关于 webpy跨域解决方法的一点总结

python3.6.1代码如下：

服务代码：

'''
此代码实现了：
arcgis api for js 3.25 服务的本地化。
此代码 + arcgis_js_v325_sdk 文件夹是一套。

arcgis api for js 的其他版本，也一样。

启动代码：
python v325.py

测试URL:
http://localhost:8080/arcgis_js_v326_sdk/arcgis_js_api/library/3.26/3.26/dijit/themes/nihilo/nihilo.css
http://localhost:8080/arcgis_js_v326_sdk/arcgis_js_api/library/3.26/3.26/esri/css/esri.css
http://localhost:8080/arcgis_js_v326_sdk/arcgis_js_api/library/3.26/3.26/init.js

http://localhost:8080/arcgis_js_v325_sdk/arcgis_js_api/library/3.25/3.25/esri/css/esri.css
http://localhost:8080/arcgis_js_v325_sdk/arcgis_js_api/library/3.25/3.25/init.js

http://localhost:8080/
http://localhost:8080/2
'''
import web
urls = (
'/', 'getJSON',
'/2', 'getJSON2',
'/(.*)', 'retrieve'
)

class retrieve:
def GET(self, filename):
file = 'C:/Users/asus/Desktop/gaoshengjie/localServers/' + filename
f = open(file, 'rb').read()
return f

class getJSON:
def GET(self):
'''
此方法适用于，前端类似这样的请求：
$.getJSON("http://localhost:8080/", function (data) {
// data, 即请求json文件的内容，且data为json格式。
});
'''
web.header("Access-Control-Allow-Origin", "*")
file = 'C:/Users/asus/Desktop/gaoshengjie/localServers/config2d.json'
f = open(file, 'rb').read()
return f

class getJSON2:
'''
此类中两种方法，适用于，首先有OPTIONS请求，然后有GET请求的场景。
前端请求类似这样：
// var configfile = haoutil.system.getRequestByName("config", "config.json");
// var configfile = "./config.json";

mars3d.createMap({
id: 'cesiumContainer',
// url: configfile + "?time=20180616",
url: "http://localhost:8080/2?time=20180616",
//infoBox: false, //是否显示点击要素之后显示的信息【也可以在config.json中配置】
//shadows : true,

layerToMap: layerToMap,
success: function (_viewer, gisdata, jsondata) { //地图成功加载完成后执行
viewer = _viewer;
configdata = jsondata;

layerDetails = jsondata.map3d

mars3d.widget.init(_viewer, jsondata.widget);

loaderOK();
tree_3d();

var request = haoutil.system.getRequest();

//如果有xyz传参，进行定位
if (haoutil.isutil.isNotNull(request.x) &&
haoutil.isutil.isNotNull(request.y)) {
viewer.mars.centerAt(request, {
duration: 0,
isWgs84: true
});
}

entityentity = _viewer.entities.add({
position: Cesium.Cartesian3.fromDegrees(117.179085, 39.058676, 20),
billboard: {
image: './img/marker/mark1.png',
pixelOffset: new Cesium.Cartesian2(0, 0), // default: (0, 0)
scale: 0.5 // default: 1.0
}
});
entityentity.popup = {
html: '<div class="addmarker-popup-titile">添加标记</div><div class="addmarker-popup-content" ><form >' +
'<div class="form-group"> <label for="addmarker_attr_name">名称</label><input type="text" id="addmarker_attr_name" class="form-control" value="' + '' + '" placeholder="请输入标记名称" /> </div>' +
'<div class="form-group"> <label for="addmarker_attr_remark">备注</label><textarea id="addmarker_attr_remark" class="form-control" rows="3" style="resize: none;" placeholder="请输入备注（可选填）" >' + '' + '</textarea></div>' +
'<div class="form-group" style="text-align: center;"><input type="button" class="btn btn-primary btn-sm" value="保存" onclick="" />' +
'  <input type="button" class="btn btn-danger btn-sm" value="删除" onclick="" /></div>' +
'</form></div>', //可以是任意html
anchor: [0, -25]
};

entityentity.tooltip = {
html: '<div class="addmarker-popup-titile">我的标记</div><div class="addmarker-popup-content" ><form >' +
'<div class="form-group"><label>名称</label>：' + '测绘院' + '</div>' +
'<div class="form-group"><label>备注</label>：' + '天津' + '</div>' +
'</form></div>', //可以是任意html
anchor: [0, -25]
};

initWork(_viewer);

// //开场动画
viewer.mars.openFlyAnimation(function () {
//动画播放完成后回调

//如果url传参，激活对应widget
if (haoutil.isutil.isNotNull(request.widget))
mars3d.widget.activate(request.widget);

// initWork(_viewer);
});
}
});
'''
def GET(self):
# web.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, authorization")
# web.header("Access-Control-Allow-Methods", "GET, POST,PUT,DELETE,OPTIONS")
web.header("Access-Control-Allow-Origin", "*")
file = 'C:/Users/asus/Desktop/gaoshengjie/localServers/config.json'
f = open(file, 'rb').read()
return f

def OPTIONS(self):
web.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, authorization")
web.header("Access-Control-Allow-Origin", "*")
file = 'C:/Users/asus/Desktop/gaoshengjie/localServers/config.json'
f = open(file, 'rb').read()
return f

if __name__ == "__main__":
app = web.application(urls, globals())
app.run()

关于 webpy跨域 解决方法的一点总结

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