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After successful login, automatically kick off the previous login user. Songge first saw this feature inside the button. It was fun at that time. Once you've done your own development, you've met the same requirements. Just as the recent Spring Security series is being serialized, you can use Spring Security to talk about how this function work ...

Last article I've talked about how to use a more elegant way to customize Spring Security login logic. A more elegant way can effectively avoid the inefficiency brought by custom filters. I suggest you read it and understand the authentication logic in Spring Security by the way. Based on the above, this paper will continue to discuss with you ...

1. Installation of third party components GitHub: https://github.com/crazycodeboy/react-native-check-box Install under the command line of ReactNative project npm i react-native-check-box –save 2. Encapsulation of local control 2.1 import and constant definitions, which can be adjusted according to the proj ...

Structure and description of Vue cli initial directory ├── README.md ├├ -- build the code of compiling task │ ├── build.js │ ├── check-versions.js │ ├── dev-client.js │ ├── dev-server.js │ ├── utils.js │ ├── webpack.base.conf.js │ ├── webpack.dev.conf.js │ └── webpack.prod.conf.js ├ - configuration file of config webpack │ ...

Solution If only a pile of Chinese characters is found???? It is proved that the font currently imported does not support Chinese characters. Our solution is to introduce json files that can support Chinese characters. So the question is, how do we get this json file? -We can use ttf format file for conversion. There is an address for onli ...

Install the ActiveMQ server, (or not, if not, use memory mq) To build a Spring boot project and add dependencies, just add this one <!-- Add to acitivemq rely on --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-activemq</artifactId> </dependency> A ...

Understanding the differences between HashMap and LinkedHashMap brief introduction We know that the variable order of HashMap is unpredictable, which means that the convenient output order is not necessarily the same as the insertion order of HashMap.This feature is often confusing to our work.To do this, we can use LinkedHashMap. LinkedHashMap ...

Project: https://github.com/ccyinghua/vue-node-mongodb-project/blob/master/07-shoppingCart.md The calculated function of real-time calculation attributes, real-time calculation attributes, is just the function writing method, and there is no need to declare in data. Some business logic codes can be placed in computed. Remember to return. exampl ...

First on the renderings The effect of sprinkling beans, a whim, thought the animation was very interesting, so I took the time to write a play Drawing process: Define 6 "beans". Each bean has its own attributes, size, throwing speed, etc. then control the direction and state of each bean. The rebound effect uses the differencing devi ...

Effect Taiji.gif Step breakdown Regular figures like Taiji are usually decomposed into basic figures by mathematical knowledge, such as line segment, circle, rectangle, sector, polygon, etc., and then drawn step by step. Decomposing Taiji diagram @Override protected void onDraw(Canvas canvas) { int width = getWidt ...