Syntax yaml profile.

1, the basic grammar

　　1. k :( space) v: designates a pair of key-value pairs ( Note: There must be a space );

　　2. ** ** spaces of indentation control hierarchy; as long as one is left-aligned data, are the same levels

　　3. The value written hump and with "-" character is the same value, such as: lastName and last-name are possible

　　4. Liezi:

　　　　server:
   　　　　 port: 8081
   　　　　 path: /hello

 

　　Note: The attributes and values ​​are case sensitive

2, the value written

　　1. literal: Common values ​​(numbers, strings, Boolean)

　　　　 k: v: literally write directly;

1 without the default string in single or double quotes;

　　　　　　 2. String special treatment

"": double quotation marks; not escape special characters string inside; special characters as represented by itself means like

example: name: "zhangsan \ n lisi ": Output; zhangsan wrap lisi

'': single quote; will escape special characters, special characters finally only a common data string

example: name: 'zhangsan \ n lisi ': output; zhangsan \ n lisi

　　2. Object, Map:

　　　　1.k: v: to write the relationship between attributes and values ​​of an object on the next line; Note indent, object or k: v way, pay attention to left-aligned.

　　　　　　example:

　　　　　　　　friends:
       　　　　　　　　 lastName: zhangsan
       　　　　　　　　 age: 20

　　　　2. inline wording:

　　　　　　friends: {lastName: zhangsan,age: 18}

　　3. Array (List, Set)

　　　　1. - value represents an element in the array,

　　　　　　example:

　　　　　　　　pets:
 　　　　　　　　　　- cat
 　　　　　　　　　　- dog
　　　　　　　　　　 - pig

　　　　2. inline wording

　　　　　　pets: [cat,dog,pig]

 

Use Cases:

　　1.yaml file.

person:
    lastName: hello
    age: 18
    boss: false
    birth: 2017/12/12
    maps: {k1: v1,k2: 12}
    lists:
      - lysis
      - zhaoliu
    dog:
      name: Puppies
      age: 12

　　2.javaBean：

/**
 * The value of the attribute of each configuration file is mapped to the component
 * @ConfigurationProperties: Tell SpringBoot all the attributes and configuration files in this class for the corresponding configuration bind;
 * 1.prefix = "person": the configuration file for the K value of the person's mapping assignment.
 * Note 2. ConfigurationProperties the corresponding processor to import a jar
 *            <dependency>
 *                <groupId>org.springframework.boot</groupId>
 *                <artifactId>spring-boot-configuration-processor</artifactId>
 *                <optional>true</optional>
 *            </dependency>
 *    
 * 3. need javabean poured into the container with @Component. To provide a container of @ConfigurationProperties function;
 *
 */
@Component
@ConfigurationProperties(prefix = "person")
public class Person {

    private String lastName;
    private Integer age;
    private Boolean boss;
    private Date birth;

    private Map<String,Object> maps;
    private List<Object> lists;
    private Dog dog;