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java - After Spring Boot 2.0 migration: jdbcUrl is required with driverClassName

SOLVED: My solution: I delete dataSource() method from DatabaseConfig.java. Then, the application was started successfully :) I've ... .0.4.RELEASE.jar:5.0.4.RELEASE] at org.sp...

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

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android - Selecting multiple items in ListView

How to select multiple item in ListView in android. Question&Answers:os...

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

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How do I get rid of the b-prefix in a string in python?

A bunch of the tweets I am importing are having this issue where they read b'I posted a new photo to ... in position 64-65: character maps to <undefined> Question&Answers:os...

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

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.net - A reference to the dll could not be added

When I add a .dll file as a reference in C# application it shows an error : A reference to the ".... ... What could be the problem? Thanks for any hints/replies Question&Answers:os...

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

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c# - GridView must be placed inside a form tag with runat="server" even after the GridView is within a form tag

<form runat="server" id="f1"> <div runat="server" id="d"> grid view: <asp:GridView runat="server" ID="g" ... , still I am getting this error. Any clues please ? Question&Answers:os...

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

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Copying a DLL's dependencies in Visual Studio

How can I set up a project in Visual Studio to copy the third-party DLLs that one of the project's references ... them, they're only used by the class library. Question&Answers:os...

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

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Emacs 24 Package System Initialization Problems

It seems to me that the new Package system that is built-in on Emacs 24 has some flaws when it comes to ... or do we live with this limitation for now? Question&Answers:os...

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

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sql - Calculating difference between two timestamps in Oracle in milliseconds

How do I calculate the time difference in milliseconds between two timestamps in Oracle? Question&Answers:os...

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

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newline - Writing a new line to file in PHP (line feed)

My code: $i = 0; $file = fopen('ids.txt', 'w'); foreach ($gemList as $gem) { fwrite($file, $gem ... : 40119 40122 40120 42155 36925 45881 42145 45880 Thanks. Question&Answers:os...

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

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What kind of optimization does const offer in C/C++?

I know that where possible you should use the const keyword when passing parameters around by reference or by ... optimizations each one offers (if any)? Question&Answers:os...

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

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Formatting Numbers by padding with leading zeros in SQL Server

We have an old SQL table that was used by SQL Server 2000 for close to 10 years. In it, our employee ... If EmployeeID is 7135, this query should return 007135. Question&Answers:os...

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

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c# - composite key as foreign key

I am using Entity framework 4.1 in MVC 3 application. I have an entity where I have primary key consists of two ... } but what if category has two columns key ? Question&Answers:os...

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

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java - Is there a fixed sized queue which removes excessive elements?

I need a queue with a fixed size. When I add an element and the queue is full, it should automatically ... Is there an existing implementation for this in Java? Question&Answers:os...

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

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objective c - Why use weak pointer for delegation?

I can't understand why it is correct to define a delegate with weak pointer : @property (nonatomic,weak) id ... can help me to fully understand this situation. Question&Answers:os...

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

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What is the correct way to represent null XML elements?

I have seen null elements represented in several ways: The element is present with xsi:nil="true": <book> <title>Beowulf< ... so don't read too far into it. :) Question&Answers:os...

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

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javascript - How to upload a file using jQuery.ajax and FormData

When I use XMLHttpRequest, a file is correctly uploaded using FormData. However, when I switch to jQuery.ajax, ... file to be uploaded correctly, using AJAX? Question&Answers:os...

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

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android - Can't create handler inside thread which has not called Looper.prepare()

I have an Activity, and in that I have a class. text=new Dynamictext(...); text.setText("txt"); in my ... .java:152) ERROR/AndroidRuntime(5370): ... 6 more Question&Answers:os...

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

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javascript - Use anchors with react-router

How can I use react-router, and have a link navigate to a particular place on a particular page? (e.g. /home- ... e.g. using the "hash" prop in <Link>) Question&Answers:os...

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

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223 views

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wpf - Binding Button click to a method

I have a datagrid bound to an observable collection of objects. What I want to do is have a button that will ... and I assume I'm just missing something here. Question&Answers:os...

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

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File Upload with Java (with progress bar)

I'm extremely new to Java, and have mostly just been teaching myself as I go, so I've started building an ... how many bytes have been sent? Thanks in advance. Question&Answers:os...

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

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380 views

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c# - Why is "Set as Startup" option stored in the suo file and not the sln file?

It seems like this setting should be stored in the solution file so it's shared across all users and part ... has to set this separately which seems strange. Question&Answers:os...

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

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c# - Stop TabControl from recreating its children

I have an IList of viewmodels which are bound to a TabControl. This IList will not change over the lifetime of ... me to bind to views which is undesirable. Question&Answers:os...

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

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javascript - Dynamically arrange some elements around a circle

I'm looking for a function to arrange some elements around a circle. result should be something like : Question&Answers:os...

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

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java - How does the JVM decided to JIT-compile a method (categorize a method as "hot")?

I already worked with -XX:+PrintCompilation, and I know the basic techniques of the JIT-compiler and why JIT-compilation ... (-XX:...) to set this thresholds? Question&Answers:os...

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

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javascript - How to get subarray from array?

I have var ar = [1, 2, 3, 4, 5] and want some function getSubarray(array, fromIndex, toIndex), that result of call getSubarray(ar, 1, 3) is new array [2, 3, 4]. Question&Answers:os...

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

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How to change the color of progressbar in C# .NET 3.5?

I'd like to do two things on my progress bar. Change the green colour to red. Remove the blocks ... how to accomplish will be greatfuly appreaciated! Thanks. Question&Answers:os...

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

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472 views

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c - How to prevent GCC from optimizing out a busy wait loop?

I want to write a C code firmware for Atmel AVR microcontrollers. I will compile it using GCC. Also, I ... to optimize away - mechanics of a folly function Question&Answers:os...

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

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How to pause and resume CSS3 animation using JavaScript?

I've tried to google and look from this forum a solution for my problem but no luck so far. I would like to ... in a totally wrong way? Help is appreciated. :) Question&Answers:os...

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

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