3.12 实现用户信息在页面显示

修改 foodie-dev-api 模块下的 PassportController 类，将查询到的部分内容设置为空，不返回给前端显示，并将返回的内容放到 cookie 中

package com.imooc.controller;
import com.imooc.pojo.Users;
import com.imooc.pojo.bo.UserBO;
import com.imooc.service.UserService;
import com.imooc.utils.CookieUtils;
import com.imooc.utils.IMOOCJSONResult;
import com.imooc.utils.JsonUtils;
import com.imooc.utils.MD5Utils;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
 * @author 92578
 * @since 1.0
 */
@Api(value = "注册登录", tags = {"用于注册登录的相关接口"})
@RestController
@RequestMapping("passport")
public class PassportController {
    @Autowired
    private UserService userService;
    @ApiOperation(value = "用户名是否存在", notes = "用户名是否存在", httpMethod = "GET")
    @GetMapping("/usernameIsExist")
    public IMOOCJSONResult usernameIsExist(@RequestParam String username) {
        // 1. 判断用户名不能为空
        if (StringUtils.isBlank(username)) {
            return IMOOCJSONResult.errorMsg("用户名不能为空");
        }
        // 2. 查找注册的用户名是否存在
        boolean isExist = userService.queryUsernameIsExist(username);
        if (isExist) {
            return IMOOCJSONResult.errorMsg("用户名已经存在");
        }
        // 3. 请求成功，用户名没有重复
        return IMOOCJSONResult.ok();
    }
    @ApiOperation(value = "用户注册", notes = "用户注册", httpMethod = "POST")
    @PostMapping("/regist")
    public IMOOCJSONResult regist(@RequestBody UserBO userBO,
                                  HttpServletRequest request,
                                  HttpServletResponse response) {
        String username = userBO.getUsername();
        String password = userBO.getPassword();
        String confirmPwd = userBO.getConfirmPassword();
        // 0. 判断用户名和密码不为空
        if (StringUtils.isBlank(username) || StringUtils.isBlank(password) || StringUtils.isBlank(confirmPwd)) {
            return IMOOCJSONResult.errorMsg("用户名或密码不能为空");
        }
        // 1. 查询用户名是否存在
        boolean isExist = userService.queryUsernameIsExist(username);
        if (isExist) {
            return IMOOCJSONResult.errorMsg("用户名已经存在");
        }
        // 2. 密码长度不能少于 6 位
        if (password.length() < 6) {
            return IMOOCJSONResult.errorMsg("密码长度不能少于6");
        }
        // 3. 判断两次密码是否一致
        if (!password.equals(confirmPwd)) {
            return IMOOCJSONResult.errorMsg("两次密码输入不一致");
        }
        // 4. 实现注册
        Users userResult = userService.createUser(userBO);
        userResult = setNullProperty(userResult);
        CookieUtils.setCookie(request, response, "user", JsonUtils.objectToJson(userResult), true);
        return IMOOCJSONResult.ok();
    }
    @ApiOperation(value = "用户登录", notes = "用户登录", httpMethod = "POST")
    @PostMapping("/login")
    public IMOOCJSONResult login(@RequestBody UserBO userBO,
                                 HttpServletRequest request,
                                 HttpServletResponse response) throws Exception {
        String username = userBO.getUsername();
        String password = userBO.getPassword();
        // 0. 判断用户名和密码不为空
        if (StringUtils.isBlank(username) || StringUtils.isBlank(password)) {
            return IMOOCJSONResult.errorMsg("用户名或密码不能为空");
        }
        // 1. 实现登录
        Users userResult = userService.queryUserForLogin(username, MD5Utils.getMD5Str(password));
        if (userResult == null) {
            return IMOOCJSONResult.errorMsg("用户名或密码不正确");
        }
        userResult = setNullProperty(userResult);
        CookieUtils.setCookie(request, response, "user", JsonUtils.objectToJson(userResult), true);
        return IMOOCJSONResult.ok(userResult);
    }
    private Users setNullProperty(Users userResult) {
        userResult.setPassword(null);
        userResult.setMobile(null);
        userResult.setEmail(null);
        userResult.setCreatedTime(null);
        userResult.setUpdatedTime(null);
        userResult.setBirthday(null);
        return userResult;
    }
}

启动项目，打开浏览器，访问 http://localhost:8080/foodie-shop/login.html 输入用户名“imooc”，密码“123123”进行登录

登录成功后显示用户名、昵称和头像