java - 读取 yaml 文件时发生 UnrecognizedPropertyException

Question

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" });
}

配置.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，我在读取文件后立即收到错误 -

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"])

在浏览了几个主题之后，我意识到这可能是因为 Jackson 无法忽略少数属性。

我尝试了一些东西 -

1) 添加注解@JsonIgnoreProperty(但不确定是否添加在预期的位置)

2) Jackson how to ignore properties

他们都没有帮助。谁能指出我在这里可能缺少的东西？

Answer 1

将以下行添加到您的配置类

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

 public DataSourceFactory getDataSourceFactory() {
    return database;
 }