添加扫码支付生成二维码的接口及其单元测试，#113

weixin-java-mp/pom.xml

@@ -59,7 +59,11 @@
       <artifactId>xml-path</artifactId>
       <version>3.0.1</version>
     </dependency>
-
+    <dependency>
+      <groupId>com.github.binarywang</groupId>
+      <artifactId>qrcode-utils</artifactId>
+      <version>1.0</version>
+    </dependency>
   </dependencies>
 
   <build>

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

@@ -7,6 +7,7 @@ import me.chanjar.weixin.mp.bean.pay.request.WxPaySendRedpackRequest;
 import me.chanjar.weixin.mp.bean.pay.request.WxPayUnifiedOrderRequest;
 import me.chanjar.weixin.mp.bean.pay.result.*;
 
+import java.io.File;
 import java.util.Map;
 
 /**
@@ -235,4 +236,32 @@ public interface WxMpPayService {
    */
   WxEntPayQueryResult queryEntPay(String partnerTradeNo) throws WxErrorException;
 
+  /**
+   * <pre>
+   * 扫码支付模式一生成二维码的方法
+   * 二维码中的内容为链接，形式为：
+   * weixin://wxpay/bizpayurl?sign=XXXXX&appid=XXXXX&mch_id=XXXXX&product_id=XXXXXX&time_stamp=XXXXXX&nonce_str=XXXXX
+   * 其中XXXXX为商户需要填写的内容，商户将该链接生成二维码，如需要打印发布二维码，需要采用此格式。商户可调用第三方库生成二维码图片。
+   * 文档详见: https://pay.weixin.qq.com/wiki/doc/api/native.php?chapter=6_4
+   * </pre>
+   * @param productId 产品Id
+   * @param sideLength 要生成的二维码的边长，如果为空，则取默认值400
+   * @param logoFile 商户logo图片的文件对象，可以为空
+   * @return 生成的二维码的字节数组
+   */
+  byte[] createScanPayQrcodeMode1(String productId, File logoFile, Integer sideLength);
+
+  /**
+   * <pre>
+   * 扫码支付模式二生成二维码的方法
+   * 对应链接格式：weixin：//wxpay/bizpayurl?sr=XXXXX。请商户调用第三方库将code_url生成二维码图片。
+   * 该模式链接较短，生成的二维码打印到结账小票上的识别率较高。
+   * 文档详见: https://pay.weixin.qq.com/wiki/doc/api/native.php?chapter=6_5
+   * </pre>
+   * @param codeUrl 微信返回的交易会话的二维码链接
+   * @param logoFile 商户logo图片的文件对象，可以为空
+   * @param sideLength 要生成的二维码的边长，如果为空，则取默认值400
+   * @return 生成的二维码的字节数组
+   */
+  byte[] createScanPayQrcodeMode2(String codeUrl, File logoFile, Integer sideLength);
 }

weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/impl/WxMpPayServiceImpl.java

@@ -1,5 +1,7 @@
 package me.chanjar.weixin.mp.api.impl;
 
+import com.github.binarywang.utils.qrcode.QrcodeUtils;
+import com.google.common.collect.Maps;
 import me.chanjar.weixin.common.bean.result.WxError;
 import me.chanjar.weixin.common.exception.WxErrorException;
 import me.chanjar.weixin.common.util.BeanUtils;
@@ -25,6 +27,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import javax.net.ssl.SSLContext;
+import java.io.File;
 import java.io.IOException;
 import java.util.*;
 
@@ -316,6 +319,41 @@ public class WxMpPayServiceImpl implements WxMpPayService {
     return result;
   }
 
+  @Override
+  public byte[] createScanPayQrcodeMode1(String productId, File logoFile, Integer sideLength) {
+    //weixin://wxpay/bizpayurl?sign=XXXXX&appid=XXXXX&mch_id=XXXXX&product_id=XXXXXX&time_stamp=XXXXXX&nonce_str=XXXXX
+    StringBuilder codeUrl = new StringBuilder("weixin://wxpay/bizpayurl?");
+    Map<String, String> params = Maps.newHashMap();
+    params.put("appid", this.getConfig().getAppId());
+    params.put("mch_id", this.getConfig().getPartnerId());
+    params.put("product_id", productId);
+    params.put("time_stamp", String.valueOf(System.currentTimeMillis()));
+    params.put("nonce_str", String.valueOf(System.currentTimeMillis()));
+
+    String sign = this.createSign(params);
+    params.put("sign", sign);
+
+    for (String key : params.keySet()) {
+      codeUrl.append(key + "=" + params.get(key) + "&");
+    }
+
+    String content = codeUrl.toString().substring(0, codeUrl.length() - 1);
+    if (sideLength == null || sideLength < 1) {
+      return QrcodeUtils.createQrcode(content, logoFile);
+    }
+
+    return QrcodeUtils.createQrcode(content, sideLength, logoFile);
+  }
+
+  @Override
+  public byte[] createScanPayQrcodeMode2(String codeUrl, File logoFile, Integer sideLength) {
+    if (sideLength == null || sideLength < 1) {
+      return QrcodeUtils.createQrcode(codeUrl, logoFile);
+    }
+
+    return QrcodeUtils.createQrcode(codeUrl, sideLength, logoFile);
+  }
+
   private String executeRequest(String url, String requestStr) throws WxErrorException {
     HttpPost httpPost = new HttpPost(url);
     if (this.wxMpService.getHttpProxy() != null) {

weixin-java-mp/src/test/java/me/chanjar/weixin/mp/api/ApiTestModule.java

@@ -19,7 +19,6 @@ public class ApiTestModule implements Module {
       WxXmlMpInMemoryConfigStorage config = this
         .fromXml(WxXmlMpInMemoryConfigStorage.class, is1);
       config.setAccessTokenLock(new ReentrantLock());
-      config.setSslContextFilePath(config.getKeyPath());
       WxMpService wxService = new WxMpServiceImpl();
       wxService.setWxMpConfigStorage(config);
 

weixin-java-mp/src/test/java/me/chanjar/weixin/mp/api/impl/WxMpPayServiceImplTest.java

@@ -1,5 +1,6 @@
 package me.chanjar.weixin.mp.api.impl;
 
+import com.github.binarywang.utils.qrcode.QrcodeUtils;
 import com.google.inject.Inject;
 import me.chanjar.weixin.common.exception.WxErrorException;
 import me.chanjar.weixin.mp.api.ApiTestModule;
@@ -10,9 +11,13 @@ import me.chanjar.weixin.mp.bean.pay.request.WxPayRefundRequest;
 import me.chanjar.weixin.mp.bean.pay.request.WxPaySendRedpackRequest;
 import me.chanjar.weixin.mp.bean.pay.request.WxPayUnifiedOrderRequest;
 import me.chanjar.weixin.mp.bean.pay.result.*;
+import org.testng.Assert;
 import org.testng.annotations.Guice;
 import org.testng.annotations.Test;
 
+import java.nio.file.Files;
+import java.nio.file.Path;
+
 /**
  * 测试支付相关接口
  * Created by Binary Wang on 2016/7/28.
@@ -22,7 +27,6 @@ import org.testng.annotations.Test;
 @Test
 @Guice(modules = ApiTestModule.class)
 public class WxMpPayServiceImplTest {
-
   @Inject
   protected WxMpService wxService;
 
@@ -32,9 +36,17 @@ public class WxMpPayServiceImplTest {
   }
 
   /**
-   * Test method for {@link me.chanjar.weixin.mp.api.impl.WxMpPayServiceImpl#refund(WxPayRefundRequest)} .
+   * 需要证书的接口需要先执行该方法
    */
   @Test
+  public void setSSLKey(){
+    WxXmlMpInMemoryConfigStorage config = (WxXmlMpInMemoryConfigStorage) this.wxService.getWxMpConfigStorage();
+    config.setSslContextFilePath(config.getKeyPath());
+  }
+  /**
+   * Test method for {@link me.chanjar.weixin.mp.api.impl.WxMpPayServiceImpl#refund(WxPayRefundRequest)} .
+   */
+  @Test(dependsOnMethods = {"setSSLKey"})
   public void testRefund() throws Exception {
     WxPayRefundRequest request = new WxPayRefundRequest();
     request.setOutRefundNo("aaa");
@@ -45,7 +57,6 @@ public class WxMpPayServiceImplTest {
     System.err.println(result);
   }
 
-
   /**
    * Test method for {@link me.chanjar.weixin.mp.api.impl.WxMpPayServiceImpl#refundQuery(String, String, String, String)} .
    */
@@ -63,15 +74,10 @@ public class WxMpPayServiceImplTest {
     System.err.println(result);
   }
 
-  @Test
-  public void testCheckJSSDKCallbackDataSignature() throws Exception {
-
-  }
-
   /**
    * Test method for {@link me.chanjar.weixin.mp.api.impl.WxMpPayServiceImpl#sendRedpack(WxPaySendRedpackRequest)} .
    */
-  @Test
+  @Test(dependsOnMethods = {"setSSLKey"})
   public void testSendRedpack() throws Exception {
     WxPaySendRedpackRequest request = new WxPaySendRedpackRequest();
     request.setActName("abc");
@@ -86,7 +92,7 @@ public class WxMpPayServiceImplTest {
   /**
    * Test method for {@link me.chanjar.weixin.mp.api.impl.WxMpPayServiceImpl#queryRedpack(String)}.
    */
-  @Test
+  @Test(dependsOnMethods = {"setSSLKey"})
   public void testQueryRedpack() throws Exception {
     WxPayRedpackQueryResult redpackResult = this.wxService.getPayService().queryRedpack("aaaa");
     System.err.println(redpackResult);
@@ -125,7 +131,7 @@ public class WxMpPayServiceImplTest {
   /**
    * Test method for {@link me.chanjar.weixin.mp.api.impl.WxMpPayServiceImpl#entPay(WxEntPayRequest)}.
    */
-  @Test
+  @Test(dependsOnMethods = {"setSSLKey"})
   public final void testEntPay() throws WxErrorException {
     WxEntPayRequest request = new WxEntPayRequest();
     System.err.println(this.wxService.getPayService().entPay(request));
@@ -134,8 +140,33 @@ public class WxMpPayServiceImplTest {
   /**
    * Test method for {@link me.chanjar.weixin.mp.api.impl.WxMpPayServiceImpl#queryEntPay(String)}.
    */
-  @Test
+  @Test(dependsOnMethods = {"setSSLKey"})
   public final void testQueryEntPay() throws WxErrorException {
     System.err.println(this.wxService.getPayService().queryEntPay("11212121"));
   }
+
+  @Test
+  public void testCreateScanPayQrcodeMode1() throws Exception {
+    String productId = "abc";
+    byte[] bytes = this.wxService.getPayService().createScanPayQrcodeMode1(productId, null, null);
+    Path qrcodeFilePath = Files.createTempFile("qrcode_", ".jpg");
+    Files.write(qrcodeFilePath, bytes);
+    String qrcodeContent = QrcodeUtils.decodeQrcode(qrcodeFilePath.toFile());
+    System.out.println(qrcodeContent);
+
+    Assert.assertTrue(qrcodeContent.startsWith("weixin://wxpay/bizpayurl?"));
+    Assert.assertTrue(qrcodeContent.contains("product_id=" + productId));
+  }
+
+  @Test
+  public void testCreateScanPayQrcodeMode2() throws Exception {
+    String qrcodeContent = "abc";
+    byte[] bytes = this.wxService.getPayService().createScanPayQrcodeMode2(qrcodeContent, null, null);
+    Path qrcodeFilePath = Files.createTempFile("qrcode_", ".jpg");
+    Files.write(qrcodeFilePath, bytes);
+
+    Assert.assertEquals(QrcodeUtils.decodeQrcode(qrcodeFilePath.toFile()), qrcodeContent);
+  }
+
+
 }