Android二进制文件转码到Base64并通过Post进行提交

类似于Ruby，在上面调试成功后，将功能迁移到了Android应用上面。

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;

import android.util.Base64;
import android.util.Log;

	/**
	 * TODO FIX Check the file length, it's long not int.This may lead the
	 * problem.
	 * 
	 * @param fileName
	 * @param url
	 * @return
	 */
	public static boolean httpPostBase64(String fileName, String url) {
		try {
			File file = new File(fileName);
			FileInputStream in = new FileInputStream(file);
			byte[] buffer = new byte[(int) file.length() + 100];
			int length = in.read(buffer);
			String data = Base64.encodeToString(buffer, 0, length,
					Base64.DEFAULT);

			HttpPost httpRequest = new HttpPost(url);
			/*
			 * NameValuePair实现请求参数的封装
			 */
			List<NameValuePair> params = new LinkedList<NameValuePair>();
			params.add(new BasicNameValuePair("data", data));

			/* 添加请求参数到请求对象 */
			httpRequest.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
			/* 发送请求并等待响应 */
			HttpResponse httpResponse = new DefaultHttpClient()
					.execute(httpRequest);
			/* 若状态码为200 ok */
			if (httpResponse.getStatusLine().getStatusCode() != 200) {
				Log.d("Code", httpResponse.getStatusLine().toString());
				return false;
			}

		} catch (Exception e) {
			for(StackTraceElement s:e.getStackTrace())
				Log.d("Exception",s.toString());
			Log.d("Exception",e.getLocalizedMessage());
			
			return false;
		}

		return true;
	}