import com.sun.xml.internal.ws.encoding.policy.MtomPolicyMapConfigurator; //导入依赖的package包/类
private PolicyMapConfigurator[] loadConfigurators() {
    final Collection<PolicyMapConfigurator> configurators = new LinkedList<PolicyMapConfigurator>();

    // Add map configurators that are already built into JAX-WS
    configurators.add(new AddressingPolicyMapConfigurator());
    configurators.add(new MtomPolicyMapConfigurator());

    // Dynamically discover remaining map configurators
    PolicyUtil.addServiceProviders(configurators, PolicyMapConfigurator.class);

    return configurators.toArray(new PolicyMapConfigurator[configurators.size()]);
}