Question

我已经在HTTP Request中创建了一个用于发布多个参数的示例。但是我无法在Web Api控制器中分配值。请检查以下代码。

.ts

deleteEntry(entryId: number, entryActiveFlag: string): Observable<number> {
        let dataUrl = `http/localhost:8080/Entry/DeleteEntry`;
        let params = { entryId, entryActiveFlag};
        //params.append(entryId);
        //params.append('entryActiveFlag', entryActiveFlag);
        let body = JSON.stringify(params );
        return this.http.post(dataUrl, body)
            .map(res => res.json())
            .catch(this.handleError);
    }

.WebApi

 [HttpPost("DeleteEntry")]
    public  IActionResult DeleteEntry([FromBody]int entryId,string entryActiveFlag)
    {
        return Ok( _service.DeleteEntry(entryId, entryActiveFlag));
    }

Answer 1

将输入详细信息包装在一个类中，并将类对象作为参数提供给Web API方法。在您的情况下，您可以添加以下类 -

[HttpPost("DeleteEntry")]
    public  IActionResult DeleteEntry(EntryDetails entryDetails)
    {
        return Ok( _service.DeleteEntry(entryDetails.EntryId, entryDetails.EntryActiveFlag));
    }

您的网络方法将是

ImageIcon img = new ImageIcon("/Users/me/location/mygame/res/logo.png");
f.setIconImage(img.getImage());

因此也改变了从客户端方法的调用。

Answer 2

尝试以下代码

let body = "entryId=23&entryActiveFlag=true";
let options = {
    headers: new HttpHeaders().set('Content-Type', 'application/x-www-form-urlencoded')
};
     return this.http.post(dataUrl, body,options )
                .map(res => res.json())
                .catch(this.handleError);

或者尝试以下代码

const formData = new FormData();
formData.append("key","value");
let options = {
    headers: new HttpHeaders().set('Content-Type', 'application/x-www-form-urlencoded')
};

 return this.http.post(dataUrl, formData,options )
            .map(res => res.json())
            .catch(this.handleError);

HTTP post请求中的多个参数不在Asp.net webApi 2.0中绑定

2 个答案: