我正在運(yùn)行l(wèi)ombok的一些示例，并嘗試使用lombok.var。我正在使用jdk 17和帶有spring引導(dǎo)的lombok 1.18.2 4。我知道JEP286在Jdk 10中提供了var類型，但lombok文檔似乎認(rèn)為這應(yīng)該有效。一開始，我試圖通過IntelliJ構(gòu)建這個，而我的其他所有l(wèi)ombok教程都運(yùn)行良好，但當(dāng)我使用lombok.var時除外。因此，我切換到使用./gradlew clean build構(gòu)建表單終端，仍然得到相同的錯誤：

.../src/main/java/com/example/service/EmployeeImageService.java:6:error: illegal reference to restricted type 'var'
import lombok.var;
             ^

這是我的gradle文件：

plugins {
    id 'java'
    id 'org.springframework.boot' version '3.0.1'
    id 'io.spring.dependency-management' version '1.1.0'
}

group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '17'

configurations {
    compileOnly {
        extendsFrom annotationProcessor
    }
}

repositories {
    mavenCentral()
}

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-actuator'
    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
    implementation 'org.springframework.boot:spring-boot-starter-data-rest'
    implementation 'org.springframework.boot:spring-boot-starter-web'
    compileOnly 'org.projectlombok:lombok:1.18.24'
    developmentOnly 'org.springframework.boot:spring-boot-devtools'
    runtimeOnly 'com.h2database:h2'
    annotationProcessor 'org.projectlombok:lombok:1.18.24'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'
}

test {
    useJUnitPlatform()
}

我在項目的根目錄中包含了lombok.config。它具有以下設(shè)置：

lombok.nonNull.exceptionType=IllegalArgumentException
lombok.var.flagUsage=ALLOW

包含lombok導(dǎo)入的示例類：

package com.example.service;

import com.example.dao.Employee;
import com.example.repository.EmployeeRepository;
import lombok.RequiredArgsConstructor;
import lombok.var;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;
import java.util.Optional;

@RequiredArgsConstructor
@Service
public class EmployeeImageService {
    private static final Logger LOGGER = LoggerFactory.getLogger(EmployeeImageService.class);
    private final EmployeeRepository employeeRepository;

    public byte[] findEmployeeImageById(final Long id){
        LOGGER.info("EmployeeImageService.findEmployeeImageById() - retrieving employee image");
        var message = "Hello";
        message = message + " World!";

        var employee = employeeRepository.findById(id);
        return employee.map(Employee::getImage).orElse(null);
    }
...
}

正如我所說，我知道Jdk 10中的JEP 286發(fā)布了var引用類型，但我不知道是什么導(dǎo)致了這個導(dǎo)入lombok.var引發(fā)編譯時錯誤：

.../src/main/java/com/example/service/EmployeeImageService.java:6:error: illegal reference to restricted type 'var'
import lombok.var;
             ^