1. Foreword In the previous article, we encapsulated a Mybatis universal Mapper. To get entity class attributes, I used...
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1. Foreword For Java developers, null is a troublesome type, and NPE can occur if you are not careful...
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1. Preface When refactoring old code, I encountered similar writing: public void attend(String value)...
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1. preface A few years ago, our project was still running on structs 2, and once I asked a colleague if he knew Spring...
2021-12-11 843 0Free
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Test using automated scanning tools Tools:AppScan,WebInspect,AWVS, etc. Test method: Use automatic...
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1. The preface operation set is something Java programmers repeat almost every day. Today let's study...
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1. Introduction Java 1.5 introduces generics to ensure type safety, prevent type conversion exceptions at run time, and allow classes to...
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preface We should be familiar with random numbers. We use them to generate Captcha in business, or we have low requirements for repeatability...
2021-12-11 732 0Free
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I. attack scenarios Send XML requests directly described Many application systems or components require...
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1. The preface mentioned Collectors in an article about Collection removal elements yesterday. Believe a lot...
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1. Introduction Java Stream Api provides many useful Apis that make it convenient for us to combine collections or multiple similar types...
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Preface Today, a junior developer in the group asked why the tester tested that the price calculation module he wrote had calculation deviations...
2021-12-11 850 0Free
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I. attack scenarios Upload webshell directly Describe many application systems...
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1. Introduction In Java development, we often need to obtain the path of a file, such as reading configuration files, etc. Today we will...
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