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J2WEB course design example I found a good article about database query display error: Analysis of mysql coding errors. And then I have a crack free version navicat . extraction code: dv6k catalog Project Name: xixijiaxiang online e-book City Project background: (if I think about it myself, I won ...

Last week, I put my words out. It seems that all my friends are looking forward to it. In fact, SongGe can't wait to start a new series. However, the current Spring Security series is still in the process of serialization and has not been completed yet. It's a series of events. Keep your spirits up, and then you'll lose three times. It must be ...

catalog Delay loading Implement delayed loading Delay loading using allocation Using Collection to delay loading Delay loading It is to load data when it is needed, and not to load data when it is not needed. Lazy loading is also called lazy loading Advantages: query from single table first, ...

1. Overview 1. Problems faced by distributed system In the complex distributed architecture system, the failure of mutual service calls cannot be avoided. If the call link of A service is relatively long, the probability of such call failure will be higher. For example, if A calls B, B calls C, C c ...

Article catalog preface Introducing pagehelper dependency application.yml Medium configuration Add interface Test paging query interface Problem summary application.yml Configuration of pagehelper in preface If you use mybatis to write paging query, it's troublesome. You need to write the select ...

1. Preface The most common way in development is to use Aspect to realize AOP function. Next, we will simply use @ Aspect to realize AOP Aspect oriented programming. For the usage of Spring native AOP, please refer to the previous blog post AOP proxyfactory underlying implementation of spring 5 frame ...

@Configuration configure spring and start the spring container @Configuration is used to define the configuration class, which is labeled on the class, which is equivalent to < beans > in the xml configuration file of spring. Its function is to configure the spring container (application context) Example description: Configuration class @ ...

1 Question After Android 8.0, we turned on hotspots in the following way, but when we jump to the page, the hotspots will be disconnected and the phones will not be able to transfer files to each other. Permission Instructions: Android 8.0 requires location and GPS permissions, while hot spots on mobile phones cannot be turned on. if (Build. ...

Article Directory Dubbo Service Exposure and Service Consumption Principles (Based on Dubbo 2.6.5) Configuration parsing principles Based on XML Configuration Parsing Principle schema module description Configuration parsing principles based on annotations @EnableDubbo Role of ServiceAnnotationBe ...

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