微信支付（JSAPI） - Java

Posted 2020-07-19

最近客栈订房，当然是需要微信支付的，官方微信支付文档什么的，只想说 去你妈的文档

so, 经过两天不懈的努力和网上大牛文档，终于做出来了，下面具体来说说，希望能对各位看客有点帮助

 

放大招，直接上代码

1. Configure.java 文件

  1 package com.kzb.website.core.wechat.common;
  2 
  3 import java.util.Calendar;
  4 import java.util.Date;
  5 
  6 import org.apache.commons.lang3.StringUtils;
  7 
  8 public class Configure {
  9 
 10     private static String token = null;
 11     private static Date tokenTime = null;
 12     private static String jsapiTicket = null;
 13     private static Date jsapiTicketTime = null;
 14 
 15     public static String MD5 = "MD5";
 16     public static String EMPTY = "";
 17     public static String SUCCESS = "SUCCESS";
 18     public static String HEX_FORMAT = "%02x";
 19     public static String TRADE_TYPE = "JSAPI";
 20     public static String MIDDLE_LINE = "-";
 21     public static String CHARTSET_UTF8 = "UTF-8";
 22 
 23     public static String NOTIFY_SUCCESS = "<xml>\\n<return_code><![CDATA[SUCCESS]]></return_code>\\n<return_msg><![CDATA[OK]]></return_msg>\\n</xml>";
 24     public static String NOTIFY_FAIL = "<xml>\\n<return_code><![CDATA[FAIL]]></return_code>\\n<return_msg><![CDATA[ERROR]]></return_msg>\\n</xml>";
 25 
 26     private static String key = "API密钥(32位，在微信商户平台下的API安全栏下)";
 27     // 微信分配的公众号ID（开通公众号之后可以获取到）
 28     private static String appID = "XXXXXXXXXXXXXX";
 29     private static String appSecret = "XXXXXXXXXXXXXX";
 30     // 微信支付分配的商户号ID（开通公众号的微信支付功能之后可以获取到）
 31     private static String mchID = "1349019501";
 32     // 机器IP
 33     private static String ip = "127.0.0.1";
 34 
 35     // 以下是几个API的路径：
 36     // 统一下单
 37     public static String UNIFIEDORDER_API = "https://api.mch.weixin.qq.com/pay/unifiedorder";
 38     //  access_token API
 39     public static String TOKEN_API = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential";
 40     // 临时票据API
 41     public static String TICKET_API = "https://api.weixin.qq.com/cgi-bin/ticket/getticket";
 42     // 微信OPENID API
 43     public static String OPENID_API = "https://api.weixin.qq.com/sns/oauth2/access_token";
 44 
 45     public static void setKey(String key) {
 46         Configure.key = key;
 47     }
 48 
 49     public static void setAppID(String appID) {
 50         Configure.appID = appID;
 51     }
 52 
 53     public static void setMchID(String mchID) {
 54         Configure.mchID = mchID;
 55     }
 56 
 57     public static void setIp(String ip) {
 58         Configure.ip = ip;
 59     }
 60 
 61     public static String getKey(){
 62         return key;
 63     }
 64     
 65     public static String getAppid(){
 66         return appID;
 67     }
 68     
 69     public static String getMchid(){
 70         return mchID;
 71     }
 72 
 73     public static String getIP(){
 74         return ip;
 75     }
 76 
 77     public static String getAppSecret() {
 78         return appSecret;
 79     }
 80 
 81     public static void setAppSecret(String appSecret) {
 82         Configure.appSecret = appSecret;
 83     }
 84 
 85     public static String getToken() {
 86         return token;
 87     }
 88 
 89     public static void setToken(String token) {
 90         Configure.token = token;
 91         Configure.tokenTime = new Date();
 92     }
 93 
 94     public static String getJsapiTicket() {
 95         return jsapiTicket;
 96     }
 97 
 98     public static void setJsapiTicket(String jsapiTicket) {
 99         Configure.jsapiTicket = jsapiTicket;
100         Configure.jsapiTicketTime = new Date();
101     }
102 
103     public static boolean checkToken() {
104         if (!StringUtils.isEmpty(Configure.token)) {
105             Calendar calendar = Calendar.getInstance();
106             calendar.setTime(tokenTime);
107             calendar.add(Calendar.SECOND, 7200);
108             return calendar.before(new Date());
109         }
110         return true;
111     }
112 
113     public static boolean checkJsapiTicket() {
114         if (!StringUtils.isEmpty(Configure.jsapiTicket)) {
115             Calendar calendar = Calendar.getInstance();
116             calendar.setTime(jsapiTicketTime);
117             calendar.add(Calendar.SECOND, 7200);
118             return calendar.before(new Date());
119         }
120         return true;
121     }
122 }

View Code

 

2. SignMD5.java文件

 1 package com.kzb.website.core.wechat.common;
 2 
 3 import java.io.UnsupportedEncodingException;
 4 import java.security.MessageDigest;
 5 import java.security.NoSuchAlgorithmException;
 6 import java.util.Formatter;
 7 import java.util.UUID;
 8 
 9 import org.springframework.security.crypto.password.PasswordEncoder;
10 
11 public class SignMD5 implements PasswordEncoder {
12     public static String byteToHex(final byte[] hash) {
13         Formatter formatter = new Formatter();
14         for (byte b : hash) {
15             formatter.format(Configure.HEX_FORMAT, b);
16         }
17         String result = formatter.toString();
18         formatter.close();
19         return result;
20     }
21 
22     @Override
23     public String encode(CharSequence charSequence) {
24         try {
25             MessageDigest crypt = MessageDigest.getInstance(Configure.MD5);
26             crypt.reset();
27             crypt.update(charSequence.toString().getBytes(Configure.CHARTSET_UTF8));
28             return byteToHex(crypt.digest());
29         } catch (NoSuchAlgorithmException e) {
30             e.printStackTrace();
31         } catch (UnsupportedEncodingException e) {
32             e.printStackTrace();
33         }
34         return Configure.EMPTY;
35     }
36 
37     @Override
38     public boolean matches(CharSequence charSequence, String encodedPassword) {
39         return encode(charSequence).equals(encodedPassword);
40     }
41 
42     public String createNonceStr() {
43         return UUID.randomUUID().toString().replaceAll(Configure.MIDDLE_LINE,Configure.EMPTY);
44     }
45 
46     public String createTimeStamp() {
47         return Long.toString(System.currentTimeMillis() / 1000);
48     }
49 
50 }

View Code

 

3. WechatNotify.java文件

  1 package com.kzb.website.core.wechat.common;
  2 
  3 import java.io.Serializable;
  4 
  5 import javax.xml.bind.annotation.XmlRootElement;
  6 
  7 @XmlRootElement(name="xml")
  8 public class WechatNotify implements Serializable{
  9 
 10     private static final long serialVersionUID = 8047707600433551023L;
 11     private String appid;
 12     private String attach;
 13     private String bank_type;
 14     private String fee_type;
 15     private String is_subscribe;
 16     private String mch_id;
 17     private String nonce_str;
 18     private String openid;
 19     private String out_trade_no;
 20     private String result_code;
 21     private String return_code;
 22     private String sign;
 23     private String sub_mch_id;
 24     private String time_end;
 25     private String total_fee;
 26     private String trade_type;
 27     private String transaction_id;
 28 
 29     public String getAppid() {
 30         return appid;
 31     }
 32 
 33     public void setAppid(String appid) {
 34         this.appid = appid;
 35     }
 36 
 37     public String getAttach() {
 38         return attach;
 39     }
 40 
 41     public void setAttach(String attach) {
 42         this.attach = attach;
 43     }
 44 
 45     public String getBank_type() {
 46         return bank_type;
 47     }
 48 
 49     public void setBank_type(String bank_type) {
 50         this.bank_type = bank_type;
 51     }
 52 
 53     public String getFee_type() {
 54         return fee_type;
 55     }
 56 
 57     public void setFee_type(String fee_type) {
 58         this.fee_type = fee_type;
 59     }
 60 
 61     public String getIs_subscribe() {
 62         return is_subscribe;
 63     }
 64 
 65     public void setIs_subscribe(String is_subscribe) {
 66         this.is_subscribe = is_subscribe;
 67     }
 68 
 69     public String getMch_id() {
 70         return mch_id;
 71     }
 72 
 73     public void setMch_id(String mch_id) {
 74         this.mch_id = mch_id;
 75     }
 76 
 77     public String getNonce_str() {
 78         return nonce_str;
 79     }
 80 
 81     public void setNonce_str(String nonce_str) {
 82         this.nonce_str = nonce_str;
 83     }
 84 
 85     public String getOpenid() {
 86         return openid;
 87     }
 88 
 89     public void setOpenid(String openid) {
 90         this.openid = openid;
 91     }
 92 
 93     public String getOut_trade_no() {
 94         return out_trade_no;
 95     }
 96 
 97     public void setOut_trade_no(String out_trade_no) {
 98         this.out_trade_no = out_trade_no;
 99     }
100 
101     public String getResult_code() {
102         return result_code;
103     }
104 
105     public void setResult_code(String result_code) {
106         this.result_code = result_code;
107     }
108 
109     public String getReturn_code() {
110         return return_code;
111     }
112 
113     public void setReturn_code(String return_code) {
114         this.return_code = return_code;
115     }
116 
117     public String getSign() {
118         return sign;
119     }
120 
121     public void setSign(String sign) {
122         this.sign = sign;
123     }
124 
125     public String getSub_mch_id() {
126         return sub_mch_id;
127     }
128 
129     public void setSub_mch_id(String sub_mch_id) {
130         this.sub_mch_id = sub_mch_id;
131     }
132 
133     public String getTime_end() {
134         return time_end;
135     }
136 
137     public void setTime_end(String time_end) {
138         this.time_end = time_end;
139     }
140 
141     public String getTotal_fee() {
142         return total_fee;
143     }
144 
145     public void setTotal_fee(String total_fee) {
146         this.total_fee = total_fee;
147     }
148 
149     public String getTrade_type() {
150         return trade_type;
151     }
152 
153     public void setTrade_type(String trade_type) {
154         this.trade_type = trade_type;
155     }
156 
157     public String getTransaction_id() {
158         return transaction_id;
159     }
160 
161     public void setTransaction_id(String transaction_id) {
162         this.transaction_id = transaction_id;
163     }
164 }

View Code

 

4. WechatPayModel.java文件

  1 package com.kzb.website.core.wechat.common;
  2 
  3 import javax.xml.bind.annotation.XmlRootElement;
  4 
  5 import org.springframework.security.crypto.password.PasswordEncoder;
  6 
  7 @XmlRootElement(name = "XML")
  8 public class WechatPayModel {
  9 
 10     private String appid;
 11     private String mch_id;
 12     private String nonce_str;
 13     private String body;
 14     private String out_trade_no;
 15     private String total_fee;
 16     private String spbill_create_ip;
 17     private String notify_url;
 18     private String trade_type;
 19     private String openid;
 20     private String sign;
 21 
 22     public String getAppid() {
 23         return appid;
 24     }
 25 
 26     public void setAppid(String appid) {
 27         this.appid = appid;
 28     }
 29 
 30     public String getMch_id() {
 31         return mch_id;
 32     }
 33 
 34     public void setMch_id(String mch_id) {
 35         this.mch_id = mch_id;
 36     }
 37 
 38     public String getNonce_str() {
 39         return nonce_str;
 40     }
 41 
 42     public void setNonce_str(String nonce_str) {
 43         this.nonce_str = nonce_str;
 44     }
 45 
 46     public String getOut_trade_no() {
 47         return out_trade_no;
 48     }
 49 
 50     public void setOut_trade_no(String out_trade_no) {
 51         this.out_trade_no = out_trade_no;
 52     }
 53 
 54     public String getTotal_fee() {
 55         return total_fee;
 56     }
 57 
 58     public void setTotal_fee(String total_fee) {
 59         this.total_fee = total_fee;
 60     }
 61 
 62     public String getSpbill_create_ip() {
 63         return spbill_create_ip;
 64     }
 65 
 66     public void setSpbill_create_ip(String spbill_create_ip) {
 67         this.spbill_create_ip = spbill_create_ip;
 68     }
 69 
 70     public String getNotify_url() {
 71         return notify_url;
 72     }
 73 
 74     public void setNotify_url(String notify_url) {
 75         this.notify_url = notify_url;
 76     }
 77 
 78     public String getTrade_type() {
 79         return trade_type;
 80     }
 81 
 82     public void setTrade_type(String trade_type) {
 83         this.trade_type = trade_type;
 84     }
 85 
 86     public String getBody() {
 87         return body;
 88     }
 89 
 90     public void setBody(String body) {
 91         this.body = body;
 92     }
 93 
 94     public String getSign() {
 95         return sign;
 96     }
 97 
 98     public void setSign(String sign) {
 99         this.sign = sign;
100     }
101 
102     public String getOpenid() {
103         return openid;
104     }
105 
106     public void setOpenid(String openid) {
107         this.openid = openid;
108     }
109 
110     public void sign(PasswordEncoder encoder) {
111         StringBuilder stringBuilder = new StringBuilder();
112         stringBuilder.append("appid=").append(getAppid());
113         stringBuilder.append("&body=").append(getBody());
114         stringBuilder.append("&mch_id=").append(getMch_id());
115         stringBuilder.append("&nonce_str=").append(getNonce_str());
116         stringBuilder.append("&notify_url=").append(getNotify_url());
117         stringBuilder.append("&openid=").append(getOpenid());
118         stringBuilder.append("&out_trade_no=").append(getOut_trade_no());
119         stringBuilder.append("&spbill_create_ip=").append(getSpbill_create_ip());
120         stringBuilder.append("&total_fee=").append(getTotal_fee());
121         stringBuilder.append("&trade_type=").append(getTrade_type());
122         stringBuilder.append("&key=").append(Configure.getKey());
123         this.sign = encoder.encode(stringBuilder.toString());
124     }
125 
126     @Override
127     public String toString() {
128         return "<xml>" +
129                 "<appid><![CDATA[" + appid + "]]></appid>" +
130                 "<body><![CDATA[" + body + "]]></body>" +
131                 "<mch_id><![CDATA[" + mch_id + "]]></mch_id>" +
132                 "<nonce_str><![CDATA[" + nonce_str + "]]></nonce_str>" +
133                 "<notify_url><![CDATA[" + notify_url + "]]></notify_url>" +
134                 "<openid><![CDATA[" + openid + "]]></openid>" +
135                 "<out_trade_no><![CDATA[" + out_trade_no + "]]></out_trade_no>" +
136                 "<spbill_create_ip><![CDATA[" + spbill_create_ip + "]]></spbill_create_ip>" +
137                 "<trade_type><![CDATA[" + trade_type + "]]></trade_type>" +
138                 "<total_fee><![CDATA[" + total_fee + "]]></total_fee>" +
139                 "<sign><![CDATA[" + sign + "]]></sign>" +
140                 "</xml>";
141     }
142 }

View Code

 

5. WechatUtil.java文件

 1 package com.kzb.website.core.wechat.common;
 2 
 3 import java.io.DataInputStream;
 4 import java.io.IOException;
 5 
 6 import javax.servlet.http.HttpServletRequest;
 7 
 8 import com.kzb.website.core.utils.XMLUtil;
 9 
10 public class WechatUtil {
11 
12     /**
13      * 微信回调成功后 将 xml 转换为  WechatNotify 对象
14      * 
15      * @param request
16      * @return WechatNotify 对象
17      */
18     public static WechatNotify getNotifyBean(HttpServletRequ