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Spring MVC: How to return image in @ResponseBody?
...E_PNG_VALUE)
public @ResponseBody byte[] showImageOnId(@PathVariable("id") String id) {
byte[] b = whatEverMethodUsedToObtainBytes(id);
return b;
}
In this case do rememeber to configure the messageconverters properly (and add a ByteArrayHttpMessageConverer) in your WebMvcConfig, like so:
...
Row count with PDO
...
Using this approach, fetchColumn() returns a string "1234" ... your EDIT has echo count($nRows); - count() is an array function :P. I'd also recommend type casting the result from fetchColumn() to an integer. $count = (int) $stmt->fetchColumn()
–...
Alarm Manager Example
..."
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.alarmexample.MainActivity"
android:label="@string/app_name" >
<...
Simple logical operators in Bash
... a variable is empty and -e $file to test if a file exists. There are also string equality operators: "$string1" == "$string2" (beware that the right-hand side is a pattern, e.g. [[ $foo == a* ]] tests if $foo starts with a while [[ $foo == "a*" ]] tests if $foo is exactly a*), and the familiar !, &...
Is there a __CLASS__ macro in C++?
... extracting the information through a macro style interface.
inline std::string methodName(const std::string& prettyFunction)
{
size_t colons = prettyFunction.find("::");
size_t begin = prettyFunction.substr(0,colons).rfind(" ") + 1;
size_t end = prettyFunction.rfind("(") - begin;
...
Do I need to disable NSLog before release Application?
...BUG_MODE
#define DLog( s, ... ) NSLog( @"<%p %@:(%d)> %@", self, [[NSString stringWithUTF8String:__FILE__] lastPathComponent], __LINE__, [NSString stringWithFormat:(s), ##__VA_ARGS__] )
#else
#define DLog( s, ... )
#endif
Now instead of NSLog use DLog everywhere. When testing and debugging...
From Arraylist to Array
...le to convert from ArrayList to Array?
I have a text file with each line a string:
9 Answers
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How to get the text node of an element?
... possible iterations. Comparing two small numbers is better than comparing strings of various lengths (time and space considerations). The correct question to ask in this situation is "what kind / type of node do I have?", and not "what name do I have?" developer.mozilla.org/en-US/docs/Web/API/Node/...
iPhone get SSID without private library
...s: %@", __func__, interfaceNames);
NSDictionary *SSIDInfo;
for (NSString *interfaceName in interfaceNames) {
SSIDInfo = CFBridgingRelease(
CNCopyCurrentNetworkInfo((__bridge CFStringRef)interfaceName));
NSLog(@"%s: %@ => %@", __func__, interfaceName, SSIDInfo)...
How can I autoplay a video using the new embed code style for Youtube?
...o high in the goog results. The part of the URL following '?' is the Query String and what you need is the 'autoplay' key with value '1'. So for example, '.../embed/JW5meKfy3fY?autoplay=1?rel=1' would also be wrong because then you would have 'autoplay' with value '1?rel=1'. The Query String begins ...