在c#中创建JSON数组
本文关键字:JSON 数组 创建 | 更新日期: 2023-09-27 18:16:54
好的,所以我试图通过http连接发送POST命令,并使用JSON格式这样做。我正在用c#编写程序来做到这一点,并且想知道如何格式化要作为JSON传递给服务器的值数组。
目前我有这个:
new {name = "command" , index = "X", optional = "0"}
在JSON中翻译为:
"name": "command",
"index": "X",
"optional": "0"
我想创建一个名为items的数组,其中每个元素包含这三个值。因此,它本质上是一个对象数组,其中对象包含一个名称、一个索引和一个可选字段。
我猜应该是这样的:
new {items = [(name = "command" , index = "X", optional = "0"),
(name = "status" , index = "X", optional = "0")]}
如果语法正确,将在JSON中翻译为:
"items":
[
{
"name": "command",
"index": "X",
"optional": "0"
},
{
"name": "status",
"index": "X",
"optional": "0"
}
]
但是,很明显我做错了。想法吗?
你很接近了。这应该能奏效:
new {items = new [] {
new {name = "command" , index = "X", optional = "0"},
new {name = "command" , index = "X", optional = "0"}
}}
如果你的源是某种类型的可枚举对象,你可能想这样做:
new {items = source.Select(item => new
{
name = item.Name, index = item.Index, options = item.Optional
})};
您最好为每个项目创建一些类,而不是使用匿名对象。在你序列化的object中你应该有这些项的数组。例如:
public class Item
{
public string name { get; set; }
public string index { get; set; }
public string optional { get; set; }
}
public class RootObject
{
public List<Item> items { get; set; }
}
用法:
var objectToSerialize = new RootObject();
objectToSerialize.items = new List<Item>
{
new Item { name = "test1", index = "index1" },
new Item { name = "test2", index = "index2" }
};
这样,如果你需要改变数据结构,你就不必多次修改了。
注。这是一个非常好的工具来处理复杂的json
同样,对于匿名类型(我更喜欢而不是)—这只是另一种方法。
void Main()
{
var x = new
{
items = new[]
{
new
{
name = "command", index = "X", optional = "0"
},
new
{
name = "command", index = "X", optional = "0"
}
}
};
JavaScriptSerializer js = new JavaScriptSerializer(); //system.web.extension assembly....
Console.WriteLine(js.Serialize(x));
}
结果: {"items":[{"name":"command","index":"X","optional":"0"},{"name":"command","index":"X","optional":"0"}]}
new {var_data[counter] =new [] {
new{ "S NO": "+ obj_Data_Row["F_ID_ITEM_MASTER"].ToString() +","PART NAME": " + obj_Data_Row["F_PART_NAME"].ToString() + ","PART ID": " + obj_Data_Row["F_PART_ID"].ToString() + ","PART CODE":" + obj_Data_Row["F_PART_CODE"].ToString() + ", "CIENT PART ID": " + obj_Data_Row["F_ID_CLIENT"].ToString() + ","TYPES":" + obj_Data_Row["F_TYPE"].ToString() + ","UOM":" + obj_Data_Row["F_UOM"].ToString() + ","SPECIFICATION":" + obj_Data_Row["F_SPECIFICATION"].ToString() + ","MODEL":" + obj_Data_Row["F_MODEL"].ToString() + ","LOCATION":" + obj_Data_Row["F_LOCATION"].ToString() + ","STD WEIGHT":" + obj_Data_Row["F_STD_WEIGHT"].ToString() + ","THICKNESS":" + obj_Data_Row["F_THICKNESS"].ToString() + ","WIDTH":" + obj_Data_Row["F_WIDTH"].ToString() + ","HEIGHT":" + obj_Data_Row["F_HEIGHT"].ToString() + ","STUFF QUALITY":" + obj_Data_Row["F_STUFF_QTY"].ToString() + ","FREIGHT":" + obj_Data_Row["F_FREIGHT"].ToString() + ","THRESHOLD FG":" + obj_Data_Row["F_THRESHOLD_FG"].ToString() + ","THRESHOLD CL STOCK":" + obj_Data_Row["F_THRESHOLD_CL_STOCK"].ToString() + ","DESCRIPTION":" + obj_Data_Row["F_DESCRIPTION"].ToString() + "}
}
};