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Way 1: Rewrite spring's default thread pool 1. Configuration of related parameters #Thread-related configuration #Number of core threads task.pool.corePoolSize: 5 #Maximum number of threads in thread pool task.pool.maxPoolSize: 20 #Maximum idle time of threads task.pool.keepAliveSeconds: 300 #Maxim ...

Background: ** In multithreaded programming, in order to avoid inconsistency of shared data, the operation of shared data must be locked. In java, synchronized keyword can be used to achieve exclusive lock, but there are two major drawbacks in using this keyword: 1. The blocking time of threads cannot b ...

title: Several methods of removing superfluous characters at the end of a string date: 2018-08-17 22:12:58 tags: [Java, method] --- When splicing strings, we often find many unwanted characters, which are very annoying. Here are three ways to get rid of annoyance. //Cyclic generation of json format data public static String CreateJson() { ...

The company's own ota upgrade apk, download upgrade package upgrade, prompt package compatibility verification failed; The errors reported by different OTA apks may be different, and the log s should be the same; 9.0 has strict authority management. avc: denied { read } for name="config.gz" dev="proc" i ...

Introduction of SPI implementation principle SericeLoader Load method Finding Implementation Classes Create examples SericeLoader from SPI Practical Learning in JAVA One of the most important ways to implement lookup is to: ServiceLoader shouts = ServiceLoader.load(Handler.class); Its class stru ...

1. Implementation of Route Registration Route auto-registration is easy to implement, just get all the Controller configuration to route, the code is as follows package com.nmtx.route; import java.util.ArrayList; import java.util.List; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.jfinal.config.Routes; import com.jfinal ...

Links to the original text: https://blog.csdn.net/yajing8/article/details/73548896 Using Java double loop to print various pattern summaries: the outer loop controls the number of rows, which is fixed, and the inner loop controls the output ...

Overview of token tokens generated by Jwt 1. Stateful landing and stateless landing Stateful service, that is, the server needs to record the client information of each session to identify the identity of the client and process requests according to the identity of the user, such as session in tomcat ...

/* reverse(List): Reverse the order of elements in a List * shuffle(List): Random sorting of List set elements * sort(List): Sort the elements of a specified List collection in ascending order according to the natural order of the elements * sort(List,Comparator): List collection elements are generated ...

Implementation results: adopt Display details Execution time: 8 ms, beating 66.35% of all Java submissions Memory consumption: 37.6 MB, beating 29.53% of all Java submissions Title: Given two arrays, write a function to compute their intersection. Example 1: Input: nums1 = [1,2,2,1], nums2 = ...