How do I read the XML string using Http response/request?

When my HTTP POST action is perform, the action will return me a XML string as shown in the link, https://www.neteller.com/gateway/netdirectv4.cfm?amount=150.00&net_account=458415554241&secure_id=896365&bank_acct_num=6789&currency=USD&merchant_id=1234&merch_transid=1102&merch_account=john123&custom_1=test123&custom_2=test123&custom_3=test123&test=1
The above XML string will be send back by one of the payment gateway.
How do I retrieve all the attribute name and value from the XML string so that it can be stored in my database?
The XML string will be as shown below:
<?xml version="1.0" encoding="ISO-8859-1"?><netdirect version="4.0">
          <approval>yes</approval>
          <amount>150.00</amount>
          <trans_id>403070</trans_id>
          <error>none</error>
          <fee>4.35</fee>
          <time>{ts '2006-06-23 06:14:19'}</time>
          <firstname>Test</firstname>
          <lastname>Test</lastname>
          <email>[email protected]</email>
          <custom_1>test123</custom_1>
          <custom_2>test123</custom_2>
          <custom_3>test123</custom_3>
          <dafee>0.00</dafee>
          <client_currency>USD</client_currency>
          <client_amount>150.00</client_amount>
          <merchant_currency>USD</merchant_currency>
          <merchant_amount>150.00</merchant_amount>
          <fxrate>1.0</fxrate>
          </netdirect>

How about parsing the XML? Check out JAXP.
http://java.sun.com/webservices/jaxp/index.jsp

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