Programmer Think

Characteristics of collection class: the type and size can be uncertain Usage scenario: the stored data should change frequently Common collection =================================================================== Collections are mainly divided into two categories: Collection and Map: Collection: It is the top-level parent class of a ...

</exclusion> </exclusions> </dependency> <!--HTTPClient--> <dependency> <groupId>com.squareup.okhttp3</groupId> <artifactId>okhttp</artifactId> <version>4.3.1</version> </dependency> <dependency> <groupId>com.squareup.okht ...

public class PathClassLoader extends BaseDexClassLoader { public PathClassLoader(String dexPath, ClassLoader parent) { super(dexPath, null, null, parent); } public PathClassLoader(String dexPath, String librarySearchPath, ClassLoader parent){ super(dexPath, null, librarySearchPath, parent); } } You can see that the only difference ...

public class App { public static void main(String[] args) { ApplicationContext context = new FileSystemXmlApplicationContext( "C:/work/IOC Containers/springframework.applicationcontext/src/main/resources/bean-factory- config.xml"); HelloApplicationContext obj = (HelloApplicationContext) context.getBean("helloApplicationContext"); obj.getMsg ...

1. Single instance Bean declaration **By default, Spring only creates a unique instance for each bean declared in the IOC container, which can be shared across the IOC container: all subsequent getBean() calls and bean references will return this unique bean instance. This scope is called singleton, * * it is the default scope for all bean ...

//Incoming JS object jQuery(object) //Incoming jQuery object jQuery(jQuery object) //Create a DOM element by passing in a string from the original HTML jQuery(html,[ownerDocument]) jQuery(html,[attributes]) //Pass in null parameter jQuery() //Bind a function that executes after the DOM document is loaded jQuery(callback) Therefore ...

If objects implement both the InitializingBean and the common initialization methods provided, the order of execution? Answer: InitializingBean is executed first, then general initialization method is executed. The injection must occur before the initialization operation. What exactly is an initialization operation? Initialization of resourc ...

summary preface ================================================================ Through the previous ten blogs, we have summarized and completed various login methods, such as form login, SMS verification code login and social account login. However, when the front and back ends are separated, the token based authentication method will be ...

1. Distributed delivery objects, or network transmission, need to be serialized 2. I call the method of your jvm, and the result is returned to my jvm for processing 3. Serialization preserves the state of an object For example, after tomcat is closed, the session object will be serialized to sessions In the ser file, load these sessions int ...

In fact, we have used the XxxAware interface before. For example, the Employee class we created earlier implements the ApplicationContextAware interface. The source code of the Employee class is as follows. package io.mykit.spring.plugins.register.bean; import org.springframework.beans.BeansException; import org.springframework.context.Applica ...