文章目录
- 前言
- 具体实现截图
- 论文参考
- 详细视频演示
- 为什么选择我
- 自己的网站
- 自己的小程序(小蔡coding)
- 有保障的售后
- 福利
- 代码参考
- 源码获取
前言
💗博主介绍:✌全网粉丝10W+,特邀作者、博客专家、新星计划导师、全栈领域优质创作者,博客之星、华为云/阿里云/等平台优质作者、专注于Java、小程序技术领域和毕业项目实战✌💗
具体实现截图
功能介绍:
一是后台管理人员使用自己的专属账号登录到系统中来管理各种功能,包括首页,网站公告,推荐美容项目,全部美食项目。
二是前台系统,用户登录成功可以对评价信息,管理员信息,网站用户信息,新闻公告信息,美容项目类
型信息,城市信息,美容院信息,美容项目信息,订单信息进行管理。
论文参考
详细视频演示
请联系我获取更详细的演示视频
代码参考
@IgnoreAuth
@PostMapping(value = "/login")
public R login(String username, String password, String captcha, HttpServletRequest request) {
UsersEntity user = userService.selectOne(new EntityWrapper<UsersEntity>().eq("username", username));
if(user==null || !user.getPassword().equals(password)) {
return R.error("账号或密码不正确");
}
String token = tokenService.generateToken(user.getId(),username, "users", user.getRole());
return R.ok().put("token", token);
}
@Override
public String generateToken(Long userid,String username, String tableName, String role) {
TokenEntity tokenEntity = this.selectOne(new EntityWrapper<TokenEntity>().eq("userid", userid).eq("role", role));
String token = CommonUtil.getRandomString(32);
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
cal.add(Calendar.HOUR_OF_DAY, 1);
if(tokenEntity!=null) {
tokenEntity.setToken(token);
tokenEntity.setExpiratedtime(cal.getTime());
this.updateById(tokenEntity);
} else {
this.insert(new TokenEntity(userid,username, tableName, role, token, cal.getTime()));
}
return token;
}
/**
* 权限(Token)验证
*/
@Component
public class AuthorizationInterceptor implements HandlerInterceptor {
public static final String LOGIN_TOKEN_KEY = "Token";
@Autowired
private TokenService tokenService;
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
//支持跨域请求
response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
response.setHeader("Access-Control-Max-Age", "3600");
response.setHeader("Access-Control-Allow-Credentials", "true");
response.setHeader("Access-Control-Allow-Headers", "x-requested-with,request-source,Token, Origin,imgType, Content-Type, cache-control,postman-token,Cookie, Accept,authorization");
response.setHeader("Access-Control-Allow-Origin", request.getHeader("Origin"));
// 跨域时会首先发送一个OPTIONS请求,这里我们给OPTIONS请求直接返回正常状态
if (request.getMethod().equals(RequestMethod.OPTIONS.name())) {
response.setStatus(HttpStatus.OK.value());
return false;
}
IgnoreAuth annotation;
if (handler instanceof HandlerMethod) {
annotation = ((HandlerMethod) handler).getMethodAnnotation(IgnoreAuth.class);
} else {
return true;
}
//从header中获取token
String token = request.getHeader(LOGIN_TOKEN_KEY);
/**
* 不需要验证权限的方法直接放过
*/
if(annotation!=null) {
return true;
}
TokenEntity tokenEntity = null;
if(StringUtils.isNotBlank(token)) {
tokenEntity = tokenService.getTokenEntity(token);
}
if(tokenEntity != null) {
request.getSession().setAttribute("userId", tokenEntity.getUserid());
request.getSession().setAttribute("role", tokenEntity.getRole());
request.getSession().setAttribute("tableName", tokenEntity.getTablename());
request.getSession().setAttribute("username", tokenEntity.getUsername());
return true;
}
PrintWriter writer = null;
response.setCharacterEncoding("UTF-8");
response.setContentType("application/json; charset=utf-8");
try {
writer = response.getWriter();
writer.print(JSONObject.toJSONString(R.error(401, "请先登录")));
} finally {
if(writer != null){
writer.close();
}
}
// throw new EIException("请先登录", 401);
return false;
}
}