import play.filters.gzip.GzipFilter; //导入依赖的package包/类
@Inject
public PitchFilters(SecurityHeadersFilter secHeadersFilter,
                    AllowedHostsFilter allowedHostsFilter,
                    GzipFilter gzipFilter) {

    filters = new EssentialFilter[]{secHeadersFilter.asJava(),
            allowedHostsFilter.asJava(),
            gzipFilter.asJava()};
}
 

import play.filters.gzip.GzipFilter; //导入依赖的package包/类
@SuppressWarnings("unchecked")
@Override
public <T extends EssentialFilter> Class<T>[] filters() {
    return new Class[] {
        GzipFilter.class
    };
}
 

import play.filters.gzip.GzipFilter; //导入依赖的package包/类
@SuppressWarnings("unchecked")
public <T extends EssentialFilter> Class<T>[] filters() {
    return new Class[]{GzipFilter.class};
}
 

import play.filters.gzip.GzipFilter; //导入依赖的package包/类
@Override
public <T extends EssentialFilter> Class<T>[] filters() {
	return new Class[]{GzipFilter.class};
}
 

import play.filters.gzip.GzipFilter; //导入依赖的package包/类
@SuppressWarnings("unchecked")
@Override
public <T extends EssentialFilter> Class<T>[] filters() {
	return (Class[]) ObjectArrays.concat(GzipFilter.class, super.filters());
}