jsp+servlet online ordering system (front desk, backend) based on javaweb+mysql (java+jsp+servlet+mysql+dbutil+tomcat)

jsp + servlet online ordering system (front desk, backend) based on javaweb + mysql (java + jsp + servlet + mysql + dbutil + tomcat) 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, […]

BGP routing attributes——-AS_Path

1. AS_Path The AS_Path attribute has four forms, namely: AS_Sequence, AS_Set, AS_Confed_Sequence and AS_Confed_Set. AS_Sequence: It is an ordered set of AS numbers passed on the path to the destination. All ASs passed by the route are recorded in order. AS_Set: It is an unordered set of AS numbers passed on the path to the […]

Explosive performance! Python multi-process mode implements multi-core CPU parallel computing

Article directory Preface 1. Multi-process mode in Python 2. Methods to improve program execution efficiency 1. Multiple processes execute tasks concurrently 2. Process pool 3.Message queue 4. Shared memory 5.Asynchronous IO Summarize About Python technical reserves 1. Learning routes in all directions of Python 2. Python basic learning video 3. Excellent Python learning books 4. […]

redis org.springframework.data.redis.RedisSystemException: Error in execution

Background When running a certain system, the test class stores a certain value into redis and then takes it out. 1. Problems encountered Error reported: org.springframework.data.redis.RedisSystemException: Error in execution; nested exception is io.lettuce.core.RedisCommandExecutionException: MISCONF Redis is configured to save RDB snapshots, but it is currently not able to persist on disk. Commands that may modify […]

[Luogu NOIP 2023 Simulation] Solution

This blog has been sitting in the background of my blog for several days, but I just remembered to post it today. plant (plant) First of all, when I saw the number of factors, I thought of considering the problem on the sequence after prime factorization. Further observation shows that the contribution of each dissimilar […]

DevOps application solution based on Docker containers

Table of Contents Experimental requirements: 1. Preparation work 2.gitlab host operation 3. harbor host operation 4. jenkins host operation Write jenkins pipeline script Experimental requirements: 1. Deploy gitlab and upload the code of the above project to your own gitlab warehouse (the first host) 2. Deploy jenkins based on tomcat (second host) 3. Deploy harbor […]

springMVC execution process and working principle

SpringMVC execution process: 1. The user sends a request to the front-end controller DispatcherServlet 2. DispatcherServlet receives the request and calls the processor mapper HandlerMapping. 3. The processor mapper finds the specific processor according to the request URL, generates the processor execution chain HandlerExecutionChain (including the processor object and processor interceptor) and returns it to […]

Django – routing layer

1. Route matching 1. Notes on route matching urlpatterns = [ url(r’^admin/’, admin.site.urls), # front page url(r’^$’,views.home), # Route matching url(r’^test/$’,views.test), url(r’^testadd/$’,views.testadd), # Last page (understand): Use exception capture processing later. Such a last page makes Django’s second slash APPEND_SLASH=True in the path meaningless, and the mechanism of appending slashes in the second redirect is […]

Solution to the “red” message when running tensorfow

Problem display When running tensor, a large amount of “red” information often appears, as shown below: import tensorflow as tf x = tf.constant(1) print(x) code display 2023-11-12 17:39:04.668566: I tensorflow/core/common_runtime/gpu/gpu_device.cc:1561] Found device 0 with properties: pciBusID: 0000:01:00.0 name: GeForce MX250 computeCapability: 6.1 coreClock: 1.582GHz coreCount: 3 deviceMemorySize: 2.00GiB deviceMemoryBandwidth: 52.21GiB/s 2023-11-12 17:39:04.668943: I tensorflow/stream_executor/platform/default/dso_loader.cc:44] Successfully […]

10 Best Solutions for Optimal Stable Diffusion in 2023

You may have seen a lot of news over the past year about ChatGPT and other AI automated texturing. But words on a page (or screen) are far from the only way modern organizations and designers are using artificial intelligence. Tools like Stable Diffusion help you create stunning AI images for personal and professional use. […]