Question

             on mouseUp 

               loadPreferences   
             end mouseUp
            command loadPreferences

               local tTree
               put readPreferencesToXMLTree() into tTree
               if tTree is empty then
                  exit loadPreferences
               end if
               processPreferencesTree tTree
               revDeleteXMLTree tTree
            end loadPreferences

            private function readPreferencesToXMLTree


               set the itemDelimiter to slash
                     local tPreferencesFile
               put the URL"http://htp2.hitecpoint.in:98/api/blackbox/live/45" into tPreferencesFile

               local tPreferencesData, tResult
               put tPreferencesFile into tPreferencesData
               put the result into tResult

               if tResult is not empty then
                  answer error "Failed to read preferences file at location: " & tPreferencesFile
                  return empty
               end if
               local tTree
               put revCreateXMLTree(tPreferencesData, false, true, false) into tTree   
               if tTree is not an integer then
                  answer error "Failed to process preferences file with error: " & tTree
                  return empty
               end if
               return tTree
            end readPreferencesToXMLTree





                 private command processPreferencesTree pTree   
                  local tPosts
                  put revXMLChildNames(pTree, "ArrayOfLiveStatus/LiveStatus", return, "Location", true) into tPosts     
               local tListOfNames
               repeat for each line tName in tPosts
                  put revXMLNodeContents(pTree, "ArrayOfLiveStatus/LiveStatus" & tName) & return after tListOfNames
               end repeat
               delete the last char of tListOfNames   
               local tOutput
               put tListOfNames after tOutput
               set the text of field "NameList" to tOutput

            end processPreferencesTree

我正在使用Livecode软件。我正在访问返回xml数据的web api“http://htp2.hitecpoint.in:98/api/blackbox/live/45”。我想解析位置节点但我总是收到错误“xmlerr，找不到元素”。我做错了请帮忙。

Answer 1

此服务器默认返回JSON。在发出请求之前，您需要将内容类型设置为application / xml：

set the httpHeaders to "Content-Type: application/xml"

现在服务器将返回XML，您应该能够检索所需的节点。

如何在livecode中解析xml

1 个答案: