JavaWeb / After_End /User_information_case /src /main /java /findUserByPageServlet.java

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import domain.PageBean;
import domain.User;
import service.impl.userServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Map;

@WebServlet("/findUserByPageServlet")
public class findUserByPageServlet extends HttpServlet {
    @Override
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("UTF-8");

        //1、获取参数
        String currentPage = request.getParameter("currentPage");//当前页码
        String rows = request.getParameter("rows");//每页显示的条数

        if (currentPage == null || "".equals(currentPage)) {
            currentPage = "1";
        }
        if (rows == null || "".equals(rows)) {
            rows = "5";
        }

        //获取条件查询的参数
        Map<String, String[]> condition = request.getParameterMap();


        //2、调用service查询
        userServiceImpl service = new userServiceImpl();
        PageBean<User> pb = service.findUserByPage(currentPage, rows,condition);

        //3、将PageBean存入request
        request.setAttribute("pb", pb);
        request.setAttribute("condition", condition);//将查询条件存入

        //4、转发到list.jsp
        request.getRequestDispatcher("/list.jsp").forward(request, response);

    }

    @Override
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        this.doGet(request, response);
    }
}

	import domain.PageBean;
	import domain.User;
	import service.impl.userServiceImpl;

	import javax.servlet.ServletException;
	import javax.servlet.annotation.WebServlet;
	import javax.servlet.http.HttpServlet;
	import javax.servlet.http.HttpServletRequest;
	import javax.servlet.http.HttpServletResponse;
	import java.io.IOException;
	import java.util.Map;

	@WebServlet("/findUserByPageServlet")
	public class findUserByPageServlet extends HttpServlet {
	@Override
	public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
	request.setCharacterEncoding("UTF-8");

	//1、获取参数
	String currentPage = request.getParameter("currentPage");//当前页码
	String rows = request.getParameter("rows");//每页显示的条数

	if (currentPage == null \|\| "".equals(currentPage)) {
	currentPage = "1";
	}
	if (rows == null \|\| "".equals(rows)) {
	rows = "5";
	}

	//获取条件查询的参数
	Map<String, String[]> condition = request.getParameterMap();


	//2、调用service查询
	userServiceImpl service = new userServiceImpl();
	PageBean<User> pb = service.findUserByPage(currentPage, rows,condition);

	//3、将PageBean存入request
	request.setAttribute("pb", pb);
	request.setAttribute("condition", condition);//将查询条件存入

	//4、转发到list.jsp
	request.getRequestDispatcher("/list.jsp").forward(request, response);

	}

	@Override
	public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
	this.doGet(request, response);
	}
	}