src/com/tjzhic/dao/impl/AdminuserDaoImpl.java

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package com.tjzhic.dao.impl;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;

import com.tjzhic.dao.AdminuserDao;
import com.tjzhic.db.ConnectionFactory;
import com.tjzhic.entity.Adminuser;


public class AdminuserDaoImpl implements AdminuserDao{

  //添加管理员
  public int add(Adminuser adminuser) {
    int rows = 0;
    Connection con = ConnectionFactory.getConnection();
    PreparedStatement pre = null;
    try {
        String sql = "insert into adminuser(adminname,adminpass,admingroup) values(?,?,?)";
        pre = con.prepareStatement(sql);
        pre.setString(1, adminuser.getAdminname());
        pre.setString(2, adminuser.getAdminpass());
        pre.setString(3, adminuser.getAdmingroup());
        rows = pre.executeUpdate();
    } catch (SQLException e) {
        e.printStackTrace();
    } finally {
        try{
            if (pre!=null)
                pre.close();
            if (con != null)
                con.close();
        }catch (SQLException e) {
            e.printStackTrace();
        }
    }
    return rows;
  }

  //按用户名删除管理员
  public int deleteByAdminname(String adminname) {
    int rows = 0;
    Connection con = ConnectionFactory.getConnection();
    PreparedStatement pre = null;
    try {
        String sql = "delete from adminuser where adminname=?";
        pre = con.prepareStatement(sql);
        pre.setString(1, adminname);
        rows = pre.executeUpdate();
    } catch (SQLException e) {
        e.printStackTrace();
    } finally {
        try{
            if (pre!=null)
                pre.close();
            if (con != null)
                con.close();