如何在servlet中获取参数值？

String paramValue = request.getParameter("paramName");

String[] paramValues = request.getParameterValues("paramName");

Map<String, String[]> parameterMap = request.getParameterMap();

<form action="MyServlet" method="post">
    Name: <input type="text" name="name"><br>
    Age: <input type="text" name="age"><br>
    <input type="submit" value="Submit">
</form>

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class MyServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String name = request.getParameter("name");
        String age = request.getParameter("age");
        
        // 处理获取到的参数值
        response.getWriter().println("Name: " + name + ", Age: " + age);
    }
}

int age = Integer.parseInt(request.getParameter("age"));