src/com/servlet/zhongliangServlet.java

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package com.servlet;

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

import com.bean.zhongliang;
import com.dao.zhongliangDao;


import java.util.List;
import java.sql.ResultSet;

public class zhongliangServlet extends HttpServlet  {
	public void service(HttpServletRequest request, HttpServletResponse response)
	throws ServletException, IOException {
		request.setCharacterEncoding("gb2312");
		System.out.println("method"+request.getParameter("method"));
		String method=(String)request.getParameter("method");
		if(method.equals("insert")){//重量添加
			insertM(request, response);
		}else if(method.equals("list")){//重量列表
			ListM(request, response);
		}else if(method.equals("delete")){//重量删除
			deleteM(request, response);
		}else if(method.equals("modifyindex")){//重量修改页面
			modifyIndex(request, response);
		}
		else if(method.equals("modify")){//重量修改
			modifyM(request, response);
		}else if(method.equals("detail")){//重量详细信息
			detailM(request, response);
		}else if(method.equals("plist")){//重量列表信息
			PListM(request, response);
		}
	}
	private void insertM(HttpServletRequest request, HttpServletResponse response){//重量添加
		zhongliangDao dao=new zhongliangDao();
		zhongliang zhongliang=new zhongliang();
		zhongliang.setZlid((String)request.getParameter("keyid"));
zhongliang.setZl((String)request.getParameter("zl"));
zhongliang.setJg((String)request.getParameter("jg"));

	response.setCharacterEncoding("gb2312");
		try {
			dao.insert(zhongliang);
			request.setAttribute("flag", "操作成功"); 
			
			
			
			request.getRequestDispatcher("zhongliang/zhongliangadd.jsp").forward(request, response);
		} catch (Exception e) {
			e.printStackTrace();
		}
				
	}