jsp + servlet hospital appointment registration system based on javaweb + mysql (java + jdbc + jsp + mysql + ajax) Private message Source code acquisition and debugging communication Operating environment Java≥8, MySQL≥5.7, Tomcat≥8 development tools eclipse/idea/myeclipse/sts, etc. can be configured to run Be applicable Course design, major assignments, graduation projects, project exercises, learning demonstrations, […]
k8s custom Endpoint implements internal pod access to external applications
Customize endpoint to implement internal pod access to external applications In addition to exposing the pod’s IP and port, endpoint can also proxy to external IP and port. scenes to be used The company’s business has not yet been moved to the cloud. Some of it is cloud-native and some of it is physical. During […]
MySQL Backup and Recovery: Protecting Data Security and Business Continuity
1. Quote MySQL is a widely used relational database management system. For any enterprise or individual, data security and continuity are crucial. Backup and recovery are one of the important means to protect data security and achieve business continuity. This article will introduce the importance of MySQL backup and recovery, the selection of backup strategies, […]
[milkv] 2. Add and test mpu6050 driver
Foreword This chapter introduces the driver addition and testing of mpu6050. The driver does not use the driver provided by the sdk. On the one hand, you need to configure the irq. On the other hand, you can learn how to add the driver through the ko method. 1. Reference articles Driver and test file […]
[milkv] 1. Light sensor bh1750 driver addition and testing
Foreword This chapter introduces adding the light sensor bh1750 to the milkv-duo development board and implementing application layer testing. 1. View circuit diagram 1.1 duo development board i2c pins https://github.com/milkv-duo/duo-files These are the pins that can be used as i2c Note: gpio0 and 1 in the circuit diagram correspond to gpio28 and 29 on the […]
SOEM source code analysis – ecx_siistring (read SII string information)
0 Tool preparation 1.SOEM-master-1.4.0 source code 1 Overview of ecx_siistring function /** Get string from SII string section in slave EEPROM. Get string from SII string section * @param[in] context = context struct handle * @param[out] str = requested string, 0x00 if not found requested string information, 0x00 means not found * @param[in] slave = […]
LinuxUbuntu16.04 configuration repo
Ubuntu16.04 failed to configure repo In the process of learning Wei Dongshan’s Linux embedded development, use the repo to obtain the kernel and tool chain: git clone https://e.coding.net/codebug8/repo.git mkdir -p 100ask_imx6ull-sdk & amp; & amp; cd 100ask_imx6ull-sdk ../repo/repo init -u https://gitee.com/weidongshan/manifests.git -b linux-sdk -m imx6ull/100ask_imx6ull_linux4.9.88_release.xml –no-repo-verify ../repo/repo sync -j4 The result failed, error message: repo: […]
Network Programming (5) IO Multiplexing — epoll
1. Concept The full name of epoll is eventpoll, a notification mechanism based on event triggering. When the file descriptor read buffer is not empty, the read event is triggered. When the file descriptor write buffer is writable, the write event is triggered. 2. Principle The core data structure of epoll is: a red-black tree […]
FlinkTransformation operator
After the data source reads the data, we can use various conversion operators to convert one or more DataStreams into new DataStreams. After the data source enters, we can convert the data source into the data format we need according to a series of transformation operators, and then output it. Basic conversion operators (map/ filter/ […]
C++ const members and static members
const members and static members Cont members of class const data members Const data members can only be initialized through a constructor initializer list. class Box {<!– –> private: const int length; //Length const int width; //width const int height; //height public: Box(); Box(int H, int W, int L); }; Box::Box(int H, int W, int […]