JSON 定义实体类，来个人解答一下吧。

longteng670603753 2014-03-27 11:51:50

示例：
{
"button":[
{
"type":"click",
"name":"今日歌曲",
"key":"V1001_TODAY_MUSIC"
},
{
"type":"click",
"name":"歌手简介",
"key":"V1001_TODAY_SINGER"
},
{
"name":"菜单",
"sub_button":[
{
"type":"view",
"name":"搜索",
"url":"http://www.soso.com/"
},
{
"type":"view",
"name":"视频",
"url":"http://v.qq.com/"
},
{
"type":"click",
"name":"赞一下我们",
"key":"V1001_GOOD"
}]
}]
}
我定义的实体类：
[Serializable]
public class Menu
{
public Button[] button;
//public Sub_button[] sub_button;
}

[Serializable]
public class Button
{
public string type = "click";
public string name;
public string key;
public Sub_button[] sub_button;
// public List<Buttont> sub_button;
// public string url;
}

[Serializable]
public class Sub_button
{
public string type = "view";
public string name;
public string url;
}

实体类赋值：
Menu menu = new Menu()
{
// 一级菜单赋值
button = new Button[]
{
new Button(){name=txtMenuLeftOne.Text,key="V1001_1"},
new Button(){name=txtMenuCentenOne.Text,key="V1001_02"},
new Button(){name=txtMenuRightOne.Text,key="V1001_3"},
new Button()
{
name="菜单",sub_button=new Sub_button[]
{
//左边二级菜单赋值
new Sub_button(){name=txtMenuLeftTwo.Text,url=txtMenuLeftUrlTwo.Text},
new Sub_button(){name=txtMenuLeftThree.Text,url=txtMenuLeftUrlThree.Text},
new Sub_button(){name=txtMenuLeftFour.Text,url=txtMenuLeftUrlFour.Text},
new Sub_button(){name=txtMenuLeftFive.Text,url=txtMenuLeftUrlFive.Text},
new Sub_button(){name=txtMenuLeftSix.Text,url=txtMenuLeftUrlSix.Text},
//中间二级菜单赋值
new Sub_button(){name=txtMenuCentenTwo.Text,url=txtMenuCentenUrlTwo.Text},
new Sub_button(){name=txtMenuCentenThree.Text,url=txtMenuCentenUrlThree.Text},
new Sub_button(){name=txtMenuCentenFour.Text,url=txtMenuCentenUrlFour.Text},
new Sub_button(){name=txtMenuCentenFive.Text,url=txtMenuCentenUrlFive.Text},
new Sub_button(){name=txtMenuCentenSix.Text,url=txtMenuCentenUrlSix.Text},
//右边二级菜单
new Sub_button(){name=txtMenuRightTwo.Text,url=txtMenuRightUrlTwo.Text},
new Sub_button(){name=txtMenuRightThree.Text,url=txtMenuRightUrlThree.Text},
new Sub_button(){name=txtMenuRightFour.Text,url=txtMenuRightUrlFour.Text},
new Sub_button(){name=txtMenuRightFive.Text,url=txtMenuRightUrlFive.Text},
new Sub_button(){name=txtMenuRightSix.Text,url=txtMenuRightUrlSix.Text},
}
}
}
};
return menu;
结果：
"{\"button\":
[{\"key\":\"V1001_1\",\"name\":\"开奖号码\",\"sub_button\":null,\"type\":\"click\"}, //这三行多了 sub_button
{\"key\":\"V1001_02\",\"name\":\"购彩大厅\",\"sub_button\":null,\"type\":\"click\"},//这三行多了 sub_button
{\"key\":\"V1001_3\",\"name\":\"优惠活动\",\"sub_button\":null,\"type\":\"click\"},//这三行多了 sub_button
{\"key\":null,\"name\":\"菜单\",
\"sub_button\":[{\"name\":\"更多\",\"type\":\"view\",\"url\":\"http:\\/\\/3g.caiyou.cn\\/info\\/Open.aspx\"},
{\"name\":\"排列三\\/五\",\"type\":\"view\",\"url\":\"http:\\/\\/3g.caiyou.cn\\/info\\/Open.aspx?lotId=63\"},
{\"name\":\"福彩3D\",\"type\":\"view\",\"url\":\"http:\\/\\/3g.caiyou.cn\\/info\\/Open.aspx?lotId=6\"},
{\"name\":\"大乐透\",\"type\":\"view\",\"url\":\"http:\\/\\/3g.caiyou.cn\\/info\\/Open.aspx?lotId=39\"},
{\"name\":\"双色球\",\"type\":\"view\",\"url\":\"http:\\/\\/3g.caiyou.cn\\/info\\/Open.aspx?lotId=5\"},
{\"name\":\"更多\",\"type\":\"view\",\"url\":\"http:\\/\\/3g.caiyou.cn\\/Default.aspx\"},
{\"name\":\"新11选5\",\"type\":\"view\",\"url\":\"http:\\/\\/3g.caiyou.cn\\/lottery\\/gp\\/11x5\\/HandRx.aspx\"},
{\"name\":\"竞彩足球\",\"type\":\"view\",\"url\":\"http:\\/\\/3g.caiyou.cn\\/lottery\\/jc\\/jczq.aspx\"},
{\"name\":\"大乐透\",\"type\":\"view\",\"url\":\"http:\\/\\/3g.caiyou.cn\\/lottery\\/tc\\/dlt\\/Hand.aspx\"},
{\"name\":\"双色球\",\"type\":\"view\",\"url\":\"http:\\/\\/3g.caiyou.cn\\/lottery\\/fc\\/ssq\\/Hand.aspx\"},
{\"name\":\"彩金大抢购\",\"type\":\"view\",\"url\":\"http:\\/\\/3g.caiyou.cn\\/info\\/news.aspx?Nid=35175\"},
{\"name\":\"福彩3D百万加奖活动\",\"type\":\"view\",\"url\":\"http:\\/\\/3g.caiyou.cn\\/info\\/news.aspx?Nid=33969\"},
{\"name\":\"\",\"type\":\"view\",\"url\":\"\"},{\"name\":\"\",\"type\":\"view\",\"url\":\"\"},
{\"name\":\"\",\"type\":\"view\",\"url\":\"\"}],\"type\":\"click\"}]}"

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longteng670603753 2014-09-12

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楼主你也太不够意思了，辛苦巧了半天代码，一分都不得。不好意思，把你漏了。。。

Eric_Jiang 2014-03-31

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楼主你也太不够意思了，辛苦巧了半天代码，一分都不得。

longteng670603753 2014-03-28

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引用 11 楼 jiangzhanchang 的回复:

楼主，我那个回复有图有真相啊。最重要的是这两句：

var settings = new JsonSerializerSettings();
 
            settings.PreserveReferencesHandling = PreserveReferencesHandling.Objects;
            settings.NullValueHandling = NullValueHandling.Ignore;//忽略空值。
            string output = JsonConvert.SerializeObject(Books, Formatting.Indented, settings);
            Console.WriteLine(output);

我自已做出来了，原来是我想复杂了。。谢谢，

Eric_Jiang 2014-03-27

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这是什么啊？

longteng670603753 2014-03-27

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longteng670603753 2014-03-27

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引用 11 楼 jiangzhanchang 的回复:

楼主，我那个回复有图有真相啊。最重要的是这两句：

var settings = new JsonSerializerSettings();
 
            settings.PreserveReferencesHandling = PreserveReferencesHandling.Objects;
            settings.NullValueHandling = NullValueHandling.Ignore;//忽略空值。
            string output = JsonConvert.SerializeObject(Books, Formatting.Indented, settings);
            Console.WriteLine(output);

在搞了，我真是垃圾中的战斗机啊。

longteng670603753 2014-03-27

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引用 14 楼 seair626 的回复:

楼主，看收件箱，有个问题请教你

好的

seair626 2014-03-27

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楼主，看收件箱，有个问题请教你

showjim 2014-03-27

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试试fastCSharp

        public class Menu
        {
            public Button[] button;
        }
        public class Button
        {
            public string type = "click";
            public string name;
            [fastCSharp.setup.cSharp.json(IsIgnoreDefaultValue = true)]
            public string key;
            [fastCSharp.setup.cSharp.json(IsIgnoreDefaultValue = true)]
            public Sub_button[] sub_button;
        }
        public class Sub_button
        {
            public string type = "view";
            public string name;
            [fastCSharp.setup.cSharp.json(IsIgnoreDefaultValue = true)]
            public string url;
        }
            string json = fastCSharp.setup.cSharp.json.toJson.Get(menu);

黑子大哥 2014-03-27

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LZ 你的问题在这里 { "button":[ { "type":"click", "name":"今日歌曲", "key":"V1001_TODAY_MUSIC" }, { "type":"click", "name":"歌手简介", "key":"V1001_TODAY_SINGER" }, { "name":"菜单", "sub_button":[ { "type":"view", "name":"搜索", "url":"http://www.soso.com/" }, { "type":"view", "name":"视频", "url":"http://v.qq.com/" }, { "type":"click", "name":"赞一下我们", "key":"V1001_GOOD" }] }] } lz你没发现你的json不规则嘛？你的button是一个数组，button我简称B B[0] 和B[1]是一个类型，然而B[2]却是另一个类型，这样的jison转换是不会成功的对咯 json序列化不需要加 [Serializable] 标签对于你这样的json只能手动自己解析了，最好弄规则json序列化！！

Eric_Jiang 2014-03-27

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楼主，我那个回复有图有真相啊。最重要的是这两句：

var settings = new JsonSerializerSettings();
 
            settings.PreserveReferencesHandling = PreserveReferencesHandling.Objects;
            settings.NullValueHandling = NullValueHandling.Ignore;//忽略空值。
            string output = JsonConvert.SerializeObject(Books, Formatting.Indented, settings);
            Console.WriteLine(output);

longteng670603753 2014-03-27

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引用 8 楼 findcaiyzh 的回复:

没看见问题在哪里。

不懂怎么定义那JSON 示例的实体类，，

longteng670603753 2014-03-27

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引用 4 楼 liuxingfffff 的回复:

LZ 试试这个吧


[Serializable]
    public class Menu
    {
        public BaseButton[] button;
    }

    [XmlInclude(typeof(ViewButton))]
    [XmlInclude(typeof(ClickButton))]
    [XmlInclude(typeof(SubButton))]
    [Serializable]
    public abstract class BaseButton 
    {
        public string name;
    }

    [Serializable]
    [XmlInclude(typeof(ViewButton))]
    [XmlInclude(typeof(ClickButton))]
    public class Button : BaseButton 
    {
        public string type;
    }
    [Serializable]
    public class ClickButton : Button 
    {
        public string key;
    }
    [Serializable]
    public class ViewButton : Button
    {
        public string url;
    }
    [Serializable]
    public class SubButton : BaseButton
    {
        public Button[] sub_button;
    }

    public class Class1
    {
        public static Menu GetMenu()
        {
            Menu menu = new Menu()
            {
                //  一级菜单赋值
                button = new BaseButton[]
                {
                        new ClickButton(){name="1",key="V1001_1"},
                        new ClickButton(){name="2",key="V1001_02"},
                        new ClickButton(){name="3",key="V1001_3"},
                        new SubButton()
                        {
                                name="菜单",sub_button=new Button[]
                                {
                                    //左边二级菜单赋值
                                    new ViewButton(){name="1",url="1"},
                                     new ViewButton(){name="2",url="2"},
                                      new ViewButton(){name="3",url="3"}
                                }       
                        }
                }
            };
            return menu;
        }
    }

button = new BaseButton[] { new ClickButton(){type="click",name=txtMenuLeftOne.Text,key="V1001_1"}, new ClickButton(){type="click",name=txtMenuCentenOne.Text,key="V1001_02"}, new ClickButton(){type="click",name=txtMenuRightOne.Text,key="V1001_3"}, new SubButton() { name="菜单",sub_button=new ButtonBase[] { //左边二级菜单赋值 new ViewButton(){type="view",name=txtMenuLeftTwo.Text,url=txtMenuLeftUrlTwo.Text}, new ViewButton(){type="view",name=txtMenuLeftThree.Text,url=txtMenuLeftUrlThree.Text}, new ViewButton(){type="view",name=txtMenuLeftFour.Text,url=txtMenuLeftUrlFour.Text}, new ViewButton(){type="view",name=txtMenuLeftFive.Text,url=txtMenuLeftUrlFive.Text}, new ViewButton(){type="view",name=txtMenuLeftSix.Text,url=txtMenuLeftUrlSix.Text}, //中间二级菜单赋值 new ViewButton(){type="view",name=txtMenuCentenTwo.Text,url=txtMenuCentenUrlTwo.Text}, new ViewButton(){type="view",name=txtMenuCentenThree.Text,url=txtMenuCentenUrlThree.Text}, new ViewButton(){type="view",name=txtMenuCentenFour.Text,url=txtMenuCentenUrlFour.Text}, new ViewButton(){type="view",name=txtMenuCentenFive.Text,url=txtMenuCentenUrlFive.Text}, new ViewButton(){type="view",name=txtMenuCentenSix.Text,url=txtMenuCentenUrlSix.Text}, //右边二级菜单 new ViewButton(){type="view",name=txtMenuRightTwo.Text,url=txtMenuRightUrlTwo.Text}, new ViewButton(){type="view",name=txtMenuRightThree.Text,url=txtMenuRightUrlThree.Text}, new ViewButton(){type="view",name=txtMenuRightFour.Text,url=txtMenuRightUrlFour.Text}, new ViewButton(){type="view",name=txtMenuRightFive.Text,url=txtMenuRightUrlFive.Text}, new ViewButton(){type="view",name=txtMenuRightSix.Text,url=txtMenuRightUrlSix.Text}, } } } 错误 1无法将类型“wechatForm.ViewButton”隐式转换为“System.Windows.Forms.ButtonBase” new ViewButton() 说不能隐式转换为 System.Windows.Forms.ButtonBase”。可是后面是有继承关系的啊，我搞不明白了 public class ViewButton : Button { public string url; } public class Button : BaseButton { public string type; }

宝_爸 2014-03-27

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没看见问题在哪里。

Eric_Jiang 2014-03-27

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Eric_Jiang 2014-03-27

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using System;
using System.Collections.Generic;
using Newtonsoft.Json;

namespace TestJsonApi
{
    class Program
    {
        static void Main(string[] args)
        {
               TestJs();   
        }

        public static void TestJs()
        {
            var b = new Book();
            b.BookId = Guid.NewGuid().ToString();
            //b.Name = "Pro C# 2010";
            b.SizeLists = new List<string>() { "SmallList", "MiddleList", "LargeList" };
           
            var b2 = new Book();
            b2.BookId = Guid.NewGuid().ToString();
            b2.Name = "Pro C++ 2010";         
            //b2.SizeLists = new List<string>() { "SmallList", "MiddleList", "LargeList" };
          
            var Books = new List<Book>();
            Books.Add(b);
            Books.Add(b2);

            var settings = new JsonSerializerSettings();

            settings.PreserveReferencesHandling = PreserveReferencesHandling.Objects;
            settings.NullValueHandling = NullValueHandling.Ignore;//忽略空值。
            string output = JsonConvert.SerializeObject(Books, Formatting.Indented, settings);
            Console.WriteLine(output);
            Console.Read();
        }
    }

    [JsonObject(IsReference = true)]
    public class Book
    {
        [JsonProperty]
        public string BookId { get; set; }
        public string Name { get; set; }
        public IList<string> SizeLists { get; set; }
    }
}

Eric_Jiang 2014-03-27

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给你一个例子：

liuxingfffff 2014-03-27

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LZ 试试这个吧


[Serializable]
    public class Menu
    {
        public BaseButton[] button;
    }

    [XmlInclude(typeof(ViewButton))]
    [XmlInclude(typeof(ClickButton))]
    [XmlInclude(typeof(SubButton))]
    [Serializable]
    public abstract class BaseButton 
    {
        public string name;
    }

    [Serializable]
    [XmlInclude(typeof(ViewButton))]
    [XmlInclude(typeof(ClickButton))]
    public class Button : BaseButton 
    {
        public string type;
    }
    [Serializable]
    public class ClickButton : Button 
    {
        public string key;
    }
    [Serializable]
    public class ViewButton : Button
    {
        public string url;
    }
    [Serializable]
    public class SubButton : BaseButton
    {
        public Button[] sub_button;
    }

    public class Class1
    {
        public static Menu GetMenu()
        {
            Menu menu = new Menu()
            {
                //  一级菜单赋值
                button = new BaseButton[]
                {
                        new ClickButton(){name="1",key="V1001_1"},
                        new ClickButton(){name="2",key="V1001_02"},
                        new ClickButton(){name="3",key="V1001_3"},
                        new SubButton()
                        {
                                name="菜单",sub_button=new Button[]
                                {
                                    //左边二级菜单赋值
                                    new ViewButton(){name="1",url="1"},
                                     new ViewButton(){name="2",url="2"},
                                      new ViewButton(){name="3",url="3"}
                                }       
                        }
                }
            };
            return menu;
        }
    }

longteng670603753 2014-03-27