Dropwizard YAML文件中无法识别的字段 [英] Unrecognized Field in Dropwizard YAML File

问题描述

启动使用与MySQL的数据库连接的Dropwizard应用程序时出现以下错误：

I'm getting the following error when launching a Dropwizard application that uses a database connection to MySQL:

app.yaml has an error:
* Unrecognized field at: database
  Did you mean?:
    - metrics
    - instanceId
    - logging
    - server
    - statsConfig
      [12 more]

在Dropwizard配置文件的末尾，我具有以下内容：

At the end of my Dropwizard configuration file, I have the following:

database:
  driverClass: com.mysql.jdbc.Driver
  user: ${MYSQL_USERNAME}
  password: ${MYSQL_PASSWORD}
  url: ${MYSQL_URL}

在我的配置类中，我有以下内容：

And in my configuration class, I have the following:

@Valid()
@NotNull()
@JsonProperty()
private static DataSourceFactory database;

public static DataSourceFactory getDatabase() {
  return database;
}

public static void setDatabase(final DataSourceFactory database) {
  AppConfig.database = database;
}

其他几个复杂的配置对象正在正确加载（这是一个很大的配置文件） ，但事实并非如此。任何想法我为什么会收到此错误？

Several other complex configuration objects are loading correctly (it's a pretty big config file), but this one is not. Any ideas why I'm getting this error?

EDIT 这个问题与此类似：在读取YAML文件时出现UnrecognizedPropertyException 。但是，该解决方案对我不起作用。

EDIT This question is similar to this one: UnrecognizedPropertyException While Reading A YAML File. However, that solution didn't work for me.

推荐答案

编辑：检查示例应用程序< a href = https://github.com/dropwizard/dropwizard/blob/master/dropwizard-example/src/main/java/com/example/helloworld/HelloWorldConfiguration.java#L53-L61 rel = nofollow noreferrer >此处和此处。

check the example application here and here.

1. @JsonProperty（）-这里有多余的括号。


2. 私有静态DataSourceFactory数据库； -删除 static 从这里开始。有关外观的示例，请参考文档。


3. 还要根据文档和= new DataSourceFactory（）; Questions / 30079790 /在数据库中无法识别的字段-您平均计量服务器日志记录>此问题。

1. @JsonProperty() - there are extra brackets here.
2. private static DataSourceFactory database; - remove static from here. Reference the docs for an example of how it should look.
3. Also add the = new DataSourceFactory(); as per docs and this question.

我已经检查过旧版本的 Dropwizard ，而数字2是您最直接的问题。

I've checked on old version of Dropwizard and number 2 is your most immediate problem.

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