Mapbox GL JS外部geojson数据不会加载，但是将geojson数据复制到html代码中是可行的

在mapbox GL JS map.addSource上，将数据指向与html文件位于同一目录中的外部geojson文件时，数据不会显示。但是，当我将geojson数据直接复制到html文件中时，它确实出现了。我不认为我的路径是错误的。geojson和heatmap.html在同一个文件夹中，我使用的是Ubuntu 18.04。我希望将geojson数据保存在外部

我正在努力学习本教程：

这不起作用：

map.on'load'，函数{ map.addSource“树”{ 键入：“geojson”， 数据：'./trees.geojson' }; 这项工作：

map.on'load'，函数{ map.addSource“树”{ 键入：“geojson”， 数据：{type:FeatureCollection，features:[{type:Feature，properties:{dbh:0}，几何：{type:Point，坐标：[-79.91746,40.44356]}，{type:Feature，properties:{dbh:12}，几何：{type:Point，坐标：[-79.94606,40.44961]}，{type:Feature dbh:6}，几何：{type:Point，坐标：{-79.96474,40.46283]}，属性：{dbh:2}，几何：{type:Point，坐标：[-80.00949,40.42532]}，{type:Feature，properties:{dbh:12}，几何：{type:Point，坐标：[-79.93531,40.42282]}，{type:Feature，properties:{dbh:12}，几何：{type:Point，坐标：[-79.91199，40.37286]}，{type:Feature dbh:10}，几何：{type:Point 244.434]}，{type:Feature，properties:{dbh:-1}，geometry:{type:Point，座标：[-79.92158,40.43892]}，{type:Feature，properties:{dbh:17}，geometry:{type:Point，座标：[-79.97294,40.40908]}，{type:Feature properties:{dbh:13}，geometry:{type:Point，座标：[-79.97291,40.42896]}，{type:Feature dbh:9}，座标：[-80.05708,40.45932]}，{type:Feature，properties:{dbh:10}，geometry:{type:Point，座标：[-79.91069,40.37747]}，{type:Feature，properties:{dbh:4}，geometry:{type:Point，座标：[-79.98257,40.43154]}，{type:Feature dbh:5}，geometry:{type:Point，座标：[-79.99177 40.42093}，座标：[-type:Point dbh:{类型：点，坐标：[-80.02488,40.41999]}，{类型：特征，属性：{dbh:1}，几何：{类型：点，坐标：[-79.99531,40.41504]}，{类型：特征，属性：{dbh:8}，几何：{类型：点，坐标：[-80.0148,40.43467]}，{类型：特征，属性：{dbh:6}，几何：{类型：点，坐标：[-80.029,40.416]}，特征：{dbh:1}，几何：{type:Point，坐标：[-80.01647,40.40107]}，{type:Feature，properties:{dbh:0}，几何：{type:Point，坐标：[-80.02872,40.39468]}，{type:Feature，properties:{dbh:16}，几何：{type:Point，坐标：[-80.00902,40.38418]}，{type:Feature，properties:{dbh:22}，几何：{type:Point，坐标：[-80.05166,4340}，{type:Feature，properties:{dbh:7}，geometry:{type:Point，座标：[-80.0468,40.43461]}，{type:Feature，properties:{dbh:11}，geometry:{type:Point，座标：[-80.03639,40.44505]}，{type:Feature，座标：[-80.03393,40.43546]}，geometry:{type:Point[-80.05113,40.43404]}，{type:Feature，properties:{dbh:2}，geometry:{type:Point，坐标：[-79.93404,40.47953]}，{type:Feature，properties:{dbh:-1}，geometry:{type:Point，坐标：[-79.88148,40.45954]}，{type:Feature dbh:10}，geometry:{type:Point，坐标：[-79.9201,40.47591]}，geometry:{type:dbh:{类型：点，坐标：[79.92554,40.46622]}，{类型：特征，属性：{dbh:10}，几何：{类型：点，坐标：[79.94818,40.4595]}，{类型：特征，属性：{dbh:28}，几何：{类型：点，坐标：[-79.93549,40.48189]}，{类型：特征，属性：{dbh:23}，几何：{类型：点，坐标：[-79.898,40.888,40}，属性：{dbh:29}，{，几何：{类型：点，坐标：[-79.94479,40.40905]}，{类型：特征，属性：{dbh:-1}，几何：{类型：点，坐标：[-80.01717,40.46426]}，{类型：特征，属性：{dbh:9}，几何：{类型：点，坐标：[-80.02638,40.46093]}，{类型：特征，属性：{dbh:22}，几何：{类型：点，坐标：{79.93369}，{type:Feature，properties:{dbh:11}，geometry:{type:Point，座标：[-79.92366,40.42568]}，{type:Feature，properties:{dbh:2}，geometry:{type:Point，座标：[-79.9568,40.44844]}，几何：{type:Feature，座标：[-79.9489,40.45985]}，几何：{type:Feature dbh:2}，座标：{type:Point[-79.91629,40.4733]}，{type:Feature，properties:{dbh:19}，geometry:{type:Point，座标：[-79.90083,40.42244]}，{type:Feature，properties:{dbh:2}，geometry:{type:Point，座标：[-79.96904,40.44207]}，{type:Feature dbh:3}，geometry:{type:Point，座标：[-80.00736,40.4574]}，geometry:12}{类型：点，坐标：[-79.93248,40.46246]}，{类型：特征，属性：{dbh:9}，几何：{类型：点，坐标：[-79.93568,40.48163]}，{类型：特征，属性：{dbh:15}，几何：{类型：点，坐标：[ -79.92572,40.46593]}，{type:Feature，properties:{dbh:-1}，geometry:{type:Point，座标：[-79.93204,40.46653]}，{type:Feature，properties:{dbh:10}，geometry:{type:Point，座标：[-79.88447,40.45094]}，{type:Feature dbh:19}，geometry:{type:Point，座标：[-79.92534,40.42169 type:Point，座标：[-79.92534,40.42169，}，geometry:{dbh:36}{类型：点，坐标：[79.90062,40.42502]}，{类型：特征，属性：{dbh:10}，几何：{类型：点，坐标：[-79.94987,40.4215]}，{类型：特征，属性：{dbh:8}，几何：{类型：点，坐标：[-79.94745,40.4583]}，{类型：特征，属性：{dbh:5}，几何：{类型：点，坐标：[-79.94746,40.448]}，属性：{dbh:11}，几何：{type:Point，坐标：[-79.94136,40.40568]}，{type:Feature，properties:{dbh:3}，几何：{type:Point，坐标：[-79.98904,40.46744]}，{type:Feature，properties:{dbh:9}，几何：{type:Point，坐标：[-80.01252,40.45821]}，{type:Feature dbh:15}，几何：{type:Point，坐标：[-79.89635]}，{type:Feature，properties:{dbh:32}，geometry:{type:Point，座标：[-79.94086,40.4806]}，{type:Feature，properties:{dbh:20}，geometry:{type:Point，座标：[-79.92815,40.44201]}，{type:Feature，座标：[-79.91607,40.42572]}，geometry:{type:Feature dbh:11}，座标：{type:Point[-79.94567,40.40739]}，{type:Feature，properties:{dbh:10}，geometry:{type:Point，坐标：[-79.92082,40.45771]}，{type:Feature，properties:{dbh:-1}，geometry:{type:Point，坐标：[-80.02301,40.45373]}，{type:Feature dbh:26}，geometry:{type:Point，坐标：[-79.90841,40.4471]}，geometry:type:Point{类型：点，坐标：[79.93042,40.45842]}，{类型：特征，属性：{dbh:4}，几何：{类型：点，坐标：[79.9858,40.44431]}，{类型：特征，属性：{dbh:7}，几何：{类型：点，坐标：[-80.01556,40.48392]}，{类型：特征，属性：{dbh:19}，几何：{类型：点，坐标：[-79.929,40}，属性：{dbh:18}，几何：{类型：点，坐标：[-79.90916,40.43699]}，{类型：特征，属性：{dbh:18}，几何：{类型：点，坐标：[-79.93322,40.43706]}，{类型：特征，属性：{dbh:6}，几何：{类型：点，坐标：[-79.93512,40.42297]}，{类型：特征，属性：{dbh:11}，几何：{类型：点，坐标：[-79.948]{dbh:5}，几何：{type:Point，座标：[79.96532,40.46236]}，{type:Feature，properties:{dbh:9}，几何：{type:Point，座标：[-80.02626,40.46095]}，{type:Feature，properties:{dbh:28}，几何：{type:Point，座标：[-79.89643,40.4709]}，{type:Feature，properties:{dbh:33}，几何：{type:Point 89923,139}，{type:Feature，properties:{dbh:23}，geometry:{type:Point，座标：[-79.93075,40.4537]}，{type:Feature，properties:{dbh:27}，geometry:{type:Point，座标：[-79.97275,40.4092]}，{type:Feature，座标：[-79.97291,40.42903]}，geometry:{type:Feature dbh:9}，座标：{type:Point[-80.05702,40.45931]}，{type:Feature，properties:{dbh:21}，geometry:{type:Point，坐标：[-79.91458,40.37661]}，{type:Feature，properties:{dbh:3}，geometry:{type:Point，坐标：[-79.98257,40.43163]}，{type:Feature dbh:12}，geometry:{type:Point，坐标：[-79.99182,40.42098]}，geometry:{type:dbh:8}{type:Point，坐标：[-80.02467,40.42132]}，{type:Feature，properties:{dbh:3}，geometry:{type:Point，坐标：[-79.99538,40.41503]}，{type:Feature，properties:{dbh:11}，geometry:{type:Point，坐标：[-80.01479,40.43473]}，geometry:{type:Feature dbh:10}，geometry:{type:Point，坐标：[-80.0249,40.455}，properties:{dbh:，几何：{type:Point，坐标：[-80.0169,40.40108]}，{type:Feature，properties:{dbh:30}，几何：{type:Point，坐标：[-80.02882,40.39472]}，{type:Feature，properties:{dbh:26}，几何：{type:Point，坐标：[-80.05036,40.43446]}，{type:Feature dbh:7}，几何：{type:Point，坐标：[-80.04684]}，{type:Feature，properties:{dbh:12}，geometry:{type:Point，座标：[-80.03631,40.4451]}，{type:Feature，properties:{dbh:19}，geometry:{type:Point，座标：[-80.05068,40.43413]}，{type:Feature properties:{dbh:16}，geometry:{type:Point，座标：[-79.95617,40.46891]}，{type:Feature dbh:8}，座标：[-80.03394,40.43543]}，{type:Feature，properties:{dbh:-1}，geometry:{type:Point，座标：[-79.88155,40.45938]}，{type:Feature，properties:{dbh:10}，geometry:{type:Point，座标：[-79.92019,40.47594]}，{type:Feature dbh:-1}，geometry:{type:Point type:Point座标：[-79.89742,40.46995]}，geometry:{type:dbh:23}{类型：点，坐标：[-80.01727,40.46422]}} };

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您的路径应该是trees.geojson，没有./。您可以通过打开调试控制台的“网络”选项卡获得更多信息。如果出现404错误，则确实存在路径错误。

是否正在运行fr

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本地web服务器？可能是浏览器限制，请检查浏览器控制台。