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Spring can you autowire inside an abstract class?

Spring is failing to autowire my object? Is it possible to autowire an object within an abstract class. Assume ... <context:annotation-config/> See Question&Answers more detail:os...

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c - Is there a macro definition to check the Linux kernel version?

I'm wondering if there is a gcc macro that will tell me the Linux kernel version so I can set variable types ... my own macro that does this? See Question&Answers more detail:os...

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ios - @IBDesignable crashing agent

When I write my own UIButton-extended class and make it @IBDesignable, I receive two errors in Interface Builder, namely ... 2. (Running in VM) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How to print <?xml version="1.0"?> using XDocument

Is there any way to have an XDocument print the xml version when using the ToString method? Have it output ... was possible by using XDocument. See Question&Answers more detail:os...

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java - Using system environment variables in log4j xml configuration

Is it possible to reference system environment variables (as opposed to Java system properties) in a log4j xml ... things with -D parameters. See Question&Answers more detail:os...

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php - what is the difference between site_url() and base_url()?

As I have read in some resources, base_url() and site_url() functions in codeigniter are almost the same, ... seen base_url() holding none? See Question&Answers more detail:os...

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java - String concatenation containing Arabic and Western characters

I'm trying to concatenate several strings containing both arabic and western characters (mixed in the same string). ... before the second A. See Question&Answers more detail:os...

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Only check whether a line present in a file (ansible)

In ansible, I need to check whether a particular line present in a file or not. Basically, I need to convert the ... .0.0.1" /tmp/my.conf See Question&Answers more detail:os...

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javascript - How do I save and restore a File object in local storage

I have an HTML5/javscript app which uses <input type="file" accept="image/*;capture=camera" onchange="gotPhoto( ... is a 1MB plus photograph. See Question&Answers more detail:os...

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objective c - get type of NSNumber

I want to get the type of NSNumber instance. I found out on http://www.cocoadev.com/index.pl?NSNumber this: ... . I'm compiling for iPhone. See Question&Answers more detail:os...

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.NET DateTime.Now returns incorrect time when time zone is changed

This problem occurred during daylight saving time change. After the change occurred, we've noticed that our ... from restarting the application? See Question&Answers more detail:os...

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linux - Use sudo without password INSIDE a script

For some reason I need, as user, to run without sudo a script script.sh which needs root privileges to work ... answer of the general problem. See Question&Answers more detail:os...

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Change Text Color of Items in UIActionSheet - iOS 8

I had been using following code to change text color of items which I add in UIActionSheet.: - (void) ... of UIActionSheet has been changed. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Core Data: Do child contexts ever get permanent objectIDs for newly inserted objects?

I have an app with two managed object contexts setup like this: Parent Context: NSPrivateQueueConcurrencyType, linked ... with this approach? See Question&Answers more detail:os...

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java - "Could not find the main class" error when running jar exported by Eclipse

I have a java project that works perfectly fine when running it from within Eclipse. When I try to ... other information I should provide. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - In a bash script/command how can I make a PC beep noise, or play a sound file?

I have some long running scripts with breaks requiring input/interaction to continue but when I switch to another ... Grrr... Problem solved. See Question&Answers more detail:os...

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mongodb - How to aggregate by year-month-day on a different timezone

I have a MongoDB whom store the date objects in UTC. Well, I want to perform aggregation by year,month day in a ... ', this is a different day. See Question&Answers more detail:os...

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Python range() and zip() object type

I understand how functions like range() and zip() can be used in a for loop. However I expected range() ... to lists without looping over them? See Question&Answers more detail:os...

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android - Crop a Bitmap image

How can i crop a bitmap image? this is my question i have tried some concepts using intents but still ... help me regarding this @Thanks See Question&Answers more detail:os...

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How to play .mp4 video in videoview in android?

I am working on a video player application, I want to play .mp4 video in the native video view. I am ... .requestFocus(); mVideoView.start(); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Python - Printing a dictionary as a horizontal table with headers

I have a dictionary: import math import random d = {1: ["Spices", math.floor(random.gauss(40, 5))], 2: ... . Just a place holder. Thanks all. See Question&Answers more detail:os...

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in java what does the @ symbol mean?

I know what it means in a comment for documentation purposes, but outside of that what does it mean? (I ... letter symbol shows up in results) See Question&Answers more detail:os...

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c# - Are protected members/fields really that bad?

Now if you read the naming conventions in the MSDN for C# you will notice that it states that properties are ... is critical like games)? See Question&Answers more detail:os...

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python - Using BeautifulSoup to search HTML for string

I am using BeautifulSoup to look for user-entered strings on a specific page. For example, I want to see if the ... of the word to be searched? See Question&Answers more detail:os...

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Run lint when building android studio projects

I would like to be able to run the lint task when I'm building projects with the android studio to ... build.gradle: assemble.dependsOn lint See Question&Answers more detail:os...

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c# - How should I multiple insert multiple records?

I have a class named Entry declared like this: class Entry{ string Id {get;set;} string Name {get;set;} ... consequences I should be aware of? See Question&Answers more detail:os...

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c++ - Automatically adding Enter/Exit Function Logs to a Project

I have a 3rd party source code that I have to investigate. I want to see in what order the functions are ... is called. What do you think? See Question&Answers more detail:os...

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javascript - How does WebSocket compress messages?

JSON.stringify is obviously not very space efficient. For example, [123456789,123456789] occupy 20+ bytes when it ... before sending to stream? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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