Programmer Think

SpringMVC Interceptor Interceptor for Spring MVC is similar to Filter for Servlet. It is mainly used to intercept user's requests and handle them accordingly. It is often used for privilege validation, logging request information, determining whether user is logged in, etc. Differences between interceptors and filters Interceptor SpringMVC c ...

preface CC1 was analyzed earlier. Continue to learn today and analyze CC2. stay ysoserial In CC2, the PriorityQueue class is used as the entry of deserialization, so I'll analyze it from here. Vulnerability mining PriorityQueue PriorityQueue priority queue is a special queue based on a priority heap. It defines "priority" for ...

reference material: https://www.ruanyifeng.com/blog/2015/12/git-cheat-sheet.html Common Git commands What is Git? Git is a distributed version control system. Different from the centralized version control system, everyone works in the local version library established through cloning. In other words, everyone has a complete version library. ...

15 supplement 14.1 basic summary 14.1.1 data type It is divided into two categories: Basic type (value type) String: any stringNumber: any numberboolean: true,falseundefined: undefinedNull: null Object type (reference type) Object: any objectArray: special object, accessed by subscriptFunction: a special object that can be executed ...

1 function declaration void *memset(void *s, char ch, unsigned n); 1.1 functions Set the contents of each byte in a block of memory pointed to by s to the ASCII value specified by ch. The size of the block is specified by the third parameter. It is used to fill a given value in a memory block. It is the fastest way to clear a large stru ...

preface What is EFAK EFAK (Eagle For Apache Kafka, formerly known as Kafka Eagle) EFAK is an open source visualization and management software. kafka cluster can be queried, visualized and monitored. It is a tool to convert kafka cluster data into graphic visualization. Why EFAK Apache Kafka does not officially provide monitoring systems o ...

1. string container Please click to jump to this chapter 2. vector container Please click to jump to this chapter 3. deque container Please click to jump to this chapter 4. stack container Please click to jump to this chapter 5. queue container Please click to jump to this chapter 6. list container Please click to jump to this ch ...

catalogue 1. Character pointer 1.1 method of use 1.2 testing 2. Pointer array 2.1 print string pointer array 2.2 printing integer pointer array 3. Array pointer 3.1 definition of array pointer 3.2 & array name VS array name expand 3.3 use of array pointer practice Definition of pointer: A pointer is a variable used to store a ...

Deployment planning This job is the three node deployment method of OceanBase cluster. Directly and remotely log in to the OceanBase node through the central control computer to deploy and start the observer and obproxy processes. Since there are exactly seven physical machines on hand, OBD will be directly deployed as an OceanBase cluster wi ...

Making digital huarongdao with App designer After 2048, I suddenly thought of Huarong Road, but Huarong Road is difficult to do. Let's try a digital Huarong Road first. UI design The main controls are 16 squares showing numbers, a timing panel, a game victory interface and a new game button. As shown in the figure below. Different from 204 ...