src/com/servlet/yonghuServlet.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.util.*;
import java.util.List;
import java.sql.ResultSet;

public class yonghuServlet 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")){//用户添加
			insertM(request, response);
		}else if(method.equals("list")){//用户列表
			ListM(request, response);
		}else if(method.equals("delete")){//用户删除
			deleteM(request, response);
		}else if(method.equals("modifyindex")){//用户修改页面
			modifyIndex(request, response);
		}
		else if(method.equals("modify")){//用户修改
			modifyM(request, response);
		}else if(method.equals("detail")){//用户详细信息
			detailM(request, response);
		}else if(method.equals("Plist")){//用户列表信息
			PListM(request, response);
		}
	}
	private void insertM(HttpServletRequest request, HttpServletResponse response){//用户添加
		DBO db=new DBO();//初始化数据链接基础类
		String sql="";//sql语句初始化
			String keyid =(String)request.getParameter("keyid");//用户表主键
String yhm=(String)request.getParameter("yhm");//用户名
String mm=(String)request.getParameter("mm");//密码
String xm=(String)request.getParameter("xm");//姓名
String qx=(String)request.getParameter("qx");//权限
String sj=(String)request.getParameter("sj");//时间

		response.setCharacterEncoding("gb2312");
 		sql="insert into yonghu(yhm,mm,xm,qx,sj) values('"+yhm+"','"+mm+"','"+xm+"','"+qx+"','"+sj+"')";
;//用户SQL 语句
		int row=1;
		try {
			row=db.update(sql);//执行sql语句 insert语句
			if(row==1){
			request.setAttribute("flag", "操作成功"); 
			}else{
			request.setAttribute("flag", "操作失败"); 
			}