使用Servlet写的增删改查项目

大三实训课所写项目，基于Servlet编写，有最基础的增删改查功能，以及登录验证，验证码，cookies等，适合新手练习学习参考，代码简单易懂

package dao;

import user.employee;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class addemployee {
    public boolean add（employee user） throws SQLException {
        connect con =new connect（）;
        Statement s1=con.getcon（）;
        if（user.getDepart（）.equals（“技术部“））{
            user.setDepart_id（2）;
        }else if（user.getDepart（）.equals（“开发部“））{
            user.setDepart_id（3）;
        }else if（user.getDepart（）.equals（“销售部“））{
            user.setDepart_id（1）;
        }
        if（user.getPosition（）.equals（“设计师“））{
            user.setPos_id（1）;
        }else if（user.getPosition（）.equals（“程序员“））{
            user.setPos_id（2）;
        }else if（user.getPosition（）.equals（“销售员“））{
            user.setPos_id（3）;
        }
        String str=“INSERT INTO talents （namedepart_idpos_idsexualbirthdayedu_backgroundunemploy_datebody_heightbody_weightstatus）  VALUES （‘“+user.getName（）+“‘‘“+user.getDepart_id（）+“‘‘“+user.getPos_id（）+“‘‘“+user.getSexual（）+“‘‘“+user.getBirthday（）+“‘‘“+user.getEdu_background（）+“‘‘“+user.getUnemploy_date（）+“‘‘“+user.getBody_height（）+“‘‘“+user.getBody_weight（）+“‘‘“+user.getstatus（）+“‘）“;

            int b1=s1.executeUpdate（str）;
            if（b1>0）{
                return true;
            }else{
                return false;
            }
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件        489  2018-06-12 09:56  hr\.idea\artifacts\hr_war_exploded.xml

     文件        279  2018-06-12 09:56  hr\.idea\misc.xml

     文件        244  2018-06-12 09:56  hr\.idea\modules.xml

     文件       8792  2018-06-12 09:56  hr\.idea\uiDesigner.xml

     文件      72086  2018-06-15 11:53  hr\.idea\workspace.xml

     文件       1275  2018-06-12 09:55  hr\hr.iml

     文件       7869  2018-06-13 21:43  hr\out\artifacts\hr_war_exploded\assets\img\backtop.png

     文件      30720  2018-06-15 10:42  hr\out\artifacts\hr_war_exploded\chart.jsp

     文件      44417  2018-06-15 08:46  hr\out\artifacts\hr_war_exploded\department.jsp

     文件      40513  2018-06-15 08:08  hr\out\artifacts\hr_war_exploded\department_form.jsp

     文件      45336  2018-06-15 08:46  hr\out\artifacts\hr_war_exploded\employee_tranform.jsp

     文件      46577  2018-06-15 08:12  hr\out\artifacts\hr_war_exploded\form.jsp

     文件       1884  2018-06-13 21:43  hr\out\artifacts\hr_war_exploded\index.jsp

     文件      26413  2018-06-14 21:14  hr\out\artifacts\hr_war_exploded\Main.jsp

     文件      46365  2018-06-15 08:46  hr\out\artifacts\hr_war_exploded\person.jsp

     文件      43546  2018-06-15 08:46  hr\out\artifacts\hr_war_exploded\positions.jsp

     文件      39826  2018-06-15 08:12  hr\out\artifacts\hr_war_exploded\positions_form.jsp

     文件     197513  2018-06-15 02:49  hr\out\artifacts\hr_war_exploded\static\css\bootstrap.css

     文件       2025  2018-06-13 21:43  hr\out\artifacts\hr_war_exploded\static\css\component.css

     文件        136  2018-06-13 21:43  hr\out\artifacts\hr_war_exploded\static\css\custom-landing.css

     文件        136  2018-06-13 21:43  hr\out\artifacts\hr_war_exploded\static\css\custom.css

     文件        587  2018-06-13 21:43  hr\out\artifacts\hr_war_exploded\static\css\demo.css

     文件      72418  2018-06-13 21:43  hr\out\artifacts\hr_war_exploded\static\css\icons.css

     文件      55838  2018-06-13 21:43  hr\out\artifacts\hr_war_exploded\static\css\landing.css

     文件      73696  2018-06-13 21:43  hr\out\artifacts\hr_war_exploded\static\css\main.css

     文件       1825  2018-06-13 21:43  hr\out\artifacts\hr_war_exploded\static\css\normalize.css

     文件     188319  2018-06-13 21:43  hr\out\artifacts\hr_war_exploded\static\css\plugins.css

     文件       1738  2018-06-13 21:43  hr\out\artifacts\hr_war_exploded\static\css\sprflat-theme\images\animated-overlay.gif

     文件        498  2018-06-13 21:43  hr\out\artifacts\hr_war_exploded\static\css\sprflat-theme\images\handle.png

     文件        212  2018-06-13 21:43  hr\out\artifacts\hr_war_exploded\static\css\sprflat-theme\images\ui-bg_flat_0_aaaaaa_40x100.png

............此处省略2341个文件信息