src/servlet/ShangpinListServlet.java

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package servlet;

import java.io.IOException;
import java.util.ArrayList;

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

import bean.SelectBean;

public class ShangpinListServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public ShangpinListServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		String sql = "select * from [user]";
		String sql1 = "select * from quanxian";
		String sql2 = "select a.id as userid,a.name as username,quanxian,b.name as qname,suoming from [user] a, quanxian b where a.quanxian=b.id";
		String sql3 = "select * from leibie";
		String sql4 = "select * from wenxian";
		String sql5 = "select count(leibie) as shu,leibie from wenxian group by leibie";
		String [] args = {"id","name","pwd","quanxian"};
		String [] args1 = {"id","name","suoming"};
		String [] args2 = {"userid","username","quanxian","qname","suoming"};
		String [] args3 = {"id","leibie"};
		String [] args4 = {"id","name","neirong","cucu","leibie"};
		String [] args5 = {"shu","leibie"};
		SelectBean sb = new SelectBean();
		ArrayList al = sb.select(sql, args);
		ArrayList al1 = sb.select(sql1, args1);
		ArrayList al2 = sb.select(sql2, args2);
		ArrayList al3 = sb.select(sql3, args3);
		ArrayList al4 = sb.select(sql4, args4);
		ArrayList al5 = sb.select(sql5, args5);
		request.setAttribute("shangpin", al);
		request.setAttribute("quanxian", al1);
		request.setAttribute("souyin", al2);
		request.setAttribute("leibie", al3);
		request.setAttribute("wenxian", al4);
		request.setAttribute("tongji", al5);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {