.net core WebApi 接收不到 application/json; charset=utf-8 的值

qiushangju 2019-12-31 04:36:02

当参数标记为 [FromBody] 时接收不到 application/json; charset=utf-8的值只能接收到Content-Type=application/json的值 ,
怎么处理才能接收到application/json; charset=utf-8的值呢??

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Eason0807 2021-05-20

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引用 6 楼 Null_Reference 的回复:

我感觉controller 上面加一个[ApiController] 就解决了

正解，楼主创建的不是api控制器

Null_Reference 2021-05-19

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我感觉controller 上面加一个[ApiController] 就解决了

爱起床的小貔貅 2021-05-19

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兄弟解决了吗

一只平凡的骡子 2020-07-17

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如果已结请给分

一只平凡的骡子 2020-07-17

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1.web.config 需要配置跨域


<httpProtocol>
      <customHeaders>
        <add name="Access-Control-Allow-Methods" value="GET, POST, PUT, DELETE, OPTIONS " />
        <add name="Access-Control-Allow-Headers" value="x-requested-with,content-type" />
        <add name="Access-Control-Allow-Origin" value="*" />
      </customHeaders>
    </httpProtocol>

2.前端代码


  $("#save").click(function(){ 
		jQuery.support.cors = true;
		var jdata = {"access_token":"1231","createtime":"123","expires_in":"123"};
		$.ajax({
			url: 'http://192.168.1.81:8492/api/values/testPost',
			type: "POST",
		    contentType:"application/json; charset=urf-8",   //指定的是类型json串,不是 json 对象
			dataType:'json',    
			data:  JSON.stringify(jdata),
			crossDomain: true,
			success: function (returndata) {
				alert(JSON.stringify(returndata));
			},
			error: function (returndata) {
				alert(2);
			}
		});
    });

3.后端api


    [HttpPost, HttpOptions]
        [ActionName("testPost")]
        public ApiResult testPost()
        {
            try
            {
                // 接收
                Stream inputstream = HttpContext.Current.Request.InputStream;
                byte[] b = new byte[inputstream.Length];
                inputstream.Read(b, 0, (int)inputstream.Length);
                string inputstr = UTF8Encoding.UTF8.GetString(b);

                return new ApiResult
                {
                    IsError = false,
                    Msg = "获取成功",
                    PageCount = 1,
                    Result = inputstr
                };
            }
            catch (Exception err)
            {
                return new ApiResult
                {
                    IsError = true,
                    Msg = "失败",
                    PageCount = 1,
                    Result = "testPost"
                };
            }
        }

4.答应结果