java读取文件并上传

public  void uploadSharefile(String title, String bg, int id) {
BufferedReader br = null;
InputStream is = null;
try {
String line = null;
br = new BufferedReader(new InputStreamReader(new FileInputStream(DBConnection.class.getClassLoader().getResource("").getPath()
+ "coupons_share.html"), "UTF-8"));
StringBuilder str = new StringBuilder();
while ((line = br.readLine()) != null) {
str.append(line);
}
if (br != null) {
br.close();
br = null;
}
is = new ByteArrayInputStream(str.toString().replace("{title}", title).replace("{bg}", "http://images.lvxinlvshi.com/" + bg).getBytes("UTF-8"));
AliyunOSS aliyunOSS = new AliyunOSS();
aliyunOSS.setBUCKET_NAME("staticflile");
aliyunOSS.put(is, is.available(), "coupons_share" + id + ".html");
if (is != null) {
is.close();
is = null;
}
if (is != null) {
is.close();
is = null;
}
} catch (IOException e) {
e.printStackTrace();
} finally {
}
}