使用NanoHttpd从POST请求中检索文件 [英] Retrieve file from POST request with NanoHttpd

问题描述

我正在尝试使用NanoHttpd库通过表单中的POST请求将文件上传到我的Android服务器。我确实收到了服务器端的POST请求。我的问题是如何从POST请求中检索文件，以便将其保存在设备内存中的某个位置。

I am trying to use the NanoHttpd library to upload files to my Android server by using a POST request from a form. I do receive the POST request on the server side. My question is how to retrieve the file from the POST request so I can save it somewhere in the device memory.

表单：

<form action='?' method='post' enctype='multipart/form-data'>
    <input type='file' name='file' />`enter code here`
    <input type='submit'name='submit' value='Upload'/>
</form>

服务方式：

@Override
public Response serve (IHTTPSession session) {
Method method = session.getMethod();
String uri = session.getUri();

    if (Method.POST.equals(method)) {
      //get file from POST and save it in the device memory
    }

    ...

}

推荐答案

昨晚我发现解决方案很容易上传文件....

Last night i found solution it's very easy to upload file....

首先你管理'TempFileManager'。它处理临时文件目录，因此它创建文件并在工作完成后自动删除，如复制，读取，编辑，移动等...

First you have manage 'TempFileManager'. It's handle temp file directory so it' create file and delete automatically after your work finish like copy,read,edit,move etc...

   server.setTempFileManagerFactory(new ExampleManagerFactory());

所以现在你没有管理临时文件它会自动工作......

So now you not have manage temp file it's work automatically...

像这样管理发布请求

private Response POST(IHTTPSession) {

    try {
        Map<String, String> files = new HashMap<String, String>();
        session.parseBody(files);

        Set<String> keys = files.keySet();
        for(String key: keys){
            String name = key;
            String loaction = files.get(key);

            File tempfile = new File(loaction);
            Files.copy(tempfile.toPath(), new File("destinamtio_path"+name).toPath(), StandardCopyOption.REPLACE_EXISTING);
        }


    } catch (IOException | ResponseException e) {
        System.out.println("i am error file upload post ");
        e.printStackTrace();
    }

    return createResponse(Status.OK, NanoHTTPD.MIME_PLAINTEXT, "ok i am ");
}

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