Java 读取 YAML

    com.fasterxml.jackson.dataformat
    jackson-dataformat-yaml
    2.13.3



    com.fasterxml.jackson.core
    jackson-core
    2.13.3

.
├──  Main.java
└──  pojo
        ├── Config.java
        ├── Qq.java
        ├── Feishu.java
        └── Dingtalk.java

config.yml

yaml 中的层级关系，转化到 Java 中，类似于类的包裹

qq:
  account:
  key:

feishu:
  account:
  key:

dingtalk:
  account:
  key:

public static void main(String[] args) throws Exception{
    File f = new File("path_to_config.yml");
    ObjectMapper objectMapper = new ObjectMapper(new YAMLFactory());
    Config config = objectMapper.readValue(f, Config.class);
}

import lombok.Getter;
import lombok.Setter;

@Setter
@Getter
public class Config {
    // 确保变量名的大小写和 yaml 文件参数一致
    private Qq qq;
    private Feishu feishu;
    private DingTalk dingtalk;
}

以 Qq.java 为例

import lombok.Getter;
import lombok.Setter;

import java.util.Arrays;

@Setter
@Getter
public class Qq {
    private Long account;
    private String key;
}

1. yaml 中 @ 等字符，可以使用单双引号包裹
2. yaml 区分大小写

1. YAML file read/parse and write in java| Latest tutorials: https://www.w3schools.io/file/yaml-java-read-write/

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