你需要的JDBC (Java Data Base Connectivity)一些基本的瞭解, Servlet。有噸的方式來實現你想要什麼,但低於是一個小例子,來給你一些想法:
1.創建一個servlet來處理用戶輸入和數據插入到SQL
package mycoolapp;
public RegistrationServlet extends HttpServlet {
protected void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
// Obtain submitted form data
String name = req.getParameterName("Name");
String address = req.getParameterName("Address");
String phone = req.getParameterName("Phone");
String email = req.getParameterName("Email");
// Setup your database datasource, this is different for each db vendor. On production environment most likely you need a connection pooled datasource
DataSource ds = // setup ds here..
Connection conn = ds.getConnection();
// Prepare the SQL statement to insert, plug in the values
PreparedStatement stmt = conn.prepareStatement("INSERT INTO people (fullName, address, telephone, email) VALUES (?, ?, ?, ?)");
stmt.setString(1, name);
stmt.setString(2, address);
stmt.setString(3, phone);
stmt.setString(4, email);
// Execute the insert
stmt.executeUpdate();
conn.close();
// Dispatch into success page
RequestDispatcher requestDispatcher = req.getRequestDispatcher("/registerSuccess.jsp");
requestDispatcher.forward(req, res);
}
}
2.聲明和地圖上的WEB-INF/web.xml部署描述符中的servlet
下面設置將映射的servlet到http://myhost/mywarname/register
<web-app>
<servlet>
<servlet-class>mycoolapp.RegistrationServlet</servlet-class>
<servlet-name>RegistrationServlet</servlet-name>
</servlet>
<servlet-mapping>
<servlet-name>RegistrationServlet</servlet-name>
<url-pattern>/register</url-pattern>
</servlet-mapping>
</web-app>
3.配置您的形式張貼到servlet
<form method="post" action="register">
....
</form>
警告幾句:
- servlet代碼上面沒有配備相應的異常和錯誤處理
- 上面的JDBC代碼沒有附帶適當的事務管理
- 上面的例子並不意味着行業標準的最佳實踐,它實際上是一種陳舊的方法。它顯示了Java servlet和數據庫交互如何工作的基本原理。當您構建正確的應用程序時,請考慮使用網絡框架,如Spring,JSF或其他。