo, String openid, String ip, boolean flag) throws IOException { 39 VoUnifiedOrderWx voUnifiedOrderWx = null;
40try {
41 Map<String, String> respData = null;
42if (flag) {
43 HashMap<String, String> data = new HashMap<String, String>();
44 data.put("body", OrderNo());
45 data.put("out_trade_no", OrderNo());//订单号
46 data.put("fee_type", "CNY");
47 data.put("total_fee", "1");//⽀付⾦额（分）
48 data.put("spbill_create_ip", ip);
49 data.put("notify_url", "******************");//⽀付成功回调地址
50// 交易类型--JSAPI：⽀付、NATIVE：原⽣扫码⽀付、APP:APP⽀付
51// ⽀付
52 data.put("trade_type", "JSAPI");//⽀付⽅式
53// 设备号--⾃定义参数，可以为终端设备号(门店号或收银设备ID)，PC⽹页或内⽀付可以传"WEB"
54 data.put("device_info", "WEB");
55// ⽤户openid
56 data.put("openid", openid);
57 data.put("product_id", "1000" + "");
58
59if (null == wxpay) {
60 WXpayCommonIns();
61 }
62 respData = wxpay.unifiedOrder(data);//统⼀下单
63 orderInfo.setRemark(respData);
64 } else {
65 respData = Remark();
66 }
67 System.out.println(respData);
68// 返回状态码
69 String return_code = ("return_code");
70if (return_code.equals(WXPayConstants.SUCCESS)) {
71// 业务结果
72 String result_code = ("result_code");
73if (result_code.equals(WXPayConstants.SUCCESS)) {
74 voUnifiedOrderWx = new VoUnifiedOrderWx();
75// 时间戳
76 voUnifiedOrderWx.setTimeStamp(BaseToolsUtil.systemtimeLong()/1000 + "");
77// 随机串
78 voUnifiedOrderWx.("nonce_str"));
79// 数据包
80 voUnifiedOrderWx.setPackageValue("prepay_id=" + ("prepay_id"));
81
82// ⼆次签名
83 HashMap<String, String> dataPay = new HashMap<String, String>();
84 dataPay.put("appId", ("appid"));
85 dataPay.put("nonceStr", NonceStr());
86 dataPay.put("package", PackageValue());
87 dataPay.put("timeStamp", TimeStamp());
88 dataPay.put("signType", "MD5");
89 String sign = ateSignature(dataPay, Key());
90// 签名
91 voUnifiedOrderWx.setSign(sign);
92 }
93 }
94 } catch (Exception e) {
95 e.printStackTrace();
96 }
97return voUnifiedOrderWx;
98 }
99
100
101/**
102 * 企业付款(提现)
103 * @param wxWithdrawOrder
104 * @param openid
105 * @param ip
106 * @throws Exception
107*/
108public static void transfers(WxWithdrawOrder wxWithdrawOrder, String openid, String ip) throws Exception { 109 HashMap<String, String> data = new HashMap<String, String>();
110// 商户订单号
111 data.put("partner_trade_no", OrderNo());
112// ⽤户openid
113 data.put("openid", openid);
114// 校验⽤户姓名选项
115 data.put("check_name", "NO_CHECK");
116// ⾦额
117 data.put("amount", Money() + "");
118// 企业付款描述信息
119// TODO
120 data.put("desc", "提现");
121// Ip地址
122 data.put("spbill_create_ip", ip);
123
124if (null == wxpay) {
125 WXpayCommonIns();
125 WXpayCommonIns();
126 }
127 String respXml = ansfers(data);//企业付款
128 System.out.println(respXml);
129 Map<String, String> respData = lToMap(respXml);
130 wxWithdrawOrder.setRemark(respData);
131 wxWithdrawOrder.setRemark2(respXml);
132// 返回状态码
133 String return_code = ("return_code");
134 System.out.println(return_code);
135if (return_code.equals(WXPayConstants.SUCCESS)) {
136// 业务结果处理
137 }
138 }
139
140
141/**
142 * @description：退款业务封装(⽀付押⾦退还);
143 * @param PayLog order:⽀付订单信息
144 * Double refundAmount：退款⾦额
145 * @return退款接⼝返回数据 true 退款成功 false 退款失败
146 * @author:FanHaoJian
147 * @throws Exception
148*/
149public static Boolean refundOrder(WxWithdrawOrder orderInfo,Double refundAmount) throws Exception{ 150if (null == wxpay) {
151 WXpayCommonIns();
152 }
153 HashMap<String, String> data = new HashMap<String, String>();
154 data.put("out_trade_no", OrderNo());
155 data.put("out_refund_no", OrderNo());
156 data.put("total_fee", "1000");//价钱分
157 data.put("refund_fee", String.valueOf((int)(refundAmount*100)));
158 data.put("refund_fee_type", "CNY");
159 data.put("op_user_id", MchID());
160try {
161 Map<String, String> r = fund(data);//订单退款
162 System.out.println(r);
163return Boolean.TRUE;
164 } catch (Exception e) {
165 e.printStackTrace();
166 }
167return Boolean.FALSE;
168 }
169
170 }
View Code
2.接⼝⼤概内容如下:
1package com.karat.action;
2
3import java.io.BufferedOutputStream;
4import java.io.ByteArrayOutputStream;
5import java.io.IOException;
6import java.io.InputStream;
7import java.util.HashMap;
8import java.util.Map;
9
10import javax.servlet.http.HttpServletRequest;
11import javax.servlet.http.HttpServletResponse;
12
13import org.springframework.stereotype.Controller;
14import org.springframework.web.bind.annotation.RequestMapping;
14import org.springframework.web.bind.annotation.RequestMapping;
15
16import com.karat.util.WXPayConfigImpl;
17import com.karat.util.WXPayConstants;
18import com.karat.util.WXPayUtil;
19import com.karat.wxCommon.IpAddressUtil;
20import com.karat.wxCommon.WXpayCommon;
21import com.karat.wxCommon.WxWithdrawOrder;
22/**
23 * 接⼝模板
24 * @author开发
25 *
26*/
27 @Controller
28 @RequestMapping("wx")
29public class WxPayAction {
30
31private HttpServletRequest request;
32private HttpServletResponse response;
33private WXPayConfigImpl config;
34/**
35 * ⽀付
36 * @return
37*/
38 @RequestMapping("/pay")
39public String pay(){
40 Map<String, String> remark=new HashMap<String, String>();
41//新建订单
42 WxWithdrawOrder order=new WxWithdrawOrder("1","1",1,"1","1",remark,"");
43try {
44 WXpayCommon.payOrderWx(order, "⽤户openId",IpAddr(request), true);
45 } catch (IOException e) {
46// TODO Auto-generated catch block
47 e.printStackTrace();
48 }
49return "";
50 }
51/**
52 * 回调接⼝notify（⽀付填写的⽀付成功回调地址）
53 * @throws Exception
54*/
55 @RequestMapping("/notifyPayWx")
56public void notifyPayWx() throws Exception {
57boolean state = false;
58 System.out.println("回调");
59 InputStream inStream = InputStream();
60 ByteArrayOutputStream outSteam = new ByteArrayOutputStream();
61byte[] buffer = new byte[1024];
62int len = 0;
63while ((len = ad(buffer)) != -1) {
64 outSteam.write(buffer, 0, len);
65 }
66 outSteam.close();
67 inStream.close();
68 String resultXml = new ByteArray(), "utf-8");
69 System.out.println("resultXml:" + resultXml);
70 Map<String, String> resultMap = lToMap(resultXml);
71// 签名验证
72if (WXPayUtil.isSignatureValid(resultXml, Key())) {
73 String resXml = "";
74// 业务结果
75 String result_code = ("result_code");
76if (result_code.equals(WXPayConstants.SUCCESS)) {
77// 订单号
78//String out_trade_no = ("out_trade_no");
79// ⽀付成功处理业务逻辑
79// ⽀付成功处理业务逻辑
80 state =true;//根据订单号查询⾃⼰数据库该条数据进⾏业务操作，操作成功返回true
81 }
82if (state) {
83//通知.异步确认成功.必写.不然会⼀直通知后台.⼋次之后就认为交易失败了.
84 resXml = "<xml>" + "<return_code><![CDATA[SUCCESS]]></return_code>"
85 + "<return_msg><![CDATA[OK]]></return_msg>" + "</xml> ";
86 } else {
87 resXml = "<xml>" + "<return_code><![CDATA[FAIL]]></return_code>"
88 + "<return_msg><![CDATA[报⽂为空]]></return_msg>" + "</xml> ";
89 }
90 System.out.println("resXml:" + resultXml);
91 BufferedOutputStream out = new OutputStream());
92 out.Bytes());
93 out.flush();
94 out.close();
95 } else {
96// 签名验证失败
97 System.out.println("签名验证失败");
98 }
99 }
100
101/**
102 * 退款
103 * @return
104*/
105 @RequestMapping("/returnPay")
106public String returnPay(){
107 Map<String, String> remark=new HashMap<String, String>();
108//新建订单
109 WxWithdrawOrder order=new WxWithdrawOrder("1","1",1,"1","1",remark,"");
110try {
111 fundOrder(order,0.01);
112 } catch (Exception e) {
113// TODO Auto-generated catch block
114 e.printStackTrace();
115 }
116return "";
117 }
118/**
119 * 提现
120 * @return
121*/
122 @RequestMapping("/withdrawDeposit")
入门的java游戏小程序123public String withdrawDeposit(){
124 Map<String, String> remark=new HashMap<String, String>();
125//新建订单
126 WxWithdrawOrder order=new WxWithdrawOrder("1","1",1,"1","1",remark,"");
127try {
128 ansfers(order,"⽤户openId", "服务器地址");
129 } catch (Exception e) {
130// TODO Auto-generated catch block
131 e.printStackTrace();
132 }
133return "";
134 }
135public HttpServletRequest getRequest() {
136return request;
137 }
138public void setRequest(HttpServletRequest request) {
140 }
141public HttpServletResponse getResponse() {
142return response;
143 }
144public void setResponse(HttpServletResponse response) {
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