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• 框架：asp.net core webapi
• asp.net core webapi接收参数，请求变量设置

接收multipart/form-data、application/x-www-form-urlencoded类型参数

Post ([FromForm]TokenRequestInput user)
可以接收发送类型为multipart/form-data、application/x-www-form-urlencoded的数据

  [HttpPost]public async Task<IActionResult> ChangePhoneNum([FromForm] TokenRequestInput user){     return Ok(11222);}/// <summary>/// 用户信息/// </summary>public class TokenRequestInput{/// <summary>/// 微信 用户的openid/// </summary>public string? openid { get; set; }/// <summary>/// 微信头像图片，base64字符串/// </summary>public string? head_img_base64 { get; set; }/// <summary>/// 微信昵称/// </summary>public string? nichen { get; set; }}

接收URL参数

请求地址
http://localhost:5170/api/User/GetToken?code=22222

 [HttpGet]public async Task<IActionResult> GetToken(string code){var result = await wxAppletLoginBll.GetLoginToken(code);return Ok(result);}

接收上传的文件

IFormFile file这个参数是接收文件，mimeType=multipart/form-data
参数userId，通过url参数传入

/// <summary>
/// 接收上传的文件
/// </summary>
/// <param name="file">文件二进制</param>
/// <param name="userId">url参数</param>
/// <returns></returns>
[HttpPost]
public async Task<IActionResult> GetAdd(IFormFile file, string userId)
{ return Ok("ok");
}

webapi接收json参数

发送json参数

{"openid": "string","head_img_base64": "string","nichen": "string"
}

  [HttpPost]public async Task<IActionResult> AddUser(TokenRequestInput user){    return Ok(3344);}

完整控制器，启动类参考

using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using WebProjectNet7.DataBaseEntity.Entity;
using WebProjectNet7.IBLL;
using WebProjectNet7.ViewEntity;namespace Api_BigData.Controllers
{/// <summary>/// 预警/// </summary>[Route("api/[controller]/[action]")][MyRequestFilter][ApiController]public class WarningController : ControllerBase{readonly IWaringLogBll waringLogBll = AppServicesHelpter.GetServices<IWaringLogBll>();/// <summary>/// 设置预警记录，已经读了/// </summary>/// <param name="logId">预警id</param>/// <returns></returns>[HttpGet]public async Task<IActionResult> SetReadedAsync(long logId){var data = await waringLogBll.SetReadedAsync(logId);return Ok(data);}}
}

Program.cs

using Api_BigData;
using InterfaceRegister;
using Microsoft.AspNetCore.Html;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.FileProviders;
using Microsoft.Extensions.Options;
using Microsoft.OpenApi.Models;
using Mysqlx;
using Newtonsoft.Json.Serialization;
using System.Reflection;
using WebProjectNet7.DataBaseEntity.Tool;
using WebProjectNet7.IBLL;
using WebProjectNet7.IBLL_impl;
using WebProjectNet7.IDAO;
using WebProjectNet7.IDAO_impl;
using WebProjectNet7.ViewEntity;const string title = "测试， 大数据webapi";var builder = WebApplication.CreateBuilder(args);// Add services to the container.
builder.Services.AddControllers(ops =>{//全局异常过滤器，注册ops.Filters.Add<ExceptionFilter>();}
).AddNewtonsoftJson(options =>
{
//不设置，字段为首字母小写；options.SerializerSettings.ContractResolver = new DefaultContractResolver();options.SerializerSettings.DateFormatString = "yyyy-MM-dd HH:mm:ss";
});// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen(options =>
{options.SwaggerDoc("v1", new OpenApiInfo { Title = title, Version = "1.0" });// 让Swagger显示每个接口的注释var xmlFilename = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";options.IncludeXmlComments(Path.Combine(AppContext.BaseDirectory, xmlFilename));//实体字段描述options.IncludeXmlComments(Path.Combine(AppContext.BaseDirectory, "WebProjectNet7.DataBaseEntity.xml"));options.IncludeXmlComments(Path.Combine(AppContext.BaseDirectory, "WebProjectNet7.ViewEntity.xml"));
});//依赖注入
//微信业务接口
builder.Services.AddSingleton<IWxAppletLoginBll, WxAppletLoginBll_impl>();//公共部分接口
RegisterHandle.Register(builder);//IHttpContextAccessor 在其他程序集中获取HttpContext
builder.Services.AddHttpContextAccessor();var app = builder.Build(); Configure the HTTP request pipeline.
//if (app.Environment.IsDevelopment())
//{
//    app.UseSwagger();
//    app.UseSwaggerUI();
//}//生产环境也使用
app.UseSwagger();
app.UseSwaggerUI(options =>
{options.DocumentTitle = title;
});app.Use(async (context, next) =>
{if (context.Request.Method == "OPTIONS"){//允许处理跨域context.Response.Headers.Add("Access-Control-Allow-Origin", "*");context.Response.Headers.Add("Access-Control-Allow-Headers", "*");context.Response.Headers.Add("Access-Control-Allow-Methods", "*");await context.Response.CompleteAsync();}else{//允许处理跨域context.Response.Headers.Add("Access-Control-Allow-Origin", "*");context.Response.Headers.Add("Access-Control-Allow-Headers", "*");context.Response.Headers.Add("Access-Control-Allow-Methods", "*");await next();}
});string direxport = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "wx_head_img");
if (!System.IO.Directory.Exists(direxport))
{System.IO.Directory.CreateDirectory(direxport);
}app.UseStaticFiles(new StaticFileOptions()
{RequestPath = new PathString("/wx_head_img"),FileProvider = new PhysicalFileProvider(direxport)
});app.UseAuthorization();app.MapControllers();AppServicesHelpter.App = app;app.MapGet("/", () => "Hello World，欢迎," + title + "，访问/swagger 查看接口文档");app.Run();