pfx与jks互转

package 
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.security.Key;
import java.security.KeyStore;
import java.security.cert.Certificate;
import java.util.Enumeration;


public class ConventPFX {
public static final String PKCS12 = "PKCS12";
public static final String JKS = "JKS";
public static final String PFX_KEYSTORE_FILE = "e:\\dss.pfx";
public static final String PFX_KEY_PASSWORD = "12345678";
public static final String KEYSTORE_PASSWORD = "12345678";
public static final String JKS_KEYSTORE_FILE = "E:\\home\\tomcat.keystore";



public static void coverTokeyStore() {
try {
KeyStore inputKeyStore = KeyStore.getInstance("PKCS12");
FileInputStream fis = new FileInputStream(PFX_KEYSTORE_FILE);
char[] nPassword = null;


if ((KEYSTORE_PASSWORD == null)
|| KEYSTORE_PASSWORD.trim().equals("")) {
nPassword = null;
} else {
nPassword = KEYSTORE_PASSWORD.toCharArray();
}


inputKeyStore.load(fis, PFX_KEY_PASSWORD.toCharArray());
fis.close();


KeyStore outputKeyStore = KeyStore.getInstance("JKS");


outputKeyStore.load(null, KEYSTORE_PASSWORD.toCharArray());


Enumeration enums = inputKeyStore.aliases();


while (enums.hasMoreElements()) { //   we   are   readin   just   one   certificate.  


String keyAlias = (String) enums.nextElement();


System.out.println("alias=[" + keyAlias + "]");


if (inputKeyStore.isKeyEntry(keyAlias)) {
Key key = inputKeyStore.getKey(keyAlias, nPassword);
Certificate[] certChain = inputKeyStore
.getCertificateChain(keyAlias);


outputKeyStore.setKeyEntry(keyAlias, key, KEYSTORE_PASSWORD
.toCharArray(), certChain);
}
}


FileOutputStream out = new FileOutputStream(JKS_KEYSTORE_FILE);


outputKeyStore.store(out, nPassword);
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void coverToPfx() {
try {
KeyStore inputKeyStore = KeyStore.getInstance("JKS");
FileInputStream fis = new FileInputStream(JKS_KEYSTORE_FILE);
char[] nPassword = null;


if ((KEYSTORE_PASSWORD == null)
|| KEYSTORE_PASSWORD.trim().equals("")) {
nPassword = null;
} else {
nPassword = KEYSTORE_PASSWORD.toCharArray();
}


inputKeyStore.load(fis, nPassword);
fis.close();


KeyStore outputKeyStore = KeyStore.getInstance("PKCS12");


outputKeyStore.load(null, KEYSTORE_PASSWORD.toCharArray());


Enumeration enums = inputKeyStore.aliases();


while (enums.hasMoreElements()) { //   we   are   readin   just   one   certificate.  


String keyAlias = (String) enums.nextElement();


System.out.println("alias=[" + keyAlias + "]");


if (inputKeyStore.isKeyEntry(keyAlias)) {
Key key = inputKeyStore.getKey(keyAlias, nPassword);
Certificate[] certChain = inputKeyStore
.getCertificateChain(keyAlias);


outputKeyStore.setKeyEntry(keyAlias, key, KEYSTORE_PASSWORD
.toCharArray(), certChain);
}
}


FileOutputStream out = new FileOutputStream(PFX_KEYSTORE_FILE);


outputKeyStore.store(out, nPassword);
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
// coverTokeyStore();
coverToPfx();
}
}