在uniapp H5项目中使用腾讯地图sdk
前言
这里主要针对的是H5，小程序或app都有现成的sdk可以使用；
本人是用uniapp在做微信公众号的h5页面，其中需要把经纬度信息转化成文字描述的位置信息，在腾讯地图开发平台上申请了一个key，然后下载了一个微信小程序使用的微信小程序JavaScriptSDK v1.2但是这个sdk是为小程序设计的，所以在vue的h5中使用会有跨域问题，所以结合vue-jsonp对这个sdk做了一下修改，可以直接放入h5中使用。
此方法不止在uniapp中可以使用，在所有H5项目中都可
说明
关于sdk怎么修改的我就不多说了，想了解的自己看源码，可以下载上面提供的原版对比查看，简单描述一句就是把sdk内使用的wx对象重写，替换了里面的request方法，使用vue-jsonp完成跨域。
安装vue-jsonp
既然是要使用vue-jsonp，那就要先安装
npm install vue-jsonp
在main.js中引入
import { VueJsonp } from 'vue-jsonp'
Vue.use(VueJsonp)
导入代码
下面是我已经修改好的代码，复制到一个js文件放到自己的项目内，例如：qqmap-wx-jssdk.js
var vm = ''
/**
* 这里是重写部分
*/
var wx = {
request(obj){
obj.data.output = 'jsonp'
vm.$jsonp(obj.url,obj.data)
.then(json => {
if(json.status == 0){
obj.success(json)
}else {
obj.fail(json)
}
})
.catch(err => {
obj.fail(err)
})
}
}
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...
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