import com.sun.org.apache.xml.internal.security.transforms.implementations.TransformC14NWithComments; //导入依赖的package包/类
/**
 * This method registers the default algorithms.
 */
public static void registerDefaultAlgorithms() {
    transformSpiHash.put(
        Transforms.TRANSFORM_BASE64_DECODE, TransformBase64Decode.class
    );
    transformSpiHash.put(
        Transforms.TRANSFORM_C14N_OMIT_COMMENTS, TransformC14N.class
    );
    transformSpiHash.put(
        Transforms.TRANSFORM_C14N_WITH_COMMENTS, TransformC14NWithComments.class
    );
    transformSpiHash.put(
        Transforms.TRANSFORM_C14N11_OMIT_COMMENTS, TransformC14N11.class
    );
    transformSpiHash.put(
        Transforms.TRANSFORM_C14N11_WITH_COMMENTS, TransformC14N11_WithComments.class
    );
    transformSpiHash.put(
        Transforms.TRANSFORM_C14N_EXCL_OMIT_COMMENTS, TransformC14NExclusive.class
    );
    transformSpiHash.put(
        Transforms.TRANSFORM_C14N_EXCL_WITH_COMMENTS, TransformC14NExclusiveWithComments.class
    );
    transformSpiHash.put(
        Transforms.TRANSFORM_XPATH, TransformXPath.class
    );
    transformSpiHash.put(
        Transforms.TRANSFORM_ENVELOPED_SIGNATURE, TransformEnvelopedSignature.class
    );
    transformSpiHash.put(
        Transforms.TRANSFORM_XSLT, TransformXSLT.class
    );
    transformSpiHash.put(
        Transforms.TRANSFORM_XPATH2FILTER, TransformXPath2Filter.class
    );
}