// 控制层
////////////////////////////////////////////////////////////////////
// _ooOoo_ //
// o8888888o //
// 88" . "88 //
// (| ^_^ |) //
// O\ = /O //
// ____/`---'\____ //
// .' \\| |// `. //
// / \\||| : |||// \ //
// / _||||| -:- |||||- \ //
// | | \\\ - /// | | //
// | \_| ''\---/'' | | //
// \ .-\__ `-` ___/-. / //
// ___`. .' /--.--\ `. . ___ //
// ."" '< `.___\_<|>_/___.' >'"". //
// | | : `- \`.;`\ _ /`;.`/ - ` : | | //
// \ \ `-. \_ __\ /__ _/ .-` / / //
// ========`-.____`-.___\_____/___.-`____.-'======== //
// `=---=' //
// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ //
// 佛祖保佑 永无BUG 永不修改 //
////////////////////////////////////////////////////////////////////
package cn.com.fesco.web;
import cn.com.fesco.bean.Duser;
import cn.com.fesco.server.ResultBean;
import cn.com.fesco.service.DuserService;
import cn.com.fesco.service.impl.DuserServiceImpl;
import cn.com.fesco.utils.JsonUtils;
import cn.com.fesco.utils.Md5;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.annotation.*;
import java.io.IOException;
import java.lang.reflect.Method;
import java.sql.SQLException;
import java.util.List;
@WebServlet(name = "DuserServlet", value = "/DuserServlet")
public class DuserServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// GET 请求转发到 doPost 处理
doPost(request, response);
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 设置获取参数的字符集
request.setCharacterEncoding("utf-8");
// 获取请求地址中的 action 的值
String actionAddress = request.getParameter("action");
System.out.println(actionAddress+"ac");
try {
// 获取当前类实例
Class cls = this.getClass();
// 根据方法名获取方法
Method method = cls.getDeclaredMethod(actionAddress, HttpServletRequest.class, HttpServletResponse.class);
// 调用指定方法
method.invoke(this, request, response);
} catch (Exception e) {
e.printStackTrace();
}
}
// 注册方法
protected void register(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 获取参数
String name = request.getParameter("username");
String pwd = request.getParameter("pwd1");
// pwd = Md5.encrypt(pwd);
String email = request.getParameter("email");
// 创建 Duser 对象并用获取的参数实例化
Duser duser = new Duser(name, pwd, email);
// 创建服务层接口对象并用服务层接口实现类,进行实例化
DuserService duserService = new DuserServiceImpl();
// 对数据库执行异常处理
try {
// 定义一个变量用于接收返回值
int i = duserService.addDuser(duser);
// 处理接口
if (i == 1) {
// 重定向到提示页
response.sendRedirect("success.html");
} else {
response.sendRedirect("error.html");
}
} catch (SQLException e) {
e.printStackTrace();
}
}
// 登录方法
protected void login(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 获取 form 表单里的值
String name = request.getParameter("username");
String pwd = request.getParameter("userpwd");
// pwd = Md5.encrypt(pwd);
try {
DuserService duserService = new DuserServiceImpl();
Duser duser = duserService.findByNameAndPwd(name, pwd);
if (duser != null) {
response.sendRedirect("HomePage.html");
} else {
response.sendRedirect("error.html");
}
} catch (SQLException e) {
e.printStackTrace();
}
}
//查询方法
protected void findAll(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println("打点,看是否执行");
//1.创建服务器管理类的对象并实例化
ResultBean resultBean = new ResultBean(true);
//2.创建服务层接口对象并实例化
DuserService duserService = new DuserServiceImpl();
//对服务层方法进行调用
try{
//4.定义一个集合,并接受返回的结果集
List<Duser> dusers = duserService.findAll();
//5.将返回的结果集装入到服务器管理类中
resultBean.setData(dusers);
}catch (SQLException e){
e.printStackTrace();
//6.如果出现异常,给服务器管理类一个错误的信息
resultBean.setFlag(false);
resultBean.setErrorMsg("获取联系人失败");
}
//7.将最后结果,输送到前端
JsonUtils.printResult(response,resultBean);
}
protected void delete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//1.创建服务器管理类的对象并实例化
System.out.println("是否删除方法");
ResultBean resultBean = new ResultBean(true);
//2.创建服务层接口对象并实例化
DuserService duserService = new DuserServiceImpl();
//3.
Integer id =Integer.valueOf(request.getParameter("id"));
//System.out.println(id+"----------");
//4.
try{
duserService.deleteByid(id);
}catch (SQLException e){
e.printStackTrace();
//6.如果出现异常,给服务器管理类一个错误的信息
resultBean.setFlag(false);
resultBean.setErrorMsg("删除失败");
}
//将最后结果,输送到前端
JsonUtils.printResult(response,resultBean);
}
//用于根据id查询
protected void findByid(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//1.创建服务器管理类的对象并实例化
// System.out.println("是否删除方法");
ResultBean resultBean = new ResultBean(true);
//2.创建服务层接口对象并实例化
DuserService duserService = new DuserServiceImpl();
//3.
Integer id =Integer.valueOf(request.getParameter("id"));
//进行操作
try{
//4.创建一duser对象接受返回值
Duser duser = duserService.findById(id);
//5.
resultBean.setData(duser);
}catch (SQLException e){
e.printStackTrace();
//6.
resultBean.setF
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