SpringBoot读取yml配置文件

1:spring-boot启动类

@SpringBootApplication
@EnableConfigurationProperties({YmlConfig.class}) 
public class ReadApplication {
    public static void main(String[] args) {
        SpringApplication.run(ReadApplication.class, args);
    }
}

2：yml配置文件

ws: #自定义的属性和值
  simpleProp: simplePropValue
  arrayProps: 1,2,3,4,5
  listProp1:
    - name: abc
      value: abcValue
    - name: efg
      value: efgValue
  listProp2:
    - config2Value1
    - config2Vavlue2
  mapProps:
    key1: value1
    key2: value2

3：读取yml配置文件的类。

@ConfigurationProperties(prefix="ws") //application.yml中的ws下的属性  
public class YmlConfig {
    private String simpleProp;  
    private String[] arrayProps;  
    private List<Map<String, String>> listProp1 = new ArrayList<>(); //接收prop1里面的属性值  
    private List<String> listProp2 = new ArrayList<>(); //接收prop2里面的属性值  
    private Map<String, String> mapProps = new HashMap<>(); //接收prop1里面的属性值  
}

4:单元测试类

@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes = ReadApplication.class)
public class ReadApplicationYmlTests {
    @Autowired
    private YmlConfig ymlConfig;

    @Test
    public void testDisplayYmlValue() throws JsonProcessingException {
        System.out.println("simpleProp: " + ymlConfig.getSimpleProp());  

        ObjectMapper objectMapper = new ObjectMapper();
        System.out.println("arrayProps: " + objectMapper.writeValueAsString(ymlConfig.getArrayProps()));  
        System.out.println("listProp1: " + objectMapper.writeValueAsString(ymlConfig.getListProp1()));  
        System.out.println("listProp2: " + objectMapper.writeValueAsString(ymlConfig.getListProp2()));  
        System.out.println("mapProps: " + objectMapper.writeValueAsString(ymlConfig.getMapProps()));  
    }

}

5:控制台输出的测试内容：

simpleProp: simplePropValue
arrayProps: ["1","2","3","4","5"]
listProp1: [{"name":"abc","value":"abcValue"},{"name":"efg","value":"efgValue"}]
listProp2: ["config2Value1","config2Vavlue2"]
mapProps: {"key1":"value1","key2":"value2"}