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How to specify jackson to only use fields - preferably globally
...
In Jackson 2.0 and later you can simply use:
import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
...
ObjectMapper ma...
BLE（一）概述&工作流程&常见问题 - 创客硬件开发 - 清泛IT社区，...
...些NFC蓝牙音箱。
0x23 设备配对过程1 pin码配对在老的蓝牙2.0协议中，配对过程需要输入一个PIN码，长度可以从4到16个数字。（很多设备默认0000或者1234）
在配对的过程中通过PIN码来生成Linkkey。两个配对后的设备共享一个Linkkey，...
How can I completely remove TFS Bindings
...ache:
Go to C:\Users\<user>\AppData\Local\Microsoft\Team Foundation\2.0
Delete or rename the Cache folder.
This come from a website I could not find now. Thanks for that guy for the tip.
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Spring Boot Remove Whitelabel Error Page
...vlet.error.ErrorMvcAutoConfiguration
Documentation
For Spring Boot < 2.0, the class is located in package org.springframework.boot.autoconfigure.web.
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Swift: Convert enum value to String?
...ng for 'foo' is \(foo)"
String for 'foo' is Bing
Updated: For Swift >= 2.0, replaced Printable with CustomStringConvertible
Note: Using CustomStringConvertible allows Foo to adopt a different raw type. For example enum Foo : Int, CustomStringConvertible { ... } is possible. This freedom can be...
dropping infinite values from dataframes in pandas?
...l(1)]
print('\nDropped:\n',df,sep='')
Result:
Input:
0
0 1.0000
1 2.0000
2 3.0000
3 NaN
4 4.0000
5 inf
6 5.0000
7 -inf
8 6.0000
Dropped:
0
0 1.0
1 2.0
2 3.0
4 4.0
6 5.0
8 6.0
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Hidden Features of SQL Server
...nection String extras:
MultipleActiveResultSets=true;
This makes ADO.Net 2.0 and above read multiple, forward-only, read-only results sets on a single database connection, which can improve performance if you're doing a lot of reading. You can turn it on even if you're doing a mix of query types.
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Why do I get a warning icon when I add a reference to an MEF plugin project?
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For me, I ran into this issue when referencing a .NET Standard 2.0 class library in a .NET Framework 4.7.1 console application. Yes, the frameworks are different, but they are compatible (.NET Standard is supposed to jive with both .NET Core and .NET Framework.) I tried cleaning, rebuild...
Converting pixels to dp
...5 on ldpi (120 dpi)
1.0 on mdpi (160 dpi; baseline)
1.5 on hdpi (240 dpi)
2.0 on xhdpi (320 dpi)
3.0 on xxhdpi (480 dpi)
4.0 on xxxhdpi (640 dpi)
Use this online converter to play around with dpi values.
EDIT:
It seems there is no 1:1 relationship between dpi bucket and density. It looks lik...
Easy way to convert Iterable to Collection
...t goes unused. There's another cost: licensing complications. The Apache 2.0 license is flexible, but not without some tedious mandates. Ideally we would see some of these common patterns integrated directly into the Java runtime libraries.
– Jonathan Neufeld
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