java – 读取yaml文件时出现UnrecognizedPropertyException

发布时间：2020-12-15 04:19:52 所属栏目：Java 来源：网络整理

导读：在使用dropwizard时, 我的dropwizard服务读取config.yml文件. public void run() throws Exception { this.run(new String[] { "server","src/main/resources/config.yml" });} Config.yml文件： database: # the name of your JDBC driver driverClass: com

在使用dropwizard时,

我的dropwizard服务读取config.yml文件.

public void run() throws Exception {
    this.run(new String[] { "server","src/main/resources/config.yml" });
}

Config.yml文件：

database:
  # the name of your JDBC driver
  driverClass: com.mysql.jdbc.Driver

  # the username
  user: user2connect

  # the password
  password: password2connect

  # the JDBC URL
  url: jdbc:mysql://url.to.connect:port

但是,一旦读取文件,我就会收到错误 –

Exception in thread "main" com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "database" (class com.service.config.DropWizardConfiguration),not marked as ignorable (4 known properties:,"http","httpConfiguration","logging","loggingConfiguration"])
 at [Source: N/A; line: -1,column: -1] (through reference chain: com.service.config.DropWizardConfiguration["database"])

经过几个主题后,我意识到这可能是因为杰克逊无法忽视一些属性.

我尝试了几件事 –

1)添加注释@JsonIgnoreProperty(但不确定我是否在预期的位置添加了它)

2)Jackson how to ignore properties

他们都没有帮助.谁能指出我在这里可能会缺少什么？

解决方法

将以下行添加到配置类

@Valid
 @NotNull
 @JsonProperty
 private DataSourceFactory database = new DataSourceFactory();

 public DataSourceFactory getDataSourceFactory() {
    return database;
 }

（编辑：李大同）

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