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Mail multipart/alternative vs multipart/mixed
...mail/smtp/package-summary.html
http://forum.java.sun.com/thread.jspa?threadID=5205249
smtpsend.java - demo program from javamail
*/
props.put("mail.smtps.quitwait", "false");
Session session = Session.getInstance(props, null);
// -- C...
Camera 扩展：相机拍照和录像，程序控制拍照、自动拍照实现，而无需点击系...
...
属性
IsRecording 正在录制 {:.boolean .read-only}
返回当前是否正在录制视频。
IsCameraActive 相机已激活 {:.boolean .read-only}
返回相机是否已启动并激活。
CameraFacing 相机朝向 {:.text .read-only}
返回当前相机的朝...
Differences between hard real-time, soft real-time, and firm real-time?
I have read the definitions for the different notions of real-time , and the examples provided for hard and soft real-time systems make sense to me. But, there is no real explanation or example of a firm real-time system. According to the link above:
...
Encrypt & Decrypt using PyCrypto AES 256
...encrypt(self, raw):
raw = self._pad(raw)
iv = Random.new().read(AES.block_size)
cipher = AES.new(self.key, AES.MODE_CBC, iv)
return base64.b64encode(iv + cipher.encrypt(raw.encode()))
def decrypt(self, enc):
enc = base64.b64decode(enc)
iv = enc[:A...
Where to place and how to read configuration resource files in servlet based application?
...urceAsStream() with a classpath-relative path:
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
InputStream input = classLoader.getResourceAsStream("foo.properties");
// ...
Properties properties = new Properties();
properties.load(input);
Here foo.properties is supposed to...
How do you create a random string that's suitable for a session ID in PostgreSQL?
...---------------------
202ed325-b8b1-477f-8494-02475973a28f
May be worth reading the docs on UUID too
The data type uuid stores Universally Unique Identifiers (UUID) as defined by RFC 4122, ISO/IEC 9834-8:2005, and related standards. (Some systems refer to this data type as a globally unique i...
Read password from stdin
... });
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Jquery - How to make $.post() use contentType=application/json?
... anyKey: "anyvalue and type" } will be application/json. Many servers that read json, will only allow an object or array, not a string--thus why jquery predicts things this way. If you have a server that reads strings, numbers, etc without being wrapped in an object, you must specify the content-typ...
UnboundLocalError on local variable when reassigned after first use
...nd parsing.
Consider how the parse of this line of code works. The lexer reads the source text and breaks it into lexemes, the "smallest components" of the grammar. So when it hits the line
c+=1
it breaks it up into something like
SYMBOL(c) OPERATOR(+=) DIGIT(1)
The parser eventually wants ...
How to force file download with PHP
...
Read the docs about built-in PHP function readfile
$file_url = 'http://www.myremoteserver.com/file.exe';
header('Content-Type: application/octet-stream');
header("Content-Transfer-Encoding: Binary");
header("Content-disposi...