package com.sky.test;

import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;

@SpringBootTest
public class HttpClientTest {

    /**
     * 测试通过httpclient发送GET方式的请求
     */
    @Test
    public void testGET() throws Exception{
        //创建httpclient对象
        CloseableHttpClient httpClient = HttpClients.createDefault();

        //创建请求对象
        HttpGet httpGet = new HttpGet("http://localhost:8080/user/shop/status");

        //发送请求，接受响应结果
        CloseableHttpResponse response = httpClient.execute(httpGet);

        //获取服务端返回的状态码
        int statusCode = response.getStatusLine().getStatusCode();
        System.out.println("服务端返回的状态码为：" + statusCode);

        HttpEntity entity = response.getEntity();
        String body = EntityUtils.toString(entity);
        System.out.println("服务端返回的数据为：" + body);

        //关闭资源
        response.close();
        httpClient.close();
    }
}

/**
    * 测试通过httpclient发送POST方式的请求
    */
   @Test
   public void testPOST() throws Exception{
       // 创建httpclient对象
       CloseableHttpClient httpClient = HttpClients.createDefault();

       //创建请求对象
       HttpPost httpPost = new HttpPost("http://localhost:8080/admin/employee/login");

       JSONObject jsonObject = new JSONObject();
       jsonObject.put("username","admin");
       jsonObject.put("password","123456");

       StringEntity entity = new StringEntity(jsonObject.toString());
       //指定请求编码方式
       entity.setContentEncoding("utf-8");
       //数据格式
       entity.setContentType("application/json");
       httpPost.setEntity(entity);

       //发送请求
       CloseableHttpResponse response = httpClient.execute(httpPost);

       //解析返回结果
       int statusCode = response.getStatusLine().getStatusCode();
       System.out.println("响应码为：" + statusCode);

       HttpEntity entity1 = response.getEntity();
       String body = EntityUtils.toString(entity1);
       System.out.println("响应数据为：" + body);

       //关闭资源
       response.close();
       httpClient.close();
   }

package com.sky.dto;

import lombok.Data;

import java.io.Serializable;

/**
 * C端用户登录
 */
@Data
public class UserLoginDTO implements Serializable {

    private String code;

}

package com.sky.vo;

import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.io.Serializable;

@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
public class UserLoginVO implements Serializable {

    private Long id;
    private String openid;
    private String token;

}

package com.sky.controller.user;

import com.sky.constant.JwtClaimsConstant;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;
import com.sky.properties.JwtProperties;
import com.sky.result.Result;
import com.sky.service.UserService;
import com.sky.utils.JwtUtil;
import com.sky.vo.UserLoginVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.HashMap;
import java.util.Map;

@RestController
@RequestMapping("/user/user")
@Api(tags = "C端用户相关接口")
@Slf4j
public class UserController {

    @Autowired
    private UserService userService;
    @Autowired
    private JwtProperties jwtProperties;

    /**
     * 微信登录
     * @param userLoginDTO
     * @return
     */
    @PostMapping("/login")
    @ApiOperation("微信登录")
    public Result<UserLoginVO> login(@RequestBody UserLoginDTO userLoginDTO){
        log.info("微信用户登录：{}",userLoginDTO.getCode());

        //微信登录
        User user = userService.wxLogin(userLoginDTO);//后绪步骤实现

        //为微信用户生成jwt令牌
        Map<String, Object> claims = new HashMap<>();
        claims.put(JwtClaimsConstant.USER_ID,user.getId());
        String token = JwtUtil.createJWT(jwtProperties.getUserSecretKey(), jwtProperties.getUserTtl(), claims);

        UserLoginVO userLoginVO = UserLoginVO.builder()
                .id(user.getId())
                .openid(user.getOpenid())
                .token(token)
                .build();
        return Result.success(userLoginVO);
    }
}

package com.sky.service;

import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;

public interface UserService {

    /**
     * 微信登录
     * @param userLoginDTO
     * @return
     */
    User wxLogin(UserLoginDTO userLoginDTO);
}

package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.sky.constant.MessageConstant;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;
import com.sky.exception.LoginFailedException;
import com.sky.mapper.UserMapper;
import com.sky.properties.WeChatProperties;
import com.sky.service.UserService;
import com.sky.utils.HttpClientUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.Map;

@Service
@Slf4j
public class UserServiceImpl implements UserService {

    //微信服务接口地址
    public static final String WX_LOGIN = "https://api.weixin.qq.com/sns/jscode2session";

    @Autowired
    private WeChatProperties weChatProperties;
    @Autowired
    private UserMapper userMapper;

    /**
     * 微信登录
     * @param userLoginDTO
     * @return
     */
    public User wxLogin(UserLoginDTO userLoginDTO) {
        String openid = getOpenid(userLoginDTO.getCode());

        //判断openid是否为空，如果为空表示登录失败，抛出业务异常
        if(openid == null){
            throw new LoginFailedException(MessageConstant.LOGIN_FAILED);
        }

        //判断当前用户是否为新用户
        User user = userMapper.getByOpenid(openid);

        //如果是新用户，自动完成注册
        if(user == null){
            user = User.builder()
                    .openid(openid)
                    .createTime(LocalDateTime.now())
                    .build();
            userMapper.insert(user);//后绪步骤实现
        }

        //返回这个用户对象
        return user;
    }

    /**
     * 调用微信接口服务，获取微信用户的openid
     * @param code
     * @return
     */
    private String getOpenid(String code){
        //调用微信接口服务，获得当前微信用户的openid
        Map<String, String> map = new HashMap<>();
        map.put("appid",weChatProperties.getAppid());
        map.put("secret",weChatProperties.getSecret());
        map.put("js_code",code);
        map.put("grant_type","authorization_code");
        String json = HttpClientUtil.doGet(WX_LOGIN, map);

        JSONObject jsonObject = JSON.parseObject(json);
        String openid = jsonObject.getString("openid");
        return openid;
    }
}

package com.sky.mapper;

import com.sky.entity.User;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

@Mapper
public interface UserMapper {

    /**
     * 根据openid查询用户
     * @param openid
     * @return
     */
    @Select("select * from user where openid = #{openid}")
    User getByOpenid(String openid);

    /**
     * 插入数据
     * @param user
     */
    void insert(User user);
}

package com.sky.interceptor;

import com.sky.constant.JwtClaimsConstant;
import com.sky.context.BaseContext;
import com.sky.properties.JwtProperties;
import com.sky.utils.JwtUtil;
import io.jsonwebtoken.Claims;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.method.HandlerMethod;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * jwt令牌校验的拦截器
 */
@Component
@Slf4j
public class JwtTokenUserInterceptor implements HandlerInterceptor {

    @Autowired
    private JwtProperties jwtProperties;

    /**
     * 校验jwt
     *
     * @param request
     * @param response
     * @param handler
     * @return
     * @throws Exception
     */
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //判断当前拦截到的是Controller的方法还是其他资源
        if (!(handler instanceof HandlerMethod)) {
            //当前拦截到的不是动态方法，直接放行
            return true;
        }

        //1、从请求头中获取令牌
        String token = request.getHeader(jwtProperties.getUserTokenName());

        //2、校验令牌
        try {
            log.info("jwt校验:{}", token);
            Claims claims = JwtUtil.parseJWT(jwtProperties.getUserSecretKey(), token);
            Long userId = Long.valueOf(claims.get(JwtClaimsConstant.USER_ID).toString());
            log.info("当前用户的id：", userId);
            BaseContext.setCurrentId(userId);
            //3、通过，放行
            return true;
        } catch (Exception ex) {
            //4、不通过，响应401状态码
            response.setStatus(401);
            return false;
        }
    }
}

@Autowired
   private JwtTokenUserInterceptor jwtTokenUserInterceptor;
/**
    * 注册自定义拦截器
    * @param registry
    */
   protected void addInterceptors(InterceptorRegistry registry) {
       log.info("开始注册自定义拦截器...");
       //.........

       registry.addInterceptor(jwtTokenUserInterceptor)
               .addPathPatterns("/user/**")
               .excludePathPatterns("/user/user/login")
               .excludePathPatterns("/user/shop/status");
   }

/**
    * 动态条件查询套餐
    * @param setmeal
    * @return
    */
   List<Setmeal> list(Setmeal setmeal);

   /**
    * 根据套餐id查询菜品选项
    * @param setmealId
    * @return
    */
   @Select("select sd.name, sd.copies, d.image, d.description " +
           "from setmeal_dish sd left join dish d on sd.dish_id = d.id " +
           "where sd.setmeal_id = #{setmealId}")
   List<DishItemVO> getDishItemBySetmealId(Long setmealId);

package com.sky.service;

import com.sky.dto.SetmealDTO;
import com.sky.dto.SetmealPageQueryDTO;
import com.sky.entity.Setmeal;
import com.sky.result.PageResult;
import com.sky.vo.DishItemVO;
import com.sky.vo.SetmealVO;
import java.util.List;

public interface SetmealService {

    /**
     * 条件查询
     * @param setmeal
     * @return
     */
    List<Setmeal> list(Setmeal setmeal);

    /**
     * 根据id查询菜品选项
     * @param id
     * @return
     */
    List<DishItemVO> getDishItemById(Long id);

}

package com.sky.service.impl;

import com.sky.entity.Setmeal;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.service.SetmealService;
import com.sky.vo.DishItemVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * 套餐业务实现
 */
@Service
@Slf4j
public class SetmealServiceImpl implements SetmealService {

    @Autowired
    private SetmealMapper setmealMapper;
    @Autowired
    private SetmealDishMapper setmealDishMapper;
    @Autowired
    private DishMapper dishMapper;

    /**
     * 条件查询
     * @param setmeal
     * @return
     */
    public List<Setmeal> list(Setmeal setmeal) {
        List<Setmeal> list = setmealMapper.list(setmeal);
        return list;
    }

    /**
     * 根据id查询菜品选项
     * @param id
     * @return
     */
    public List<DishItemVO> getDishItemById(Long id) {
        return setmealMapper.getDishItemBySetmealId(id);
    }
}

/**
    * 条件查询菜品和口味
    * @param dish
    * @return
    */
   List<DishVO> listWithFlavor(Dish dish);

/**
    * 条件查询菜品和口味
    * @param dish
    * @return
    */
   public List<DishVO> listWithFlavor(Dish dish) {
       List<Dish> dishList = dishMapper.list(dish);

       List<DishVO> dishVOList = new ArrayList<>();

       for (Dish d : dishList) {
           DishVO dishVO = new DishVO();
           BeanUtils.copyProperties(d,dishVO);

           //根据菜品id查询对应的口味
           List<DishFlavor> flavors = dishFlavorMapper.getByDishId(d.getId());

           dishVO.setFlavors(flavors);
           dishVOList.add(dishVO);
       }

       return dishVOList;
   }

package com.sky.controller.user;

import com.sky.constant.StatusConstant;
import com.sky.entity.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;

@RestController("userDishController")
@RequestMapping("/user/dish")
@Slf4j
@Api(tags = "C端-菜品浏览接口")
public class DishController {
    @Autowired
    private DishService dishService;

    /**
     * 根据分类id查询菜品
     *
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<DishVO>> list(Long categoryId) {
        Dish dish = new Dish();
        dish.setCategoryId(categoryId);
        dish.setStatus(StatusConstant.ENABLE);//查询起售中的菜品

        List<DishVO> list = dishService.listWithFlavor(dish);

        return Result.success(list);
    }

}

package com.sky.controller.user;

import com.sky.entity.Category;
import com.sky.result.Result;
import com.sky.service.CategoryService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;

@RestController("userCategoryController")
@RequestMapping("/user/category")
@Api(tags = "C端-分类接口")
public class CategoryController {

    @Autowired
    private CategoryService categoryService;

    /**
     * 查询分类
     * @param type
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("查询分类")
    public Result<List<Category>> list(Integer type) {
        List<Category> list = categoryService.list(type);
        return Result.success(list);
    }
}

package com.sky.controller.user;

import com.sky.constant.StatusConstant;
import com.sky.entity.Setmeal;
import com.sky.result.Result;
import com.sky.service.SetmealService;
import com.sky.vo.DishItemVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;

@RestController("userSetmealController")
@RequestMapping("/user/setmeal")
@Api(tags = "C端-套餐浏览接口")
public class SetmealController {
    @Autowired
    private SetmealService setmealService;

    /**
     * 条件查询
     *
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询套餐")
    public Result<List<Setmeal>> list(Long categoryId) {
        Setmeal setmeal = new Setmeal();
        setmeal.setCategoryId(categoryId);
        setmeal.setStatus(StatusConstant.ENABLE);

        List<Setmeal> list = setmealService.list(setmeal);
        return Result.success(list);
    }

    /**
     * 根据套餐id查询包含的菜品列表
     *
     * @param id
     * @return
     */
    @GetMapping("/dish/{id}")
    @ApiOperation("根据套餐id查询包含的菜品列表")
    public Result<List<DishItemVO>> dishList(@PathVariable("id") Long id) {
        List<DishItemVO> list = setmealService.getDishItemById(id);
        return Result.success(list);
    }
}