Update mongodb

Src/Asp.NetCore2/MongoDbTest/UnitTest/Cases.cs

@@ -15,6 +15,7 @@ namespace MongoDbTest
             QueryWhere.Init();
             QuerySelect.Init();
             QueryJson.Init(); 
+            QueryJsonArray.Init();
             Insert.Init();
             Update.Init();
             Delete.Init();

Src/Asp.NetCore2/MongoDbTest/UnitTest/QueryJsonArray.cs

@@ -0,0 +1,45 @@
+using SqlSugar.MongoDb;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MongoDbTest
+{
+    public class QueryJsonArray
+    {
+        internal static void Init()
+        {
+            var db = DBHelper.DbHelper.GetNewDb();
+            db.CodeFirst.InitTables<Student>();
+            db.DbMaintenance.TruncateTable<Student>();
+            db.Insertable(new Student() { Age = 1, Name = "tom", SchoolId = "a", Book = new List<Book>() { new Book() { CreateTime = DateTime.Now, Price = 21 } } }).ExecuteCommand();
+            var data1=db.Queryable<Student>().ToList();
+            if (data1.First().Book.Count != 1)  Cases.ThrowUnitError();
+            if (data1.First().Book.First().Price != 21) Cases.ThrowUnitError();
+        }
+
+        [SqlSugar.SugarTable("UnitStudentdfsds3zzz1")]
+        public class Student : MongoDbBase
+        {
+            public string Name { get; set; }
+
+            public string SchoolId { get; set; }
+
+            public int Age { get; set; }
+
+            public DateTime CreateDateTime { get; set; }
+
+            [SqlSugar.SugarColumn(IsJson = true)]
+            public List<Book> Book { get; set; }
+        }
+
+        public class Book
+        {
+            public decimal Price { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+    }
+
+}

Src/Asp.NetCore2/SqlSugar.MongoDbCore/MongoDb/SqlBuilder/MongoDbInsertBuilder.cs

@@ -9,6 +9,7 @@ using System.Linq;
 using System.Runtime.CompilerServices;
 using System.Text;
 using System.Text.Json;
+using System.Text.Json.Nodes;
 
 namespace SqlSugar.MongoDb
 {
@@ -22,10 +23,18 @@ namespace SqlSugar.MongoDb
 
                 if (value is IEnumerable enumerable)
                 {
-                    var realType = value.GetType();
+                    var list = new List<BsonDocument>();
-                    var bson = value.ToBson(realType);
+
-                    var json = bson.ToJson(UtilMethods.GetJsonWriterSettings());
+                    foreach (var e in enumerable)
-                    return json;
+                    {  
+                        var realType = e.GetType();
+                        var bson = e.ToBson(realType); // 序列化为 byte[]
+                        var doc = BsonSerializer.Deserialize<BsonDocument>(bson); // 反序列化为 BsonDocument
+                        list.Add(doc);
+                    }
+
+                    var array = new BsonArray(list);
+                    return array.ToJson(UtilMethods.GetJsonWriterSettings());
                 }
                 else
                 {
@@ -51,9 +60,30 @@ namespace SqlSugar.MongoDb
                     // 再用 BsonSerializer 反序列化为 T
                     return BsonSerializer.Deserialize(bsonDoc, type);
                 }
+                else if (json is List<object> list)
+                {
+                    string jsonStr = System.Text.Encoding.UTF8.GetString(list.Select(it=>Convert.ToByte(it)).ToArray());
+                    // 2. 解析为 BsonArray
+                    var bsonArray = MongoDB.Bson.Serialization.BsonSerializer.Deserialize<BsonArray>(jsonStr);
+
+                    // 3. 获取元素类型，例如 List<MyClass> => MyClass
+                    Type elementType = type.GetGenericArguments()[0];
+
+                    // 4. 构造泛型列表对象
+                    var resultList = (IList)Activator.CreateInstance(typeof(List<>).MakeGenericType(elementType));
+
+                    // 5. 反序列化每一项
+                    foreach (var item in bsonArray)
+                    {
+                        var doc = item.AsBsonDocument;
+                        var obj = BsonSerializer.Deserialize(doc, elementType);
+                        resultList.Add(obj);
+                    } 
+                    return resultList; 
+                }
                 else
                 {
-                    return null;
+                    return json;
                 }
             };
         } 
@@ -108,7 +138,7 @@ namespace SqlSugar.MongoDb
                     // 自动推断类型，如 string、int、bool、DateTime、ObjectId 等
                     if (col.IsJson == true)
                     {
-                        doc[col.DbColumnName] = BsonDocument.Parse(col.Value?.ToString());
+                        doc[col.DbColumnName] =UtilMethods.ParseJsonObject(col.Value);
                     }
                     else 
                     {

Src/Asp.NetCore2/SqlSugar.MongoDbCore/Tools/UtilMethods.cs

@@ -1,4 +1,5 @@
 using MongoDB.Bson;
+using MongoDB.Bson.Serialization;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
@@ -17,6 +18,19 @@ namespace SqlSugar.MongoDb
 {
     public class UtilMethods
     {
+        public static BsonValue ParseJsonObject(object json)
+        {
+            if (json is string str && str.TrimStart().StartsWith("{"))
+            { 
+                var arrayObj = BsonDocument.Parse(str);
+                return arrayObj;  
+            }
+            else
+            {
+                var arrayObj = BsonArray.Create(json);
+                return arrayObj;
+            }
+        }
         public static BsonValue MyCreate(object value)
         {
             if (value is DateTime dt)