Jump mode and data processing

6. Jump mode 6.1 forwarding and redirection via spring MVC - no view parser required Before testing, you need to comment out the view parser @Controller public class ResultSpringMVC { @RequestMapping("/rsm/t1") public String test1(){ //forward return "/index.jsp"; } @RequestMapping("/rsm/t2") public String test2(){ ...

Added by smileyriley21 on Wed, 09 Mar 2022 04:43:17 +0200

How to implement SQL in data warehouse user behavior funnel analysis (Section 2)

catalogueDemand 1: user active themeRequirement 2: user added themeDemand 3: user retention themeDemand 4: number of silent usersDemand 5: number of returned users this weekDemand 6: number of lost usersDemand 7: number of active users in the last three consecutive weeksDemand 8: number of active users for three consecutive days in the last sev ...

Added by chipev on Wed, 09 Mar 2022 04:41:16 +0200

Three js DRACOLoader

preface Use front-end three In the process of loading 3d models with JS, the model size is often too large, resulting in too long loading time at the front end and reducing the user experience. What is recorded in this paper is a process of stepping on the DRACOLoader and solving the problem in using gltf pipeline to compress 3d model. The th ...

Added by Mactek on Wed, 09 Mar 2022 04:35:47 +0200

Divide and conquer, mathematical problems and bit operations

1, Divide and conquer method of reducing complexity to simplicity 1. Design priority for arithmetic expressions Question: Give you a string expression composed of numbers and operators, combine numbers and operators according to different priorities, calculate and return the results of all possible combinations. You can return answers in any or ...

Added by diex on Wed, 09 Mar 2022 04:32:56 +0200

Spark13: Spark Program Performance Optimization 01: high performance serialization class library, persistence or checkpoint, JVM garbage collection tuning, improving parallelism and data localization

1, Performance optimization analysis The execution of a computing task mainly depends on CPU, memory and bandwidth. Spark is a memory based computing engine, so for it, the biggest impact may be memory. Generally, our tasks encounter performance bottlenecks, and most of them are memory problems. Of course, CPU and bandwidth may also affect th ...

Added by matthewst on Wed, 09 Mar 2022 04:30:50 +0200

Stop asking for WiFi password. HMS Core unified code scanning service enables mobile phones to connect to the Internet with one click

Modern life is inseparable from the Internet. In restaurants, shopping malls and other public places, mobile phone WiFi connection has always been a high-frequency use scenario. Although there are more and more free WiFi in public places, the process of network connection is very troublesome. Some need to open the web page to register or click ...

Added by evilcoder on Wed, 09 Mar 2022 04:27:15 +0200

Single sign on service Authelia (Part 2)

advanced setting Authelia Enter Nginx Proxy Manager and find Authelia domain name auth laosu. Ml corresponding Proxy Hosts, enter the editing state, and switch to the Advanced interface Paste the following code in Custom Nginx Configuration location / { set $upstream_authelia http://192.168.0.199:9091; # ip and port of Australia ...

Added by Cleibe on Wed, 09 Mar 2022 04:15:39 +0200

Focal Loss upgrade | E-Focal Loss makes Focal Loss dynamic, and the extreme imbalance of categories can be easily solved

Despite the recent success of long tail target detection, almost all long tail target detectors are developed based on the two-stage paradigm. In practice, one-stage detectors are more common in the industry because they have a simple and fast Pipeline and are easy to deploy. However, in the case of long tail, this work has not been explore ...

Added by fabby on Wed, 09 Mar 2022 04:11:09 +0200

Using MySQL Router to build read-write separated MGR cluster

The original content of GreatSQL community cannot be used without authorization. Please contact Xiaobian and indicate the source for reprint.[toc]This paper introduces how to deploy MySQL Router in the front end of MGR cluster to realize read-write separation, read load balancing and automatic failover.MySQL Router is a lightweight middleware. ...

Added by danbot26 on Wed, 09 Mar 2022 04:04:29 +0200

script setup in vue3

script setup < script setup > is a new syntax sugar from Vue3. The type is the suggestion in Vue's Git RFC. It should be made clear that this is not intended to completely replace any current writing. Its purpose is to provide developers with more concise syntax and simplify the lengthy template code when using the Composition API to wri ...

Added by e11rof on Wed, 09 Mar 2022 03:49:19 +0200