sel.java

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package ser;

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

import b.Handle;
import b.IdentifyVo;

public class sel extends HttpServlet {
	public sel() {
		super();
	}

	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		response.setContentType("text/html");
		
		request.setCharacterEncoding("gb2312");
		
		String action = request.getParameter("a");
		// 增加
		if (action.equals("insert")){
			String name = request.getParameter("text_name");
			IdentifyVo iv = new IdentifyVo();
			iv.setName(name);
			Handle handle = new Handle();
			handle.voInsert(iv);
			RequestDispatcher p = request.getRequestDispatcher("/servlet.html");
			p.forward(request, response);
		}else if (action.equals("select")) {
			// 查询
			Handle handle = new Handle();
			request.setAttribute("name", handle.voSelect());
			RequestDispatcher p = request.getRequestDispatcher("/qin.jsp");
			p.forward(request, response);
			// response.sendRedirect("/qin.jsp");

		}
		else if (action.equals("delete")) {
			// 删除
			Handle handle = new Handle();
			handle.voDelete(Integer.parseInt(request.getParameter("id")));
			request.setAttribute("name", handle.voSelect());
			RequestDispatcher p = request.getRequestDispatcher("/qin.jsp");
			p.forward(request, response);
		} else if (action.equals("update")) {
			// 改
			// 返回要更改的值传到显示层
			Handle handle = new Handle();
			IdentifyVo iv = handle.selectOne(Integer.parseInt(request.getParameter("id")));
			request.setAttribute("iv_name", iv);
			RequestDispatcher rd = request.getRequestDispatcher("/modify.jsp");
			rd.forward(request, response);
		}else if (action.equals("up")) {
			// 取得显示层更改后传进来的值并封装到vo里去
			Handle handle = new Handle();
			 IdentifyVo iv=new IdentifyVo();
			iv.setId(Integer.parseInt(request.getParameter("text_id")));
			iv.setName(request.getParameter("text_name_modify"));
			if(handle.voModify(iv)){
				System.out.print("ok");
			}
			
			
		}

		} 

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

	public void init() throws ServletException {
	}

}