Table of Contents SpringBoot application starts org.apache.catalina.LifecycleException Problem Description Cause Analysis Solution 1. Check the resources that the application depends on 2. Check application configuration 3. Check port occupancy 4. Check dependent component version compatibility 5. Check the log files Application scenario example: org.apache.catalina.LifecycleExceptionexception caused by database connection exception SpringBoot application starts org.apache.catalina.LifecycleException When developing […]
Tag: lifecycle
Upgrade Esxi version using Lifecycle Manager
Managing ESXi patches is every VMware admin’s bread and butter. It’s not the most glamorous job, but it is essential. However, as your vSphere environment grows, it can become time consuming to manage VMware patches across 100s of ESXi hosts. Enter vSphere Lifecycle Manager (vLCM)! In this article, you’ll learn how to update ESXi hosts […]
What is the difference between Spring Lifecycle and SmartLifecycle?
When we want to do some initialization operations or object destruction operations when the Spring container is started or closed, what can we do? Note that what I am talking about here is when the container is started or closed, not when a certain Bean is initialized or destroyed ~ Lifecycle Regarding the issues mentioned […]
Android Jetpack lifecycle aware component ViewModel
ViewModel Jetpack ViewModel is a component in the Android Jetpack component library, used to help developers manage UI-related data and status. The main role of ViewModel is to store and manage data related to the UI, and to handle state changes of the UI. Using ViewModel can solve the following problems: Avoid data loss caused […]
Jetpack lifecycle aware component ViewModel
ViewModel Jetpack ViewModel is a component in the Android Jetpack component library, used to help developers manage UI-related data and status. The main role of ViewModel is to store and manage data related to the UI, and to handle state changes of the UI. Using ViewModel can solve the following problems: Avoid data loss caused […]
Android Jetpack component architecture: the use and principle of Lifecycle
Android Jetpack component architecture: the use and principle of Lifecycle Introduction As the core component of lifecycle management in Jetpack, the Lifecycle component is the basis for other components such as LiveDate and ViewModel. This article will mainly introduce the use of Lifecycle and its operating principles. Usage of Lifecycle Let’s first pull a sample […]
Kotlin Coroutine – Lifecycle Job
1. Concept For each coroutine started by the coroutine builder, a Job instance will be returned to manage the life cycle of the coroutine. launch() directly returns the Job implementation, and the Deferred returned by async() implements the Job interface. Job public fun start(): Boolean public fun cancel(cause: CancellationException? = null) Canceling a Job will […]
Jetpack Series (1) — Lifecycle
Foreword Selected books – “Android Jetpack Development Principles Analysis and Practical Applications” – Author: Huang Linqing This series is mainly written for initial learning of jetpack development. It not only deepens the image, but also hopes to give myself more inspiration. This series will publish at least one article a week (for work reasons), and […]
The use and principles of Lifecycle
1. What is Lifecycle and how to use it Lifecyle is a component provided by Google Jetpack for us to monitor the life cycle of Activity and Fragment. In the past, when we wanted to know which life cycle the Activity or Frament was running in and perform corresponding operations, we needed to rewrite the […]
React Principles – React New Component Lifecycle
Table of Contents Extended learning materials React New Component Lifecycle【New life cycle】 Detailed explanation of the new life cycle of React components React component old life cycle v15.x Why does Fiber Reconciler have a new life cycle function? New component life cycle getDerivedStateFromProps Mounting phase update stage Unloading phase Exception catching New version component upgrade […]