我是 Java 新手，在生成 yaml 時遇到問題。我想通過 java 生成一個 yaml 文件，如下所示，我為此使用了 Snake yaml。mart: details: name: Koushik purpose: yaml generation for testing owner: - name: Bobby email: [email protected] - name: Chaminda email: [email protected]嘗試了類似下面的內容，但沒有按照我期望的方式實現 yaml。public class yamlGeneration { public static String get_details() { String name = "Koushik"; String purpose = "yaml generation for testing"; String notification_name_1 = "Bobby"; String notification_email_1 = "[email protected]"; String notification_name_2 = "Chaminda"; String notification_email_2 = "[email protected]"; Map<String, Object> notification = new LinkedHashMap<>(); List<Map<String, Object>> owner = new ArrayList<Map<String, Object>>(); notification.put("name",notification_name_1); notification.put("email",notification_email_1); owner.add(notification); notification.put("name",notification_name_2); notification.put("email",notification_email_2); owner.add(notification); Map<String, Object> details = new LinkedHashMap<>(); details.put("name",name); details.put("purpose",purpose); details.put("owner",owner); Map<String, Object> mart = new LinkedHashMap<>(); mart.put("details",details); Yaml yaml = new Yaml(); return yaml.dump(mart).toString();}public static void main(String args[]){ String str = get_details(); System.out.println(str); }}
1 回答
慕仙森
TA貢獻1827條經驗 獲得超8個贊
為了獲得正確的樣式，您需要創建并配置一個DumperOptions對象并將其傳遞給類的構造函數Yaml。
public static void main(String[] args) {
? ? Map<String, Object> root = new LinkedHashMap<>();
? ? Map<String, Object> mart = new LinkedHashMap<>();
? ? Map<String, Object> details = new LinkedHashMap<>();
? ? details.put("name", "Koushik");
? ? details.put("purpose", "yaml generation for testing");
? ? details.put("owner", Arrays.asList(
? ? ? ? ? ? Map.of("name", "Bobby", "email", "[email protected]"),
? ? ? ? ? ? Map.of("name", "Chaminda", "email", "[email protected]")
? ? ));
? ? mart.put("details", details);
? ? root.put("mart", mart);
? ? DumperOptions options = new DumperOptions();
? ? options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
? ? Yaml yaml = new Yaml(options);
? ? System.out.println(yaml.dump(root));
}
輸出：
mart:
? details:
? ? name: Koushik
? ? purpose: yaml generation for testing
? ? owner:
? ? - name: Bobby
? ? ? email: [email protected]
? ? - name: Chaminda
? ? ? email: [email protected]
另外，您可以創建Representers和Resolvers，以便可以使用自定義類而不是嵌套的Map。
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