Programmer Group

Articles Catalogue 1. Beans in Spring are generated according to scope, representing the scope of bean s. 2.Spring's inheritance, 3.Spring's dependence. 4.Spring reads external resources. 1. Beans in Spring are generated according to scope, representing the scope of bean s. There are four types ...

I have written an article to download the novel before, but the speed is worrying, because a lot of time is wasted on the writing of files, so is there any way to optimize it? Articles Catalogue Problems in Optimizing Solution Icon Establishment of queues Allocate different queues for different proces ...

/** * Using BufferedReader to convert Inputstream into String * * @param in * @return String */ public static String Inputstr2Str_Reader(InputStream in, String encode) { String str = ""; try { if (encode == null || e ...

For a long time, I was vague about the two concepts of control inversion and dependency injection. Closing my eyes and thinking about it, I always felt dizzy. But in order to be a good Java engineer, it took me a week to figure them out. 01. Tight Coupling In the process of coding, we usually need two or more classes to cooperate with each ot ...

Recently, the number of low-density population has been estimated, referring to a lot of information. First of all, I want to build a CSRnet for training by myself. The code implementation of this network can be referred to. The paper and code are as follows. Interested parties can do it by themselves ...

Simple use   Add Listview control to set related properties Use system adapters or custom adapters as appropriate Custom adapter needs to add item layout first Binding data to adapters Associate list view with adapter to display list data   Simple code presentation   Follow these step ...

Application scenarios When we have more than 5 million tables or more, we will consider the use of sub-database sub-tables; when our system is still not satisfied with a cache server, we will use multiple cache servers, then how do we access the back table or cache server, we certainly will not use it. Loop or random, we will use the same hash ...

Catalog 9. AOP in Spring 9.1 Details of AOP 9.1.1 Terminology of AOP 9.2 AOP configuration for Spring 9.2.1 applicationContext.xml 9.2.2 Writing of pointcut expressions 9.2.3 Configuration File Modification 9.3 Five notification types of Spring AOP (using XML) 9.3.1 Logger.java 9.3.2 applic ...

Data preprocessing problem analysis Irrelevant feature deletion Data Type Conversion Missing Value Processing problem analysis The data to be processed this time is to predict whether loan users will be overdue. There are 89 field s in the data, of which "status" is the result label: 0 ...

Recently, I found that there were fewer and fewer questions I knew I was interested in, so I was ready to aggregate technical questions and answers from other platforms, such as segmentfault, stackoverflow, and so on. To accomplish this work, there must be crawlers.I stopped by to study colly, a crawler framework for Go. Overview Coly is a well ...