<!-- 支援 @ConfigurationProperties 註解 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-configuration-processor</artifactId>
			<optional>true</optional>
		</dependency>

2、配置檔案（application.yml）中配置各個屬性的值：

myProps: #自定義的屬性和值
  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

@Component
@ConfigurationProperties(prefix="myProps") //接收application.yml中的myProps下面的屬性
public class MyProps {
	private String simpleProp;
	private String[] arrayProps;
	private List<Map<String, String>> listProp1 = new ArrayList<>(); //接收prop1裡面的屬性值
	private List<String> listProp2 = new ArrayList<>(); //接收prop2裡面的屬性值
	private Map<String, String> mapProps = new HashMap<>(); //接收prop1裡面的屬性值
	
	public String getSimpleProp() {
		return simpleProp;
	}
	
	//String型別的一定需要setter來接收屬性值；maps, collections, 和 arrays 不需要
	public void setSimpleProp(String simpleProp) {
		this.simpleProp = simpleProp;
	}
	
	public List<Map<String, String>> getListProp1() {
		return listProp1;
	}
	public List<String> getListProp2() {
		return listProp2;
	}

	public String[] getArrayProps() {
		return arrayProps;
	}

	public void setArrayProps(String[] arrayProps) {
		this.arrayProps = arrayProps;
	}

	public Map<String, String> getMapProps() {
		return mapProps;
	}

	public void setMapProps(Map<String, String> mapProps) {
		this.mapProps = mapProps;
	}
}
 

4、單元測試用例：

@Autowired
	private MyProps myProps; 
	
	@Test
	public void propsTest() throws JsonProcessingException {
		System.out.println("simpleProp: " + myProps.getSimpleProp());
		System.out.println("arrayProps: " + objectMapper.writeValueAsString(myProps.getArrayProps()));
		System.out.println("listProp1: " + objectMapper.writeValueAsString(myProps.getListProp1()));
		System.out.println("listProp2: " + objectMapper.writeValueAsString(myProps.getListProp2()));
		System.out.println("mapProps: " + objectMapper.writeValueAsString(myProps.getMapProps()));
	}
 

測試結果：

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"}