Question

我正在使用Newtonsoft的Json.Net。我有这个Json：

var j1 = {"status_code":"200", "message":"everything is ok"};

这是另一个Json：

var j2 = {"records":[{"id":"1", "name":"file1"},
                      {"id":"2", "name":"file2"},
                      {"id":"3", "name":"file3"}]
         };

基本上第二个j2是目录中文件的列表（数组）。它可能是空的：

 {"records":"[]"}

我想要的是：将j2追加（concat，merge）j1到j1的结尾：

var j3 = {
          "status_code":"200", 
          "message":"everything is ok", 
          "records":[{"id":"1", "name":"file1"},
                      {"id":"2", "name":"file2"},
                      {"id":"3", "name":"file3"}]
         };
         // NOTE: the array does NOT have double quots ("")

如何使用JsonConvert.Serialize（）或Newtonesoft的Json.NET中的任何其他方式实现此目的？

Answer 1

var j = JsonConvert.SerializeObject(new[] { JsonConvert.DeserializeObject(j1), 
JsonConvert.DeserializeObject(j2) });

或

var j = JsonConvert.SerializeObject(new { obj1 = JObject.Parse(j1), 
                                          obj2 = JObject.Parse(j2) });

Answer 2

可以试试这个（注意：没有空的检查......）：

string json1 = "{\"status_code\":\"200\",\"message\":\"everything is ok\"}";
string json2 = "{\"records\":[{\"id\":\"1\",\"name\":\"file1\"},{\"id\":\"2\",\"name\":\"file2\"},{\"id\":\"3\",\"name\":\"file3\"}]}";

dynamic object1 = JsonConvert.DeserializeObject(json1);
dynamic object2 = JsonConvert.DeserializeObject(json2);

dynamic result = object1;
result.records = object2.records;

string serialized = JsonConvert.SerializeObject(result);

Answer 3

这可能有用。

var j3 = j1.concat(j2);

Answer 4

这些答案大大超过了复杂的事情......只需创建一个新的匿名类型内联，你调用SerializeObject，它看起来像这样;

  string serialized = JsonConvert.SerializeObject(new { status_code = j1.status_code, 
                                                        message = j1.message,
                                                        records = j2.records } );

Answer 5

您可以使用LINQ to JSON中构建的JSON.NET来实现此目的：

string j1 = {"status_code":"200", "message":"everything is ok"};
string j2 = {"records":[{"id":"1", "name":"file1"},
                          {"id":"2", "name":"file2"},
                          {"id":"3", "name":"file3"}]
             }; 

JObject jObject1 = JObject.Parse(j1);
JObject jObject2 = JObject.Parse(j2);

jObject1.Merge(jObject2, new JsonMergeSettings
                {
                    MergeArrayHandling = MergeArrayHandling.Concat
                });

string j3 = jObject1.ToString();

j3变量看起来完全如下：

{
    "status_code": "200",
    "message": "everything is ok",
    "records": [
        {
            "id": "1",
            "name": "file1"
        },
        {
            "id": "2",
            "name": "file2"
        },
        {
            "id": "3",
            "name": "file3"
        }
    ]
}

这就是你想要的。

将字段附加到Json记录对象

5 个答案: