public class HttpAssist {

private static final String TAG = "uploadFile";

private static final int TIME_OUT = 10 * 10000000; // 超时时间

private static final String CHARSET = "utf-8"; // 设置编码

public static final String SUCCESS = "1";

public static final String FAILURE = "0";

//上传文件

public static String uploadFile(File file) {

String BOUNDARY = UUID.randomUUID().toString(); // 边界标识 随机生成

String PREFIX = "--", LINE_END = "\r\n";

String CONTENT_TYPE = "multipart/form-data"; // 内容类型

//请求URL

String RequestURL = "http://192.168.0.100:7080/YkyPhoneService/Uploadfile1";

//String RequestURL = "http://www.hong3.com/Fortest/getfiles";

try {

URL url = new URL(RequestURL);

HttpURLConnection conn = (HttpURLConnection) url.openConnection();

conn.setReadTimeout(TIME_OUT);

conn.setConnectTimeout(TIME_OUT);

conn.setDoInput(true); // 允许输入流

conn.setDoOutput(true); // 允许输出流

// Post 请求不能使用缓存

conn.setUseCaches(false); // 不允许使用缓存

conn.setRequestMethod("POST"); // 请求方式

conn.setRequestProperty("Charset", CHARSET); // 设置编码

conn.setRequestProperty("connection", "keep-alive");

conn.setRequestProperty("Content-Type", CONTENT_TYPE + ";boundary="

+ BOUNDARY);

if (file != null) {

/**

* 当文件不为空，把文件包装并且上传

*/

OutputStream outputSteam = conn.getOutputStream();

DataOutputStream dos = new DataOutputStream(outputSteam);

StringBuffer sb = new StringBuffer();

sb.append(PREFIX);

sb.append(BOUNDARY);

sb.append(LINE_END);

/**

* 这里重点注意： name里面的值为服务器端需要key 只有这个key 才可以得到对应的文件 ,也就是此处的uploadfile,

* filename是文件的名字，包含后缀名的 比如:abc.png

*/

sb.append("Content-Disposition: form-data; name=\"uploadedfile\"; filename=\""

+ file.getName() + "\"" + LINE_END);

sb.append("Content-Type: application/octet-stream; charset="

+ CHARSET + LINE_END);

sb.append(LINE_END);

dos.write(sb.toString().getBytes());

InputStream is = new FileInputStream(file);

byte[] bytes = new byte[1024];

int len = 0;

while ((len = is.read(bytes)) != -1) {

dos.write(bytes, 0, len);

}

is.close();

dos.write(LINE_END.getBytes());

byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINE_END)

.getBytes();

dos.write(end_data);

dos.flush();

/**

* 获取响应码 200=成功 当响应成功，获取响应的流

*/

int res = conn.getResponseCode();

if (res == 200) {

return SUCCESS;

}

}

} catch (MalformedURLException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

return FAILURE;

}

/**

* 从服务器取图片

* @param url

* @return

*/

public static Bitmap getHttpBitmap(String url) {

URL myFileUrl = null;

Bitmap bitmap = null;

try {

myFileUrl = new URL(url);

//myFileUrl = new URL(s);

} catch (MalformedURLException e) {

e.printStackTrace();

}

try {

HttpURLConnection conn = (HttpURLConnection) myFileUrl.openConnection();

conn.setConnectTimeout(0);

conn.setDoInput(true);

conn.setDoOutput(true);

conn.setUseCaches(false);

conn.connect();

System.setProperty("http.keepAlive", "false");

InputStream is = conn.getInputStream();

bitmap = BitmapFactory.decodeStream(is);

is.close();

return bitmap;

} catch (IOException e) {

e.printStackTrace();

return null;

}

}

}