package com.figo.uploadfile;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class UploadfileActivity extends Activity
{
// 要上傳的文件路徑,理論上可以傳輸任何文件,實際使用時根據需要處理
private String uploadFile = "/sdcard/testimg.jpg";
private String srcPath = "/sdcard/testimg.jpg";
// 服務器上接收文件的處理頁面,這裏根據需要換成自己的
private String actionUrl = "http://10.100.1.208/receive_file.php";
private TextView mText1;
private TextView mText2;
private Button mButton;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mText1 = (TextView) findViewById(R.id.myText2);
mText1.setText("文件路徑:\n" + uploadFile);
mText2 = (TextView) findViewById(R.id.myText3);
mText2.setText("上傳網址:\n" + actionUrl);
/* 設置mButton的onClick事件處理 */
mButton = (Button) findViewById(R.id.myButton);
mButton.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
uploadFile(actionUrl);
}
});
}
/* 上傳文件至Server,uploadUrl:接收文件的處理頁面 */
private void uploadFile(String uploadUrl)
{
String end = "\r\n";
String twoHyphens = "--";
String boundary = "******";
try
{
URL url = new URL(uploadUrl);
HttpURLConnection httpURLConnection = (HttpURLConnection) url
.openConnection();
// 設置每次傳輸的流大小,可以有效防止手機因爲內存不足崩潰
// 此方法用於在預先不知道內容長度時啓用沒有進行內部緩衝的 HTTP 請求正文的流。
httpURLConnection.setChunkedStreamingMode(128 * 1024);// 128K
// 允許輸入輸出流
httpURLConnection.setDoInput(true);
httpURLConnection.setDoOutput(true);
httpURLConnection.setUseCaches(false);
// 使用POST方法
httpURLConnection.setRequestMethod("POST");
httpURLConnection.setRequestProperty("Connection", "Keep-Alive");
httpURLConnection.setRequestProperty("Charset", "UTF-8");
httpURLConnection.setRequestProperty("Content-Type",
"multipart/form-data;boundary=" + boundary);
DataOutputStream dos = new DataOutputStream(
httpURLConnection.getOutputStream());
dos.writeBytes(twoHyphens + boundary + end);
dos.writeBytes("Content-Disposition: form-data; name=\"uploadedfile\"; filename=\""
+ srcPath.substring(srcPath.lastIndexOf("/") + 1)
+ "\""
+ end);
dos.writeBytes(end);
FileInputStream fis = new FileInputStream(srcPath);
byte[] buffer = new byte[8192]; // 8k
int count = 0;
// 讀取文件
while ((count = fis.read(buffer)) != -1)
{
dos.write(buffer, 0, count);
}
fis.close();
dos.writeBytes(end);
dos.writeBytes(twoHyphens + boundary + twoHyphens + end);
dos.flush();
InputStream is = httpURLConnection.getInputStream();
InputStreamReader isr = new InputStreamReader(is, "utf-8");
BufferedReader br = new BufferedReader(isr);
String result = br.readLine();
Toast.makeText(this, result, Toast.LENGTH_LONG).show();
dos.close();
is.close();
} catch (Exception e)
{
e.printStackTrace();
setTitle(e.getMessage());
}
}
}