java读取yaml文件并转化成json格式数据

一、在maven项目中导入依赖

        <!--yaml文件转化成json格式-->
         <dependency>
            <groupId>org.yaml</groupId>
            <artifactId>snakeyaml</artifactId>
            <version>1.29</version>
        </dependency>
        <!--json格式转化-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.4</version>
        </dependency>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.13.0</version>
        </dependency>

二、编辑yanl文件

apiName: token
description: 获取用户登录测试环境需要的token
url: http://cas-uat.kye.com
request:
  method: POST
  path: /cas_server/v2/oauth/token
  headers:
    Content-Type: application/json
  body:
    service: http://edge.uat.erp.com/#/
    account: 612528
    password: i7ytg4VKUaOAnzQvBw6hlixDQgz5
    device_id: fb516938c8227cc5ca1ec5e0be661a34
    app_id: gj_xdbvffz-hYOdFXSRlMg==
    grant_type: password
    data: mJ2T6sNCN1koP808YI6SCw3guuKr
validate:
  status_code: 200
  response_body:
    - key: success
      value: true
      type: string
    - key: code
      value: 0
      type: integer

三、读取yaml文件并转化成json格式字符串

/**
     * @param filename yaml文件名称
     * @return 返回yaml文件中对应的json数据
     */
    public static String yamlToJson(String filename) {
        String jsonData;
        try {
            // 创建Yaml对象
            Yaml yaml = new Yaml();
            // 打开文件输入流
            FileInputStream input = new FileInputStream(filename);
            // 读取整个文件为一个Map对象,如果yaml文件为列表，则数据类型为list
            Map<String, Object> data = yaml.load(input);
            // 创建ObjectMapper对象用于将数据转换为JSON
            ObjectMapper mapper = new ObjectMapper();
            // 启用格式化输出
            mapper.enable(SerializationFeature.INDENT_OUTPUT);
            // 将数据转换为JSON字符串
            jsonData = mapper.writeValueAsString(data);
            // 返回读取的数据
            return jsonData;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

四、提取json字符串中制定的key值

//处理json格式数据
    public static String handleJsonResponse(String response, String field) {
        if (StringUtils.isBlank(field)) {
            return response;
        }
        //将json格式的字符串转化成json对象
        JSONObject jsonObject = JSON.parseObject(response);
        return getFieldValue(jsonObject, field);
    }

    //提取json对象中某个字段的值
    public static String getFieldValue(JSONObject jsonObject, String fieldName) {
        for (String key : jsonObject.keySet()) {
            Object value = jsonObject.get(key);
            if (key.equals(fieldName)) {
                return value.toString();
            } else if (value instanceof JSONObject) {
                String fieldValue = getFieldValue((JSONObject) value, fieldName);
                if (fieldValue != null) {
                    return fieldValue;
                }
            } else if (value instanceof JSONArray jsonArray) {
                String fieldValue = getFieldValue(jsonArray, fieldName);
                if (fieldValue != null) {
                    return fieldValue;
                }
            }
        }
        return null;
    }

    //提取json对象中某个字段的值
    public static String getFieldValue(JSONArray jsonArray, String fieldName) {
        for (Object objectValue : jsonArray) {
            if (objectValue instanceof JSONObject) {
                String fieldValue = getFieldValue((JSONObject) objectValue, fieldName);
                if (fieldValue != null) {
                    return fieldValue;
                }
            } else if (objectValue instanceof JSONArray) {
                String fieldValue = getFieldValue((JSONArray) objectValue, fieldName);
                if (fieldValue != null) {
                    return fieldValue;
                }
            }
        }
        return null;
    }