issue #6 长链接转短链接接口

src/main/java/chanjarster/weixin/api/WxService.java

@@ -305,6 +305,17 @@ public interface WxService {
    */
   public File qrCodePicture(WxQrCodeTicket ticket) throws WxErrorException;
 
+  /**
+   * <pre>
+   * 长链接转短链接接口
+   * 详情请见: http://mp.weixin.qq.com/wiki/index.php?title=长链接转短链接接口
+   * </pre>
+   * @param long_url
+   * @return
+   * @throws WxErrorException
+   */
+  public String shortUrl(String long_url) throws WxErrorException;
+  
   /**
    * 注入 {@link WxConfigStorage} 的实现
    * @param wxConfigProvider

src/main/java/chanjarster/weixin/api/WxServiceImpl.java

@@ -5,7 +5,6 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.StringReader;
 import java.security.MessageDigest;
-import java.text.MessageFormat;
 import java.util.Arrays;
 import java.util.List;
 import java.util.UUID;
@@ -226,7 +225,9 @@ public class WxServiceImpl implements WxService {
   
   public long groupQueryUserGroup(String openid) throws WxErrorException {
     String url = "https://api.weixin.qq.com/cgi-bin/groups/getid";
-    String responseContent = execute(new SimplePostRequestExecutor(), url, MessageFormat.format("'{'\"openid\":\"{0}\"}", openid));
+    JsonObject o = new JsonObject();
+    o.addProperty("openid", openid);
+    String responseContent = execute(new SimplePostRequestExecutor(), url, o.toString());
     JsonElement tmpJsonElement = Streams.parse(new JsonReader(new StringReader(responseContent)));
     return GsonHelper.getAsLong(tmpJsonElement.getAsJsonObject().get("groupid"));
   }
@@ -299,6 +300,16 @@ public class WxServiceImpl implements WxService {
     return execute(new QrCodeRequestExecutor(), url, ticket);
   }
   
+  public String shortUrl(String long_url) throws WxErrorException {
+    String url = "https://api.weixin.qq.com/cgi-bin/shorturl";
+    JsonObject o = new JsonObject();
+    o.addProperty("action", "long2short");
+    o.addProperty("long_url", long_url);
+    String responseContent = execute(new SimplePostRequestExecutor(), url, o.toString());
+    JsonElement tmpJsonElement = Streams.parse(new JsonReader(new StringReader(responseContent)));
+    return tmpJsonElement.getAsJsonObject().get("short_url").getAsString();
+  }
+  
   /**
    * 向微信端发送请求，在这里执行的策略是当发生access_token过期时才去刷新，然后重新执行请求，而不是全局定时请求
    * @param executor

src/test/java/chanjarster/weixin/api/WxShortUrlAPITest.java

@@ -0,0 +1,28 @@
+package chanjarster.weixin.api;
+
+import org.testng.Assert;
+import org.testng.annotations.Guice;
+import org.testng.annotations.Test;
+
+import chanjarster.weixin.exception.WxErrorException;
+
+import com.google.inject.Inject;
+
+/**
+ * 测试用户相关的接口
+ * 
+ * @author chanjarster
+ */
+@Test(groups = "shortURLAPI", dependsOnGroups = { "baseAPI" })
+@Guice(modules = ApiTestModule.class)
+public class WxShortUrlAPITest {
+
+  @Inject
+  protected WxServiceImpl wxService;
+
+  public void testShortUrl() throws WxErrorException {
+    String shortUrl = wxService.shortUrl("www.baidu.com");
+    Assert.assertNotNull(shortUrl);
+  }
+
+}

src/test/resources/testng.xml

@@ -11,6 +11,8 @@
 			<class name="chanjarster.weixin.api.WxMediaAPITest" />
 			<class name="chanjarster.weixin.api.WxMassMessageAPITest" />
       <class name="chanjarster.weixin.api.WxUserAPITest" />
+      <class name="chanjarster.weixin.api.WxQrCodeAPITest" />
+      <class name="chanjarster.weixin.api.WxShortUrlAPITest" />
 		</classes>
 	</test>