【地图】高德静态地图（页面展示和导出Word）
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【地图】高德静态地图（页面展示和导出Word）
小編覺得挺不錯的,現在分享給大家,幫大家做個參考.
目錄
一、前言
二、靜態地圖樣例
三、參數
四、頁面展示
五、導出Word
一、前言
有時我們會遇到這樣的需求：將信息標注到地圖上，然后將包含地圖和信息的圖片展示在頁面上或者導出到Word中。這樣我們就需要用到高德的靜態地圖API。
靜態地圖服務通過返回一張地圖圖片響應HTTP請求，使用戶能夠將高德地圖以圖片形式嵌入自己的網頁中。用戶可以指定請求的地圖位置、圖片大小、以及在地圖上添加覆蓋物，如標簽、標注、折線、多邊形。
二、靜態地圖樣例
1.單個點標注 https://restapi.amap.com/v3/staticmap?location=116.481485,39.990464&zoom=10&size=750*300&markers=mid,,A:116.481485,39.990464&key=自己申請的Key值2.多個點標注 https://restapi.amap.com/v3/staticmap?markers=mid,0xFF0000,A:116.37359,39.92437;116.47359,39.92437&key=自己申請的Key值3.自定義點標注 https://restapi.amap.com/v3/staticmap?markers=-1,https://a.amap.com/jsapi_demos/static/demo-center/icons/poi-marker-default.png,0:116.37359,39.92437&key=自己申請的Key值4.標簽 https://restapi.amap.com/v3/staticmap?location=116.48482,39.94858&zoom=10&size=400*400&labels=朝陽公園,2,0,16,0xFFFFFF,0x008000:116.48482,39.94858&key=自己申請的Key值5.點標注和標簽 https://restapi.amap.com/v3/staticmap?location=112.525878,37.811284&zoom=14&size=400*300&scale=2&markers=-1,https://cache.amap.com/lbs/static/cuntom_marker1.png,0:112.525878,37.811284&labels=測速人,2,0,16,0xFFFFFF,0x008000:112.525878,37.811284&key=自己申請的Key值6.線 https://restapi.amap.com/v3/staticmap?zoom=15&size=500*500&paths=10,0x0000ff,1,,:116.31604,39.96491;116.320816,39.966606;116.321785,39.966827;116.32361,39.966957&key=自己申請的Key值7.多邊形 https://restapi.amap.com/v3/staticmap?zoom=15&size=500*500&paths=2,0xFFFF00,0.5,0xFFFF00,0.5:116.31604,39.96491;116.320816,39.966606;116.321785,39.966827;116.32361,39.966957;116.31604,39.96491&key=自己申請的Key值沒有Key值的可以注冊一個高德開發者賬號申請Key值
三、參數
| key | 用戶唯一標識 | 用戶在高德地圖官網申請 | 必填 | 無 |
| location | 地圖中心點 | 中心點坐標。 規則：經度和緯度用","分隔 經緯度小數點后不得超過6位。 | 部分條件必填 | 無 |
| zoom | 地圖級別 | 地圖縮放級別:[1,17] | 必填 | 無 |
| size | 地圖大小 | 圖片寬度*圖片高度。最大值為1024*1024 | 可選 | 400*400 |
| scale | 普通/高清 | 1:返回普通圖； 2:調用高清圖，圖片高度和寬度都增加一倍，zoom也增加一倍（當zoom為最大值時，zoom不再改變）。 | 可選 | 1 |
| markers | 標注 | 使用規則見markers詳細說明，標注最大數10個 | 可選 | 無 |
| labels | 標簽 | 使用規則見labels詳細說明，標簽最大數10個 | 可選 | 無 |
| paths | 折線 | 使用規則見paths詳細說明，折線和多邊形最大數4個 | 可選 | 無 |
| traffic | 交通路況標識 | 底圖是否展現實時路況。 可選值： 0，不展現；1，展現。 | 可選 | 0 |
| sig | 數字簽名 | 數字簽名認證用戶必填 | 可選 | 無 |
高德靜態地圖API
四、頁面展示
現在我們設計好了圖片，需要把圖片展示到頁面上。
思路是獲取到高德接口返回的輸入流將其轉換為BASE64編碼的字符串。
String url = "https://restapi.amap.com/v3/staticmap?location=112.525878,37.811284&zoom=14&size=400*300&scale=2&markers=-1,https://cache.amap.com/lbs/static/cuntom_marker1.png,0:112.525878,37.811284&labels=測速人,2,0,16,0xFFFFFF,0x008000:112.525878,37.811284&key=自己申請的Key值";String base64 = getMapBase64(url);String urlBase64 = "data:image/png;base64," + base64;public String getMapBase64(String requestUrl) {try {URL url = new URL(requestUrl);URLConnection urlCon = url.openConnection();InputStream is = urlCon.getInputStream();byte[] buffer=new byte[1024];int len=0;ByteArrayOutputStream bos=new ByteArrayOutputStream();while((len=is.read(buffer))!=-1){bos.write(buffer,0,len);}bos.flush();BASE64Encoder encoder = new BASE64Encoder();return encoder.encode(bos.toByteArray());//返回Base64編碼過的字節數組字符串} catch (IOException e) {e.printStackTrace();return "error";}}將得到的urlBase64傳入img的src
五、導出Word
將id=wordMain的標簽中的內容導出成Word
1.導入 <script src="FileSaver.js"></script> <script src="jquery.wordexport.js"></script>2.調用其中方法 $('#wordMain').wordExport('Word月報'); #wordMain：需要導出模塊的id Word月報：導出之后的名字3.導出的word可以保留樣式，但是樣式需要寫到#wordMain的里面，寫在外面或者#wordMain上面都不會展示FileSaver.js
/* FileSaver.js* A saveAs() FileSaver implementation.* 1.3.2* 2016-06-16 18:25:19** By Eli Grey, http://eligrey.com* License: MIT* See https://github.com/eligrey/FileSaver.js/blob/master/LICENSE.md*//*global self */ /*jslint bitwise: true, indent: 4, laxbreak: true, laxcomma: true, smarttabs: true, plusplus: true *//*! @source http://purl.eligrey.com/github/FileSaver.js/blob/master/FileSaver.js */var saveAs = saveAs || (function (view) {"use strict";// IE <10 is explicitly unsupportedif (typeof view === "undefined" || typeof navigator !== "undefined" && /MSIE [1-9]\./.test(navigator.userAgent)) {return;}vardoc = view.document// only get URL when necessary in case Blob.js hasn't overridden it yet, get_URL = function () {return view.URL || view.webkitURL || view;}, save_link = doc.createElementNS("http://www.w3.org/1999/xhtml", "a"), can_use_save_link = "download" in save_link, click = function (node) {var event = new MouseEvent("click");node.dispatchEvent(event);}, is_safari = /constructor/i.test(view.HTMLElement), is_chrome_ios = /CriOS\/[\d]+/.test(navigator.userAgent), throw_outside = function (ex) {(view.setImmediate || view.setTimeout)(function () {throw ex;}, 0);}, force_saveable_type = "application/octet-stream"// the Blob API is fundamentally broken as there is no "downloadfinished" event to subscribe to, arbitrary_revoke_timeout = 1000 * 40 // in ms, revoke = function (file) {var revoker = function () {if (typeof file === "string") { // file is an object URLget_URL().revokeObjectURL(file);} else { // file is a Filefile.remove();}};setTimeout(revoker, arbitrary_revoke_timeout);}, dispatch = function (filesaver, event_types, event) {event_types = [].concat(event_types);var i = event_types.length;while (i--) {var listener = filesaver["on" + event_types[i]];if (typeof listener === "function") {try {listener.call(filesaver, event || filesaver);} catch (ex) {throw_outside(ex);}}}}, auto_bom = function (blob) {// prepend BOM for UTF-8 XML and text/* types (including HTML)// note: your browser will automatically convert UTF-16 U+FEFF to EF BB BFif (/^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(blob.type)) {return new Blob([String.fromCharCode(0xFEFF), blob], { type: blob.type });}return blob;}, FileSaver = function (blob, name, no_auto_bom) {if (!no_auto_bom) {blob = auto_bom(blob);}// First try a.download, then web filesystem, then object URLsvarfilesaver = this, type = blob.type, force = type === force_saveable_type, object_url, dispatch_all = function () {dispatch(filesaver, "writestart progress write writeend".split(" "));}// on any filesys errors revert to saving with object URLs, fs_error = function () {if ((is_chrome_ios || (force && is_safari)) && view.FileReader) {// Safari doesn't allow downloading of blob urlsvar reader = new FileReader();reader.onloadend = function () {var url = is_chrome_ios ? reader.result : reader.result.replace(/^data:[^;]*;/, 'data:attachment/file;');var popup = view.open(url, '_blank');if (!popup) view.location.href = url;url = undefined; // release reference before dispatchingfilesaver.readyState = filesaver.DONE;dispatch_all();};reader.readAsDataURL(blob);filesaver.readyState = filesaver.INIT;return;}// don't create more object URLs than neededif (!object_url) {object_url = get_URL().createObjectURL(blob);}if (force) {view.location.href = object_url;} else {var opened = view.open(object_url, "_blank");if (!opened) {// Apple does not allow window.open, see https://developer.apple.com/library/safari/documentation/Tools/Conceptual/SafariExtensionGuide/WorkingwithWindowsandTabs/WorkingwithWindowsandTabs.htmlview.location.href = object_url;}}filesaver.readyState = filesaver.DONE;dispatch_all();revoke(object_url);};filesaver.readyState = filesaver.INIT;if (can_use_save_link) {object_url = get_URL().createObjectURL(blob);setTimeout(function () {save_link.href = object_url;save_link.download = name;click(save_link);dispatch_all();revoke(object_url);filesaver.readyState = filesaver.DONE;});return;}fs_error();}, FS_proto = FileSaver.prototype, saveAs = function (blob, name, no_auto_bom) {return new FileSaver(blob, name || blob.name || "download", no_auto_bom);};// IE 10+ (native saveAs)if (typeof navigator !== "undefined" && navigator.msSaveOrOpenBlob) {return function (blob, name, no_auto_bom) {name = name || blob.name || "download";if (!no_auto_bom) {blob = auto_bom(blob);}return navigator.msSaveOrOpenBlob(blob, name);};}FS_proto.abort = function () { };FS_proto.readyState = FS_proto.INIT = 0;FS_proto.WRITING = 1;FS_proto.DONE = 2;FS_proto.error =FS_proto.onwritestart =FS_proto.onprogress =FS_proto.onwrite =FS_proto.onabort =FS_proto.onerror =FS_proto.onwriteend =null;return saveAs; }(typeof self !== "undefined" && self|| typeof window !== "undefined" && window|| this.content )); // `self` is undefined in Firefox for Android content script context // while `this` is nsIContentFrameMessageManager // with an attribute `content` that corresponds to the windowif (typeof module !== "undefined" && module.exports) {module.exports.saveAs = saveAs; } else if ((typeof define !== "undefined" && define !== null) && (define.amd !== null)) {define([], function () {return saveAs;}); }jquery.wordexport.js
if (typeof jQuery !== "undefined" && typeof saveAs !== "undefined") {(function ($) {$.fn.wordExport = function (fileName) {fileName = typeof fileName !== 'undefined' ? fileName : "jQuery-Word-Export";var statics = {mhtml: {/*top: "Mime-Version: 1.0\nContent-Base: " + location.href + "\nContent-Type: Multipart/related; boundary=\"NEXT.ITEM-BOUNDARY\";type=\"text/html\"\n\n--NEXT.ITEM-BOUNDARY\nContent-Type: text/html; charset=\"utf-8\"\nContent-Location: " + location.href + "\n\n<!DOCTYPE html>\n<html>\n_html_</html>",head: "<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\n<style>\n_styles_\n</style>\n</head>\n",body: "<body>_body_</body>"*/top: "Mime-Version: 1.0\nContent-Base: " + location.href + "\nContent-Type: Multipart/related; boundary=\"NEXT.ITEM-BOUNDARY\";type=\"text/html\"\n\n--NEXT.ITEM-BOUNDARY\nContent-Type: text/html; charset=\"utf-8\"\nContent-Location: " + location.href + "\n\n<!DOCTYPE html>\n" +"<html xmlns:v=\"urn:schemas-microsoft-com:vml\" xmlns:o=\"urn:schemas-microsoft-com:office:office\" xmlns:w=\"urn:schemas-microsoft-com:office:word\" xmlns:m=\"http://schemas.microsoft.com/office/2004/12/omml\" xmlns=\"http://www.w3.org/TR/REC-html40\">\n_html_</html>",head:"<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\n<style>\n_styles_\n</style>\n<!--[if gte mso 9]><xml><w:WordDocument><w:View>Print</w:View><w:TrackMoves>false</w:TrackMoves><w:TrackFormatting/><w:ValidateAgainstSchemas/><w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid><w:IgnoreMixedContent>false</w:IgnoreMixedContent><w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText><w:DoNotPromoteQF/><w:LidThemeOther>EN-US</w:LidThemeOther><w:LidThemeAsian>ZH-CN</w:LidThemeAsian><w:LidThemeComplexScript>X-NONE</w:LidThemeComplexScript><w:Compatibility><w:BreakWrappedTables/><w:SnapToGridInCell/><w:WrapTextWithPunct/><w:UseAsianBreakRules/><w:DontGrowAutofit/><w:SplitPgBreakAndParaMark/><w:DontVertAlignCellWithSp/><w:DontBreakConstrainedForcedTables/><w:DontVertAlignInTxbx/><w:Word11KerningPairs/><w:CachedColBalance/><w:UseFELayout/></w:Compatibility><w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel><m:mathPr><m:mathFont m:val=\"Cambria Math\"/><m:brkBin m:val=\"before\"/><m:brkBinSub m:val=\"--\"/><m:smallFrac m:val=\"off\"/><m:dispDef/><m:lMargin m:val=\"0\"/> <m:rMargin m:val=\"0\"/><m:defJc m:val=\"centerGroup\"/><m:wrapIndent m:val=\"1440\"/><m:intLim m:val=\"subSup\"/><m:naryLim m:val=\"undOvr\"/></m:mathPr></w:WordDocument></xml><![endif]--></head>\n",body:"<body>_body_</body>"}};var options = {maxWidth: 624};// Clone selected element before manipulating itvar markup = $(this).clone();// Remove hidden elements from the outputmarkup.each(function () {var self = $(this);if (self.is(':hidden'))self.remove();});// Embed all images using Data URLsvar images = Array();var img = markup.find('img');if(WordVersionType == 0){//office為高版本img = new Image();}for (var i = 0; i < img.length; i++) {// Calculate dimensions of output imagevar w = Math.min(img[i].width, options.maxWidth);var h = img[i].height * (w / img[i].width);// Create canvas for converting image to data URLvar canvas = document.createElement("CANVAS");canvas.width = w;canvas.height = h;// Draw image to canvasvar context = canvas.getContext('2d');context.drawImage(img[i], 0, 0, w, h);// Get data URL encoding of imagevar uri = canvas.toDataURL("image/png/jpg");$(img[i]).attr("src", img[i].src);img[i].width = w;img[i].height = h;// Save encoded image to arrayimages[i] = {type: uri.substring(uri.indexOf(":") + 1, uri.indexOf(";")),encoding: uri.substring(uri.indexOf(";") + 1, uri.indexOf(",")),location: $(img[i]).attr("src"),data: uri.substring(uri.indexOf(",") + 1)};}// Prepare bottom of mhtml file with image datavar mhtmlBottom = "\n";for (var i = 0; i < images.length; i++) {mhtmlBottom += "--NEXT.ITEM-BOUNDARY\n";mhtmlBottom += "Content-Location: " + images[i].location + "\n";mhtmlBottom += "Content-Type: " + images[i].type + "\n";mhtmlBottom += "Content-Transfer-Encoding: " + images[i].encoding + "\n\n";mhtmlBottom += images[i].data + "\n\n";}mhtmlBottom += "--NEXT.ITEM-BOUNDARY--";//TODO: load css from included stylesheet//var styles=' /* Font Definitions */@font-face{font-family:宋體;panose-1:2 1 6 0 3 1 1 1 1 1;mso-font-alt:SimSun;mso-font-charset:134;mso-generic-font-family:auto;mso-font-pitch:variable;mso-font-signature:3 680460288 22 0 262145 0;} @font-face{font-family:"Cambria Math";panose-1:2 4 5 3 5 4 6 3 2 4;mso-font-charset:1;mso-generic-font-family:roman;mso-font-format:other;mso-font-pitch:variable;mso-font-signature:0 0 0 0 0 0;} @font-face{font-family:"\@宋體";panose-1:2 1 6 0 3 1 1 1 1 1;mso-font-charset:134;mso-generic-font-family:auto;mso-font-pitch:variable;mso-font-signature:3 680460288 22 0 262145 0;}/* Style Definitions */p.MsoNormal, li.MsoNormal, div.MsoNormal{mso-style-unhide:no;mso-style-qformat:yes;mso-style-parent:"";margin:0cm;margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:14.0pt;font-family:宋體;mso-bidi-font-family:宋體;}p.MsoHeader, li.MsoHeader, div.MsoHeader{mso-style-noshow:yes;mso-style-priority:99;mso-style-link:"頁眉 Char";margin:0cm;margin-bottom:.0001pt;text-align:center;mso-pagination:widow-orphan;layout-grid-mode:char;font-size:9.0pt;font-family:宋體;mso-bidi-font-family:宋體;}p.MsoFooter, li.MsoFooter, div.MsoFooter{mso-style-noshow:yes;mso-style-priority:99;mso-style-link:"頁腳 Char";margin:0cm;margin-bottom:.0001pt;mso-pagination:widow-orphan;layout-grid-mode:char;font-size:9.0pt;font-family:宋體;mso-bidi-font-family:宋體;}p.MsoAcetate, li.MsoAcetate, div.MsoAcetate{mso-style-noshow:yes;mso-style-priority:99;mso-style-link:"批注框文本 Char";margin:0cm;margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:9.0pt;font-family:宋體;mso-bidi-font-family:宋體;}span.Char{mso-style-name:"頁眉 Char";mso-style-noshow:yes;mso-style-priority:99;mso-style-unhide:no;mso-style-locked:yes;mso-style-link:頁眉;font-family:宋體;mso-ascii-font-family:宋體;mso-fareast-font-family:宋體;mso-hansi-font-family:宋體;}span.Char0{mso-style-name:"頁腳 Char";mso-style-noshow:yes;mso-style-priority:99;mso-style-unhide:no;mso-style-locked:yes;mso-style-link:頁腳;font-family:宋體;mso-ascii-font-family:宋體;mso-fareast-font-family:宋體;mso-hansi-font-family:宋體;}span.Char1{mso-style-name:"批注框文本 Char";mso-style-noshow:yes;mso-style-priority:99;mso-style-unhide:no;mso-style-locked:yes;mso-style-link:批注框文本;font-family:宋體;mso-ascii-font-family:宋體;mso-fareast-font-family:宋體;mso-hansi-font-family:宋體;}p.msochpdefault, li.msochpdefault, div.msochpdefault{mso-style-name:msochpdefault;mso-style-unhide:no;mso-margin-top-alt:auto;margin-right:0cm;mso-margin-bottom-alt:auto;margin-left:0cm;mso-pagination:widow-orphan;font-size:10.0pt;font-family:宋體;mso-bidi-font-family:宋體;}span.msonormal0{mso-style-name:msonormal;mso-style-unhide:no;}.MsoChpDefault{mso-style-type:export-only;mso-default-props:yes;font-size:10.0pt;mso-ansi-font-size:10.0pt;mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-font-kerning:0pt;}/* Page Definitions */ @page WordSection1{size:595.3pt 841.9pt;margin:72.0pt 90.0pt 72.0pt 90.0pt;mso-header-margin:42.55pt;mso-footer-margin:49.6pt;mso-paper-source:0;}div.WordSection1{page:WordSection1;}';var styles = "";// Aggregate parts of the file togethervar fileContent = statics.mhtml.top.replace("_html_", statics.mhtml.head.replace("_styles_", styles) + statics.mhtml.body.replace("_body_", markup.html())) + mhtmlBottom;// Create a Blob with the file contentsvar blob = new Blob([fileContent], {type: "application/msword;charset=utf-8"});saveAs(blob, fileName + ".doc");};})(jQuery); } else {if (typeof jQuery === "undefined") {console.error("jQuery Word Export: missing dependency (jQuery)");}if (typeof saveAs === "undefined") {console.error("jQuery Word Export: missing dependency (FileSaver.js)");} }總結
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