根据腾讯地图API，以图文的方式一步一步的来说明如何获取详细的位置信息数据。具体参考腾讯地图Webservice API的简介。腾讯地图WebService API
第一步：申请开发者密钥（key）申请密钥
我选择的应用类型为浏览器类型（调用Javascript API、JSONP调用WebService API、静态图API等）。
填写完成提交好既可以获取属于自己的Key。
第二步：Key获取到了，下面就要通过ajax请求获取位置信息了
首先跟大家说一下此接口都可以获取那些信息，以及需要传哪些参数。简单来说就是输入坐标返回地理位置信息和附近poi列表（POI是“Point of Interest”的缩写，可以翻译成“信息点”，每个POI包含四方面信息，名称、类别、经度纬度、附近的酒店饭店商铺等信息）。
1 { 2 "status": 0, 3 "message": "query ok", 4 "result": { 5 "location": { 6 "lat": 39.984154, 7 "lng": 116.30749 8 }, 9 "address": "北京市海淀区彩和坊路北四环西路66号", 10 "formatted_addresses": { 11 "recommend": "海淀区北四环西路66号中国技术交易大厦内", 12 "rough": "海淀区中关村" 13 }, 14 "address_component": { 15 "nation": "中国", 16 "province": "北京市", 17 "city": "北京市", 18 "district": "海淀区", 19 "street": "彩和坊路", 20 "street_number": "北四环西路66号" 21 }, 22 "ad_info": { 23 "adcode": "110108", 24 "name": "中国,北京市,北京市,海淀区", 25 "location": { 26 "lat": 39.984154, 27 "lng": 116.307487 28 }, 29 "nation": "中国", 30 "province": "北京市", 31 "city": "北京市", 32 "district": "海淀区" 33 }, 34 "address_reference": { 35 "crossroad": { 36 "title": "彩和坊路/北四环西路辅路(路口)", 37 "location": { 38 "lat": 39.985001, 39 "lng": 116.308113 40 }, 41 "_distance": 104.2, 42 "_dir_desc": "西南" 43 }, 44 "street": { 45 "title": "彩和坊路", 46 "location": { 47 "lat": 39.984154, 48 "lng": 116.308098 49 }, 50 "_distance": 49.1, 51 "_dir_desc": "西" 52 }, 53 "famous_area": { 54 "title": "中关村", 55 "location": { 56 "lat": 39.984119, 57 "lng": 116.307503 58 }, 59 "_distance": 0, 60 "_dir_desc": "内" 61 }, 62 "town": { 63 "title": "海淀街道", 64 "location": { 65 "lat": 39.984154, 66 "lng": 116.307487 67 }, 68 "_distance": 0, 69 "_dir_desc": "内" 70 }, 71 "street_number": { 72 "title": "北四环西路66号", 73 "location": { 74 "lat": 39.984119, 75 "lng": 116.307503 76 }, 77 "_distance": 0, 78 "_dir_desc": "" 79 }, 80 "landmark_l2": { 81 "title": "中国技术交易大厦", 82 "location": { 83 "lat": 39.984154, 84 "lng": 116.307487 85 }, 86 "_distance": 0, 87 "_dir_desc": "内" 88 } 89 }, 90 "poi_count": 10, 91 "pois": [ 92 { 93 "id": "3629720141162880123", 94 "title": "中国技术交易大厦", 95 "address": "北四环西路66号", 96 "category": "房产小区;商务楼宇", 97 "location": { 98 "lat": 39.984154, 99 "lng": 116.307487 100 }, 101 "ad_info": { 102 "adcode": "110108", 103 "province": "北京市", 104 "city": "北京市", 105 "district": "海淀区" 106 }, 107 "_distance": 0, 108 "_dir_desc": "内" 109 }, 110 { 111 "id": "12925244666643621769", 112 "title": "中国技术交易大厦B座", 113 "address": "北京市海淀区北四环西路66号", 114 "category": "房产小区;商务楼宇", 115 "location": { 116 "lat": 39.984112, 117 "lng": 116.307587 118 }, 119 "ad_info": { 120 "adcode": "110108", 121 "province": "北京市", 122 "city": "北京市", 123 "district": "海淀区" 124 }, 125 "_distance": 9.7, 126 "_dir_desc": "" 127 }, 128 { 129 "id": "2845372667492951071", 130 "title": "中国技术交易大厦A座", 131 "address": "北京市海淀区北四环西路66号中国技术交易大厦", 132 "category": "房产小区;商务楼宇", 133 "location": { 134 "lat": 39.984112, 135 "lng": 116.307587 136 }, 137 "ad_info": { 138 "adcode": "110108", 139 "province": "北京市", 140 "city": "北京市", 141 "district": "海淀区" 142 }, 143 "_distance": 9.7, 144 "_dir_desc": "" 145 }, 146 { 147 "id": "12017569646070509084", 148 "title": "中关村SOHOA区", 149 "address": "北京市海淀区海淀北二街8号中关村SOHO", 150 "category": "房产小区;商务楼宇", 151 "location": { 152 "lat": 39.983452, 153 "lng": 116.310143 154 }, 155 "ad_info": { 156 "adcode": "110108", 157 "province": "北京市", 158 "city": "北京市", 159 "district": "海淀区" 160 }, 161 "_distance": 239.6, 162 "_dir_desc": "西" 163 }, 164 { 165 "id": "206863847875503767", 166 "title": "中关村SOHOB区", 167 "address": "北京市海淀区海淀北二街8号", 168 "category": "房产小区;商务楼宇", 169 "location": { 170 "lat": 39.983452, 171 "lng": 116.310143 172 }, 173 "ad_info": { 174 "adcode": "110108", 175 "province": "北京市", 176 "city": "北京市", 177 "district": "海淀区" 178 }, 179 "_distance": 239.6, 180 "_dir_desc": "西" 181 }, 182 { 183 "id": "2586789338541507151", 184 "title": "大恒科技大厦南座", 185 "address": "北京市海淀区苏州街3号", 186 "category": "房产小区;商务楼宇", 187 "location": { 188 "lat": 39.9827, 189 "lng": 116.305359 190 }, 191 "ad_info": { 192 "adcode": "110108", 193 "province": "北京市", 194 "city": "北京市", 195 "district": "海淀区" 196 }, 197 "_distance": 243.2, 198 "_dir_desc": "东北" 199 }, 200 { 201 "id": "10411172112248966185", 202 "title": "大恒科技大厦北座", 203 "address": "北京市海淀区苏州街3号", 204 "category": "房产小区;商务楼宇", 205 "location": { 206 "lat": 39.982422, 207 "lng": 116.305313 208 }, 209 "ad_info": { 210 "adcode": "110108", 211 "province": "北京市", 212 "city": "北京市", 213 "district": "海淀区" 214 }, 215 "_distance": 267.5, 216 "_dir_desc": "东北" 217 }, 218 { 219 "id": "3467897955375836486", 220 "title": "西屋国际A座", 221 "address": "北京市海淀区苏州街12号", 222 "category": "房产小区;住宅区;住宅小区", 223 "location": { 224 "lat": 39.98093, 225 "lng": 116.30658 226 }, 227 "ad_info": { 228 "adcode": "110108", 229 "province": "北京市", 230 "city": "北京市", 231 "district": "海淀区" 232 }, 233 "_distance": 367.1, 234 "_dir_desc": "东北" 235 }, 236 { 237 "id": "10159988224873792278", 238 "title": "西屋国际F座", 239 "address": "北京市海淀区苏州街12号", 240 "category": "房产小区;住宅区;住宅小区", 241 "location": { 242 "lat": 39.980793, 243 "lng": 116.307381 244 }, 245 "ad_info": { 246 "adcode": "110108", 247 "province": "北京市", 248 "city": "北京市", 249 "district": "海淀区" 250 }, 251 "_distance": 374.2, 252 "_dir_desc": "东北" 253 }, 254 { 255 "id": "1833965334134367830", 256 "title": "西屋国际B座", 257 "address": "北京市海淀区苏州街12号", 258 "category": "房产小区;住宅区;住宅小区", 259 "location": { 260 "lat": 39.980759, 261 "lng": 116.306427 262 }, 263 "ad_info": { 264 "adcode": "110108", 265 "province": "北京市", 266 "city": "北京市", 267 "district": "海淀区" 268 }, 269 "_distance": 388.6, 270 "_dir_desc": "东北" 271 } 272 ] 273 } 274 }
以上就是返回的参数信息，具体的参数介绍：http://lbs.qq.com/webservice_v1/guide-gcoder.html
下面呢，就写一下如何发送ajxa请求，当然这个请求是jsonp的跨域请求。
1 var data={ 2 location:"39.984154,116.307490", 3 /*换成自己申请的key*/ 4 key:"OB4BZ-D4W3U-B7VVO-4PJWW-6TKDJ-WPB77", 5 get_poi:0 6 } 7 var url="http://apis.map.qq.com/ws/geocoder/v1/?"; 8 data.output="jsonp"; 9 $.ajax({ 10 type:"get", 11 dataType:'jsonp', 12 data:data, 13 jsonp:"callback", 14 jsonpCallback:"QQmap", 15 url:url, 16 success:function(json){ 17 /*json对象转为文本 var aToStr=JSON.stringify(a);*/ 18 var toStr = JSON.stringify(json); 19 toStr=getFormatJsonStrFromString(toStr); 20 /*调用业务处理程序*/ 21 suggestion_example&&suggestion_example($show,url_list,toStr); 22 }, 23 error : function(err){alert("服务端错误，请刷新浏览器后重试")} 24 25 }
这样在跨域得到的数据就可以在ajax请求的【json】中获取了。
