将数据加载到Google Map API

Question

我需要从台式机上的文本文件中读取lat和LNG及其他参数，以读取大学项目中的Google Map Java脚本API。

Answer 1

You can do it by using HTML5 FileAPI . But it is neccessary, that u or user should select the file for reading. After uploading file, remains only to parse the necessary variables in the correct manner. Short example:

 function readSingleFile(e) { var file = e.target.files[0]; if (!file) { return; } var reader = new FileReader(); reader.onload = function(e) { var contents = e.target.result; displayContents(contents); }; reader.readAsText(file); } function displayContents(contents) { var element = document.getElementById('file-content'); element.innerHTML = contents; } document.getElementById('file-input') .addEventListener('change', readSingleFile, false); 

 <input type="file" id="file-input" /> <h3>Contents of the file:</h3> <pre id="file-content"></pre>