JSP Jave如何将参数从jsp传递给java类 [英] JSP Jave how to pass parameter from jsp to java class

问题描述

大家好。



我有jsp页面，我想把这个jsp页面的参数传递给java类中的sql语句

和在另一个jsp页面中显示语句的输出。



谢谢

Hello everybody

I have jsp page and i want to pass parameter from this jsp page to sql statement in java class
and display output of statement in anther jsp page.

Thanks

推荐答案

有很多方法可以做到这一点。但最好的方法是使用MVC / MVC2（Model-View_Controller）模式。 Web中有很多教程，在开始之前阅读它们。

There are many way to do that. But the best approach is using MVC/MVC2(Model-View_Controller) pattern. Lots of tutorial are present in web, read them before start.

使用servlet很好......

下面给出的例子..

use servlet its fine...
example given below..

import java.io.DataInputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class Home1 extends HttpServlet {
	
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        String name;
        String date;
        String time;
        String guest;
        String address;
        String discription;

        name=request.getParameter("name");
        date=request.getParameter("date");
        time=request.getParameter("time");
        guest=request.getParameter("guest");
        address=request.getParameter("address");
        discription=request.getParameter("discription");
        HttpSession session=request.getSession(true);
        System.out.println("all is ok");
        try {
                sys.out.print(name);
                sys.out.print(date);
                sys.out.print(time);
                sys.out.print(guest);
                sys.out.print(address);
                sys.out.print(discription);
            } catch (Exception e) {

                e.printStackTrace();
            }
	}
}

您可以在jsp页面中设置属性。转发到动作类时，可以使用getParameter方法在动作类中访问数据

You can set the attributes in jsp page. when forwarding to the action class, the data will be accessible in action class using getParameter method

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