package com.demo.controller;
import com.demo.service.UserService;
import com.demo.util.Util;
import com.demo.vo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.imageio.ImageIO;
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 java.awt.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;
@Controller
public class AuthController extends HttpServlet {
@Autowired
private UserService userService;
@RequestMapping("authLogin")
public void login(HttpServletResponse response, HttpServletRequest request) throws IOException, ServletException {
String username = Util.decode(request, "username");
String password = Util.decode(request, "password");
String validationCode = Util.decode(request, "validationCode");
if (validationCode != null && !validationCode.equals(request.getSession().getAttribute("validationCode"))) {//验证码不通过
request.getSession().setAttribute("alert_msg", "错误:验证码不正确!");
request.getRequestDispatcher("login.jsp").forward(request, response);
return;
}
Map<String, Object> params = new HashMap();
params.put("searchColumn", "username");//使用`username`字段进行模糊查询
params.put("keyword", username);
List<User> list = (List<User>) userService.list(params).get("list");
for (User user : list) {
if (user.getUsername().equals(username) && user.getPassword().equals(password)) {//找到这个管理员了
request.getSession().setAttribute("loginUser", user);
request.getRequestDispatcher("user_list.jsp").forward(request, response);
return;
}
}
request.getSession().setAttribute("alert_msg", "错误:用户名或密码错误!");
request.getRequestDispatcher("login.jsp").forward(request, response);
}
@RequestMapping("authRegister")
public void register(HttpServletResponse response, HttpServletRequest request) throws IOException, ServletException {
String username = Util.decode(request, "username");
String password = Util.decode(request, "password");
System.out.println("username=" + username);
System.out.println("password=" + password);
Map<String, Object> params = new HashMap();
params.put("searchColumn", "username");//使用`username`字段进行模糊查询
params.put("keyword", username);
params.put("startIndex", 0);
params.put("pageSize", Long.MAX_VALUE);
List<User> list = (List<User>) userService.list(params).get("list");
for (User user : list) {
if (user.getUsername().equals(username) /*&& user.getPassword().equals(password)*/) {//说明该用户名已存在,必须换个用户名才能注册
request.getSession().setAttribute("alert_msg", "错误:用户名已存在!");
request.getRequestDispatcher("register.jsp").forward(request, response);
return;
}
}
User vo = new User();
vo.setUsername(username);
vo.setPassword(password);
//vo.setUserType("普通用户");//需要设置一个默认值
userService.insert(vo);
request.getSession().setAttribute("alert_msg", "注册成功!用户名:[" + username + "]");
request.getRequestDispatcher("login.jsp").forward(request, response);
}
@RequestMapping("authLogout")
public void logout(HttpServletResponse response, HttpServletRequest request) throws IOException {
HttpSession session = request.getSession();
User user = (User) session.getAttribute("loginUser");
if (user != null) {
session.removeAttribute("loginUser");
}
response.sendRedirect("login.jsp");
}
@RequestMapping("authValidationCode")
public void validationCode(HttpServletResponse response, HttpServletRequest request) throws IOException {
String codeChars = "0123456789";// 图形验证码的字符集合,系统将随机从这个字符串中选择一些字符作为验证码
// 获得验证码集合的长度
int charsLength = codeChars.length();
// 下面三条记录是关闭客户端浏览器的缓冲区
// 这三条语句都可以关闭浏览器的缓冲区,但是由于浏览器的版本不同,对这三条语句的支持也不同
// 因此,为了保险起见,建议同时使用这三条语句来关闭浏览器的缓冲区
response.setHeader("ragma", "No-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);
// 设置图形验证码的长和宽(图形的大小)
int width = 90, height = 20;
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics g = image.getGraphics();// 获得用于输出文字的Graphics对象
Random random = new Random();
g.setColor(getRandomColor(180, 250));// 随机设置要填充的颜色
g.fillRect(0, 0, width, height);// 填充图形背景
// 设置初始字体
g.setFont(new Font("Times New Roman", Font.ITALIC, height));
g.setColor(getRandomColor(120, 180));// 随机设置字体颜色
// 用于保存最后随机生成的验证码
StringBuilder validationCode = new StringBuilder();
// 验证码的随机字体
String[] fontNames = {"Times New Roman", "Book antiqua", "Arial"};
for (int i = 0; i < 4; i++) {
// 随机设置当前验证码的字符的字体
g.setFont(new Font(fontNames[random.nextInt(3)], Font.ITALIC, height));
// 随机获得当前验证码的字符
char codeChar = codeChars.charAt(random.nextInt(charsLength));
validationCode.append(codeChar);
// 随机设置当前验证码字符的颜色
g.setColor(getRandomColor(10, 100));
// 在图形上输出验证码字符,x和y都是随机生成的
g.drawString(String.valueOf(codeChar), 16 * i + random.nextInt(7), height - random.nextInt(6));
}
HttpSession session = request.getSession();
session.setMaxInactiveInterval(5 * 60);
// 将验证码保存在session对象中,key为validation_code
session.setAttribute("validationCode", validationCode.toString());
g.dispose();// 关闭Graphics对象
OutputStream os = response.getOutputStream();
ImageIO.write(image, "JPEG", os);// 以JPEG格式向客户端发送图形验证码
}
@RequestMapping("authResetPassword")
public void resetPassword(HttpServletResponse response, HttpServletRequest request) throws IOException, ServletException {
String msg;
User loginUser = (User) request.getSession().getAttribute("loginUser");
String oldPassword = Util.decode(request, "oldPassword");
if (!loginUser.getPassword().equals(oldPassword)) {
msg = "原密码错误!";
} else {
String newPassword = Util.decode(request, "newPassword");
loginUser.setPassword(newPassword);
this.userService.update(loginUser);
msg = "修改成功!";
}
request.getSession().setAttribute("alert_msg", msg);
request.getRequestDispatcher("reset_password.jsp").forward(request, response);
}
// 返回一个随机颜色(Color对象)
private Co
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2023-01-02
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