Spring Boot 1.5.0升级2.0.0后无法读取Vault配置求助

1. 修正配置前缀与缩进 #

Spring Cloud Vault在Finchley版本（对应Spring Boot 2.0）中，配置前缀从spring.vault改为spring.cloud.vault，同时你的bootstrap.yml存在缩进错误，正确配置如下：

spring:
  cloud:
    vault:
      enabled: true
      authentication: TOKEN
      host: ${VAULT_ADDR:localhost}
      port: ${VAULT_PORT:8200}
      token: ${VAULT_TOKEN:eafaa220-901acaafffb5}
      scheme: http

2. 添加Validation依赖 #

报错提示No validator could be found for constraint 'javax.validation.constraints.NotEmpty'，说明缺少JSR-380验证依赖。Spring Boot 2.0中spring-boot-starter-validation需单独引入，修改build.gradle：

springBootVersion = '2.0.9.RELEASE'
springCloudVersion = 'Finchley.SR4'

compile('org.springframework.boot:spring-boot-starter-web')
compile('org.springframework.boot:spring-boot-starter-actuator')
compile('org.springframework.boot:spring-boot-configuration-processor')
compile('org.springframework.boot:spring-boot-starter-hateoas')
compile('org.springframework.cloud:spring-cloud-starter-consul-config')
compile('org.springframework.cloud:spring-cloud-starter-netflix-hystrix')
implementation('org.springframework.cloud:spring-cloud-starter-vault-config')
// 新增Validation依赖
compile('org.springframework.boot:spring-boot-starter-validation')

3. 验证配置加载逻辑 #

• 确认spring-cloud-starter-vault-config依赖已正确引入（当前配置已包含）
• 本地启动时，检查VAULT_ADDR、VAULT_PORT、VAULT_TOKEN环境变量是否正确，或确认配置中的默认值生效

内容的提问来源于stack exchange，提问作者rakeeee