springboot中如何实现JSON字符串转换为YAML呢?

JSON转YAML的实现思路

1.引入依赖
2.使用
  new YAMLMapper().writeValueAsString(JSONNode)
  方法即可将json字符串转换为YAML

//添加依赖
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.6.5</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.dataformat</groupId>
    <artifactId>jackson-dataformat-yaml</artifactId>
    <version>2.6.5</version>
</dependency>
 

//业务逻辑代码
//读取 JSON 字符串
JsonNode jsonNodeTree = new ObjectMapper().readTree(jsonStr);
//转换成 YAML 字符串
String yamlStr = new YAMLMapper().writeValueAsString(jsonNodeTree);
 
效果展示
---
apiVersion: "app.alauda.io/v1alpha1"
kind: "HelmRequest"
metadata:
  name: "mongodb-java-6666"
spec:
  chart: "bitnami/mongodb"
  namespace: "test-hl2"
  releaseName: "mongodb-java-6666"
  values:
    service:
      type: "NodePort"
    auth:
      rootUser: "admin"
      rootPassword: "admin123123"
  version: "11.0.4"

方式2:JSON转YAML

//添加依赖
<dependency>
    <groupId>org.yaml</groupId>
    <artifactId>snakeyaml</artifactId>
    <version>1.18</version>
</dependency>
 
//业务逻辑代码
Yaml yaml = new Yaml();
//将 JSON 字符串转成 Map
Map<String,Object> map = (Map<String, Object>) yaml.load(jsonUrl);
//转换成 YAML 字符串
String yamlStr = yaml.dumpAsMap(map);
 
效果展示
kind: Service
apiVersion: v1
metadata:
  name: tomcat
  labels:
    app: tomcat
spec:
  ports:
  - name: tcp-8080
    protocol: TCP
    port: 8080
  selector:
    app: tomcat