/**
* 根据图片的网络地址获取图片的byte[]类型数据
* @param urlPath
* 图片的网络地址
* @return 图片数据
*/
public static byte[] getImageFromURL(String urlPath) {
byte[] data = null;
InputStream is = null;
HttpURLConnection conn = null;
try {
URL url = new URL(urlPath);
conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true);
// conn.setDoOutput(true);
conn.setRequestMethod("GET");
conn.setConnectTimeout(6000);
is = conn.getInputStream();
if (conn.getResponseCode() == 200) {
data = readInputStream(is);
}
else{
data=null;
}
}
catch (MalformedURLException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
finally {
try {
if(is != null){
is.close();
}
}
catch (IOException e) {
e.printStackTrace();
}
conn.disconnect();
}
return data;
}
/**
* 读取InputStream数据，转为byte[]数据类型
* @param is
* InputStream数据
* @return 返回byte[]数据
*/
public static byte[] readInputStream(InputStream is) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int length = -1;
try {
while ((length = is.read(buffer)) != -1) {
baos.write(buffer, 0, length);
}
baos.flush();
}
catch (IOException e) {
e.printStackTrace();
}
byte[] data = baos.toByteArray();
try {
is.close();
baos.close();
}
catch (IOException e) {
e.printStackTrace();
}
return data;
}
