我想让我的应用程序获取手机上的所有媒体,然后将实际数据发送到我的服务器。
我在电话上获得了媒体的所有绝对路径,现在我想要管理请求。有没有办法制作某种请求数组,它会一直运行直到它为空?
如果可以,我可以将其升级为优先级数组吗?例如,有人上传了100MB的媒体,我希望他们继续浏览我的应用程序,如果他们采取行动,那个特定的操作将进入该请求数组轮询,但具有高优先级?好像我要发送的下一个请求是我刚创建的那个?
我还需要它作为防撞证明,如果我的应用程序崩溃,我仍然会知道我停在哪里并从那里继续而不是从头开始。
我知道这有很多要求,但我没有经验足以知道它是否可能。
答案 0 :(得分:1)
就我的研究而言,这是我的解决方案。
创建一个名为myThread
的可调用类,它将处理请求本身,并将删除和更改SQLite DB上请求的状态。
public class MyThread implements Callable {
private File _file;
private Context context;
private DBHelper helper;
public MyThread(File file, Context context) {
this._file = file;
this.context = context;
}
@Override
public String call() throws Exception {
HttpClient client = Utility.getNewHttpClient();
HttpContext localContext = new BasicHttpContext();
HttpPost post = new HttpPost("http://192.168.9.62/mobile_api/timeline/moment/upload");
try {
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
FileBody fileBody = new FileBody(_file);
builder.addPart("content", fileBody);
builder.addPart("type", new StringBody("file", ContentType.TEXT_PLAIN));
builder.addPart("title", new StringBody("service test", ContentType.TEXT_PLAIN));
builder.addPart("userType", new StringBody("user", ContentType.TEXT_PLAIN));
builder.addPart("uid", new StringBody(MyInfiActivity.friends_uid, ContentType.TEXT_PLAIN));
builder.addPart("momentId", new StringBody("1", ContentType.TEXT_PLAIN));
builder.addPart("storyId", new StringBody("8", ContentType.TEXT_PLAIN));
Utility.addCookiesToPost(post);
post.setEntity(builder.build());
client.execute(post, localContext);
} catch (IOException e) {
Log.e("Callable try", post.toString());
}
return "1";
}
IntentService
创建5个线程(为了更好的性能...不确定它有多好)每个线程获得MyThread
可调用,以便在完成时知道要在DB上删除哪个条目。
@Override
protected void onHandleIntent(Intent intent) {
helper = new DBHelper(getApplicationContext());
executor = Executors.newFixedThreadPool(5);
File file;
Log.e("requestsExists",helper.requestsExists()+"");
while(helper.requestsExists()){
ArrayList<String> requestArr = helper.getRequestsToExcute(5);
//checks if the DB requests exists
if(!requestArr.isEmpty()){
//execute them and delete the DB entry
for(int i=0;i<requestArr.size();i++){
file = new File(requestArr.get(i));
Log.e("file",file.toString());
Future<String> future = executor.submit(new MyThread(file,getApplicationContext()));
Log.e("future object", future.toString());
try {
long idToDelete = Long.parseLong(future.get());
Log.e("THREAD ANSWER", future.get() + "");
helper.deleteRequest(idToDelete);
} catch (InterruptedException e) {
Log.e("future try", "");
} catch (ExecutionException e) {
e.printStackTrace();
}
}
}
}
executor.shutdown();
}
注意:数据是硬编码用于测试,将根据我将发送的媒体包含变量