从 YAML 文件解析对象列表 [英] Parse a List of objects from YAML file

问题描述

我正在尝试将 Yaml 文件解析为对象列表，但出现以下错误.

I am attempting to parse my Yaml file to a list of object But I am getting the following error.

Method threw 'com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException' exception.

我的 Java 代码:

My Java code:

public class ViewResultsModel
{
   @JsonProperty
   List<FileModel> files;

   public ViewResultsModel()
   {
   }

   public ViewResultsModel(List<FileModel> files)
   {
      this.files = files;
   }
 // getters and setters omitted
}


public class FileModel
{
   @JsonProperty
   String fileType;
   @JsonProperty
   String destination;
   @JsonProperty
   String filePath;
 // getters and setters omitted
}


public static void main(String[] args) throws IOException
   {
      File file = new File("Template.yaml");
      final ObjectMapper mapper = new ObjectMapper(new YAMLFactory()); // jackson databind
      mapper.readValue(file, ViewResultsModel.class);
   }

YAML 文件:

file:
  fileType: TXT
  fileDestination: there
  filePath: C:/

file:
  fileType: PDF
  fileDestination: here
  filePath: C:/

我想读取 Yaml 并创建一个 FileModel 对象列表

I want to read the Yaml and create a List of FileModel objects

推荐答案

您的 YAML 对象具有您的 Java 类不知道的成员 fileDestination.而不是

Your YAML objects have a member fileDestination which your Java class does not know. Instead of

@JsonProperty
String destination;

试试

@JsonProperty("fileDestination")
String destination;

顺便说一句，您的输入不是合法的 YAML.您两个 项目命名file，其中只有一个是可能的.您想建立一个列表吗?

BTW, your input is not legal YAML. You two items name file where only one is possible. Did you want to build a list?

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