C#通过反射获得一个类的私有字段

た入场券 2022-12-05 00:43 215阅读 0赞

### C\#通过反射获得一个类的私有字段 ###

*  背景
 *  代码实现
 *  运行结果
 *  关键代码

# 背景 #

在有的业务需求中我们需要把一个类的私有字段遍历出来，这时首先考虑的就是使用反射。下面看看具体实现的代码：

# 代码实现 #

1、BasUser.cs

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    
    namespace Wongoing.Basic
    { 
        /// <summary>
        /// 云端用户实体类
        /// </summary>
        public class BasUser
        { 
            #region 字段定义
    
            private int id;
            private string name;
            private int sex;
            private string account;
            private string phone;
            private string email;
            private string password;
            private DateTime gmtCreat;
            private bool isDelete;
            private string remark;
            private string salt;
            private DateTime lastActivityTime;
            private string ip;
            private string uuid;
    
            #endregion
    
            #region 属性定义
    
            public int Id
            { 
                get {  return id; }
                set {  id = value; }
            }
            public string Name
            { 
                get {  return name; }
                set {  name = value; }
            }
            public int Sex
            { 
                get {  return sex; }
                set {  sex = value; }
            }
            public string Account
            { 
                get {  return account; }
                set {  account = value; }
            }
            public string Phone
            { 
                get {  return phone; }
                set {  phone = value; }
            }
            public string Email
            { 
                get {  return email; }
                set {  email = value; }
            }
            public string Password
            { 
                get {  return password; }
                set {  password = value; }
            }
            public DateTime GmtCreat
            { 
                get {  return gmtCreat; }
                set {  gmtCreat = value; }
            }
            public bool IsDelete
            { 
                get {  return isDelete; }
                set {  isDelete = value; }
            }
            public string Remark
            { 
                get {  return remark; }
                set {  remark = value; }
            }
            public string Salt
            { 
                get {  return salt; }
                set {  salt = value; }
            }
            public DateTime LastActivityTime
            { 
                get {  return lastActivityTime; }
                set {  lastActivityTime = value; }
            }
            public string Ip
            { 
                get {  return ip; }
                set {  ip = value; }
            }
            public string Uuid
            { 
                get {  return uuid; }
                set {  uuid = value; }
            }
    
            #endregion
    
            #region 方法定义
    
            /// <summary>
            /// 转换为Url参数形式p1=v1&p2=v2
            /// </summary>
            /// <returns></returns>
            public string ToUrlParameters()
            { 
                StringBuilder sb = new StringBuilder();
    
                return sb.ToString();
            }
    
            #endregion
        }
    }

2、单元测试代码

[TestMethod]
    public void TestGetFields()
     { 
         Wongoing.Basic.BasUser user = new BasUser(){  Account = "test"};
         System.Reflection.FieldInfo[] fis = typeof(Wongoing.Basic.BasUser).GetFields(System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic);
         foreach(System.Reflection.FieldInfo fs in fis)
         { 
             Console.WriteLine(fs.Name + " = " + fs.GetValue(user));
         }
     }

# 运行结果 #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3psYmRtbQ_size_16_color_FFFFFF_t_70_pic_center]

# 关键代码 #

System.Reflection.FieldInfo[] fis = typeof(Wongoing.Basic.BasUser).GetFields(System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic);

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