NanoHttpd保存上传的文件 [英] NanoHttpd save uploaded files
问题描述
我看了很多线程，但是找不到我的问题的答案...
因此，我可以在设备上启动网络服务器，并且当我尝试上传文件时，浏览器会显示成功上传"，但是我无法在设备上找到该文件，也不知道是否将其上传到设备上.
我已经设置了所有权限，并在serve方法中区分了post和get.
I have looked at many threads, but I can't find an answer to my question...
So I could start the webserver on my device, and when I try to upload a file the browser says "upload successfully", but I couldn't find the file on my device and I don't know whether it is uploaded to the device.
I have set all permissions and distinguish between post and get in my serve method.
我认为我必须保存参数Map<String, String>文件中的上传文件.
我该怎么办?这是正确的方法吗?
I think I have to save the uploaded files from the parameter Map<String, String> files.
How could I do that? Is it the right way?
这是我的代码段:
private class MyHTTPD extends NanoHTTPD {
public MyHTTPD() throws IOException {
super(PORT);
}
public Response serve(String uri, Method method, Map<String, String> headers, Map<String, String> parms, Map<String, String> files) {
if (method.equals(Method.GET)) {
return get(uri, method, headers, parms, files);
}
return post(uri, method, headers, parms, files);
}
public Response get(String uri, Method method, Map<String, String> headers, Map<String, String> parms, Map<String, String> files) {
String get = "<html><body><form name='up' method='post' enctype='multipart/form-data'>"
+ "<input type='file' name='file' /><br /><input type='submit'name='submit' "
+ "value='Upload'/></form></body></html>";
return new Response(get);
}
public Response post(String uri, Method method, Map<String, String> headers, Map<String, String> parms, Map<String, String> files) {
String post = "<html><body>Upload successfull</body></html>";
return new Response(post);
}
}
推荐答案
我知道，这是一个很晚的答复，但我将答案发布以供将来参考.
I know, this is a very late response but I am posting the answer for future reference.
NanoHttpd自动上传文件并保存在缓存目录中，并在文件和参数映射中返回信息(名称，路径等).在serve方法中编写以下代码.
NanoHttpd automatically upload the file and saved in cache directory and return information (name,path etc) in files and params map. Write the following code in serve method.
File dst = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).getAbsolutePath() +"/"+ parameters.get("myfile"));
File src = new File(files.get("myfile"));
try {
Utils.copy(src, dst);
}catch (Exception e){ e.printStackTrace();}
实用程序副本
public static void copy(File src, File dst) throws IOException {
InputStream in = new FileInputStream(src);
OutputStream out = new FileOutputStream(dst);
// Transfer bytes from in to out
byte[] buf = new byte[1024];
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
in.close();
out.close();
}
这篇关于NanoHttpd保存上传的文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
