微信小程序wx.getLocation()获取经纬度及JavaScript SDK调用腾讯地图API获取某一类地址

 

简介

腾讯位置服务为微信小程序提供了基础的标点能力、线和圆的绘制接口等地图组件和位置展示、地图选点等地图API位置服务能力支持，使得开发者可以自由地实现自己的微信小程序产品。 在此基础上，腾讯位置服务微信小程序JavaScript SDK是专为小程序开发者提供的LBS数据服务工具包，可以在小程序中调用腾讯位置服务的POI检索、关键词输入提示、地址解析、逆地址解析、行政区划和距离计算等数据服务，让您的小程序更强大！

有时候我们在做微信小程序时有些功能需要获取当前的地理位置及附近地点的一些要求，但是微信小程序内部还不能够满足这些，所以我们调用第三方地图可以选择腾讯地图、百度地图API,这里我们调用腾讯地图

利用微信自定义函数 wx.getLocation()时返回的是当前地理位置的经度和纬度，

 

onLoad: function (options) {

_this = this;

wx.getLocation({

success: function (res) {

_this.getDistrict(res.latitude, res.longitude)

console.log("纬度："+res.latitude,"经度"+ res.longitude)

},

})

 

},

　　

当wxml页面渲染成功后执行onload函数，我们在控制台打印了可以看到当前的经度和纬度：

但是执行函数只能获取到当前的经纬度，还不能满足我们的要求，需要获得当前的省、市、区及精确位置，在这里可以选腾讯地图api：到官网注册

https://lbs.qq.com/

到官网注册之后选择微信小程序Java script SDK，创建新的密钥

 

如果是微信小程序这里会绑定微信小程序唯一appid，第二个点击webServiceAPI，点击之后可以添加白名单自己的域名，课可以手动

填写指定ip地址来调用它，腾讯地图设置ok之后开始写微信代码：

先来获取当前的地址位置 省 市 区

let keys = '自己的腾讯地图密钥';
let _page, _this;
var address =''
Page({

  /**
   * 页面的初始数据
   */
  data: {
    customItem: '全部'
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    _this = this;
    wx.getLocation({
      success: function (res) {
        _this.getDistrict(res.latitude, res.longitude)
        console.log("纬度："+res.latitude,"经度"+ res.longitude)
      },
    })

   
  },
  onShow: function () {
    
  },
 
  getDistrict(latitude, longitude) {
    _page = this;
    wx.request({
      url: `https://apis.map.qq.com/ws/geocoder/v1/?location=${latitude},${longitude}&key=${keys}`,
      header: {
        'Content-Type': 'application/json'
      },
      success: function (res) {
        console.log(res.data.result.address_component.district, res.data.result)

        // 省
        let province = res.data.result.address_component.province;
        // 市
        let city = res.data.result.address_component.city;
        // 区
        let district = res.data.result.address_component.district;

        _page.setData({
          district: res.data.result.address_component.district,
          region: [province, city, district]
        })
      }
    })
  },

})

　　

 这里请求地址为

https://apis.map.qq.com/ws/geocoder/v1/?location=${latitude},${longitude}&key=${keys}

latitude和longitude为页面加载之后获得的经纬度，和key三个变量

返回结果为result

 

我们这样可以在页面上获取到当前的省市

 

我们还可以引用地图来选择查询某一类的地址，比如这里选择 附近的小区

 

qqmapsdk = new QQMapWX({
      key: '腾讯地图key'
    })
    // 调用接口
    qqmapsdk.search({
      keyword: '小区',
      success: function (res) {
      console.log(res)
      that.setData({
        address: res.data
      })
      },
    });
    

 

请求成功之后会返回数据，具体位置存放在data数组里面,我们可以一一调用，遍历所有的地址

在页面上渲染如图：

这个页面引用外部js

var QQMapWX = require('../../libs/qqmap-wx-jssdk.js');
var qqmapsdk;

Page({

  /**
   * 页面的初始数据
   */
  data: {
    
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function () {
    var that = this
    qqmapsdk = new QQMapWX({
      key: '腾讯地图key'
    })
    // 调用接口
    qqmapsdk.search({
      keyword: '小区',
      success: function (res) {
      console.log(res)
      that.setData({
        address: res.data
      })
      },
    });
    
   
  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {
    
  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {
   
    
  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function () {
    
  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload: function () {
    
  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh: function () {
    
  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom: function () {
    
  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage: function () {
    
  }
})

　　

qqmap-wx-jssdk.js:

/**
 * 微信小程序JavaScriptSDK
 * 
 * @version 1.2
 * @date 2019-03-06
 * @author v_ylyue@tencent.com
 */

var ERROR_CONF = {
    KEY_ERR: 311,
    KEY_ERR_MSG: 'key格式错误',
    PARAM_ERR: 310,
    PARAM_ERR_MSG: '请求参数信息有误',
    SYSTEM_ERR: 600,
    SYSTEM_ERR_MSG: '系统错误',
    WX_ERR_CODE: 1000,
    WX_OK_CODE: 200
};
var BASE_URL = 'https://apis.map.qq.com/ws/';
var URL_SEARCH = BASE_URL + 'place/v1/search';
var URL_SUGGESTION = BASE_URL + 'place/v1/suggestion';
var URL_GET_GEOCODER = BASE_URL + 'geocoder/v1/';
var URL_CITY_LIST = BASE_URL + 'district/v1/list';
var URL_AREA_LIST = BASE_URL + 'district/v1/getchildren';
var URL_DISTANCE = BASE_URL + 'distance/v1/';
var URL_DIRECTION = BASE_URL + 'direction/v1/';
var MODE = {
  driving: 'driving',
  transit: 'transit'
};
var EARTH_RADIUS = 6378136.49;
var Utils = {
  /**
  * md5加密方法
  * 版权所有©2011 Sebastian Tschan，https：//blueimp.net
  */
  safeAdd(x, y) {
    var lsw = (x & 0xffff) + (y & 0xffff);
    var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
    return (msw << 16) | (lsw & 0xffff);
  },
  bitRotateLeft(num, cnt) {
    return (num << cnt) | (num >>> (32 - cnt));
  },
  md5cmn(q, a, b, x, s, t) {
    return this.safeAdd(this.bitRotateLeft(this.safeAdd(this.safeAdd(a, q), this.safeAdd(x, t)), s), b);
  },
  md5ff(a, b, c, d, x, s, t) {
    return this.md5cmn((b & c) | (~b & d), a, b, x, s, t);
  },
  md5gg(a, b, c, d, x, s, t) {
    return this.md5cmn((b & d) | (c & ~d), a, b, x, s, t);
  },
  md5hh(a, b, c, d, x, s, t) {
    return this.md5cmn(b ^ c ^ d, a, b, x, s, t);
  },
  md5ii(a, b, c, d, x, s, t) {
    return this.md5cmn(c ^ (b | ~d), a, b, x, s, t);
  },
  binlMD5(x, len) {
    /* append padding */
    x[len >> 5] |= 0x80 << (len % 32);
    x[((len + 64) >>> 9 << 4) + 14] = len;

    var i;
    var olda;
    var oldb;
    var oldc;
    var oldd;
    var a = 1732584193;
    var b = -271733879;
    var c = -1732584194;
    var d = 271733878;

    for (i = 0; i < x.length; i += 16) {
      olda = a;
      oldb = b;
      oldc = c;
      oldd = d;

      a = this.md5ff(a, b, c, d, x[i], 7, -680876936);
      d = this.md5ff(d, a, b, c, x[i + 1], 12, -389564586);
      c = this.md5ff(c, d, a, b, x[i + 2], 17, 606105819);
      b = this.md5ff(b, c, d, a, x[i + 3], 22, -1044525330);
      a = this.md5ff(a, b, c, d, x[i + 4], 7, -176418897);
      d = this.md5ff(d, a, b, c, x[i + 5], 12, 1200080426);
      c = this.md5ff(c, d, a, b, x[i + 6], 17, -1473231341);
      b = this.md5ff(b, c, d, a, x[i + 7], 22, -45705983);
      a = this.md5ff(a, b, c, d, x[i + 8], 7, 1770035416);
      d = this.md5ff(d, a, b, c, x[i + 9], 12, -1958414417);
      c = this.md5ff(c, d, a, b, x[i + 10], 17, -42063);
      b = this.md5ff(b, c, d, a, x[i + 11], 22, -1990404162);
      a = this.md5ff(a, b, c, d, x[i + 12], 7, 1804603682);
      d = this.md5ff(d, a, b, c, x[i + 13], 12, -40341101);
      c = this.md5ff(c, d, a, b, x[i + 14], 17, -1502002290);
      b = this.md5ff(b, c, d, a, x[i + 15], 22, 1236535329);

      a = this.md5gg(a, b, c, d, x[i + 1], 5, -165796510);
      d = this.md5gg(d, a, b, c, x[i + 6], 9, -1069501632);
      c = this.md5gg(c, d, a, b, x[i + 11], 14, 643717713);
      b = this.md5gg(b, c, d, a, x[i], 20, -373897302);
      a = this.md5gg(a, b, c, d, x[i + 5], 5, -701558691);
      d = this.md5gg(d, a, b, c, x[i + 10], 9, 38016083);
      c = this.md5gg(c, d, a, b, x[i + 15], 14, -660478335);
      b = this.md5gg(b, c, d, a, x[i + 4], 20, -405537848);
      a = this.md5gg(a, b, c, d, x[i + 9], 5, 568446438);
      d = this.md5gg(d, a, b, c, x[i + 14], 9, -1019803690);
      c = this.md5gg(c, d, a, b, x[i + 3], 14, -187363961);
      b = this.md5gg(b, c, d, a, x[i + 8], 20, 1163531501);
      a = this.md5gg(a, b, c, d, x[i + 13], 5, -1444681467);
      d = this.md5gg(d, a, b, c, x[i + 2], 9, -51403784);
      c = this.md5gg(c, d, a, b, x[i + 7], 14, 1735328473);
      b = this.md5gg(b, c, d, a, x[i + 12], 20, -1926607734);

      a = this.md5hh(a, b, c, d, x[i + 5], 4, -378558);
      d = this.md5hh(d, a, b, c, x[i + 8], 11, -2022574463);
      c = this.md5hh(c, d, a, b, x[i + 11], 16, 1839030562);
      b = this.md5hh(b, c, d, a, x[i + 14], 23, -35309556);
      a = this.md5hh(a, b, c, d, x[i + 1], 4, -1530992060);
      d = this.md5hh(d, a, b, c, x[i + 4], 11, 1272893353);
      c = this.md5hh(c, d, a, b, x[i + 7], 16, -155497632);
      b = this.md5hh(b, c, d, a, x[i + 10], 23, -1094730640);
      a = this.md5hh(a, b, c, d, x[i + 13], 4, 681279174);
      d = this.md5hh(d, a, b, c, x[i], 11, -358537222);
      c = this.md5hh(c, d, a, b, x[i + 3], 16, -722521979);
      b = this.md5hh(b, c, d, a, x[i + 6], 23, 76029189);
      a = this.md5hh(a, b, c, d, x[i + 9], 4, -640364487);
      d = this.md5hh(d, a, b, c, x[i + 12], 11, -421815835);
      c = this.md5hh(c, d, a, b, x[i + 15], 16, 530742520);
      b = this.md5hh(b, c, d, a, x[i + 2], 23, -995338651);

      a = this.md5ii(a, b, c, d, x[i], 6, -198630844);
      d = this.md5ii(d, a, b, c, x[i + 7], 10, 1126891415);
      c = this.md5ii(c, d, a, b, x[i + 14], 15, -1416354905);
      b = this.md5ii(b, c, d, a, x[i + 5], 21, -57434055);
      a = this.md5ii(a, b, c, d, x[i + 12], 6, 1700485571);
      d = this.md5ii(d, a, b, c, x[i + 3], 10, -1894986606);
      c = this.md5ii(c, d, a, b, x[i + 10], 15, -1051523);
      b = this.md5ii(b, c, d, a, x[i + 1], 21, -2054922799);
      a = this.md5ii(a, b, c, d, x[i + 8], 6, 1873313359);
      d = this.md5ii(d, a, b, c, x[i + 15], 10, -30611744);
      c = this.md5ii(c, d, a, b, x[i + 6], 15, -1560198380);
      b = this.md5ii(b, c, d, a, x[i + 13], 21, 1309151649);
      a = this.md5ii(a, b, c, d, x[i + 4], 6, -145523070);
      d = this.md5ii(d, a, b, c, x[i + 11], 10, -1120210379);
      c = this.md5ii(c, d, a, b, x[i + 2], 15, 718787259);
      b = this.md5ii(b, c, d, a, x[i + 9], 21, -343485551);

      a = this.safeAdd(a, olda);
      b = this.safeAdd(b, oldb);
      c = this.safeAdd(c, oldc);
      d = this.safeAdd(d, oldd);
    }
    return [a, b, c, d];
  },
  binl2rstr(input) {
    var i;
    var output = '';
    var length32 = input.length * 32;
    for (i = 0; i < length32; i += 8) {
      output += String.fromCharCode((input[i >> 5] >>> (i % 32)) & 0xff);
    }
    return output;
  },
  rstr2binl(input) {
    var i;
    var output = [];
    output[(input.length >> 2) - 1] = undefined;
    for (i = 0; i < output.length; i += 1) {
      output[i] = 0;
    }
    var length8 = input.length * 8;
    for (i = 0; i < length8; i += 8) {
      output[i >> 5] |= (input.charCodeAt(i / 8) & 0xff) << (i % 32);
    }
    return output;
  },
  rstrMD5(s) {
    return this.binl2rstr(this.binlMD5(this.rstr2binl(s), s.length * 8));
  },
  rstrHMACMD5(key, data) {
    var i;
    var bkey = this.rstr2binl(key);
    var ipad = [];
    var opad = [];
    var hash;
    ipad[15] = opad[15] = undefined;
    if (bkey.length > 16) {
      bkey = this.binlMD5(bkey, key.length * 8);
    }
    for (i = 0; i < 16; i += 1) {
      ipad[i] = bkey[i] ^ 0x36363636;
      opad[i] = bkey[i] ^ 0x5c5c5c5c;
    }
    hash = this.binlMD5(ipad.concat(this.rstr2binl(data)), 512 + data.length * 8);
    return this.binl2rstr(this.binlMD5(opad.concat(hash), 512 + 128));
  },
  rstr2hex(input) {
    var hexTab = '0123456789abcdef';
    var output = '';
    var x;
    var i;
    for (i = 0; i < input.length; i += 1) {
      x = input.charCodeAt(i);
      output += hexTab.charAt((x >>> 4) & 0x0f) + hexTab.charAt(x & 0x0f);
    }
    return output;
  },
  str2rstrUTF8(input) {
    return unescape(encodeURIComponent(input));
  },
  rawMD5(s) {
    return this.rstrMD5(this.str2rstrUTF8(s));
  },
  hexMD5(s) {
    return this.rstr2hex(this.rawMD5(s));
  },
  rawHMACMD5(k, d) {
    return this.rstrHMACMD5(this.str2rstrUTF8(k), str2rstrUTF8(d));
  },
  hexHMACMD5(k, d) {
    return this.rstr2hex(this.rawHMACMD5(k, d));
  },

  md5(string, key, raw) {
    if (!key) {
      if (!raw) {
        return this.hexMD5(string);
      }
      return this.rawMD5(string);
    }
    if (!raw) {
      return this.hexHMACMD5(key, string);
    }
    return this.rawHMACMD5(key, string);
  },
  /**
   * 得到md5加密后的sig参数
   * @param {Object} requestParam 接口参数
   * @param {String} sk签名字符串
   * @param {String} featrue 方法名
   * @return 返回加密后的sig参数
   */
  getSig(requestParam, sk, feature, mode) {
    var sig = null;
    var requestArr = [];
    Object.keys(requestParam).sort().forEach(function(key){
      requestArr.push(key + '=' + requestParam[key]);
    });
    if (feature == 'search') {
      sig = '/ws/place/v1/search?' + requestArr.join('&') + sk;
    }
    if (feature == 'suggest') {
      sig = '/ws/place/v1/suggestion?' + requestArr.join('&') + sk;
    }
    if (feature == 'reverseGeocoder') {
      sig = '/ws/geocoder/v1/?' + requestArr.join('&') + sk;
    }
    if (feature == 'geocoder') {
      sig = '/ws/geocoder/v1/?' + requestArr.join('&') + sk;
    }
    if (feature == 'getCityList') {
      sig = '/ws/district/v1/list?' + requestArr.join('&') + sk;
    }
    if (feature == 'getDistrictByCityId') {
      sig = '/ws/district/v1/getchildren?' + requestArr.join('&') + sk;
    }
    if (feature == 'calculateDistance') {
      sig = '/ws/distance/v1/?' + requestArr.join('&') + sk;
    }
    if (feature == 'direction') {
      sig = '/ws/direction/v1/' + mode + '?' + requestArr.join('&') + sk;
    }
    sig = this.md5(sig);
    return sig;
  },
    /**
     * 得到终点query字符串
     * @param {Array|String} 检索数据
     */
    location2query(data) {
        if (typeof data == 'string') {
            return data;
        }
        var query = '';
        for (var i = 0; i < data.length; i++) {
            var d = data[i];
            if (!!query) {
                query += ';';
            }
            if (d.location) {
                query = query + d.location.lat + ',' + d.location.lng;
            }
            if (d.latitude && d.longitude) {
                query = query + d.latitude + ',' + d.longitude;
            }
        }
        return query;
    },

    /**
     * 计算角度
     */
    rad(d) {
      return d * Math.PI / 180.0;
    },  
    /**
     * 处理终点location数组
     * @return 返回终点数组
     */
    getEndLocation(location){
      var to = location.split(';');
      var endLocation = [];
      for (var i = 0; i < to.length; i++) {
        endLocation.push({
          lat: parseFloat(to[i].split(',')[0]),
          lng: parseFloat(to[i].split(',')[1])
        })
      }
      return endLocation;
    },

    /**
     * 计算两点间直线距离
     * @param a 表示纬度差
     * @param b 表示经度差
     * @return 返回的是距离，单位m
     */
    getDistance(latFrom, lngFrom, latTo, lngTo) {
      var radLatFrom = this.rad(latFrom);
      var radLatTo = this.rad(latTo);
      var a = radLatFrom - radLatTo;
      var b = this.rad(lngFrom) - this.rad(lngTo);
      var distance = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(a / 2), 2) + Math.cos(radLatFrom) * Math.cos(radLatTo) * Math.pow(Math.sin(b / 2), 2)));
      distance = distance * EARTH_RADIUS;
      distance = Math.round(distance * 10000) / 10000;
      return parseFloat(distance.toFixed(0));
    },
    /**
     * 使用微信接口进行定位
     */
    getWXLocation(success, fail, complete) {
        wx.getLocation({
            type: 'gcj02',
            success: success,
            fail: fail,
            complete: complete
        });
    },

    /**
     * 获取location参数
     */
    getLocationParam(location) {
        if (typeof location == 'string') {
            var locationArr = location.split(',');
            if (locationArr.length === 2) {
                location = {
                    latitude: location.split(',')[0],
                    longitude: location.split(',')[1]
                };
            } else {
                location = {};
            }
        }
        return location;
    },

    /**
     * 回调函数默认处理
     */
    polyfillParam(param) {
        param.success = param.success || function () { };
        param.fail = param.fail || function () { };
        param.complete = param.complete || function () { };
    },

    /**
     * 验证param对应的key值是否为空
     * 
     * @param {Object} param 接口参数
     * @param {String} key 对应参数的key
     */
    checkParamKeyEmpty(param, key) {
        if (!param[key]) {
            var errconf = this.buildErrorConfig(ERROR_CONF.PARAM_ERR, ERROR_CONF.PARAM_ERR_MSG + key +'参数格式有误');
            param.fail(errconf);
            param.complete(errconf);
            return true;
        }
        return false;
    },

    /**
     * 验证参数中是否存在检索词keyword
     * 
     * @param {Object} param 接口参数
     */
    checkKeyword(param){
        return !this.checkParamKeyEmpty(param, 'keyword');
    },

    /**
     * 验证location值
     * 
     * @param {Object} param 接口参数
     */
    checkLocation(param) {
        var location = this.getLocationParam(param.location);
        if (!location || !location.latitude || !location.longitude) {
            var errconf = this.buildErrorConfig(ERROR_CONF.PARAM_ERR, ERROR_CONF.PARAM_ERR_MSG + ' location参数格式有误');
            param.fail(errconf);
            param.complete(errconf);
            return false;
        }
        return true;
    },

    /**
     * 构造错误数据结构
     * @param {Number} errCode 错误码
     * @param {Number} errMsg 错误描述
     */
    buildErrorConfig(errCode, errMsg) {
        return {
            status: errCode,
            message: errMsg
        };
    },

    /**
     * 
     * 数据处理函数
     * 根据传入参数不同处理不同数据
     * @param {String} feature 功能名称
     * search 地点搜索
     * suggest关键词提示
     * reverseGeocoder逆地址解析
     * geocoder地址解析
     * getCityList获取城市列表：父集
     * getDistrictByCityId获取区县列表：子集
     * calculateDistance距离计算
     * @param {Object} param 接口参数
     * @param {Object} data 数据
     */
    handleData(param,data,feature){
      if (feature == 'search') {
        var searchResult = data.data;
        var searchSimplify = [];
        for (var i = 0; i < searchResult.length; i++) {
          searchSimplify.push({
            id: searchResult[i].id || null,
            title: searchResult[i].title || null,
            latitude: searchResult[i].location && searchResult[i].location.lat || null,
            longitude: searchResult[i].location && searchResult[i].location.lng || null,
            address: searchResult[i].address || null,
            category: searchResult[i].category || null,
            tel: searchResult[i].tel || null,
            adcode: searchResult[i].ad_info && searchResult[i].ad_info.adcode || null,
            city: searchResult[i].ad_info && searchResult[i].ad_info.city || null,
            district: searchResult[i].ad_info && searchResult[i].ad_info.district || null,
            province: searchResult[i].ad_info && searchResult[i].ad_info.province || null
          })
        }
        param.success(data, {
          searchResult: searchResult,
          searchSimplify: searchSimplify
        })
      } else if (feature == 'suggest') {
        var suggestResult = data.data;
        var suggestSimplify = [];
        for (var i = 0; i < suggestResult.length; i++) {
          suggestSimplify.push({
            adcode: suggestResult[i].adcode || null,
            address: suggestResult[i].address || null,
            category: suggestResult[i].category || null,
            city: suggestResult[i].city || null,
            district: suggestResult[i].district || null,
            id: suggestResult[i].id || null,
            latitude: suggestResult[i].location && suggestResult[i].location.lat || null,
            longitude: suggestResult[i].location && suggestResult[i].location.lng || null,
            province: suggestResult[i].province || null,
            title: suggestResult[i].title || null,
            type: suggestResult[i].type || null
          })
        }
        param.success(data, {
          suggestResult: suggestResult,
          suggestSimplify: suggestSimplify
          })
      } else if (feature == 'reverseGeocoder') {
        var reverseGeocoderResult = data.result;
        var reverseGeocoderSimplify = {
          address: reverseGeocoderResult.address || null,
          latitude: reverseGeocoderResult.location && reverseGeocoderResult.location.lat || null,
          longitude: reverseGeocoderResult.location && reverseGeocoderResult.location.lng || null,
          adcode: reverseGeocoderResult.ad_info && reverseGeocoderResult.ad_info.adcode || null,
          city: reverseGeocoderResult.address_component && reverseGeocoderResult.address_component.city || null,
          district: reverseGeocoderResult.address_component && reverseGeocoderResult.address_component.district || null,
          nation: reverseGeocoderResult.address_component && reverseGeocoderResult.address_component.nation || null,
          province: reverseGeocoderResult.address_component && reverseGeocoderResult.address_component.province || null,
          street: reverseGeocoderResult.address_component && reverseGeocoderResult.address_component.street || null,
          street_number: reverseGeocoderResult.address_component && reverseGeocoderResult.address_component.street_number || null,
          recommend: reverseGeocoderResult.formatted_addresses && reverseGeocoderResult.formatted_addresses.recommend || null,
          rough: reverseGeocoderResult.formatted_addresses && reverseGeocoderResult.formatted_addresses.rough || null
        };
        if (reverseGeocoderResult.pois) {//判断是否返回周边poi
          var pois = reverseGeocoderResult.pois;
          var poisSimplify = [];
          for (var i = 0;i < pois.length;i++) {
            poisSimplify.push({
              id: pois[i].id || null,
              title: pois[i].title || null,
              latitude: pois[i].location && pois[i].location.lat || null,
              longitude: pois[i].location && pois[i].location.lng || null,
              address: pois[i].address || null,
              category: pois[i].category || null,
              adcode: pois[i].ad_info && pois[i].ad_info.adcode || null,
              city: pois[i].ad_info && pois[i].ad_info.city || null,
              district: pois[i].ad_info && pois[i].ad_info.district || null,
              province: pois[i].ad_info && pois[i].ad_info.province || null
            })
          }
          param.success(data,{
            reverseGeocoderResult: reverseGeocoderResult,
            reverseGeocoderSimplify: reverseGeocoderSimplify,
            pois: pois,
            poisSimplify: poisSimplify
          })
        } else {
          param.success(data, {
            reverseGeocoderResult: reverseGeocoderResult,
            reverseGeocoderSimplify: reverseGeocoderSimplify
          })
        }
      } else if (feature == 'geocoder') {
        var geocoderResult = data.result;
        var geocoderSimplify = {
          title: geocoderResult.title || null,
          latitude: geocoderResult.location && geocoderResult.location.lat || null,
          longitude: geocoderResult.location && geocoderResult.location.lng || null,
          adcode: geocoderResult.ad_info && geocoderResult.ad_info.adcode || null,
          province: geocoderResult.address_components && geocoderResult.address_components.province || null,
          city: geocoderResult.address_components && geocoderResult.address_components.city || null,
          district: geocoderResult.address_components && geocoderResult.address_components.district || null,
          street: geocoderResult.address_components && geocoderResult.address_components.street || null,
          street_number: geocoderResult.address_components && geocoderResult.address_components.street_number || null,
          level: geocoderResult.level || null
        };
        param.success(data,{
          geocoderResult: geocoderResult,
          geocoderSimplify: geocoderSimplify
        });
      } else if (feature == 'getCityList') {
        var provinceResult = data.result[0];
        var cityResult = data.result[1];
        var districtResult = data.result[2];
        param.success(data,{
          provinceResult: provinceResult,
          cityResult: cityResult,
          districtResult: districtResult
        });
      } else if (feature == 'getDistrictByCityId') {
        var districtByCity = data.result[0];
        param.success(data, districtByCity);
      } else if (feature == 'calculateDistance') {
        var calculateDistanceResult = data.result.elements;  
        var distance = [];
        for (var i = 0; i < calculateDistanceResult.length; i++){
          distance.push(calculateDistanceResult[i].distance);
        }   
        param.success(data, {
          calculateDistanceResult: calculateDistanceResult,
          distance: distance
          });
      } else if (feature == 'direction') {
        var direction = data.result.routes;
        param.success(data,direction);
      } else {
        param.success(data);
      }
    },

    /**
     * 构造微信请求参数，公共属性处理
     * 
     * @param {Object} param 接口参数
     * @param {Object} param 配置项
     * @param {String} feature 方法名
     */
    buildWxRequestConfig(param, options, feature) {
        var that = this;
        options.header = { "content-type": "application/json" };
        options.method = 'GET';
        options.success = function (res) {
            var data = res.data;
            if (data.status === 0) {
              that.handleData(param, data, feature);
            } else {
                param.fail(data);
            }
        };
        options.fail = function (res) {
            res.statusCode = ERROR_CONF.WX_ERR_CODE;
            param.fail(that.buildErrorConfig(ERROR_CONF.WX_ERR_CODE, res.errMsg));
        };
        options.complete = function (res) {
            var statusCode = +res.statusCode;
            switch(statusCode) {
                case ERROR_CONF.WX_ERR_CODE: {
                    param.complete(that.buildErrorConfig(ERROR_CONF.WX_ERR_CODE, res.errMsg));
                    break;
                }
                case ERROR_CONF.WX_OK_CODE: {
                    var data = res.data;
                    if (data.status === 0) {
                        param.complete(data);
                    } else {
                        param.complete(that.buildErrorConfig(data.status, data.message));
                    }
                    break;
                }
                default:{
                    param.complete(that.buildErrorConfig(ERROR_CONF.SYSTEM_ERR, ERROR_CONF.SYSTEM_ERR_MSG));
                }

            }
        };
        return options;
    },

    /**
     * 处理用户参数是否传入坐标进行不同的处理
     */
    locationProcess(param, locationsuccess, locationfail, locationcomplete) {
        var that = this;
        locationfail = locationfail || function (res) {
            res.statusCode = ERROR_CONF.WX_ERR_CODE;
            param.fail(that.buildErrorConfig(ERROR_CONF.WX_ERR_CODE, res.errMsg));
        };
        locationcomplete = locationcomplete || function (res) {
            if (res.statusCode == ERROR_CONF.WX_ERR_CODE) {
                param.complete(that.buildErrorConfig(ERROR_CONF.WX_ERR_CODE, res.errMsg));
            }
        };
        if (!param.location) {
            that.getWXLocation(locationsuccess, locationfail, locationcomplete);
        } else if (that.checkLocation(param)) {
            var location = Utils.getLocationParam(param.location);
            locationsuccess(location);
        }
    }
};


class QQMapWX {

    /**
     * 构造函数
     * 
     * @param {Object} options 接口参数,key 为必选参数
     */
    constructor(options) {
        if (!options.key) {
            throw Error('key值不能为空');
        }
        this.key = options.key;
    };

    /**
     * POI周边检索
     *
     * @param {Object} options 接口参数对象
     * 
     * 参数对象结构可以参考
     * @see http://lbs.qq.com/webservice_v1/guide-search.html
     */
    search(options) {
        var that = this;
        options = options || {};

        Utils.polyfillParam(options);

        if (!Utils.checkKeyword(options)) {
            return;
        }

        var requestParam = {
            keyword: options.keyword,
            orderby: options.orderby || '_distance',
            page_size: options.page_size || 10,
            page_index: options.page_index || 1,
            output: 'json',
            key: that.key
        };

        if (options.address_format) {
            requestParam.address_format = options.address_format;
        }

        if (options.filter) {
            requestParam.filter = options.filter;
        }

        var distance = options.distance || "1000";
        var auto_extend = options.auto_extend || 1;
        var region = null;
        var rectangle = null;

        //判断城市限定参数
        if (options.region) {
          region = options.region;
        }

        //矩形限定坐标(暂时只支持字符串格式)
        if (options.rectangle) {
          rectangle = options.rectangle;
        }

        var locationsuccess = function (result) {        
          if (region && !rectangle) {
            //城市限定参数拼接
            requestParam.boundary = "region(" + region + "," + auto_extend + "," + result.latitude + "," + result.longitude + ")";
            if (options.sig) {
              requestParam.sig = Utils.getSig(requestParam, options.sig, 'search');
            }
          } else if (rectangle && !region) {
            //矩形搜索
            requestParam.boundary = "rectangle(" + rectangle + ")";
            if (options.sig) {
              requestParam.sig = Utils.getSig(requestParam, options.sig, 'search');
            }
            } else {
              requestParam.boundary = "nearby(" + result.latitude + "," + result.longitude + "," + distance + "," + auto_extend + ")";
            if (options.sig) {
              requestParam.sig = Utils.getSig(requestParam, options.sig, 'search');
            }
            }            
            wx.request(Utils.buildWxRequestConfig(options, {
                url: URL_SEARCH,
                data: requestParam
            }, 'search'));
        };
        Utils.locationProcess(options, locationsuccess);
    };

    /**
     * sug模糊检索
     *
     * @param {Object} options 接口参数对象
     * 
     * 参数对象结构可以参考
     * http://lbs.qq.com/webservice_v1/guide-suggestion.html
     */
    getSuggestion(options) {
        var that = this;
        options = options || {};
        Utils.polyfillParam(options);

        if (!Utils.checkKeyword(options)) {
            return;
        }

        var requestParam = {
            keyword: options.keyword,
            region: options.region || '全国',
            region_fix: options.region_fix || 0,
            policy: options.policy || 0,
            page_size: options.page_size || 10,//控制显示条数
            page_index: options.page_index || 1,//控制页数
            get_subpois : options.get_subpois || 0,//返回子地点
            output: 'json',
            key: that.key
        };
        //长地址
        if (options.address_format) {
          requestParam.address_format = options.address_format;
        }
        //过滤
        if (options.filter) {
          requestParam.filter = options.filter;
        }
        //排序
        if (options.location) {
          var locationsuccess = function (result) {
            requestParam.location = result.latitude + ',' + result.longitude;
            if (options.sig) {
              requestParam.sig = Utils.getSig(requestParam, options.sig, 'suggest');
            }
            wx.request(Utils.buildWxRequestConfig(options, {
              url: URL_SUGGESTION,
              data: requestParam
            }, "suggest"));      
          };
          Utils.locationProcess(options, locationsuccess);
        } else {
          if (options.sig) {
            requestParam.sig = Utils.getSig(requestParam, options.sig, 'suggest');
          }
          wx.request(Utils.buildWxRequestConfig(options, {
            url: URL_SUGGESTION,
            data: requestParam
          }, "suggest"));      
        }        
    };

    /**
     * 逆地址解析
     *
     * @param {Object} options 接口参数对象
     * 
     * 请求参数结构可以参考
     * http://lbs.qq.com/webservice_v1/guide-gcoder.html
     */
    reverseGeocoder(options) {
        var that = this;
        options = options || {};
        Utils.polyfillParam(options);
        var requestParam = {
            coord_type: options.coord_type || 5,
            get_poi: options.get_poi || 0,
            output: 'json',
            key: that.key
        };
        if (options.poi_options) {
            requestParam.poi_options = options.poi_options
        }

        var locationsuccess = function (result) {
            requestParam.location = result.latitude + ',' + result.longitude;
          if (options.sig) {
            requestParam.sig = Utils.getSig(requestParam, options.sig, 'reverseGeocoder');
          }
            wx.request(Utils.buildWxRequestConfig(options, {
                url: URL_GET_GEOCODER,
                data: requestParam
            }, 'reverseGeocoder'));
        };
        Utils.locationProcess(options, locationsuccess);
    };

    /**
     * 地址解析
     *
     * @param {Object} options 接口参数对象
     * 
     * 请求参数结构可以参考
     * http://lbs.qq.com/webservice_v1/guide-geocoder.html
     */
    geocoder(options) {
        var that = this;
        options = options || {};
        Utils.polyfillParam(options);

        if (Utils.checkParamKeyEmpty(options, 'address')) {
            return;
        }

        var requestParam = {
            address: options.address,
            output: 'json',
            key: that.key
        };

        //城市限定
        if (options.region) {
          requestParam.region = options.region;
        }

        if (options.sig) {
          requestParam.sig = Utils.getSig(requestParam, options.sig, 'geocoder');
        }

        wx.request(Utils.buildWxRequestConfig(options, {
            url: URL_GET_GEOCODER,
            data: requestParam
        },'geocoder'));
    };


    /**
     * 获取城市列表
     *
     * @param {Object} options 接口参数对象
     * 
     * 请求参数结构可以参考
     * http://lbs.qq.com/webservice_v1/guide-region.html
     */
    getCityList(options) {
        var that = this;
        options = options || {};
        Utils.polyfillParam(options);
        var requestParam = {
            output: 'json',
            key: that.key
        };

        if (options.sig) {
          requestParam.sig = Utils.getSig(requestParam, options.sig, 'getCityList');
        }

        wx.request(Utils.buildWxRequestConfig(options, {
            url: URL_CITY_LIST,
            data: requestParam
        },'getCityList'));
    };

    /**
     * 获取对应城市ID的区县列表
     *
     * @param {Object} options 接口参数对象
     * 
     * 请求参数结构可以参考
     * http://lbs.qq.com/webservice_v1/guide-region.html
     */
    getDistrictByCityId(options) {
        var that = this;
        options = options || {};
        Utils.polyfillParam(options);

        if (Utils.checkParamKeyEmpty(options, 'id')) {
            return;
        }

        var requestParam = {
            id: options.id || '',
            output: 'json',
            key: that.key
        };

        if (options.sig) {
          requestParam.sig = Utils.getSig(requestParam, options.sig, 'getDistrictByCityId');
        }

        wx.request(Utils.buildWxRequestConfig(options, {
            url: URL_AREA_LIST,
            data: requestParam
        },'getDistrictByCityId'));
    };

    /**
     * 用于单起点到多终点的路线距离(非直线距离)计算：
     * 支持两种距离计算方式：步行和驾车。
     * 起点到终点最大限制直线距离10公里。
     *
     * 新增直线距离计算。
     * 
     * @param {Object} options 接口参数对象
     * 
     * 请求参数结构可以参考
     * http://lbs.qq.com/webservice_v1/guide-distance.html
     */
    calculateDistance(options) {
        var that = this;
        options = options || {};
        Utils.polyfillParam(options);

        if (Utils.checkParamKeyEmpty(options, 'to')) {
            return;
        }

        var requestParam = {
            mode: options.mode || 'walking',
            to: Utils.location2query(options.to),
            output: 'json',
            key: that.key
        };

        if (options.from) {
          options.location = options.from;
        }

        //计算直线距离
        if(requestParam.mode == 'straight'){        
          var locationsuccess = function (result) {
            var locationTo = Utils.getEndLocation(requestParam.to);//处理终点坐标
            var data = {
              message:"query ok",
              result:{
                elements:[]
              },
              status:0
            };
            for (var i = 0; i < locationTo.length; i++) {
              data.result.elements.push({//将坐标存入
                distance: Utils.getDistance(result.latitude, result.longitude, locationTo[i].lat, locationTo[i].lng),
                duration:0,
                from:{
                  lat: result.latitude,
                  lng:result.longitude
                },
                to:{
                  lat: locationTo[i].lat,
                  lng: locationTo[i].lng
                }
              });            
            }
            var calculateResult = data.result.elements;
            var distanceResult = [];
            for (var i = 0; i < calculateResult.length; i++) {
              distanceResult.push(calculateResult[i].distance);
            }  
            return options.success(data,{
              calculateResult: calculateResult,
              distanceResult: distanceResult
            });
          };
          
          Utils.locationProcess(options, locationsuccess);
        } else {
          var locationsuccess = function (result) {
            requestParam.from = result.latitude + ',' + result.longitude;
            if (options.sig) {
              requestParam.sig = Utils.getSig(requestParam, options.sig, 'calculateDistance');
            }
            wx.request(Utils.buildWxRequestConfig(options, {
              url: URL_DISTANCE,
              data: requestParam
            },'calculateDistance'));
          };

          Utils.locationProcess(options, locationsuccess);
        }      
    };

  /**
   * 路线规划：
   * 
   * @param {Object} options 接口参数对象
   * 
   * 请求参数结构可以参考
   * https://lbs.qq.com/webservice_v1/guide-road.html
   */
  direction(options) {
    var that = this;
    options = options || {};
    Utils.polyfillParam(options);

    if (Utils.checkParamKeyEmpty(options, 'to')) {
      return;
    }

    var requestParam = {
      output: 'json',
      key: that.key
    };

    //to格式处理
    if (typeof options.to == 'string') {
      requestParam.to = options.to;
    } else {
      requestParam.to = options.to.latitude + ',' + options.to.longitude;
    }
    //初始化局部请求域名
    var SET_URL_DIRECTION = null;
    //设置默认mode属性
    options.mode = options.mode || MODE.driving;

    //设置请求域名
    SET_URL_DIRECTION = URL_DIRECTION + options.mode;

    if (options.from) {
      options.location = options.from;
    }

    if (options.mode == MODE.driving) {
      if (options.from_poi) {
        requestParam.from_poi = options.from_poi;
      }
      if (options.heading) {
        requestParam.heading = options.heading;
      }
      if (options.speed) {
        requestParam.speed = options.speed;
      }
      if (options.accuracy) {
        requestParam.accuracy = options.accuracy;
      }
      if (options.road_type) {
        requestParam.road_type = options.road_type;
      }
      if (options.to_poi) {
        requestParam.to_poi = options.to_poi;
      }
      if (options.from_track) {
        requestParam.from_track = options.from_track;
      }
      if (options.waypoints) {
        requestParam.waypoints = options.waypoints;
      }
      if (options.policy) {
        requestParam.policy = options.policy;
      }
      if (options.plate_number) {
        requestParam.plate_number = options.plate_number;
      }
    }

    if (options.mode == MODE.transit) {
      if (options.departure_time) {
        requestParam.departure_time = options.departure_time;
      }
      if (options.policy) {
        requestParam.policy = options.policy;
      }
    } 

    var locationsuccess = function (result) {
      requestParam.from = result.latitude + ',' + result.longitude;
      if (options.sig) {
        requestParam.sig = Utils.getSig(requestParam, options.sig, 'direction',options.mode);
      }
      wx.request(Utils.buildWxRequestConfig(options, {
        url: SET_URL_DIRECTION,
        data: requestParam
      }, 'direction'));
    };

    Utils.locationProcess(options, locationsuccess);
  }
};

module.exports = QQMapWX;