Question

我正在使用Dropwizard 1.0.0-rc2并希望停止注册默认的异常映射器。所有文档都建议添加

server:
    registerDefaultExceptionMappers: false

将阻止它们被注册，但是当我尝试将它们添加到配置文件中时，我得到一个ConfigurationParsingException，即server.registerDefaultExceptionMappers是一个无法识别的字段。

java.lang.RuntimeException: io.dropwizard.configuration.ConfigurationParsingException: application-config.yml has an error:
      * Unrecognized field at: server.registerDefaultExceptionMappers
        Did you mean?:
          - adminConnectors
          - applicationConnectors
          - requestLog
          - idleThreadTimeout
          - adminContextPath
            [19 more]

        Caused by:
        io.dropwizard.configuration.ConfigurationParsingException: application-config.yml has an error:
          * Unrecognized field at: server.registerDefaultExceptionMappers
            Did you mean?:
              - adminConnectors
              - applicationConnectors
              - requestLog
              - idleThreadTimeout
              - adminContextPath
                [19 more]

            Caused by:
            com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "registerDefaultExceptionMappers" (class io.dropwizard.server.DefaultServerFactory), not marked as ignorable (24 known properties: "umask", "gid", "idleThreadTimeout", "applicationContextPath", "adminContextPath", "adminMinThreads", "rootPath", "allowedMethods", "user", "uid", "nofileHardLimit", "adminMaxThreads", "adminConnectors", "applicationConnectors", "minThreads", "gzip", "maxQueuedRequests", "serverPush", "group", "shutdownGracePeriod", "maxThreads", "nofileSoftLimit", "startsAsRoot", "requestLog"])
             at [Source: N/A; line: -1, column: -1] (through reference chain: com.company.manager.ApplicationConfiguration["server"]->io.dropwizard.server.DefaultServerFactory["registerDefaultExceptionMappers"])

我该如何指定，或者它是1.0.0-rc2中的错误？

Answer 1

我刚做了一个小测试项目，看看它是否破损，它对我来说效果很好。我使用的是DW 1.0.0-rc2。

我的初级班：

public class Starter extends Application<Configuration> {

    @Override
    public void run(Configuration configuration, Environment environment) throws Exception {
        environment.jersey().register(HelloWorldResource.class);
    }

    public static void main(String[] args) throws Exception {
        new Starter().run("server", "/Users/artur/dev/repo/dw-test/src/main/resources/configuration.yaml");
    }

}

我的资源：

    @Path("/hello/world")
    public class HelloWorldResource {

        @GET
        public String get() {
            return "hello";
        }

    }

我的配置：

server:
    registerDefaultExceptionMappers: false
    applicationConnectors:
    - type: http
      port: 9085

这启动就好了。我调试了DefaultServerFactory，它按预期工作。

我不确定为什么这不适合你，但我建议尽可能简单地开始并重现问题，然后用可运行的代码更新你的问题进行测试。

你可能是自己打破了：

更改AbstractServerFactory
使用不使用此标志的自定义ServerFactory
某处错字
配置文件无效

您尝试设置的字段位于子类中。也许你不小心重新配置了忽略子类类型的不同ObjectMapper？

此时我只是猜测，所以我会等待一些反馈。但是，要回答你的问题，上面是它的工作原理，似乎没有错误:)

我希望有所帮助，

阿图尔

Dropwizard 1.0.0-rc2 registerDefaultExceptionMappers unrecogized field

1 个答案: