我不知道它在 grails 中的情况,但这有助于使用 dropwizard 0.7.1 run() 方法的 java:
ResourceConfig jrConfig = environment.jersey().getResourceConfig();
environment.jersey().register(new RestErrorsHandler(jrConfig ));
为异常映射创建此类 -> 回馈个人响应!
@Provider
public class RestErrorsHandler implements ExceptionMapper<Exception> {
/**
* Deletes all ExpetionMappers.
*
* @param jrConfig
*/
public RestErrorsHandler(
ResourceConfig jrConfig)
{
// Remove all of Dropwizard's custom ExceptionMappers
Set<?> dwSingletons = jrConfig.getSingletons();
List<Object> singletonsToRemove = new ArrayList<Object>();
for (Object s : dwSingletons) {
// Remove all Exception mappers
if (s instanceof ExceptionMapper) {
singletonsToRemove.add(s);
}
}
for (Object s : singletonsToRemove) {
jrConfig.getSingletons().remove(s);
}
}
public Response toResponse(
Exception exception)
{
//Handle different exceptions in another way
if (exception.getClass().equals(JsonParseException.class)){
Response response = RestErrorsHandler.generalResponse(exception);
return response ;
} else if(exception.getClass().equals(JsonParseException.class)){
Response response = RestErrorsHandler.generalResponse(exception);
return response ;
} else if(exception.getClass().equals(Class.class)){
Response response = RestErrorsHandler.generalResponse(exception);
return response ;
}
//genral problem -> output default
Response response = RestErrorsHandler.generalResponse(exception);
return response ;
}
public static Response generalResponse(Exception exception)
{
return Response.status(Status.BAD_REQUEST).type(MediaType.TEXT_PLAIN)
.entity("if you just want to give back a string, but could also be default html page or whatever").build();
}
}