AndroidAsync
使用AndroidAsync: AndroidAsync
引入AndroidAsync
implementation ‘com.koushikdutta.async:androidasync:2.2.1’
###主要方法
开启服务
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| private AsyncHttpServer server = new AsyncHttpServer();
public void startServer() {
//主页
server.get("/", new HttpServerRequestCallback() {
@Override
public void onRequest(AsyncHttpServerRequest request, AsyncHttpServerResponse response) {
//需要新建目录,存放文件
String filePath = Environment.getExternalStorageDirectory() + "/my_android_server/";
String html = String.format(sendHtml, getFiles(filePath));
Log.d(TAG, html);
response.send(html);
}
});
//下载文件
server.get("/file", new HttpServerRequestCallback() {
@Override
public void onRequest(AsyncHttpServerRequest request, AsyncHttpServerResponse response) {
String name = request.getQuery().getString("name");
String filePath = Environment.getExternalStorageDirectory() + "/my_android_server/" + name;
File file = new File(filePath);
if (file.exists()) {
response.sendFile(file);
} else {
Log.d(TAG, "file path = " + file.getAbsolutePath() + "not exist");
}
}
});
}
server.listen(PORT_LISTEN_DEFALT);//设置端口号
|
获取IP
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| public static String getHostIp() {
try {
Enumeration<NetworkInterface> allNetInterfaces = NetworkInterface.getNetworkInterfaces();
while (allNetInterfaces.hasMoreElements()) {
NetworkInterface netInterface = allNetInterfaces.nextElement();
Enumeration<InetAddress> addresses = netInterface.getInetAddresses();
while (addresses.hasMoreElements()) {
InetAddress ip = addresses.nextElement();
if (ip instanceof Inet4Address
&& !ip.isLoopbackAddress()
&& !ip.getHostAddress().contains(":")) {
return ip.getHostAddress();
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
|
定义返回网页html
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| private String sendHtml = "<!DOCTYPE html>\n" +
"<html>\n" +
"<head lang=\"en\">\n" +
" <meta charset=\"UTF-8\">\n" +
" <title>main</title>\n" +
" <meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\n" +
" <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge\">\n" +
"<body>\n" +
"%s</body>\n" +
"</html>";
String getFiles(String path) {
StringBuilder files = new StringBuilder();
File file = new File(path);
File[] tempList = file.listFiles();
if (null == tempList || tempList.length == 0) {
Log.d(TAG, "文件夹不存在或者文件夹内无文件");
return "请在根目录新建my_android_server并放入文件";
}
for (File value : tempList) {
if (value.isFile()) {
Log.d(TAG, value.getName());
String fileName = value.getName();
String fileURL = "<a href=\"http://%s:5000/file?name=%s\">%s</a><br/>\n";
String ss = String.format(fileURL, getHostIp(), fileName, fileName);
files.append(ss);
}
// if (value.isDirectory()) {
//这里就不递归了，
// }
}
return files.toString();
}
|
使用
在根目录新建my_android_server文件夹,在里面放入文件
局域网内打开“http://IP:端口号”即可打开网页,网页会显示文件夹内文件,点击文件即可下载