C# json字符串转对像

qq_34067000 2016-05-24 01:26:37
JSON如下：
{

    "PI": [

        {

            "doc_no": "V160500010",

            "salse": "jizhao",

            "contact_code": "N00000000",

            "customer_contact": "赵先生",

            "customer_code": "C0004280",

            "customer_name": "上海",

            "tel": "18502102883",

            "email": "",

            "address1": "上海新竹路779号",

            "address2": "",

            "city_name": "",

            "pi_date": "2016-05-23",

            "create_by": "peer.ding",

            "sysud": "2016-05-23",

            "bto_addrees1": "",

            "bto_addrees2": "",

            "bto_city_name": "",

            "taxYN": "",

            "sample_ware": "",

            "TOTALAMOUNT": "777",

            "ename": "赵先生",

            "ctel": "18423000033",

            "storefront": "Mo",

            "bto_contactcode": "N00000000",

            "parent_no": "null",

            "cy_type": "",

            "pl_type": ""

        },

        {

            "doc_no": "V160500010",

            "salse": "jimmhao",

            "contact_code": "N00000000",

            "customer_contact": "赵先生",

            "customer_code": "C0000004280",

            "customer_name": "上海",

            "tel": "18502102883",

            "email": "",

            "address1": "上海新竹路779号",

            "address2": "",

            "city_name": "",

            "pi_date": "2016-05-23",

            "create_by": "peer.ding",

            "sysud": "2016-05-23",

            "bto_addrees1": "",

            "bto_addrees2": "",

            "bto_city_name": "",

            "taxYN": "",

            "sample_ware": "",

            "TOTALAMOUNT": "777",

            "ename": "赵先生",

            "ctel": "18423000033",

            "storefront": "M",

            "bto_contactcode": "N00000000",

            "pre_no": "",

            "parent_no": "",

            "cy_type": "",

            "pl_type": ""

        }

    ]

}


C#接收代码如下：
protected int SqlBulkCopyPi()
{
string strTemp = "", strRe = "";

if (HttpContext.Current.Request.Form[0] != null)
strTemp = HttpContext.Current.Request.Form[0].ToString();//此处接收的为上面json字符串

//把字符串转成JSON对像
JsonSerializer serializer = new JsonSerializer();
StringReader sr = new StringReader(strTemp);
object o = serializer.Deserialize(new JsonTextReader(sr), typeof(object));
PI_LIST list = o as PI_LIST;//list获取不到一直为空，求高手解答，谢谢
}

其中PI_LIST如下：




public class PI_LIST

{

	public Dictionary<string,PI> pi_ { get; set; }

}

public class PI

{

	public string doc_no { get; set; }

	public string sales { get; set; }

	public string contact_code { get; set; }

	public string customer_contact { get; set; }

	public string customer_code { get; set; }

	public string customer_name { get; set; }

	public string tel { get; set; }

	public string email { get; set; }

	public string address1 { get; set; }

	public string address2 { get; set; }

	public string city_name { get; set; }

	public string pi_date { get; set; }

	public string create_by { get; set; }

	public string sysud { get; set; }

	public string bto_addrees1 { get; set; }

	public string bto_addrees2 { get; set; }

	public string bto_city_name { get; set; }

	public string taxYN { get; set; }

	public string sample_ware { get; set; }

	public string TOTALAMOUNT { get; set; }

	public string ename { get; set; }

	public string ctel { get; set; }

	public string storefront { get; set; }

	public string bto_contactcode { get; set; }

	public string parent_no { get; set; }

	public string cy_type { get; set; }

	//public List<Pi_Order> PL { get; set; }

	public int pl_type { get; set; } 

}
...全文
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songbing774933 2016-05-24
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引用 10 楼 qq_34067000 的回复:
[quote=引用 8 楼 songbing774933 的回复:]
[quote=引用 6 楼 qq_34067000 的回复:]
//把字符串转成JSON对像
JsonSerializer serializer = new JsonSerializer();
StringReader sr = new StringReader(strTemp);
object o = serializer.Deserialize(new JsonTextReader(sr), typeof(object));
Root li = o as Root;
用上边生成实体类，li还是null


我服了你了........
object o = serializer.Deserialize(new JsonTextReader(sr), typeof(object));
谁教你这样写的？

改成
object o = serializer.Deserialize(new JsonTextReader(sr), typeof(Root ));
或者
Root rt = serializer.Deserialize<Root>(new JsonTextReader(sr));[/quote]


行 96: JsonSerializer serializer = new JsonSerializer();
行 97: StringReader sr = new StringReader(strTemp);
<font color=red>行 98: Root rt = serializer.Deserialize<Root>(new JsonTextReader(sr));
</font>行 99:
<b> 异常详细信息: </b>System.InvalidCastException: 空对象不能转换为值类型。<br><br>
[/quote]

public int pl_type { get; set; }

修改成
public stirng pl_type { get; set; }
或者
public int? pl_type { get; set; }
qq_34067000 2016-05-24
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引用 8 楼 songbing774933 的回复:
[quote=引用 6 楼 qq_34067000 的回复:] //把字符串转成JSON对像 JsonSerializer serializer = new JsonSerializer(); StringReader sr = new StringReader(strTemp); object o = serializer.Deserialize(new JsonTextReader(sr), typeof(object)); Root li = o as Root; 用上边生成实体类，li还是null
我服了你了........ object o = serializer.Deserialize(new JsonTextReader(sr), typeof(object)); 谁教你这样写的？ 改成 object o = serializer.Deserialize(new JsonTextReader(sr), typeof(Root )); 或者 Root rt = serializer.Deserialize<Root>(new JsonTextReader(sr));[/quote] 行 96: JsonSerializer serializer = new JsonSerializer(); 行 97: StringReader sr = new StringReader(strTemp); <font color=red>行 98: Root rt = serializer.Deserialize<Root>(new JsonTextReader(sr)); </font>行 99: <b> 异常详细信息: </b>System.InvalidCastException: 空对象不能转换为值类型。<br><br>
qq_34067000 2016-05-24
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确认了，接收过来的，和上边的json一样。只需要反序列化对像。但一直为null
songbing774933 2016-05-24
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引用 6 楼 qq_34067000 的回复:
//把字符串转成JSON对像
JsonSerializer serializer = new JsonSerializer();
StringReader sr = new StringReader(strTemp);
object o = serializer.Deserialize(new JsonTextReader(sr), typeof(object));
Root li = o as Root;
用上边生成实体类，li还是null


我服了你了........
object o = serializer.Deserialize(new JsonTextReader(sr), typeof(object));
谁教你这样写的？

改成
object o = serializer.Deserialize(new JsonTextReader(sr), typeof(Root ));
或者
Root rt = serializer.Deserialize<Root>(new JsonTextReader(sr));
qq_34067000 2016-05-24
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哪位高人指点指点，怎么老是null
qq_34067000 2016-05-24
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//把字符串转成JSON对像 JsonSerializer serializer = new JsonSerializer(); StringReader sr = new StringReader(strTemp); object o = serializer.Deserialize(new JsonTextReader(sr), typeof(object)); Root li = o as Root; 用上边生成实体类，li还是null
songbing774933 2016-05-24
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public class PIItem
{
/// <summary>
///
/// </summary>
public string doc_no { get; set; }
/// <summary>
///
/// </summary>
public string salse { get; set; }
/// <summary>
///
/// </summary>
public string contact_code { get; set; }
/// <summary>
/// 赵先生
/// </summary>
public string customer_contact { get; set; }
/// <summary>
///
/// </summary>
public string customer_code { get; set; }
/// <summary>
/// 上海
/// </summary>
public string customer_name { get; set; }
/// <summary>
///
/// </summary>
public string tel { get; set; }
/// <summary>
///
/// </summary>
public string email { get; set; }
/// <summary>
/// 上海新竹路779号
/// </summary>
public string address1 { get; set; }
/// <summary>
///
/// </summary>
public string address2 { get; set; }
/// <summary>
///
/// </summary>
public string city_name { get; set; }
/// <summary>
///
/// </summary>
public string pi_date { get; set; }
/// <summary>
///
/// </summary>
public string create_by { get; set; }
/// <summary>
///
/// </summary>
public string sysud { get; set; }
/// <summary>
///
/// </summary>
public string bto_addrees1 { get; set; }
/// <summary>
///
/// </summary>
public string bto_addrees2 { get; set; }
/// <summary>
///
/// </summary>
public string bto_city_name { get; set; }
/// <summary>
///
/// </summary>
public string taxYN { get; set; }
/// <summary>
///
/// </summary>
public string sample_ware { get; set; }
/// <summary>
///
/// </summary>
public string TOTALAMOUNT { get; set; }
/// <summary>
/// 赵先生
/// </summary>
public string ename { get; set; }
/// <summary>
///
/// </summary>
public string ctel { get; set; }
/// <summary>
///
/// </summary>
public string storefront { get; set; }
/// <summary>
///
/// </summary>
public string bto_contactcode { get; set; }
/// <summary>
///
/// </summary>
public string parent_no { get; set; }
/// <summary>
///
/// </summary>
public string cy_type { get; set; }
/// <summary>
///
/// </summary>
public string pl_type { get; set; }
}

public class Root
{
/// <summary>
///
/// </summary>
public List <PIItem > PI { get; set; }
}
songbing774933 2016-05-24
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JSON在线生成实体类

http://www.bejson.com/convert/json2csharp/
qq_34067000 2016-05-24
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嗯嗯，上边二位说的有道理。搞的晕头了，我试试
我叫小菜菜 2016-05-24
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json串是，key-value对象，key是PI，value是一个数组，数组包含两个PI对象。 那怎么转换成Dictionary<string,PI>？？？？ 我觉得，你应该先赋值，然后序列化为字符串，看看字符串是怎样的。 然后反序列化。
娃都会打酱油了 2016-05-24
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Dictionary<string,PI> 你的PI是个数组，你拿Dictionary来反序列化？
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