使用DSA密钥对生成XML签名，dsa密钥xml签名,import java.

使用DSA密钥对生成XML签名，dsa密钥xml签名,import java.

import java.security.KeyPair;import java.security.KeyPairGenerator;import java.security.SecureRandom;import java.util.Collections;import javax.xml.crypto.dsig.CanonicalizationMethod;import javax.xml.crypto.dsig.DigestMethod;import javax.xml.crypto.dsig.Reference;import javax.xml.crypto.dsig.SignatureMethod;import javax.xml.crypto.dsig.SignedInfo;import javax.xml.crypto.dsig.XMLSignature;import javax.xml.crypto.dsig.XMLSignatureFactory;import javax.xml.crypto.dsig.keyinfo.KeyInfo;import javax.xml.crypto.dsig.keyinfo.KeyInfoFactory;import javax.xml.crypto.dsig.keyinfo.KeyValue;import javax.xml.crypto.dsig.spec.C14NMethodParameterSpec;public class MainClass {  public static void main(String[] args) throws Exception {    KeyPairGenerator kpg = KeyPairGenerator.getInstance(\"DSA\");    kpg.initialize(1024, new SecureRandom());    KeyPair dsaKeyPair = kpg.generateKeyPair();    XMLSignatureFactory sigFactory = XMLSignatureFactory.getInstance();    Reference ref = sigFactory.newReference(\"#Body\", sigFactory.newDigestMethod(DigestMethod.SHA1,        null));    SignedInfo signedInfo = sigFactory.newSignedInfo(sigFactory.newCanonicalizationMethod(        CanonicalizationMethod.INCLUSIVE_WITH_COMMENTS, (C14NMethodParameterSpec) null), sigFactory        .newSignatureMethod(SignatureMethod.DSA_SHA1, null), Collections.singletonList(ref));    KeyInfoFactory kif = sigFactory.getKeyInfoFactory();    KeyValue kv = kif.newKeyValue(dsaKeyPair.getPublic());    KeyInfo keyInfo = kif.newKeyInfo(Collections.singletonList(kv));    XMLSignature xmlSig = sigFactory.newXMLSignature(signedInfo, keyInfo);  }}//该片段来自于http://byrx.net