yml文件读入写出

yml文件读入写出：

jar包引入：
https://repo1.maven.org/maven2/org/jyaml/jyaml/1.3/jyaml-1.3.jar

        <dependency>
            <groupId>org.jyaml</groupId>
            <artifactId>jyaml</artifactId>
            <version>1.3</version>
        </dependency>

读取application.yml文件：

@Test
    void test() throws FileNotFoundException {
        File dumpFile = new File(System.getProperty("user.dir") + "/src/main/resources/application.yml");
        Map<String, Object> configTemp = Yaml.loadType(dumpFile, LinkedHashMap.class);
        YamlDecoder dec = new YamlDecoder(new FileInputStream(dumpFile));
        while (true) {
            try {
                configTemp = (Map<String, Object>) dec.readObject();
                System.out.println(configTemp);
            } catch (EOFException e) {
                break;
            }
        }
    }

###写出yml文件：

@Test
    public void editInformation() throws Exception {
        /* Initialize data. */
        Person michael = new Person();
        Person floveria = new Person();
        Person[] children = new Person[2];
        children[0] = new Person();
        children[1] = new Person();

        michael.setName("Michael Corleone");
        michael.setAge(24);
        floveria.setName("Floveria Edie");
        floveria.setAge(24);
        children[0].setName("boy");
        children[0].setAge(3);
        children[1].setName("girl");
        children[1].setAge(1);

        michael.setSpouse(floveria);
        floveria.setSpouse(michael);

        michael.setChildren(children);
        floveria.setChildren(children);

        /* Export data to a YAML file. */
        File dumpFile = new File("John.yaml");
        try {
            Yaml.dump(michael, dumpFile);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    }

实体类

public class Person {

    private String name;
    private int age;
    private Person spouse;
    private Person[] children;
    public Person(){
    }
    public void setName(String name) {
        this.name = name;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public void setSpouse(Person spouse) {
        this.spouse = spouse;
    }
    public void setChildren(Person[] children) {
        this.children = children;
    }
    public String getName() {
        return this.name;
    }
    public int getAge() {
        return this.age;
    }
    public Person getSpouse() {
        return this.spouse;
    }
    public Person[] getChildren() {
        return this.children;
    }

}

参考：https://blog.csdn.net/m0_37739193/article/details/78690680

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