c#解析Json

比眉伴天荒 2023-06-15 07:16 52阅读 0赞

json字符串：

{
        
      "baseInfo" : {
        
        "id" : "370171000bd8a85d144e6bbf9bb741aaeb307a",
        "name" : "王尼玛",
        "addr" : null,
        "presentAddressCounty" : "历下区",
        "presentAddressTown" : "建筑新村街道办事处",
        "presentAddressVillage" : "历山东路居委会",
        "presentAddressHouseNum" : "历山东路居委会历山东路2019号11-21-10",
        "isDisease" : "1",
        "isTrauma" : null,
        "isOperration" : null,
        "isTransfusion" : null,
        "idNo" : null
      },
      "EhrPirDisease" : [ {
        
        "id" : null,
        "pirId" : null,
        "healthRecordCode" : null,
        "diseaseCode" : null,
        "diseaseName" : "冠心病",
        "diagnoseTime" : null
      }, {
        
        "id" : null,
        "pirId" : null,
        "healthRecordCode" : null,
        "diseaseCode" : null,
        "diseaseName" : "高血压",
        "diagnoseTime" : null
      } ]
    }

利用C#处理这个字符串，在控制台显示出人员一些信息

解决步骤：

*  在VS中新建项目——控制台应用程序。
 *  引用类库：在VS中点击：项目-》引用-》扩展-》找到Json.Net(Newtonsoft.Json.dll)-》勾选-》确定。
 *  没有就下载对应的版本：http://json.codeplex.com/然后继续上一步  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTUzMzk1Ng_size_16_color_FFFFFF_t_70]  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTUzMzk1Ng_size_16_color_FFFFFF_t_70 1]
 *  在主程序Program.cs的开头添加 using Newtonsoft.Json; 这一语句。
 *  把要处理的json字符串复制到VS里面直接选择 编辑-》选择性粘贴-》将Json粘贴为类得到C\#类：

public class BaseInfo
            {
        
                public string id {
         get; set; }
                public string name {
         get; set; }
                public string addr {
         get; set; }
                public string presentAddressCounty {
         get; set; }
                public string presentAddressTown {
         get; set; }
                public string presentAddressVillage {
         get; set; }
                public string presentAddressHouseNum {
         get; set; }
                public string isDisease {
         get; set; }
                public string isTrauma {
         get; set; }
                public string isOperration {
         get; set; }
                public string isTransfusion {
         get; set; }
                public string idNo {
         get; set; }
            }
    
            public class EhrPirDisease
            {
        
                public string id {
         get; set; }
                public string pirId {
         get; set; }
                public string healthRecordCode {
         get; set; }
                public string diseaseCode {
         get; set; }
                public string diseaseName {
         get; set; }
                public string diagnoseTime {
         get; set; }
            }
    
            public class RootObject
            {
        
                public BaseInfo baseInfo {
         get; set; }
                public List<EhrPirDisease> EhrPirDisease {
         get; set; }
            }

把这部分内容放到class Test类的下方。

*  json中有很多的引号，赋值给一个string变量还要加上很多的反斜杠。这里给大家一个在线工具：http://tool.chinaz.com/tools/jsonescape.aspx将Json代码复制进去点击“压缩并转义”，得到的值可以直接赋值给一个string变量，如图：  
    ![在这里插入图片描述][20191121104936155.png]  
    ![\[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-OYUpnCMx-1574303811954)(E:%5CTypora%5Cc++%5C1111831-20170817131223396-1034319951.png)\]][img-OYUpnCMx-1574303811954_E_5CTypora_5Cc_5C1111831-20170817131223396-1034319951.png]

string jsonText = "{\"baseInfo\":{\"id\":\"370171000bd8a85d144e6bbf9bb741aaeb307a\",\"name\":\"王尼玛\",\"addr\":null,\"presentAddressCounty\":\"历下区\",\"presentAddressTown\":\"建筑新村街道办事处\",\"presentAddressVillage\":\"历山东路居委会\",\"presentAddressHouseNum\":\"历山东路居委会历山东路2019号11-21-10\",\"isDisease\":\"1\",\"isTrauma\":null,\"isOperration\":null,\"isTransfusion\":null,\"idNo\":null},\"EhrPirDisease\":[{\"id\":null,\"pirId\":null,\"healthRecordCode\":null,\"diseaseCode\":null,\"diseaseName\":\"冠心病\",\"diagnoseTime\":null},{\"id\":null,\"pirId\":null,\"healthRecordCode\":null,\"diseaseCode\":null,\"diseaseName\":\"高血压\",\"diagnoseTime\":null}]}";

*  反序列化json字符串得到对象。

RootObject rb = JsonConvert.DeserializeObject<RootObject>(jsonText);

*  处理对象，如输出人员姓名：

Console.WriteLine("姓名："+rb.baseInfo.name);

*  完整代码如下：

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    
    using Newtonsoft.Json;
    
    namespace JsonTest
    {
        
        public class Test
        {
        
            static void Main(string[] args)
            {
        
                string jsonText = "{\"baseInfo\":{\"id\":\"370171000bd8a85d144e6bbf9bb741aaeb307a\",\"name\":\"王尼玛\",\"addr\":null,\"presentAddressCounty\":\"历下区\",\"presentAddressTown\":\"建筑新村街道办事处\",\"presentAddressVillage\":\"历山东路居委会\",\"presentAddressHouseNum\":\"历山东路居委会历山东路2019号11-21-10\",\"isDisease\":\"1\",\"isTrauma\":null,\"isOperration\":null,\"isTransfusion\":null,\"idNo\":null},\"EhrPirDisease\":[{\"id\":null,\"pirId\":null,\"healthRecordCode\":null,\"diseaseCode\":null,\"diseaseName\":\"冠心病\",\"diagnoseTime\":null},{\"id\":null,\"pirId\":null,\"healthRecordCode\":null,\"diseaseCode\":null,\"diseaseName\":\"高血压\",\"diagnoseTime\":null}]}";
                Console.WriteLine(jsonText);
                RootObject rb = JsonConvert.DeserializeObject<RootObject>(jsonText);
                Console.WriteLine("姓名："+rb.baseInfo.name);
                Console.WriteLine("家庭住址："+rb.baseInfo.presentAddressHouseNum);
                foreach (EhrPirDisease ep in rb.EhrPirDisease)
                {
        
                    Console.WriteLine("既往病史："+ep.diseaseName);
                }
                //Console.ReadKey();
            }
    
            public class BaseInfo
            {
        
                public string id {
         get; set; }
                public string name {
         get; set; }
                public string addr {
         get; set; }
                public string presentAddressCounty {
         get; set; }
                public string presentAddressTown {
         get; set; }
                public string presentAddressVillage {
         get; set; }
                public string presentAddressHouseNum {
         get; set; }
                public string isDisease {
         get; set; }
                public string isTrauma {
         get; set; }
                public string isOperration {
         get; set; }
                public string isTransfusion {
         get; set; }
                public string idNo {
         get; set; }
            }
    
            public class EhrPirDisease
            {
        
                public string id {
         get; set; }
                public string pirId {
         get; set; }
                public string healthRecordCode {
         get; set; }
                public string diseaseCode {
         get; set; }
                public string diseaseName {
         get; set; }
                public string diagnoseTime {
         get; set; }
            }
    
            public class RootObject
            {
        
                public BaseInfo baseInfo {
         get; set; }
                public List<EhrPirDisease> EhrPirDisease {
         get; set; }
            }
        }
    }

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTUzMzk1Ng_size_16_color_FFFFFF_t_70 2]

*  对于json字符串中的数组，如本例中的EhrPirDiseas，用这篇文章里的在线工具会自动生成泛型列表List。可以直接把它当成数组使用。遍历数组的方法在此依然适用，例如代码中的：

foreach (EhrPirDisease ep in rb.EhrPirDisease)
        {
        
            Console.WriteLine("既往病史："+ep.diseaseName);
        }

![在这里插入图片描述][20191121110245725.png]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTUzMzk1Ng_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20191121104159445.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTUzMzk1Ng==,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTUzMzk1Ng_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20191121104252899.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTUzMzk1Ng==,size_16,color_FFFFFF,t_70
[20191121104936155.png]: https://img-blog.csdnimg.cn/20191121104936155.png
[img-OYUpnCMx-1574303811954_E_5CTypora_5Cc_5C1111831-20170817131223396-1034319951.png]: https://img-blog.csdnimg.cn/20191121104904350.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTUzMzk1Ng_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20191121105556833.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTUzMzk1Ng==,size_16,color_FFFFFF,t_70
[20191121110245725.png]: https://img-blog.csdnimg.cn/20191121110245725.png