附件：
具体使用：
把代码加入到安卓项目中，或者也可以把源代码打包成jar文件，导入项目
1、新建Http.java继承NanoHTTPD
public class Http extends NanoHTTPD{
MyLog log = null;
private static final String TAG = "Http";
private FragmentActivity activityContext;
public Http(int port,JSONObject config,FragmentActivity activityContext) {
super(port);
this.activityContext = activityContext;
if(log == null){
if(config==null){
config = new Utils().getConfig();
}
if(config.get("startLog")!=null && config.get("startLog").toString().equals("t")){
log = new MyLog(Http.class, true);
}else{
log = new MyLog(Http.class, false);
}
}
}
@Override
public Response serve(IHTTPSession session) {
try {
// 这一句话必须要写，否则在获取数据时，获取不到数据
session.parseBody(new HashMap<String, String>());
} catch (IOException e) {
e.printStackTrace();
} catch (ResponseException e) {
e.printStackTrace();
}
StringBuilder builder = new StringBuilder();
Method method = session.getMethod();
String uri = session.getUri();
Map<String, String> parms = session.getParms();
log.i(parms);
String data = parms.get("data");//这里的data是POST提交表单时key
log.i("method: "+method);
log.i("uri: "+uri);//如果有uri,会打印出uri
log.i("data: "+data);
if(uri.equals("/upload")){ //文件上传
log.i("=====upload=====");
return saveFile(session, parms, "");
}else if(uri.equals("/download")){ //文件下载
Response response = responseFile1(session, parms); //支持视频播放快进
return response;
}
else if(uri.equals("/getFileList")){ //提供文件列表接口
Response response = responseFileList(session, parms);
return response;
}else if(uri.equals("/createNew")){ //提供新建文件或文件夹列表接口
Response response = responsecreateNew(session, parms);
return response;
}else if(uri.equals("/deleteFileOrDir")){ //删除文件
Response response = responsedeleteFileOrDir(session, parms);
return response;
}else if(uri.equals("/getProperties")){ //获取属性
Response response = responseGetProperties(session, parms);
return response;
}else if(uri.equals("/controlPhone")){ //接收指令控制手机
Response response = responseControlPhone(session, parms);
return response;
}else{
if(uri.equals("/")){ //访问主页
String rs = readAssetsFile("web.html");
String ip = "";
try {
Map<String, String> ipMap = Utils.getLocalIpAddr(); //获取ip地址
for (Map.Entry<String,String> entry : ipMap.entrySet()) {
if( StringUtils.isNotBlank(entry.getValue()) && !entry.getValue().equals("127.0.0.1")){
ip = entry.getValue();
}
}
} catch (Exception e) {
e.printStackTrace();
}
System.out.println("ip:"+ip);
String localhost = ip+":"+new Utils().getConfig().getString("serverPort");
System.out.println("localhost:"+localhost);
rs = rs.replace("127.0.0.1:8888", localhost);
return Response.newFixedLengthResponse(rs);
}
//访问controller
if(uri.contains("Controller")){
Response response = responseController(session, parms,uri);
return response;
}
//如果是请求js、css、图片等资源文件
Map<String, String> map = Utils.getNameAndSuffix(uri);
String suffix = map.get("suffix");
if( suffix!=null && (suffix.equals("html")||suffix.equals("js")||suffix.equals("css")||suffix.equals("jpg")||suffix.equals("png")||suffix.equals("gif"))){
if(uri.indexOf("/")==0){
uri = uri.replaceFirst("/", "");
}
String rs = readAssetsFile(uri);
return Response.newFixedLengthResponse(rs);
}
}
//builder.append("404 not found"); // 反馈给调用者的数据
String rs = readAssetsFile("404.html");
builder.append(rs);
return Response.newFixedLengthResponse(builder.toString());
}
}
2、在MainActivity开启服务
try {
int port = 8080；
Http server = new Http(port,config,activityContext);
//开启http服务
server.start();
} catch (Exception e) {
e.printStackTrace();
}
//对于请求文件的，返回下载的文件
public Response responseFile1(IHTTPSession session,Map<String, String> parms){
try {
String id = parms.get("id");
log.i("responseFile1 id is:"+id);
String path = "";
if(StringUtils.isBlank(id)){
path = Utils.unescape(Utils.decodeStr(parms.get("path")));
}else{
//创建一个DatabaseHelper对象,创建explorer.db数据库
DatabaseHelper dbHelper = new DatabaseHelper(activityContext);
//获取一个只读的数据库对象
SQLiteDatabase db = dbHelper.getReadableDatabase();
path = DBUtils.queryFilePathById(db, id);
db.close();
}
// /storage/emulated/0/Download/oceans.mp4
log.i("responseFile path is:"+path);
File file = new File(path);
Map<String,String> map = Utils.getNameAndSuffix(file.getName());
String name = map.get("name"); //文件名（不带后缀）
String suffix = map.get("suffix"); //文件后缀
String mimeType = null; //返回类型
if(suffix.equals("mp4")){
mimeType = "video/mpeg4";
}else if(suffix.equals("txt")){
mimeType = "text/plain";
}else{
mimeType = "application/octet-stream"; // 二进制流，不知道下载文件类型
}
String range = null;
Map<String, String> headers = session.getHeaders();
for (String key : headers.keySet()) {
// Log.e(TAG, key + ":" + headers.get(key) + ", val:" + headers.get(key));
if ("range".equals(key)) {
range = headers.get(key); // 读取range header，包含要返回的媒体流位置等信息。
}
}
Response response = null;
if (range == null) {
// 如果range为空，返回该文件的所有媒体流
//文件输入流
FileInputStream fis = new FileInputStream(file);
// 返回OK，同时传送文件，为了安全这里应该再加一个处理，即判断这个文件是否是我们所分享的文件，避免客户端访问了其他个人文件
response = Response.newFixedLengthResponse(Status.OK,mimeType,fis,fis.available());
response.addHeader("Content-disposition","attachment;filename="+ URLEncoder.encode(file.getName(), "UTF-8"));//设置头部信息
response.addHeader("Content-Length", String.valueOf(file.length()));
} else {
// 根据range参数，返回制定位置的媒体流
response = getPartialResponse(file, range, mimeType);
}
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Calendar cd = Calendar.getInstance();
cd.setTimeZone(TimeZone.getTimeZone("GMT"));
cd.setTimeInMillis(file.lastModified());
response.addHeader("Last-Modified", sdf.format(cd.getTime()));
return response;
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
// 根据range中定义的范围返回媒体流
private Response getPartialResponse(File file, String rangeHeader, String mimeType) throws IOException {
String rangeValue = rangeHeader.trim().substring("bytes=".length());
Response response = null;
long fileLength = file.length();
long start, end;
if (rangeValue.startsWith("-")) {
end = fileLength - 1;
start = fileLength - 1
- Long.parseLong(rangeValue.substring("-".length()));
} else {
String[] range = rangeValue.split("-");
start = Long.parseLong(range[0]);
end = range.length > 1 ? Long.parseLong(range[1])
: fileLength - 1;
}
if (end > fileLength - 1) {
end = fileLength - 1;
}
// 解析range中的start，end位置
InputStream fileInputStream;
if (start <= end) {
long contentLength = end - start + 1;
fileInputStream = new FileInputStream(file);
fileInputStream.skip(start); //将媒体流跳转到start处，然后返回
response = Response.newFixedLengthResponse(Status.PARTIAL_CONTENT,mimeType,fileInputStream,fileInputStream.available());
response.addHeader("Content-Range", "bytes " + start + "-" + end + "/" + fileLength);
response.addHeader("Content-Length", contentLength + "");
return response;
} else {
long contentLength = end - start + 1;
fileInputStream = new FileInputStream(file);
fileInputStream.skip(end); //将媒体流跳转到start处，然后返回
//return new Response(Status.RANGE_NOT_SATISFIABLE, MIME_HTML, rangeHeader);
response = Response.newFixedLengthResponse(Status.RANGE_NOT_SATISFIABLE,mimeType,fileInputStream,fileInputStream.available());
response.addHeader("Content-Range", "bytes " + start + "-" + end + "/" + fileLength);
response.addHeader("Content-Length", contentLength + "");
}
return response;
}
//文件上传，接收文件保存
public Response saveFile(IHTTPSession session,Map<String, String> parms,String savePath){
try {
savePath = Utils.unescape(Utils.decodeStr(parms.get("toPath")));
String fileName = Utils.unescape(Utils.decodeStr(parms.get("filename")));
long filelength = Long.parseLong(parms.get("filelength"));
for (Map.Entry<String, String> entry : parms.entrySet()) {
final String paramsKey = entry.getKey();
log.i("paramsKey:"+paramsKey);
if (paramsKey.contains("file")) {
final String tmpFilePath = parms.get(paramsKey);
log.i("tmpFilePath:"+tmpFilePath);
File tmpFile = new File(tmpFilePath);
final File targetFile = new File(savePath + fileName);
String s = System.getProperty("java.io.tmpdir"); //获取上传文件保存的临时目录
log.i("====s:"+s);
File f = new File(s);
File[] files = f.listFiles();
for (File f1 : f.listFiles()) {
log.i("f1:"+f1.getAbsolutePath()+",len:"+Utils.readableFileSize(f1.length()));
if(filelength==f1.length()){
tmpFile = f1; //如果文件大小和上传的文件大小一致，说明是上传的文件
}
}
log.i("copy file now, source file path: "+tmpFile.getAbsoluteFile()+",target file path:"+targetFile.getAbsoluteFile());
//a copy file methoed just what you like
FileUtils.copyFile(tmpFile, targetFile);
//maybe you should put the follow code out
return Response.newFixedLengthResponse("success");
}
}
} catch (Exception e) {
log.e(e.getMessage());
}
return Response.newFixedLengthResponse("404,file not found");
}
