Question

iserver 8c 谷歌浏览器，

Sql Server2012数据库

通过SuperMap.REST.GetFeaturesBySQLService查询空间资源时，出现错误提示：

Failed to load resource: net::ERR_EMPTY_RESPONSE

完整的请求地址：

http://112.53.80.136:38099/iserver/services/data-cmdiZYS/rest/data/featureResults.jsonp?returnContent=true&_method=POST&requestEntity=%7B%27datasetNames%27%3A%5B%22cmdiZYS%3AP_INTEGRATED_AREA%22%5D%2C%27getFeatureMode%27%3A%22SQL%22%2C%27queryParameter%27%3A%7B%27attributeFilter%27%3A%22RESGUID%3D%27514b28b301a345c8bc01785fb17e5d33%27%20or%20BELONG%3D%27514b28b301a345c8bc01785fb17e5d33%27%22%2C%27name%27%3Anull%2C%27joinItems%27%3Anull%2C%27linkItems%27%3Anull%2C%27ids%27%3Anull%2C%27orderBy%27%3Anull%2C%27groupBy%27%3Anull%2C%27fields%27%3Anull%7D%7D&callback=SuperMap.Util.RequestJSONP.supermap_callbacks%5B1516931417115483%5D&sectionCount=1&sectionIndex=0&jsonpUserID=1516931417108

应该是跨域问题。

若请求的地址修改为本地的iserver，即127.0.0.1的请求方式，就不会出现以上问题。

请帮助分析如何解决这类错误。

Answer 1

你好，当iserver地址和网页地址不同时，iclinet默认为跨域，请求为jsonp，将isInTheSameDomain设为true，用POST请求发json

例如：

getfeaturesBySQLService= new SuperMap.REST.GetFeaturesBySQLService(url2, {

eventListeners: {

"processCompleted": addFeaturesProcessCompleted,

"processFailed": processFailed

},isInTheSameDomain:true

});

Comments

可否qq沟通一下？306535378，谢谢