使用JDBC API来执行数据库查询,然后使用XML库(如JAXP或DOM)将结果写入XML文件,最后将XML文件发送到指定的Web服务器。代码示例。
时间: 2023-03-08 09:10:13 浏览: 81
示例代码如下:
try
{
// 注册JDBC驱动程序
Class.forName("com.mysql.jdbc.Driver");
// 打开数据库连接
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydb","root","password");
// 创建Statement对象
Statement stmt = conn.createStatement();
// 执行SQL查询
ResultSet rs = stmt.executeQuery("select * from table");
// 使用JAXP将查询结果写入XML文件
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document document = builder.newDocument();
Element root = document.createElement("results");
document.appendChild(root);
while(rs.next())
{
Element row = document.createElement("row");
root.appendChild(row);
// 将查询结果写入XML文件
Element id = document.createElement("id");
id.appendChild(document.createTextNode(rs.getString("id")));
row.appendChild(id);
Element name = document.createElement("name");
name.appendChild(document.createTextNode(rs.getString("name")));
row.appendChild(name);
}
// 将XML文件发送到指定的Web服务器
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
StreamResult result = new StreamResult(new File("results.xml"));
DOMSource source = new DOMSource(document);
transformer.transform(source, result);
}
catch(Exception e)
{
e.printStackTrace();
}