Springboot中读取.yml文件

自定义配置文件application-dev.yml

1 spring:
2     dataresource:
3         druid:
4             driver-class-name: com.mysql.jdbc.Driver
5             url: jdbc:mysql://127.0.0.1:3306/appcloud?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC
6             username: root
7             password: root    

创建一个实体类 configYml

 1 @Component
 2 @PropertySource("classpath:application-dev.yml")//制定读取配置文件的路径
 3 @ConfigurationProperties(prefix = "spring.datasource.druid")//指定读取的前缀
 4 public class ConfigYml {
 5 　　
 6     @Value("${driver-class-name}")//配置文件中的命名为driver-class-name;java中不能命名不能有下划线。所以可以使用@Value注解获取值
 7     private String driver;
 8     private String url;
 9     private String username;
10     private String password;
11     
12     @Override
13     public String toString() {
14         return "ConfigYml{" +
15                 "driver='" + driver + '\'' +
16                 ", url='" + url + '\'' +
17                 ", username='" + username + '\'' +
18                 ", password='" + password + '\'' +
19                 '}';
20     }
21 
22     public String getDriver() {
23         return driver;
24     }
25 
26     public void setDriver(String driver) {
27         this.driver = driver;
28     }
29 
30     public String getUrl() {
31         return url;
32     }
33 
34     public void setUrl(String url) {
35         this.url = url;
36     }
37 
38     public String getUsername() {
39         return username;
40     }
41 
42     public void setUsername(String username) {
43         this.username = username;
44     }
45 
46     public String getPassword() {
47         return password;
48     }
49 
50     public void setPassword(String password) {
51         this.password = password;
52     }
53    
54 
55 
56 }

1 @Autowired
2 private ConfigYml configYml;

直接调用configYml的get方法即可