Programmer Think

Spring boot integrates Shiro and simple implementation Create a SpringBoot project Add dependency Configure Shiro (key) Configure login logic Configuration authorization Create a SpringBoot project Create a little Add dependency 1. Add thymeleaf <!-- thymeleaf Dependent dependence --> <dependency> <g ...

I. urllib, urllib2, urllib3, requests In the python 2 of the urlib2 room, python 3 merges urllib and urllib2 into the urllib directory, so Python 3 directly uses urllib. urllib3 is a tripartite library, which provides functions such as connection pool, client SSL/TLS authentication, file code upload, HTTP redirection, gzip and deflate compres ...

Source: http://1t.click/bfHN I. Preface The daily development process sometimes needs to load some resources after the application is started, or release resources before the application is closed. The spring framework provides related functions. Around the Spring Bean life cycle, you can initialize resources in the Bean creation process and ...

                Today, when developing a project, we encounter a problem that is how to get the day before and the day after the current time. The logic of this implementation is not complicated, and it is not difficult to write by yourself, but it seems that there is no need to write such a method by yourself. Think about the C ...

order This paper focuses on springboot jet autoconfigure JestProperties spring-boot-autoconfigure-2.1.4.RELEASE-sources.jar!/org/springframework/boot/autoconfigure/elasticsearch/jest/JestProperties.java @ConfigurationProperties(prefix = "spring.elasticsearch.jest") public class JestProperties { /** * Comma-separated list of the Elasticsearc ...

Recently, a strange problem occurred in a query microservice online. The number of GCs suddenly increased, and the time consumption of GC also increased. It's not always the problem, but it's reported every other time. View jstat -gcutils 10000: Similar to the following: S0 S1 E O M CCS YGC YGCT FGC FGCT G ...

1. The relationship between spring container and spring MVC container Spring container is a parent container, and spring MVC container is a child container, which inherits from spring container. Therefore, in the spring MVC container, you can access the beans defined in the spring container, while in the spring container, you cannot access the ...

In the process of object-oriented programming, we sometimes face the problem of creating a large number of instances of the same or similar objects. Creating so many objects will consume a lot of system resources, which is a bottleneck of improving system performance. For example, black and white pieces in go and Gobang, coordinate points or co ...

golang_real.jpg Share beforeGorang network programming (5) middleware By learning to write two interceptors by ourselves, output log and simple permission verification. This is what we usually do in middleware. In fact, many times we don't need to do too much by ourselves. Do we still need to grow, bake and grind if we want t ...

Design sketch: Navigation: Horizontal layout Grid layout Vertical layout Set up pictures with lable The use of radiobutton 1 horizontal layout First of all, we created a QGroupBox and put three buttons in this component self.groupBox = QGroupBox('there are some buttons') Then create a horizontal layout object hbox ...