- package irdc.ex08_11;
- /* import相关class */
- import java.io.DataOutputStream;
- import java.io.FileInputStream;
- import java.io.InputStream;
- import java.net.HttpURLConnection;
- import java.net.URL;
- import android.app.Activity;
- import android.app.AlertDialog;
- import android.content.DialogInterface;
- import android.os.Bundle;
- import android.view.View;
- import android.widget.Button;
- import android.widget.TextView;
- public class EX08_11 extends Activity
- {
- /* 变量声明
- * newName:上传后在服务器上的文件名称
- * uploadFile:要上传的文件路径
- * actionUrl:服务器上对应的程序路径 */
- private String newName="image.jpg";
- private String uploadFile="/data/data/irdc.ex08_11/image.jpg";
- private String actionUrl="http://10.10.100.33/upload/upload.jsp";
- 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("文件路径:n"+uploadFile);
- mText2 = (TextView) findViewById(R.id.myText3);
- mText2.setText("上传网址:n"+actionUrl);
- /* 设置mButton的onClick事件处理 */
- mButton = (Button) findViewById(R.id.myButton);
- mButton.setOnClickListener(new View.OnClickListener()
- {
- public void onClick(View v)
- {
- uploadFile();
- }
- });
- }
- /* 上传文件至Server的方法 */
- private void uploadFile()
- {
- String end = "rn";
- String twoHyphens = "--";
- String boundary = "*****";
- try
- {
- URL url =new URL(actionUrl);
- HttpURLConnection con=(HttpURLConnection)url.openConnection();
- /* 允许Input、Output,不使用Cache */
- con.setDoInput(true);
- con.setDoOutput(true);
- con.setUseCaches(false);
- /* 设置传送的method=POST */
- con.setRequestMethod("POST");
- /* setRequestProperty */
- con.setRequestProperty("Connection", "Keep-Alive");
- con.setRequestProperty("Charset", "UTF-8");
- con.setRequestProperty("Content-Type",
- "multipart/form-data;boundary="+boundary);
- /* 设置DataOutputStream */
- DataOutputStream ds =
- new DataOutputStream(con.getOutputStream());
- ds.writeBytes(twoHyphens + boundary + end);
- ds.writeBytes("Content-Disposition: form-data; " +
- "name="file1";filename="" +
- newName +""" + end);
- ds.writeBytes(end);
- /* 取得文件的FileInputStream */
- FileInputStream fStream = new FileInputStream(uploadFile);
- /* 设置每次写入1024bytes */
- int bufferSize = 1024;
- byte[] buffer = new byte[bufferSize];
- int length = -1;
- /* 从文件读取数据至缓冲区 */
- while((length = fStream.read(buffer)) != -1)
- {
- /* 将资料写入DataOutputStream中 */
- ds.write(buffer, 0, length);
- }
- ds.writeBytes(end);
- ds.writeBytes(twoHyphens + boundary + twoHyphens + end);
- /* close streams */
- fStream.close();
- ds.flush();
- /* 取得Response内容 */
- InputStream is = con.getInputStream();
- int ch;
- StringBuffer b =new StringBuffer();
- while( ( ch = is.read() ) != -1 )
- {
- b.append( (char)ch );
- }
- /* 将Response显示于Dialog */
- showDialog(b.toString().trim());
- /* 关闭DataOutputStream */
- ds.close();
- }
- catch(Exception e)
- {
- showDialog(""+e);
- }
- }
- /* 显示Dialog的method */
- private void showDialog(String mess)
- {
- new AlertDialog.Builder(EX08_11.this).setTitle("Message")
- .setMessage(mess)
- .setNegativeButton("确定",new DialogInterface.OnClickListener()
- {
- public void onClick(DialogInterface dialog, int which)
- {
- }
- })
- .show();
- }
- }