| |
20. 6. 14. 转换结果为XML |
|
import java.io.StringWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
public class Main {
public static void main(String args[]) throws Exception {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.newDocument();
Element results = doc.createElement("Results");
doc.appendChild(results);
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con = DriverManager
.getConnection("jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=c:/access.mdb");
ResultSet rs = con.createStatement().executeQuery("select * from product");
ResultSetMetaData rsmd = rs.getMetaData();
int colCount = rsmd.getColumnCount();
while (rs.next()) {
Element row = doc.createElement("Row");
results.appendChild(row);
for (int i = 1; i <= colCount; i++) {
String columnName = rsmd.getColumnName(i);
Object value = rs.getObject(i);
Element node = doc.createElement(columnName);
node.appendChild(doc.createTextNode(value.toString()));
row.appendChild(node);
}
}
DOMSource domSource = new DOMSource(doc);
TransformerFactory tf = TransformerFactory.newInstance();
Transformer transformer = tf.newTransformer();
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
transformer.setOutputProperty(OutputKeys.METHOD, "xml");
transformer.setOutputProperty(OutputKeys.ENCODING, "ISO-8859-1");
StringWriter sw = new StringWriter();
StreamResult sr = new StreamResult(sw);
transformer.transform(domSource, sr);
System.out.println(sw.toString());
con.close();
rs.close();
}
}
|
|
|