How to correctly use the 'Object Assign' framework in the Java class library

The "Object Assign" framework is correctly used in the Java library 1 Introduction "Object Assign" is a framework used to assign object attribute assignment in the Java class library.It provides a simple and intuitive way to copy the attributes of the object to avoid manually writing a tedious assignment code.This article will introduce how to use this framework correctly and provide some example code. 2. Object assign basic usage The Object Assign framework implements dynamic copying of attributes by reflective mechanism.Use this framework to follow the steps below: 2.1 Import related dependencies First, the relevant dependencies of importing the Object Assign framework need to be introduced in the project.You can add the following dependencies to implementation in the project construction file (such as Pom.xml): <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.12.0</version> </dependency> 2.2 Create source objects and target objects Before using the Object Assign framework to copy the attribute, you need to create a source object and target object.The source object contains the attributes to be copied, and the target object will receive the attribute value after copying. public class SourceObject { private String name; private int age; // Getter and Setter methods } public class TargetObject { private String name; private int age; // Getter and Setter methods } 2.3 Performing attribute copy Copy the attribute with Object Assign framework is very simple.Just call `ObjectAssign.assign ()` method, and pass the source object and target object. SourceObject sourceObject = new SourceObject(); sourceObject.setName("John"); sourceObject.setAge(30); TargetObject targetObject = new TargetObject(); ObjectAssign.assign(sourceObject, targetObject); 3. Advanced usage In addition to basic usage, the Object Assign framework also provides some advanced functions, which can be customized as needed. 3.1 Ignore specific fields If the source object contains some fields that do not need to be copied, you can use the `@iGnoreassign` annotation to mark these fields.When the Object Assign framework is replicated, the marked field is automatically ignored. public class SourceObject { @IgnoreAssign private String ignoreField; // Getter and Setter methods } 3.2 Custom attribute mapping If the attribute name of the source object and the target object is incomplete, you can use the `@mapto` annotation to specify the mapping relationship of the attribute.The Object Assign framework is replicated according to the definition of the annotation. public class SourceObject { @MapTo("targetName") private String name; // Getter and Setter methods } public class TargetObject { private String targetName; // Getter and Setter methods } 4. Summary The Object Assign framework provides a simple, intuitive and flexible solution for the attribute replication of the Java library.Through the above introduction, we understand the basic usage of the framework and the application of some advanced functions.In actual development, the Object Assign framework can be used flexibly according to specific needs to improve development efficiency. The above is an introduction to how to correctly use the "Object Assign" framework in the Java class library. I hope it will be helpful to you.