springboot加载yml文件获不到值
今天使用spring boot读取yml文件，这种多层嵌套的竟然无法读取到(value注解spring.redis.pool.max.wait)，即便加上全名也不行，然后网上搜到的内容也未曾满意，很多文章内容都是一样且重复的.最后放弃了查找，突发奇想之下解决了这个问题.
本文旨在如何读取多层嵌套的yml文件，希望能帮到众位.
以下是代码：
package com.boot.config;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
@Configuration
@ConfigurationProperties(prefix = "spring.redis;pool.max;pool.min")
@PropertySource(value = "classpath:redis.yml")
public class RedisConfiguration implements ApplicationListener<ApplicationEvent> {
@Value("${host}")
private String host;
@Value("${port}")
private Long port;
@Value("${timeout}")
private Long timeout;
@Value("${database}")
private Long database;
@Value("${wait}")
private Long poolMaxWait;
@Value("${idle}")
private Long poolMaxIdle;
@Value("${idle}")
private Long poolMinIdle;
@Value("${active}")
private Long poolMaxActive;
public void onApplicationEvent(ApplicationEvent event) {
// 打印属性
System.out.println("============= redisConnect ================");
System.out.println(this.toString());
}
@Override
public String toString() {
return "RedisConfiguration [host=" + host + ", port=" + port + ", timeout=" + timeout
+ ", database=" + database + ", poolMaxWait=" + poolMaxWait + ", poolMaxIdle="
+ poolMaxIdle + ", poolMinIdle=" + poolMinIdle + ", poolMaxActive=" + poolMaxActive
+ "]";
}
}#多层配置
spring:
redis:
database: 0
host: localhost
port: 6379
timeout: 0
pool:
max:
active: 8
wait: -1
idle: 8
min:
idle: 0日志打印如下所示：
============= redisConnect ================
RedisConfiguration [host=localhost, port=6379, timeout=0, database=0, poolMaxWait=-1, poolMaxIdle=0, poolMinIdle=0, poolMaxActive=8]
获取不到yml配置文件指定的值
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class App {
public static void main(String[] args) {
SpringApplication app = new SpringApplication(App.class);
ConfigurableApplicationContext context = app.run(args);
System.out.println(context.getEnvironment().getProperty("jdbc.pwd"));
context.close();
}
}apllication.yml 放置在classpath路径下
jdbc:
pwd: 123456 #冒号和数字之间有一个空格，没有否则获取失败，pwd前面有缩进两个字符ps：版本spring-4.3.2-release,springboot-1.4
以上为个人经验，希望能给大家一个参考，也希望大家多多支持编程网。
