Android程序研发源码Android 手机文件上传示例.zip

package com.test; 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 Main 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/image.jpg"; private String actionUrl="http://l27.0.0.1/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 = "\r\n"; 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(Main.this).setTitle("Message") .setMessage(mess) .setNegativeButton("确定",new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { } }) .show(); } }