创建一个扩展的类，HttpServlet并@WebServlet在其上添加注释，其中包含servlet应该侦听的所需URL。@H_419_1@
@WebServlet("/yourServletURL")
public class YourServlet extends HttpServlet {}
然后只<form action> 指向该URL。我还建议对非幂等请求使用POST方法。您应该确保您所指定的nameHTML表单输入字段的属性（<input>，<select>，<textarea>和<button>）。这代表HTTP请求参数名称。最后，您还需要确保将感兴趣的输入字段包含在所需表单的内部，而不是外部。@H_419_1@
以下是各种HTML表单输入字段的一些示例：@H_419_1@
<form action="${pageContext.request.contextPath}/yourServletURL" method="post">
<p>Normal text field.
<input type="text" name="name" /></p>
<p>Secret text field.
<input type="password" name="pass" /></p>
<p>Single-selection radiobuttons.
<input type="radio" name="gender" value="M" /> Male
<input type="radio" name="gender" value="F" /> Female</p>
<p>Single-selection check@R_24_2419@.
<input type="check@R_24_2419@" name="agree" /> Agree?</p>
<p>Multi-selection check@R_24_2419@es.
<input type="check@R_24_2419@" name="role" value="USER" /> User
<input type="check@R_24_2419@" name="role" value="ADMIN" /> Admin</p>
<p>Single-selection dropdown.
<select name="countryCode">
<option value="NL">Netherlands</option>
<option value="US">United States</option>
</select></p>
<p>Multi-selection list@R_24_2419@.
<select name="animalId" multiple="true" size="2">
<option value="1">Cat</option>
<option value="2">Dog</option>
</select></p>
<p>Text area.
<textarea name="message"></textarea></p>
<p>Submit button.
<input type="submit" name="submit" value="submit" /></p>
</form>
doPost()在您的Servlet中创建一个方法，该方法将提交的输入值作为由输入字段name（id！）键入的请求参数。您可以用于request.getParameter()从单值字段request.getParameterValues()获取提交的值，以及从多值字段获取提交的值。@H_419_1@
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String name = request.getParameter("name");
String pass = request.getParameter("pass");
String gender = request.getParameter("gender");
boolean agree = request.getParameter("agree") != null;
String[] roles = request.getParameterValues("role");
String countryCode = request.getParameter("countryCode");
String[] animalIds = request.getParameterValues("animalId");
String message = request.getParameter("message");
boolean submitButtonPressed = request.getParameter("submit") != null;
// ...
}
进行必要的验证，最后以常规的JDBC / DAO方式将其持久保存在数据库中。@H_419_1@
User user = new User(name, pass, roles);
userDAO.save(user);
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