Project Lombok is a java library that automatically plugs into your editor and build tools, spicing up your java.
Never write another getter or equals method again, with one annotation your class has a fully featured builder, Automate your logging variables, and much more.

以下内容除特别标注外，均为原创。涵盖 lombok main package 大部分用法。

Getter & Setter

Nonnull

Constructor

ToString & Equals & HashCode

Var & Val

Data & Value

Builder

使用示例¹

 @Builder
 class Example<T> {
     private T foo;
     private final String bar;
 }

 class Example<T> {
     private T foo;
     private final String bar;
     
     private Example(T foo, String bar) {
         this.foo = foo;
         this.bar = bar;
     }
     
     public static <T> ExampleBuilder<T> builder() {
         return new ExampleBuilder<T>();
     }
     
     public static class ExampleBuilder<T> {
         private T foo;
         private String bar;
         
         private ExampleBuilder() {}
         
         public ExampleBuilder foo(T foo) {
             this.foo = foo;
             return this;
         }
         
         public ExampleBuilder bar(String bar) {
             this.bar = bar;
             return this;
         }
         
         @java.lang.Override public String toString() {
             return "ExampleBuilder(foo = " + foo + ", bar = " + bar + ")";
         }
         
         public Example build() {
             return new Example(foo, bar);
         }
     }
 }

SneakyThrows

pom.xml

    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>1.18.6</version>
        <scope>provided</scope>
    </dependency>