classification
boutiqueWould you rather know introspection if you only know java reflection?
1. Foreword In the previous article, we encapsulated a Mybatis universal Mapper. To get entity class attributes, I used...
Free 
boutiqueHow Java handles NPE issues gracefully
1. Foreword For Java developers, null is a troublesome type, and NPE can occur if you are not careful...
Free 
boutiqueJava Development Tips: Reduce the Use of Magic Points
1. Preface When refactoring old code, I encountered similar writing:
public void attend(String value)...
Free 
boutiqueSummary of core knowledge of java annotation
1. preface
A few years ago, our project was still running on structs 2, and once I asked a colleague if he knew
Spring...
Free 
exclusiveBlack Box Penetration Testing Guide: SQL Injection
Test using automated scanning tools
Tools:AppScan,WebInspect,AWVS, etc.
Test method: Use automatic...
Free 
boutiqueSeveral ways to remove elements from Java Collection
1. The preface operation set is something Java programmers repeat almost every day. Today let's study...
Free 
boutiqueUnder what circumstances cannot Java generics be used
1. Introduction Java 1.5 introduces generics to ensure type safety, prevent type conversion exceptions at run time, and allow classes to...
Free 
boutiqueJava random number traps
preface
We should be familiar with random numbers. We use them to generate Captcha in business, or we have low requirements for repeatability...
Free 
exclusiveBlack Box Penetration Testing Guide: XML Injection
I. attack scenarios
Send XML requests directly
described
Many application systems or components require...
Free 
boutiqueFull analysis of Collectors in java8
1. The preface mentioned Collectors in an article about Collection removal elements yesterday. Believe a lot...
Free 
boutiqueMerge operations for Java Stream streams
1. Introduction Java Stream Api provides many useful Apis that make it convenient for us to combine collections or multiple similar types...
Free 
boutiqueWhen calculating in Java development, please be sure to use BigDecimal to calculate. BigDecimal summarizes and summarizes
Preface Today, a junior developer in the group asked why the tester tested that the price calculation module he wrote had calculation deviations...
Free 
exclusiveBlack box penetration testing guidance passed down
I. attack scenarios
Upload webshell directly
Describe many application systems...
Free 
boutiqueGet file path in java
1. Introduction In Java development, we often need to obtain the path of a file, such as reading configuration files, etc. Today we will...
Free 
English 
Chinese