android获取webapi到底怎么做

byte[] byts = new byte[HttpContext.Current.Request.InputStream.Length] HttpContext.Current.Request.InputStream.Read(byts, 0, byts.Length) string req = System.Text.Encoding.Default.GetString(byts)这是直接获取post上来的字符流数据。什么编码送的什么编码收就没有问题了。如果是你发送的表单就Request.Form去收。记住字符流数据只能收一次哟。

直接用 http handler 或者 http webapi 处理 multipart-data 请求

java:

File file = new File("F:\\tmp\\taiping\\conf-1.json")

MultipartEntity mpEntity = new MultipartEntity()// 文件传输

ContentBody cbFile = new FileBody(file)

mpEntity.addPart("fileContent", cbFile)

CloseableHttpClient client = HttpClients.createDefault()

HttpPost post = new HttpPost("http://localhost:9999/api/values")

post.setEntity(mpEntity)

try {

CloseableHttpResponse response = client.execute(post)

String result = IOUtils.toString(response.getEntity().getContent())

System.out.println(result)

} catch (Exception e) {

e.printStackTrace()

}

.net http webapi

public HttpResponseMessage Post()

{

var content = Request.Content

var uploadDir = HttpContext.Current.Server.MapPath("~/Upload")

var newFileName = ""

var sp = new MultipartMemoryStreamProvider()

Task.Run(async () =>await Request.Content.ReadAsMultipartAsync(sp)).Wait()

foreach (var item in sp.Contents)

{

if (item.Headers.ContentDisposition.FileName != null)

{

var filename = item.Headers.ContentDisposition.FileName.Replace("\"", "")

newFileName = uploadDir + "\\" + filename

var ms = item.ReadAsStreamAsync().Result

using (var br = new BinaryReader(ms))

{

var data = br.ReadBytes((int)ms.Length)

File.WriteAllBytes(newFileName, data)

}

}

}

var result = new Dictionary<string, string>()

result.Add("result", newFileName)

var resp = Request.CreateResponse(HttpStatusCode.OK, result)

resp.Content.Headers.ContentType = new MediaTypeHeaderValue("text/plain")

return resp

}

WebApi编译后,其实就是一个dll文件,并不是一个可执行文件,所以它需要一个宿主.

我所知道的,webapi一共有三种宿主:

1. IIS

2. SelfHost

3. OwinSelfHost

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