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Spring mvc @PathVariable
...nt to write a url to fetch some order, you can say
www.mydomain.com/order/123
where 123 is orderId.
So now the url you will use in spring mvc controller would look like
/order/{orderId}
Now order id can be declared a path variable
@RequestMapping(value = " /order/{orderId}", method=RequestMe...
How can I convert a hex string to a byte array? [duplicate]
Can we convert a hex string to a byte array using a built-in function in C# or do I have to make a custom method for this?
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Find out time it took for a python script to complete execution
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import time
start = time.time()
fun()
# python 2
print 'It took', time.time()-start, 'seconds.'
# python 3
print('It took', time.time()-start, 'seconds.')
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How to convert PascalCase to pascal_case?
...ng' => 'a_string',
'Some4Numbers234' => 'some4_numbers234',
'TEST123String' => 'test123_string',
);
foreach ($tests as $test => $result) {
$output = from_camel_case($test);
if ($output === $result) {
echo "Pass: $test => $result\n";
} else {
echo "Fail: $test => ...
What is the difference between char * const and const char *?
...you can't change the value they point at.
This:
int *const i3 = (int*) 0x12345678;
defines a const pointer to an integer and initializes it to point at memory location 12345678. You can change the int value at address 12345678, but you can't change the address that i3 points to.
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How do you UrlEncode without using System.Web?
... good examples comparing them so:
string testString = "http://test# space 123/text?var=val&another=two";
Console.WriteLine("UrlEncode: " + System.Web.HttpUtility.UrlEncode(testString));
Console.WriteLine("EscapeUriString: " + Uri.EscapeUriString(testString));
Console.WriteLine("Escape...
How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?
...only match at that position or earlier. For example:
std::string test = "0123123";
size_t match1 = test.rfind("123"); // returns 4 (rightmost match)
size_t match2 = test.rfind("123", 2); // returns 1 (skipped over later match)
size_t match3 = test.rfind("123", 0); // returns std::string::npos (i...
Java: How to set Precision for double value? [duplicate]
...ts.
If you only want to print, use it this way:
System.out.printf("%.2f",123.234);
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Regular Expression to reformat a US phone number in Javascript
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Assuming you want the format "(123) 456-7890":
function formatPhoneNumber(phoneNumberString) {
var cleaned = ('' + phoneNumberString).replace(/\D/g, '')
var match = cleaned.match(/^(\d{3})(\d{3})(\d{4})$/)
if (match) {
return '(' + match[1] + ')...
CDN（内容分发网络）技术原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...进行了调整，所以解析函数库一般得到的是该域名对应的CNAME记录，为了得到实际IP地址，浏览器需要再次对获得的CNAME域名进行解析以得到实际的IP地址；在此过程中，使用的全局负载均衡DNS解析，如根据地理位置信息解析对应...