如何将 gradle 属性传递到 Spring Boot 并在 Eclipse 中调试？

Question

应用程序在 Eclipse 中的 Gradle 任务下作为 bootRun 任务运行时按预期运行，但是，右键单击项目 --> 运行方式 --> Spring Boot App 不会替换以下原型中的属性值。

1. build.gradle 文件

import org.apache.tools.ant.filters.ReplaceTokens

plugins {
    id 'org.springframework.boot' version '2.6.1'
    id 'io.spring.dependency-management' version '1.0.11.RELEASE'
    id 'java'
    id 'eclipse'
}

group = 'com.sample.auto.expanson'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '11'

repositories {
    mavenCentral()
}

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'
}

test {
    useJUnitPlatform()
}

// enable auto property expansion for passing gradle property to spring boot
// https://www.baeldung.com/spring-boot-auto-property-expansion
processResources {
    duplicatesStrategy = 'include'
    with copySpec {
        from 'src/main/resources'
        include '**/application*.properties'
        include '**/application*.yaml'
        include '**/application*.yml'
        project.properties.findAll().each {
            prop ->
                if (prop.key != null) {
                    filter(ReplaceTokens, tokens: [(prop.key): prop.value.toString()])
                    filter(ReplaceTokens, tokens: [('project.' + prop.key): prop.value.toString()])
                }
        }
    }
}

1. gradle.properties

expansion.property=Hello Expansion Property!

1. application.properties

com.test.value=@expansion.property@

4. DemoApplication.java

package com.sample.auto.expanson.demo;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class DemoApplication implements CommandLineRunner {
    @Value("${com.test.value}")
    String expansionProperty;
    
    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }

    @Override
    public void run(String... args) throws Exception {
         System.out.println(expansionProperty);
    }

}

bootRun 任务产生预期的输出：

Hello Expansion Property!

BUILD SUCCESSFUL in 1s
4 actionable tasks: 4 executed

在 Eclipse 中将其作为 Spring Boot App 运行会导致文字输出，而不会替换值。

2021-12-04 21:49:35.598  INFO 27293 --- [           main] c.s.auto.expanson.demo.DemoApplication   : Started DemoApplication in 1.097 seconds (JVM running for 2.105)
@expansion.property@

Answer 1

你能找到正确的答案吗？如果你这样做，请发布。谢谢。