Programming VIP

decoupling Just now we said that the creation of resources was entrusted to sring. We can find spring for what we need. This process is like a factory model. But what objects it needs to create in the spring framework, it needs a configuration file. This configuration file tells spring which resources need to be created. For example, su ...

Generally speaking, when it comes to data visualization, Python readers may think of matplotlib module or seaborn module for the first time, while when it comes to drawing dynamic charts, they think more of Plotly or pyechards. Today, I'd like to introduce another module for drawing dynamic charts, which is very convenient to use, and the c ...

Write web XML, register DispatcherServlet Writing spring MVC configuration files The next step is to create the corresponding control class, controller Finally, improve the correspondence between the front-end view and the controller (the parameters of Model type are declared in the method to bring the data in the Action to the view) Test ...

In the ABP VNext framework, even in all the cases it provides, there is no case introduction of Winform program, but a console program is provided in the microservice solution to understand the calling and processing of its IDS4. Because I have developed many Winform projects, the Winform client is included in the ABP rapid development framewor ...

import java.util.ArrayList; public class Test { public static void main(String[] args) { Object obj1 = new Object(); Object obj2 = new Object(); System.out.println(obj1.hashCode()); // 460141958 System.out.println(obj2.hashCode()); // 1163157884 String str = new String(); Sy ...

} } 1. stay controller Medium injection RetryTemplate It can also be used in service in @RestController public class SpringRetryController { @Resource private RetryTemplate retryTemplate; private static int count = 0; @RequestMapping("/retry") public Object retry() { try { count = 0; retryTemplate.exec ...

1, Simple use of Hystrix Create an empty Maven project and add the dependency of Hystrix in the project, as shown in the following code: <dependency> <groupId>com.netflix.hystrix</groupId> <artifactId>hystrix-core</artifactId> <version>1.5.13</version> </dependency> Write the first Hystr ...

If you want to show the operation, you must first obtain the Class object, because the Class object represents various types. With it, you can get all kinds of Class information. The acquisition method is as follows: 1) Through object getClass() public static void main(String[] args) { Car car = new Car(); ...

Example 3: if Zhang San scores more than 90 points in the Java test, the teacher will reward him with a mobile phone, otherwise the teacher will punish him for squatting. if(javaFraction>90) { System.out.println("The teacher rewarded a mobile phone"); }else{ System.out.println("Punishment squat horse step"); } The flow chart is a ...

We can use zookeeper as the registry to realize service registration and discovery. The curator framework provides curator-x-discovery extension to realize out of the box service registration and discovery, but more often we choose to implement it ourselves. At that time, we need to pay extra attention to a feature of zookeeper, that is, wathce ...