MAC Eclipse Installation Lombok

Lombok is a tool that can be used in the form of annotations to help eliminate some of the necessary but bloated Java code, by using the corresponding annotations, you can generate the corresponding method when compiling the source code, such as the class attribute of the Get/set/tostring ()/class construction method.

　　

Below is a note on how Mac Eclipse installs Lombok

1, download the corresponding jar package Lombok.jar,:https://projectlombok.org/download

2. Integrate Lombok into eclipse

(1) Lombok copy to the Eclipse.app/contents/eclipse directory;

　　　　　　

(2) Add the following content to the Eclipse.ini tail

-javaagent:.. /eclipse/lombok.jar-vmargs-javaagent:lombok.jar

3. Restart Eclipse.

The following notes are commonly used

　　1. Introduction of Lombok jar in MAVEN project

<!--Https://mvnrepository.com/artifact/org.projectlombok/lombok -<Dependency>    <groupId>Org.projectlombok</groupId>    <Artifactid>Lombok</Artifactid>    <version>1.16.20</version>    <Scope>Provided</Scope></Dependency>

　　2. Use annotations

@Data  Public class User {        privateint  ID;         Private String userName;         Private Date birthday;}

　　
@Setter and @Getter

Annotations provide the setting method for a property on a property (or, of course, on a class), and the default generated method is public, and you can set Accesslever if you want to modify it. As follows

 Public class User {        privateint  ID;         Private String userName;         Private Date birthday;}

@ToString

Annotations on the class, generate the ToString () method, which, by default, prints your class name and each field in order (comma delimited). This can be set to not contain which fields @tostring (exclude= "id"), if there is more than @tostring (exclude={"id", "name"}), if there is inheritance of the parent class, you can have it call the parent class ToString (), such as @tostring (Calllsuper = True)　　　　　

@ToString (exclude = "id")publicclass  User {        privateint ID;         Private String userName;         Private Date birthday;}　　

@NoArgsConstructor, @RequiredArgsConstructor, @AllArgsConstructor

@NoArgsConstructor generates an parameterless construction method. When there is a final field in the class that is not initialized, the compiler will error, @noargsconstructor (force = True) is available, and then the default value 0/false/null will be set for the final field without initialization.　　For fields with constraints, such as the @nonnull field, no checks or allocations are generated, so be aware that these constraints are not valid until these fields are properly initialized. @RequiredArgsConstructor generates a construction method (possibly with or without parameters), if with parameters, this parameter can only be a final decorated uninitialized field, or an uninitialized field with @nonnull annotations
@RequiredArgsConstructor (Staticname = "of") generates a static method of () and sets the construction method to private @AllArgsConstructor generates a full-parameter construction method @Data simultaneously generates @ 　　Getter @Setter functions such as @ToString @RequiredArgsConstructor. @Synchronized Add a sync lock to a method Synchronized more about the official documentation Https://projectlombok.org/features/all

MAC Eclipse Installation Lombok