Android URL上传图片

public class PhotoUpload extends Activity {
private String newName ="image.jpg";
private String uploadFile ="/sdcard/image.JPG";
private String actionUrl ="http://192.168.0.71:8086/HelloWord/myForm";
private TextView mText1;
private TextView mText2;
private Button mButton;
@Override
publicvoid onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.photo_upload);
mText1 = (TextView) findViewById(R.id.myText2);
//"文件路径：\n"+
mText1.setText(uploadFile);
mText2 = (TextView) findViewById(R.id.myText3);
//"上传网址：\n"+
mText2.setText(actionUrl);
/* 设置mButton的onClick事件处理 */
mButton = (Button) findViewById(R.id.myButton);
mButton.setOnClickListener(new View.OnClickListener()
{
publicvoid onClick(View v)
{
uploadFile();
}
});
}
/* 上传文件至Server的方法 */
privatevoid 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 =newbyte[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("上传成功"+b.toString().trim());
/* 关闭DataOutputStream */
ds.close();
}
catch(Exception e)
{
showDialog("上传失败"+e);
}
}
/* 显示Dialog的method */
privatevoid showDialog(String mess)
{
new AlertDialog.Builder(PhotoUpload.this).setTitle("Message")
.setMessage(mess)
.setNegativeButton("确定",new DialogInterface.OnClickListener()
{
publicvoid onClick(DialogInterface dialog, int which)
{
}
})
.show();
}
}