反射的学习笔记--sql语句生成

学生实体类

 public class Student
    {
    
        public int Id { get; set; }
        public string Name { get; set; }
        public int Age { get; set; }
        public string Address { get; set; }
        public string Tel { get; set; }
        public int GrateId { get; set; }
        public Grate grate { get; set; }

    }

年级实体类

public class Grate
    {
         
        public int Id { get; set; }
        public string Name { get; set; }
        public List<Student> Students { get; set; }
    }

反射实现代码

 public class Entity<T>
    {
        public string GetSql(T en) 
        {
            Type ty = en.GetType();
            PropertyInfo []pf = ty.GetProperties();
            StringBuilder sb = new StringBuilder();
            sb.Append("insert into "+ty.Name+" (");
            foreach (PropertyInfo item in pf)
            {
               

                sb.Append(item.Name + ",");
            }
        
            sb.Remove(sb.Length - 1, 1);
            sb.Append(") ");
            sb.Append("values(");
            foreach (PropertyInfo item in pf)
            {
                

                sb.Append("@" + item.Name + ",");
            }
            sb.Remove(sb.Length - 1, 1);
            sb.Append(")");
            return sb.ToString(); ;
        }
        


    }

反射生成的sql 反射学习笔记