fix: 新增工作流模型

yudao-framework/yudao-common/src/main/java/cn/iocoder/yudao/framework/common/util/json/JsonUtils.java

@@ -4,6 +4,7 @@ import cn.hutool.core.util.ArrayUtil;
 import cn.hutool.core.util.StrUtil;
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.SerializationFeature;
 
@@ -43,6 +44,14 @@ public class JsonUtils {
         }
     }
 
+    public static byte[] toJsonByte(Object object) {
+        try {
+            return objectMapper.writeValueAsBytes(object);
+        } catch (JsonProcessingException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
     public static <T> T parseObject(String text, Class<T> clazz) {
         if (StrUtil.isEmpty(text)) {
             return null;
@@ -84,4 +93,20 @@ public class JsonUtils {
         }
     }
 
+    public static JsonNode readTree(String text) {
+        try {
+            return objectMapper.readTree(text);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static JsonNode readTree(byte[] text) {
+        try {
+            return objectMapper.readTree(text);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
 }