add article content

common/src/main/java/cn/wildfirechat/pojos/ArticleContent.java

@@ -0,0 +1,53 @@
+package cn.wildfirechat.pojos;
+
+import com.google.gson.Gson;
+
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.Base64;
+import java.util.List;
+
+public class ArticleContent {
+    public static class Article {
+        public String id;
+        public String cover;
+        public String title;
+        public String url;
+        public boolean rr;
+
+        public Article() {
+        }
+
+        public Article(String id, String cover, String title, String url, boolean rr) {
+            this.id = id;
+            this.cover = cover;
+            this.title = title;
+            this.url = url;
+            this.rr = rr;
+        }
+    }
+    public Article top;
+    public List<Article> subArticles;
+
+    public ArticleContent() {
+    }
+
+    public ArticleContent(String id, String cover, String title, String url, boolean rr) {
+        this.top = new Article(id, cover, title, url, rr);
+    }
+
+    public ArticleContent addSubArticle(String id, String cover, String title, String url, boolean rr)  {
+        if (subArticles == null)
+            subArticles = new ArrayList<>();
+        subArticles.add(new Article(id, cover, title, url, rr));
+        return this;
+    }
+
+    public MessagePayload toPayload() {
+        MessagePayload payload = new MessagePayload();
+        payload.setType(13);
+        payload.setSearchableContent(top.title);
+        payload.setBase64edData(Base64.getEncoder().encodeToString(new Gson().toJson(this).getBytes(StandardCharsets.UTF_8)));
+        return payload;
+    }
+}

sdk/src/main/java/cn/wildfirechat/sdk/Main.java

@@ -1429,7 +1429,20 @@ public class Main {
         payload.setType(1);
         payload.setSearchableContent("hello world");
 
-        IMResult<SendMessageResult> resultSendMessage = channelServiceApi.sendMessage(0, null,payload);
+        IMResult<SendMessageResult> resultSendMessage = channelServiceApi.sendMessage(0, null, payload);
+        if (resultSendMessage != null && resultSendMessage.getErrorCode() == ErrorCode.ERROR_CODE_SUCCESS) {
+            System.out.println("send message to all the subscriber success");
+        } else {
+            System.out.println("send message to all the subscriber  failure");
+            System.exit(-1);
+        }
+
+        ArticleContent articleContent = new ArticleContent("article1", "https://media.wfcoss.cn/channel-assets/20220816/2dd76540daa9444dae44e942aa1c2bbc.png", "这是一个测试文章", "https://mp.weixin.qq.com/s/W6tanLbALd3qqZM8r3MTgA", true);
+        articleContent.addSubArticle("article2", "https://media.wfcoss.cn/channel-assets/20220816/2dd76540daa9444dae44e942aa1c2bbc.png", "这是第二个测试文章", "https://mp.weixin.qq.com/s/W6tanLbALd3qqZM8r3MTgA", false);
+        articleContent.addSubArticle("article3", "https://media.wfcoss.cn/channel-assets/20220816/2dd76540daa9444dae44e942aa1c2bbc.png", "这是第三个测试文章", "https://mp.weixin.qq.com/s/W6tanLbALd3qqZM8r3MTgA", false);
+        payload = articleContent.toPayload();
+        
+        resultSendMessage = channelServiceApi.sendMessage(0, null, payload);
         if (resultSendMessage != null && resultSendMessage.getErrorCode() == ErrorCode.ERROR_CODE_SUCCESS) {
             System.out.println("send message to all the subscriber success");
         } else {