Programmer Think

Redis distributed Session Spring-Session Spring seesion solves the problem of sharing distributed session s. introduce Spring Session is one of the projects of spring. GitHub address: https://github.com/spring-pro. Spring Session provides a perfect solution for creating and managing servlet httpsessions. function spring Se ...

1, Lambda expression 1. Examples of Lambda expressions @Test public void test1(){ Runnable r1 = new Runnable() { @Override public void run() { System.out.println("I Love Beijing Tiananmen "); } }; r1.run(); System.out.println("********************** ...

Title Description input (11,LL) (7,LLL) (8,R) (5,) (4,L) (13,RL) (2,LLR) (1,RRR) (4,RR) () (3,L) (4,R) () output 5 4 8 11 13 4 7 2 1 not complete Idea 1: implement binary tree in pointer mode (chain storage) First define a structure, and then define a structure pointer root as the root node of the whole tree. If the left and right nodes ...

Recently, I have learned some JNDI vulnerability utilization chains that master is looking for, and I have benefited a lot. I also try to do some mining on JNDI vulnerability utilization. At present, I think of two questions in the process of JNDI utilization. It is inconvenient to test that every JNDI Bypass chain needs to change the URL manu ...

applicationContext basic configuration IOC configuration 1. Basic configuration <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/ ...

Recursively generate binary reflection Code: Requirements: We use recursion to generate binary reflection gray code. What is gray code? The typical Binary Gray Code is abbreviated as gray code, which is named after the patent "Pulse Code Communication" of Frank Gray (18870913-19690523) published in 1953. It was originally used to ...

Parent project Create a maven project l-cloud-alibaba, delete the src directory and modify POM The XML content is as follows: <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/ ...

In the process of implementing the interpreter, I found a fun thing, that is, how to better use the object-oriented idea to write code, and think about how to define a set of templates. Before starting again, I sorted out two kinds of object-oriented templates.One is a java style template(class classname (superclass) (. field) ( func t()( ...

Blue Bridge Cup: running exercise algorithm (java) This article is only for reference, because the blogger is very delicious, so the method is very stupid. I hope the bosses can put forward valuable opinions!!! thank you!!! Original title This question is a blank filling question. You only need to calculate the result and use the output stat ...

Initial review Process control if -else package Initial_practice; import java.util.Scanner; /* Suppose you want to develop a lottery game. The program randomly generates a two digit lottery, prompts the user to enter a two digit lottery, and then determines whether the user can win according to the following rules. 1)If the number ent ...