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package com.sky.utils;import com.alibaba.fastjson.JSONObject;
import org.apache.http.NameValuePair;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;import java.io.IOException;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;/*** Http工具类*/
public class HttpClientUtil {static final  int TIMEOUT_MSEC = 5 * 1000;/*** 发送GET方式请求* @param url* @param paramMap* @return*/public static String doGet(String url,Map<String,String> paramMap){// 创建Httpclient对象CloseableHttpClient httpClient = HttpClients.createDefault();String result = "";CloseableHttpResponse response = null;try{URIBuilder builder = new URIBuilder(url);if(paramMap != null){for (String key : paramMap.keySet()) {builder.addParameter(key,paramMap.get(key));}}URI uri = builder.build();//创建GET请求HttpGet httpGet = new HttpGet(uri);//发送请求response = httpClient.execute(httpGet);//判断响应状态if(response.getStatusLine().getStatusCode() == 200){result = EntityUtils.toString(response.getEntity(),"UTF-8");}}catch (Exception e){e.printStackTrace();}finally {try {response.close();httpClient.close();} catch (IOException e) {e.printStackTrace();}}return result;}/*** 发送POST方式请求* @param url* @param paramMap* @return* @throws IOException*/public static String doPost(String url, Map<String, String> paramMap) throws IOException {// 创建Httpclient对象CloseableHttpClient httpClient = HttpClients.createDefault();CloseableHttpResponse response = null;String resultString = "";try {// 创建Http Post请求HttpPost httpPost = new HttpPost(url);// 创建参数列表if (paramMap != null) {List<NameValuePair> paramList = new ArrayList();for (Map.Entry<String, String> param : paramMap.entrySet()) {paramList.add(new BasicNameValuePair(param.getKey(), param.getValue()));}// 模拟表单UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList);httpPost.setEntity(entity);}httpPost.setConfig(builderRequestConfig());// 执行http请求response = httpClient.execute(httpPost);resultString = EntityUtils.toString(response.getEntity(), "UTF-8");} catch (Exception e) {throw e;} finally {try {response.close();} catch (IOException e) {e.printStackTrace();}}return resultString;}/*** 发送POST方式请求* @param url* @param paramMap* @return* @throws IOException*/public static String doPost4Json(String url, Map<String, String> paramMap) throws IOException {// 创建Httpclient对象CloseableHttpClient httpClient = HttpClients.createDefault();CloseableHttpResponse response = null;String resultString = "";try {// 创建Http Post请求HttpPost httpPost = new HttpPost(url);if (paramMap != null) {//构造json格式数据JSONObject jsonObject = new JSONObject();for (Map.Entry<String, String> param : paramMap.entrySet()) {jsonObject.put(param.getKey(),param.getValue());}StringEntity entity = new StringEntity(jsonObject.toString(),"utf-8");//设置请求编码entity.setContentEncoding("utf-8");//设置数据类型entity.setContentType("application/json");httpPost.setEntity(entity);}httpPost.setConfig(builderRequestConfig());// 执行http请求response = httpClient.execute(httpPost);resultString = EntityUtils.toString(response.getEntity(), "UTF-8");} catch (Exception e) {throw e;} finally {try {response.close();} catch (IOException e) {e.printStackTrace();}}return resultString;}private static RequestConfig builderRequestConfig() {return RequestConfig.custom().setConnectTimeout(TIMEOUT_MSEC).setConnectionRequestTimeout(TIMEOUT_MSEC).setSocketTimeout(TIMEOUT_MSEC).build();}}

package com.sky.controller.user;import com.alibaba.fastjson.JSONObject;
import com.google.gson.JsonObject;
import com.sky.constant.JwtClaimsConstant;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;
import com.sky.properties.JwtProperties;
import com.sky.properties.WeChatProperties;
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.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.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;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 {@Autowiredprivate UserService userService;@Autowiredprivate JwtProperties jwtProperties;/*** 微信登录** @param userLoginDTO* @return*/@PostMapping("/login")@ApiOperation("微信登录")public Result login(@RequestBody UserLoginDTO userLoginDTO) {log.info("微信登录，code:{}", userLoginDTO.getCode());User user = userService.wxLogin(userLoginDTO);//产生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.impl;import com.alibaba.fastjson.JSONObject;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.Dish;
import com.sky.entity.DishFlavor;
import com.sky.entity.User;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.exception.LoginFailedException;
import com.sky.mapper.DishFlavorMapper;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.UserMapper;
import com.sky.properties.WeChatProperties;
import com.sky.result.PageResult;
import com.sky.service.DishService;
import com.sky.service.UserService;
import com.sky.utils.HttpClientUtil;
import com.sky.vo.DishVO;
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.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;import java.io.IOException;
import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.List;
import java.util.Map;@Service
public class UserServiceImpl implements UserService {private static final String WX_LOGIN_URL = "https://api.weixin.qq.com/sns/jscode2session";@Autowiredprivate WeChatProperties weChatProperties;@Autowiredprivate UserMapper userMapper;/*** 微信登录* @param userLoginDTO* @return*/@Overridepublic User wxLogin(UserLoginDTO userLoginDTO) {String openid = getOpenid(userLoginDTO.getCode());//3. 判断openid是否为空if (openid==null){throw new LoginFailedException(MessageConstant.LOGIN_FAILED);}//查询用户是否存在User user = userMapper.getByOpenid(openid);if (user==null){user = User.builder().openid(openid).createTime(LocalDateTime.now()).build();//查询到openid不存在,创建用户userMapper.insert(user);}return user;}private String getOpenid(String code) {//1. 调用微信接口服务 参数 appid secret js_code grant_type=authorization_codeMap<String, String>pramsMap = new HashMap<>();pramsMap.put("appid",weChatProperties.getAppid());pramsMap.put("secret",weChatProperties.getSecret());pramsMap.put("js_code",code);pramsMap.put("grant_type","authorization_code");String result = HttpClientUtil.doGet(WX_LOGIN_URL, pramsMap);//2. 解析微信接口返回openidJSONObject jsonObject = JSONObject.parseObject(result);String openid = jsonObject.getString("openid");return openid;}
}//    public User wxLogin(UserLoginDTO userLoginDTO) {
//        //1. 调用微信接口服务 参数 appid secret js_code grant_type=authorization_code
//        CloseableHttpClient httpClient = HttpClients.createDefault();
//        //构造字符串
//        StringBuilder property = new StringBuilder();
//        property.append("appid=").append(weChatProperties.getAppid())
//                .append("&secret=").append(weChatProperties.getSecret())
//                .append("&js_code=").append(userLoginDTO.getCode())
//                .append("&grant_type=authorization_code");
//
//        String url = WX_LOGIN_URL + "?" + property.toString();
//        HttpGet httpGet = new HttpGet(url);
//        //2.执行
//        CloseableHttpResponse response = null;
//        try {
//            response = httpClient.execute(httpGet);
//            int statusCode = response.getStatusLine().getStatusCode();
//            if (statusCode == 200) {
//                String result = EntityUtils.toString(response.getEntity(), "UTF-8");
//                System.out.println(result);
//                JSONObject jsonObject = JSONObject.parseObject(result);
//                String openid = jsonObject.getString("openid");
//                if(openid==null){
//                    throw new LoginFailedException(MessageConstant.LOGIN_FAILED);
//                }
//                //查询用户是否存在
//                User user = userMapper.getByOpenid(openid);
//                if (user == null) {
//                    user = User.builder()
//                            .openid(openid)
//                            .createTime(LocalDateTime.now())
//                            .build();
//                    //查询到openid不存在,创建用户
//                    userMapper.insert(user);
//                }
//                return user;
//
//            }
//        } catch (IOException e) {
//            throw new RuntimeException(e);
//        }finally {
//            try {
//                response.close();
//                httpClient.close();
//            } catch (Exception e) {
//                throw new RuntimeException(e);
//            }
//            }
//        return null;
//        }
//
//    }
//}