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radiogaga
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45 bài
| 25-7-2019 9:17:38
package com.dhag.securestamp;
import android.os.AsyncTask;
import android.util.Log;
import java.util.ArrayList;
public class ApiMultipart extends AsyncTask {
public ApiMultipart() {}
private String file_name = "sample.jpg";
private byte[] fileContent;
private ArrayList collections = new ArrayList();
private SomeEventListener listener;
public void setFileData(String file_name, byte[] inputData) {
this.file_name = file_name;
this.fileContent = inputData;
}
public void addFormData(String name, String value) {
NameValue nv = new NameValue(name, value);
collections.add(nv);
}
public void setSomeEventListener (SomeEventListener listener) { this.listener = listener; }
@Override
protected String doInBackground(String... params) {
String baseUrl = params[0];
String data = "";
try {
HttpClient client = new HttpClient(baseUrl);
client.connectForMultipart();
for(int i =0; i < collections.size(); i++) {
NameValue obj = (NameValue)collections.get(i);
client.addFormPart(obj.getName(), obj.getValue());
}
client.addFilePart("fileUp", file_name, fileContent);
client.finishMultipart();
data = client.getResponse();
}
catch(Exception ex) {
ex.printStackTrace();
}
return data;
}
@Override
protected void onPostExecute(String data) {
if (listener != null)
listener.onCompleteEvent ();
}
}
============
package com.dhag.securestamp;
import android.os.AsyncTask;
import android.util.Log;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedInputStream;
import java.io.BufferedWriter;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
public class ApiPost extends AsyncTask {
public String msg;
private SomeEventListener listener;
private JSONObject jsonObject = null;
private String http_method = "POST";
public ApiPost() {}
public void setJsonObj(JSONObject myObject){
jsonObject = myObject;
}
public void setMethod(String method) { http_method = method; }
public void setSomeEventListener (SomeEventListener listener) { this.listener = listener; }
@Override
protected String doInBackground(String... urls) {
// params comes from the execute() call: params[0] is the url.
try {
try {
return HttpPost(urls[0]);
} catch (JSONException e) {
e.printStackTrace();
return "Error!";
}
} catch (IOException e) {
return "Unable to retrieve web page. URL may be invalid.";
}
}
private String HttpPost(String myUrl) throws IOException, JSONException {
URL url = new URL(myUrl);
// 1. create HttpURLConnection
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod(http_method);
conn.setRequestProperty("Content-Type", "application/json; charset=utf-8");
// 2. build JSON object
//JSONObject jsonObject = buidJsonObject();
// 3. add JSON content to POST request body
if(jsonObject != null)
setPostRequestContent(conn, jsonObject);
// 4. make POST request to the given URL
conn.connect();
// 5. get return json
InputStream inStream = new BufferedInputStream(conn.getInputStream());
ByteArrayOutputStream into = new ByteArrayOutputStream();
byte[] buf = new byte[4096];
for (int n; 0 < (n = inStream.read(buf));) {
into.write(buf, 0, n);
}
into.close();
msg = new String(into.toByteArray(), "UTF-8");
// 6. return response message
return conn.getResponseMessage() + "";
}
private void setPostRequestContent(HttpURLConnection conn, JSONObject jsonObject) throws IOException {
OutputStream os = conn.getOutputStream();
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(os, "UTF-8"));
writer.write(jsonObject.toString());
Log.i("ApiPost", jsonObject.toString());
writer.flush();
writer.close();
os.close();
}
@Override
protected void onPostExecute(String result) {
if (listener != null)
listener.onCompleteEvent ();
}
}
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