web api 接收参数

Get方法

1.无参数

 https://localhost:5001/test/g1

[ApiController]
    [Route("[controller]/[action]")]
    public class TestController : ControllerBase
    {
        [HttpGet]
        public string g1()
        {
            return "abc";
        }
    }

 

2.两个参数

https://localhost:5001/test/g2?a=3&str=abc

        [HttpGet]
        public string g2(int a,string str)
        {
            return a.ToString()+str;
        }    

3. 参数是一个对象

        [HttpGet]
        public string g3(Student student)
        {
            return student.name;
        }

对象

    public class Student
    {
        public int age { get; set; }
        public string name { get; set; }
    }

body的 raw

{"age":18,"name":"tom"}

5.参数是集合

        [HttpGet]
        public string g4(List<Student> list)
        {
            string str = "";
            foreach (var stu in list)
            {
                str += stu.name;
            }
            return str;
        }

[{"age":18,"name":"tom"},{"age":22,"name":"liu"}]

Post

action默认就是post请求，可以不加[HttpPost]

1. 无参数

 

        [HttpPost]
        public string p1()
        {
            return "abc";
        }

2.一个参数 

        [HttpPost]
        public string p2([FromBody]string str)
        {
            return str;
        }

3.传对象

        [HttpPost]
        public string p3([FromBody] Student student)
        {
            return student.name;
        }

 

  

4.数组

["ab","cd"]

        [HttpPost]
        public string p4(string[] arr)
        {
            string str = "";
            foreach (var a in arr)
            {
                str += a;
            }
            return str;
        }

5.传集合对象

[{"age":18,"name":"tom"},{"age":22,"name":"liu"}]

        [HttpPost]
        public string p5(List<Student> list)
        {
            string str = "";
            foreach (var stu in list)
            {
                str += stu.name;
            }
            return str;
        }

 

6.传对象和参数混合

参数放到url里，

        [HttpPost]
        public string p6(List<Student> list,string a,string b)
        {
            string str = "";
            foreach (var stu in list)
            {
                str += stu.name;
            }
            return str+a+b;
        }

 同时

7.dynamic

{"age":18,"name":"tom"}

        public string p7(dynamic obj)
        {
            var str = Convert.ToString(obj);
            Student student = JsonConvert.DeserializeObject<Student>(str);
            return student.name;
        } 

[{"age":18,"name":"tom"},{"age":22,"name":"liu"}]

        public string p7(dynamic obj)
        {
            var str = Convert.ToString(obj);
            List<Student> studentList = JsonConvert.DeserializeObject<List<Student>>(str);
            string res = "";
            foreach (var student in studentList)
            {
                res += student.name;
            }
            return res;
        } 

8.JObject

9.传表单

 JDynamic