公众号支付

.gitignore

@@ -19,3 +19,4 @@ target
 sw-pom.xml
 *.iml
 test-config.xml
+.idea

weixin-java-common/src/main/java/me/chanjar/weixin/common/util/crypto/SHA1.java

@@ -1,5 +1,7 @@
 package me.chanjar.weixin.common.util.crypto;
 
+import org.apache.commons.codec.digest.DigestUtils;
+
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.util.Arrays;
@@ -21,7 +23,7 @@ public static String gen(String... arr) throws NoSuchAlgorithmException {
     for (String a : arr) {
       sb.append(a);
     }
-    return genStr(sb.toString());
+    return DigestUtils.sha1Hex(sb.toString());
   }
 
   /**
@@ -40,25 +42,6 @@ public static String genWithAmple(String... arr) throws NoSuchAlgorithmException
         sb.append('&');
       }
     }
-    return genStr(sb.toString());
-  }
-
-  public static String genStr(String str) throws NoSuchAlgorithmException {
-    MessageDigest sha1 = MessageDigest.getInstance("SHA1");
-    sha1.update(str.getBytes());
-    byte[] output = sha1.digest();
-    return bytesToHex(output);
+    return DigestUtils.sha1Hex(sb.toString());
   }
-
-  protected static String bytesToHex(byte[] b) {
-    char hexDigit[] = { '0', '1', '2', '3', '4', '5', '6', '7',
-        '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
-    StringBuffer buf = new StringBuffer();
-    for (int j = 0; j < b.length; j++) {
-      buf.append(hexDigit[(b[j] >> 4) & 0x0f]);
-      buf.append(hexDigit[b[j] & 0x0f]);
-    }
-    return buf.toString();
-  }
-
-}
+ }

weixin-java-common/src/main/java/me/chanjar/weixin/common/util/crypto/WxCryptUtil.java

@@ -14,6 +14,7 @@
 package me.chanjar.weixin.common.util.crypto;
 
 import org.apache.commons.codec.binary.Base64;
+import org.apache.commons.codec.digest.DigestUtils;
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 import org.xml.sax.InputSource;
@@ -27,8 +28,7 @@
 import java.io.StringReader;
 import java.nio.charset.Charset;
 import java.security.NoSuchAlgorithmException;
-import java.util.Arrays;
-import java.util.Random;
+import java.util.*;
 
 public class WxCryptUtil {
 
@@ -224,6 +224,36 @@ public String decrypt(String cipherText) {
 
   }
 
+    /**
+     * 微信公众号支付签名算法(详见:http://pay.weixin.qq.com/wiki/doc/api/index.php?chapter=4_3)
+     * @param packageParams 原始参数
+     * @param signKey 加密Key(即 商户Key)
+     * @param charset 编码
+     * @return 签名字符串
+     */
+    public static String createSign(Map<String, String> packageParams, String signKey) {
+        SortedMap<String, String> sortedMap = new TreeMap<String, String>();
+        sortedMap.putAll(packageParams);
+
+        List<String> keys = new ArrayList<String>(packageParams.keySet());
+        Collections.sort(keys);
+
+
+        StringBuffer toSign = new StringBuffer();
+        for (String key : keys) {
+            String value = packageParams.get(key);
+            if (null != value && !"".equals(value) && !"sign".equals(key)
+                    && !"key".equals(key)) {
+                toSign.append(key + "=" + value + "&");
+            }
+        }
+        toSign.append("key=" + signKey);
+        System.out.println(toSign.toString());
+        String sign = DigestUtils.md5Hex(toSign.toString())
+                .toUpperCase();
+        return sign;
+    }
+
   /**
    * 将一个数字转换成生成4个字节的网络字节序bytes数组
    *

weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpConfigStorage.java

@@ -50,6 +50,10 @@ public interface WxMpConfigStorage {
 
   public String getSecret();
 
+    public String getPartnerId();
+
+    public String getPartnerKey();
+
   public String getToken();
 
   public String getAesKey();

weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpInMemoryConfigStorage.java

@@ -11,6 +11,8 @@ public class WxMpInMemoryConfigStorage implements WxMpConfigStorage {
 
   protected volatile String appId;
   protected volatile String secret;
+    protected volatile String partnerId;
+    protected volatile String partnerKey;
   protected volatile String token;
   protected volatile String accessToken;
   protected volatile String aesKey;
@@ -168,6 +170,8 @@ public String toString() {
         "appId='" + appId + '\'' +
         ", secret='" + secret + '\'' +
         ", token='" + token + '\'' +
+        ", partnerId='" + partnerId + '\'' +
+        ", partnerKey='" + partnerKey + '\'' +
         ", accessToken='" + accessToken + '\'' +
         ", aesKey='" + aesKey + '\'' +
         ", expiresTime=" + expiresTime +
@@ -179,4 +183,22 @@ public String toString() {
         ", jsapiTicketExpiresTime='" + jsapiTicketExpiresTime + '\'' +
         '}';
   }
+
+    @Override
+    public String getPartnerId() {
+        return partnerId;
+    }
+
+    public void setPartnerId(String partnerId) {
+        this.partnerId = partnerId;
+    }
+
+    @Override
+    public String getPartnerKey() {
+        return partnerKey;
+    }
+
+    public void setPartnerKey(String partnerKey) {
+        this.partnerKey = partnerKey;
+    }
 }

weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpService.java

@@ -11,9 +11,11 @@
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
+import java.math.BigDecimal;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.List;
+import java.util.Map;
 
 /**
  * 微信API的Service
@@ -332,6 +334,18 @@ public interface WxMpService {
    */
   public WxMpQrCodeTicket qrCodeCreateLastTicket(int scene_id) throws WxErrorException;
 
+    /**
+     * <pre>
+     * 换取永久字符串二维码ticket
+     * 详情请见: http://mp.weixin.qq.com/wiki/index.php?title=生成带参数的二维码
+     * </pre>
+     *
+     * @param scene_str 参数。字符串类型长度现在为1到64
+     * @return
+     * @throws WxErrorException
+     */
+    public WxMpQrCodeTicket qrCodeCreateLastTicket(String scene_str) throws WxErrorException;
+
   /**
    * <pre>
    * 换取二维码图片文件，jpg格式
@@ -528,4 +542,32 @@ public interface WxMpService {
    */
   void setMaxRetryTimes(int maxRetryTimes);
 
+    /**
+     * 统一下单(详见http://pay.weixin.qq.com/wiki/doc/api/index.php?chapter=9_1)
+     * 在发起微信支付前，需要调用统一下单接口，获取"预支付交易会话标识"
+     * @param openId 支付人openId
+     * @param outTradeNo 商户端对应订单号
+     * @param amt 金额(单位元)
+     * @param body 商品描述
+     * @param tradeType 交易类型 JSAPI，NATIVE，APP，WAP
+     * @param ip 发起支付的客户端IP
+     * @param notifyUrl 通知地址
+     * @return
+     */
+    WxMpPrepayIdResult getPrepayId(String openId, String outTradeNo, double amt, String body, String tradeType, String ip, String notifyUrl);
+
+    /**
+     * 该接口调用“统一下单”接口，并拼装JSSDK发起支付请求需要的参数
+     * 详见http://mp.weixin.qq.com/wiki/7/aaa137b55fb2e0456bf8dd9148dd613f.html#.E5.8F.91.E8.B5.B7.E4.B8.80.E4.B8.AA.E5.BE.AE.E4.BF.A1.E6.94.AF.E4.BB.98.E8.AF.B7.E6.B1.82
+     * @param openId 支付人openId
+     * @param outTradeNo 商户端对应订单号
+     * @param amt 金额(单位元)
+     * @param body 商品描述
+     * @param tradeType 交易类型 JSAPI，NATIVE，APP，WAP
+     * @param ip 发起支付的客户端IP
+     * @param notifyUrl 通知地址
+     * @return
+     */
+    Map<String, String> getJSSDKPayInfo(String openId, String outTradeNo, double amt, String body, String tradeType, String ip, String notifyUrl);
+
 }

weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpServiceImpl.java

@@ -6,6 +6,7 @@
 import com.google.gson.internal.Streams;
 import com.google.gson.reflect.TypeToken;
 import com.google.gson.stream.JsonReader;
+import com.thoughtworks.xstream.XStream;
 import me.chanjar.weixin.common.bean.WxAccessToken;
 import me.chanjar.weixin.common.bean.WxMenu;
 import me.chanjar.weixin.common.bean.WxJsapiSignature;
@@ -17,13 +18,16 @@
 import me.chanjar.weixin.common.util.RandomUtils;
 import me.chanjar.weixin.common.util.StringUtils;
 import me.chanjar.weixin.common.util.crypto.SHA1;
+import me.chanjar.weixin.common.util.crypto.WxCryptUtil;
 import me.chanjar.weixin.common.util.fs.FileUtils;
 import me.chanjar.weixin.common.util.http.*;
 import me.chanjar.weixin.common.util.json.GsonHelper;
+import me.chanjar.weixin.common.util.xml.XStreamInitializer;
 import me.chanjar.weixin.mp.bean.*;
 import me.chanjar.weixin.mp.bean.result.*;
 import me.chanjar.weixin.mp.util.http.QrCodeRequestExecutor;
 import me.chanjar.weixin.mp.util.json.WxMpGsonBuilder;
+import org.apache.http.Consts;
 import org.apache.http.HttpHost;
 import org.apache.http.auth.AuthScope;
 import org.apache.http.auth.UsernamePasswordCredentials;
@@ -32,6 +36,8 @@
 import org.apache.http.client.config.RequestConfig;
 import org.apache.http.client.methods.CloseableHttpResponse;
 import org.apache.http.client.methods.HttpGet;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.entity.StringEntity;
 import org.apache.http.impl.client.BasicCredentialsProvider;
 import org.apache.http.impl.client.BasicResponseHandler;
 import org.apache.http.impl.client.CloseableHttpClient;
@@ -43,10 +49,9 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.StringReader;
+import java.math.BigDecimal;
 import java.security.NoSuchAlgorithmException;
-import java.util.Date;
-import java.util.List;
-import java.util.UUID;
+import java.util.*;
 
 public class WxMpServiceImpl implements WxMpService {
 
@@ -332,6 +337,19 @@ public WxMpQrCodeTicket qrCodeCreateLastTicket(int scene_id) throws WxErrorExcep
     String responseContent = execute(new SimplePostRequestExecutor(), url, json.toString());
     return WxMpQrCodeTicket.fromJson(responseContent);
   }
+
+    public WxMpQrCodeTicket qrCodeCreateLastTicket(String scene_str) throws WxErrorException {
+        String url = "https://api.weixin.qq.com/cgi-bin/qrcode/create";
+        JsonObject json = new JsonObject();
+        json.addProperty("action_name", "QR_LIMIT_STR_SCENE");
+        JsonObject actionInfo = new JsonObject();
+        JsonObject scene = new JsonObject();
+        scene.addProperty("scene_str", scene_str);
+        actionInfo.add("scene", scene);
+        json.add("action_info", actionInfo);
+        String responseContent = execute(new SimplePostRequestExecutor(), url, json.toString());
+        return WxMpQrCodeTicket.fromJson(responseContent);
+    }
 
   public File qrCodePicture(WxMpQrCodeTicket ticket) throws WxErrorException {
     String url = "https://mp.weixin.qq.com/cgi-bin/showqrcode";
@@ -613,4 +631,77 @@ public void setMaxRetryTimes(int maxRetryTimes) {
     this.maxRetryTimes = maxRetryTimes;
   }
 
+    @Override
+    public WxMpPrepayIdResult getPrepayId(String openId, String outTradeNo, double amt, String body, String tradeType, String ip, String callbackUrl) {
+        String nonce_str = System.currentTimeMillis() + "";
+
+        SortedMap<String, String> packageParams = new TreeMap<String, String>();
+        packageParams.put("appid", wxMpConfigStorage.getAppId());
+        packageParams.put("mch_id", wxMpConfigStorage.getPartnerId());
+        packageParams.put("nonce_str", nonce_str);
+        packageParams.put("body", body);
+        packageParams.put("out_trade_no", outTradeNo);
+
+        packageParams.put("total_fee", (int)(amt*100) + "");
+        packageParams.put("spbill_create_ip", ip);
+        packageParams.put("notify_url", callbackUrl);
+        packageParams.put("trade_type", tradeType);
+        packageParams.put("openid", openId);
+
+        String sign = WxCryptUtil.createSign(packageParams, wxMpConfigStorage.getPartnerKey());
+        String xml = "<xml>" +
+                "<appid>" + wxMpConfigStorage.getAppId() + "</appid>" +
+                "<mch_id>" + wxMpConfigStorage.getPartnerId() + "</mch_id>" +
+                "<nonce_str>" + nonce_str + "</nonce_str>" +
+                "<sign>" + sign + "</sign>" +
+                "<body><![CDATA[" + body + "]]></body>" +
+                "<out_trade_no>" + outTradeNo + "</out_trade_no>" +
+                "<total_fee>" + packageParams.get("total_fee") + "</total_fee>" +
+                "<spbill_create_ip>" + ip + "</spbill_create_ip>" +
+                "<notify_url>" + callbackUrl + "</notify_url>" +
+                "<trade_type>" + tradeType + "</trade_type>" +
+                "<openid>" + openId + "</openid>" +
+                "</xml>";
+
+        HttpPost httpPost = new HttpPost("https://api.mch.weixin.qq.com/pay/unifiedorder");
+        if (httpProxy != null) {
+            RequestConfig config = RequestConfig.custom().setProxy(httpProxy).build();
+            httpPost.setConfig(config);
+        }
+
+        StringEntity entity = new StringEntity(xml, Consts.UTF_8);
+        httpPost.setEntity(entity);
+        try {
+            CloseableHttpResponse response = httpClient.execute(httpPost);
+            String responseContent = Utf8ResponseHandler.INSTANCE.handleResponse(response);
+            XStream xstream = XStreamInitializer.getInstance();
+            xstream.alias("xml", WxMpPrepayIdResult.class);
+            WxMpPrepayIdResult wxMpPrepayIdResult = (WxMpPrepayIdResult) xstream.fromXML(responseContent);
+            return wxMpPrepayIdResult;
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return new WxMpPrepayIdResult();
+    }
+
+    @Override
+    public Map<String, String> getJSSDKPayInfo(String openId, String outTradeNo, double amt, String body, String tradeType, String ip, String callbackUrl) {
+        WxMpPrepayIdResult wxMpPrepayIdResult = getPrepayId(openId, outTradeNo, amt, body, tradeType, ip, callbackUrl);
+        String prepayId = wxMpPrepayIdResult.getPrepay_id();
+        if (prepayId == null || prepayId.equals("")) {
+            throw new RuntimeException("get prepayid error");
+        }
+
+        Map<String, String> payInfo = new HashMap<String, String>();
+        payInfo.put("appId", wxMpConfigStorage.getAppId());
+        // 支付签名时间戳，注意微信jssdk中的所有使用timestamp字段均为小写。但最新版的支付后台生成签名使用的timeStamp字段名需大写其中的S字符
+        payInfo.put("timeStamp", String.valueOf(System.currentTimeMillis() / 1000));
+        payInfo.put("nonceStr", System.currentTimeMillis() + "");
+        payInfo.put("package", "prepay_id=" + prepayId);
+        payInfo.put("signType", "MD5");
+
+        String finalSign = WxCryptUtil.createSign(payInfo, wxMpConfigStorage.getPartnerKey());
+        payInfo.put("sign", finalSign);
+        return payInfo;
+    }
 }