backend_code/src/main/java/com/template/controller/WechatScanLoginController.java

package com.template.controller;

import com.alibaba.fastjson.JSONObject;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.github.pagehelper.util.StringUtil;
import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import com.template.annotation.PassToken;
import com.template.api.WechatScanLoginControllerAPI;
import com.template.common.constanst.Constanst;
import com.template.common.result.ResponseStatusEnum;
import com.template.common.utils.*;
import com.template.model.pojo.SmartUser;
import com.template.model.result.CommonResult;
import com.template.model.result.PageUtils;
import com.template.model.tongji.*;
import com.template.model.vo.LoginVO;
import com.template.model.weixin.AccessToken;
import com.template.model.weixin.HttpParame;
import com.template.model.weixin.WechatUserUnionID;
import com.template.services.SmartUserService;
import com.template.services.WechatScanLoginService;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.io.UnsupportedEncodingException;
import java.math.BigDecimal;
import java.net.URLEncoder;
import java.text.ParseException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Title: WechatScanLoginController
 * Description: 微信扫码登录controller
 * 
 * @author fengyong
 * @date 2018年9月7日
 */
@Controller
public class WechatScanLoginController implements WechatScanLoginControllerAPI {

	@Autowired
	private WechatScanLoginService wechatScanLoginService;
	@Autowired
	public SmartUserService smartUserService;

	/**
	 * Title: list
	 * Description: 重定向到微信扫码登录二维码页面
	 * 此处显示要微信要扫描的二维码
	 * 
	 * @param model
	 * @return
	 * @throws UnsupportedEncodingException
	 */
	@Override
	@PassToken
	public String login(Model model) throws UnsupportedEncodingException {
		Map<String, String> wechatLoginUrl = wechatScanLoginService.wechatLoginUrl();
		String url = wechatLoginUrl.get("url");
		System.out.println(url);
		return "redirect:" + url;
	}

	/**
	 * Title: callback
	 * Description: 回调地址处理
	 * 
	 * @param code
	 * @param state
	 * @return
	 * @return
	 */
	@Override
	@PassToken
	public String callback(String code, String state) throws UnsupportedEncodingException {
		System.out.println(code+"====="+state);
		if (code != null && state != null) {
			// 验证state为了用于防止跨站请求伪造攻击
			String decrypt = AesUtil.decrypt(AesUtil.parseHexStr2Byte(state), AesUtil.PASSWORD_SECRET_KEY, 16);
			if (!decrypt.equals(Constanst.PWD_MD5 + DateUtils.getYYYYMMdd())) {
				return "redirect:"+HttpParame.FRONT_URI+"/#/login?message=" + URLEncoder.encode("请勿非法进入", "UTF-8");
			}
			AccessToken access = wechatScanLoginService.getAccessToken(code);
			System.out.println("access:"+access);
			if (access != null) {
				String openid = access.getOpenid();
				System.out.println("openid: "+openid);
				SmartUser user = wechatScanLoginService.selectByOpenid(openid);
				if (user==null) {		/*不存在*/
					return "redirect:"+HttpParame.FRONT_URI+"/#/login?message=" + URLEncoder.encode("请绑定信息", "UTF-8");
				} else {
					String token = JWTUtil.getToken(user);
					return "redirect:"+HttpParame.FRONT_URI+"/#/wanzai/home?token=" + token;
				}
			}
		}
		return null;
	}

	/**
	 * Title: bindingUserMac2
	 * Description: 跳转到绑定用户系统帐号页面
	 * @return
	 */
	@Override
	@PassToken
	public String bindUserMac(String cardNo) throws UnsupportedEncodingException {
		if (StringUtils.isBlank(cardNo)){
			return "redirect:"+HttpParame.FRONT_URI+"/#/login?message=" + URLEncoder.encode("请绑定信息", "UTF-8");
		}
		Map<String, String> wechatLoginUrl = wechatScanLoginService.wechatBindUrl(cardNo);
		String url = wechatLoginUrl.get("url");
		System.out.println(url);
		return "redirect:" + url;
	}

	@Override
	@PassToken
	public String bindcallback(String code, String state, String cardNo) throws UnsupportedEncodingException {
		System.out.println(code+"==="+state+"=="+cardNo);
		if (code != null && state != null) {
			// 验证state为了用于防止跨站请求伪造攻击
			String decrypt = AesUtil.decrypt(AesUtil.parseHexStr2Byte(state), AesUtil.PASSWORD_SECRET_KEY, 16);
			if (!decrypt.equals(Constanst.PWD_MD5 + DateUtils.getYYYYMMdd())) {
				return "redirect:"+HttpParame.FRONT_URI+"/#/login?message=" + URLEncoder.encode("请勿非法进入", "UTF-8");
			}
			AccessToken access = wechatScanLoginService.getAccessToken(code);
			if (access != null) {
				String openid = access.getOpenid();
				/*SmartUser user = wechatScanLoginService.selectByOpenid(openid);
				if (user!=null) {		*//*不存在*//*
					return "redirect:"+HttpParame.FRONT_URI+"/#/login?message=" + URLEncoder.encode("该卡号已绑定其他用户", "UTF-8");
				}*/
				SmartUser userc = wechatScanLoginService.selectByCardNo(cardNo);
				if (userc==null){
					return "redirect:"+HttpParame.FRONT_URI+"/#/login?message=" + URLEncoder.encode("卡号信息错误", "UTF-8");
				}
				if (userc.getOpenId()!=null){
					return "redirect:"+HttpParame.FRONT_URI+"/#/login?message=" + URLEncoder.encode("该卡号已绑定其他用户", "UTF-8");
				}
				userc.setOpenId(openid);
				int m = wechatScanLoginService.updateSmartUser(userc);
				if (m>0){
					String token = JWTUtil.getToken(userc);
					return "redirect:"+HttpParame.FRONT_URI+"/#/wanzai/home?token=" + token;
				}
			}
		}
		return "redirect:"+HttpParame.FRONT_URI+"/#/login?message=" + URLEncoder.encode("系统异常", "UTF-8");
	}

	@Override
	@PassToken
    public String insertMonthMeter(String month){
		if (month==null){
			month=TimeExchange2.getMonth();
		}
		wechatScanLoginService.insertMonthMeter(month);
		return "插入完毕";
	}

	@Override
	@PassToken
	public String insertDayMeter(String day){
		if (day==null){
			day=TimeExchange2.getDateStr();
		}
		wechatScanLoginService.insertDayMeter(day);
		return "插入完毕";
	}

	/**
	 * Description: 用户类别统计
	 */
	@Override
	@PassToken
	public CommonResult getUserIdTj(){
		List<Tj> list = wechatScanLoginService.getUserIdTj();
		return CommonResult.ok(list);
	}

	/**
	 * Description: 用户总数
	 */
	@Override
	@PassToken
	public CommonResult getUserIdTjt(){
		All list = wechatScanLoginService.getUserIdTjt();
		return CommonResult.ok(list);
	}

	/**
	 * Description: 水表总计
	 */
	@Override
	@PassToken
	public CommonResult getWaterTj(){
		DAll list = wechatScanLoginService.getWaterTj();
		return CommonResult.ok(list);
	}

	/**
	 * Description: 电表总计
	 */
	@Override
	@PassToken
	public CommonResult getElcTj(){
		DAll list = wechatScanLoginService.getElcTj();
		return CommonResult.ok(list);
	}

	/**
	 * Description: 每月水费查询
	 */
	@Override
	@PassToken
	public CommonResult getMonWater() throws ParseException {
		List<MonthMeterDetail> list = wechatScanLoginService.getMonWater();
		return CommonResult.ok(list);
	}

	/**
	 * Description: 每月电费查询
	 */
	@Override
	@PassToken
	public CommonResult getMonElc() throws ParseException {
		List<MonthMeterDetail> list = wechatScanLoginService.getMonElc();
		return CommonResult.ok(list);
	}

	/**
	 * Description: 区域能耗统计
	 */
	@Override
	@PassToken
	public CommonResult getMeterMonthPage(@RequestBody MeterMonthData meterMonthData,int currentPage, int pageCount) {
		PageHelper.startPage(currentPage, pageCount);
		PageInfo<MeterMonthData> list = wechatScanLoginService.getMeterMonthPage(meterMonthData);
		return CommonResult.ok(list);
	}

	/**
	 * Description: 实时抄表
	 */
	@Override
	@PassToken
	public CommonResult getMeterDayPage(@RequestBody MeterMonthData meterMonthData, int currentPage, int pageCount) {
		PageHelper.startPage(currentPage, pageCount);
		PageInfo<MeterMonthData> list = wechatScanLoginService.getMeterDayPage(meterMonthData);
		return CommonResult.ok(list);
	}

	/**
	 * Description: 查轨迹
	 */
	@Override
	@PassToken
	public CommonResult getPosition() {
		List<List<BigDecimal>> ld = RandomTrackAlgorithm.getPosition();
		return CommonResult.ok(ld);
	}

	@Override
	@PassToken
	public CommonResult vertify(String code){
		if (StringUtils.isBlank(code)){
			return CommonResult.fail("请传入code");
		}
		String url = "https://api.weixin.qq.com/sns/jscode2session?" +
				"appid=" + PropertiesUtil.getValue(HttpParame.APPID) +
				"&secret=" + PropertiesUtil.getValue(HttpParame.SECRET) +
				"&js_code=" + code +
				"&grant_type=authorization_code";

		String json = HttpClientUtils.getInstance().sendHttpGet(url);
		Gson gson = new Gson();
		HashMap<String, String> userMap = gson.fromJson(json.toString(), new TypeToken<HashMap<String, String>>() {}.getType());
		String openid = "";
		try {
			openid = userMap.get("openid").toString();
		} catch (Exception e) {
			return CommonResult.fail("code异常");
		}
		SmartUser user = wechatScanLoginService.selectByOpenid(openid);
		if (user==null){
			return CommonResult.fail("请绑定后再进入");
		}
		String token = JWTUtil.getToken(user);
		JSONObject jsonObject = new JSONObject();
		jsonObject.put("token", token);
		return CommonResult.ok(jsonObject.toString());
	}
}