Tag：problem
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Time：2020-7-11
Recently, I use more. Net core projects. When using httpclient to send requests recently, when the server takes a long time to process, I always report an exception: a task was cancelled. My method of using asynchronous request is also old-fashioned. I use task a = () = > {}; a.wait(); to wait for the […]
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Time：2020-7-11
MySQL problem record — 2003 can’t connect to MySQL server on ‘localhost’ (10038) Abstract: This paper mainly records the problems and solutions when connecting to MySQL database. Problem recurrence When using Navicat to connect to the database, the connection fails and a prompt appears: terms of settlement Check whether the server where the database is […]
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Time：2020-7-10
1. Calling init / initwithframe method The system will call 2. The third party library is repeated Problem performance duplicate symbol _OBJC_METACLASS_$_JKSerializer in: /Users/tony/Desktop/XXXProject/Lib/libMiPushSDK.a(JSONKit.o) /Users/tony/Library/Developer/Xcode/DerivedData/XXXProject-boqkajmzatzxohbyrrhklfiuknic/Build/Products/Debug-iphoneos/libPods.a(JSONKit.o) ld: 24 duplicate symbols for architecture armv7 clang: error: linker command failed with exit code 1 (use -v to see invocation) Solutions Third party library found Make a replica View […]
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Time：2020-7-10
The peak of job hopping is from March to April every year. Whether it’s a job application for Python web development, crawler engineer, data analysis, or automatic operation and maintenance, it involves some basic knowledge! I selected some basic interview questions of Python to see if you can answer them, and maybe the interviewees can […]
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Time：2020-7-10
Some time ago, I saw that the. Net core was even more updated. Everyone responded very well. I wanted to have a chance to learn. It happened that these two days I had to write a simple service running on CentOS. So I decided to give up using Java and go straight to. Net core. […]
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Time：2020-7-9
Solution of proxy method call in IOS system In the project development, I encountered a very strange problem. Under the Jiugongge keyboard of IOS system,UITextViewControl’s- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)textThe proxy method is called multiple times 1. Demand background What the project needs to achieve [email protected], when the input single character is [email protected] you select […]
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Time：2020-7-9
1. Background Sometimes there are some problems, and monitoring plug-ins can not immediately find the root cause of the problem. At this time, you need to log in to the server to further analyze the root cause of the problem. Then the analysis of the problem requires a certain amount of technical experience, and some […]
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Time：2020-7-9
Environment: nginx + MySQL + php7.2; php7.2 installed on Mac with homebrew Problem: the PHP configuration file has been modified, php.ini ; server is nginx, how to restart PHP? Open: brew services start [email protected] Restart: brew services restart [email protected] stop it: brew services stop [email protected]
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Time：2020-7-9
Question screenshot: Solution: 1. Open the file > setting window 2. Search webpack 3. Choose the following path Problem solving
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Time：2020-7-8
Foreword: in the previous article, I used a command to add angular to the environment variable successfully As shown in the figureUnfortunately, there is a fatal problem with this method. The addition of this environment variable is only temporary. If we exit this shell and open a new shell again, we will report the same […]
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Time：2020-7-8
In the path of tomcat, which is the reverse proxy of nginx, the problem of session loss may occur. Every time a request is sent, jessionid changes, indicating that the session formed last time is lost, thus creating a new session. In the first case: server{ listen 80; server_name www.jiahemdata.com www.jiahemdata.cn; charset utf-8; location /{ […]
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Time：2020-7-8
scene When you read an Android tutorial, you are happy to run the first HelloWorld, only to find that new projects in Android studio always report errors. It can not compile successfully, the run button is gray, and there is no virtual machine, but a simple hello world can’t run. Note: Blog:https://blog.csdn.net/badao_liumang_qizhi Official accountDomineering procedural […]
