在AngularJS中調用NodeJS函數
[英]Call NodeJS Function in AngularJS
問題描述
app.get("/myDBfunction",getCommunicationDetails);
function myDBfunction(req,res){
var queryObject = url.parse(req.url,true).query;
console.log("req.method ",req.method);
var resultset={};
resultset.result=[];
var queryString = `select * from table..`
connection.query(queryString, function(err, result) {
if (!err){
var response = [];
response.push({'result' : 'success'});
if (result.length != 0) {
response.push({'data' : result});
} else {
response.push({'msg' : 'No Result Found'});
}
res.setHeader('Content-Type', 'application/json');
res.status(200).send(JSON.stringify(response));
} else {
res.status(400).send(err);
}
})
};
我已經創建了Nodejs函數來連接到mysql，並能夠以json格式顯示。 現在，我想在angular js中調用此函數，並將json轉換為excel，然后下載報告。 我是Angular的新手，請幫助我完成所有步驟。 提前致謝。
編輯1： Firstpro.html文件
<html ng-app="myApp">
<head>
<script data-require="angular.js@*" data-semver="2.0.0" src="https://code.angularjs.org/1.4.8/angular.js"></script>
<script data-require="jquery@*" data-semver="2.1.4" src="https://code.jquery.com/jquery-2.1.4.js"></script>
</head>
<body ng-controller="MyCtrl">
<script src="/app.js"></script>
<h1>Export to Excel</h1>
<button class="btn btn-link" ng-click="exportToExcel('#tableToExport')">
<span class="glyphicon glyphicon-share"></span>
Export to Excel
</button>
<div id="tableToExport">
<table border="1">
<thead>
<tr class="table-header">
<th>Team</th>
<th>Process Type</th>
<th>Cedent</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="data in details">
<td>{{data.team}}</td>
<td>{{data.type}}</td>
<td>{{data.cedent}}</td>
</tr>
</tbody>
</table>
</div>
</body>
</html>
myCtrl.js文件
myApp.controller('myController',funtion($scope,$http){
$http.get("/Details").then(function(response){
$scope.details = response.data; //You get your data here from nodejs API, and iterate details in your View
});
});
app.js文件
var myApp=angular.module("myApp",[]);
myApp.factory('Excel',function($window){
var uri='data:application/vnd.ms-excel;base64,',
template='<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"><head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head><body><table>{table}</table></body></html>',
base64=function(s){return $window.btoa(unescape(encodeURIComponent(s)));},
format=function(s,c){return s.replace(/{(\w+)}/g,function(m,p){return c[p];})};
return {
tableToExcel:function(tableId,worksheetName){
var table=$(tableId),
ctx={worksheet:worksheetName,table:table.html()},
href=uri+base64(format(template,ctx));
return href;
}
};
})
.controller('myCtrl',function(Excel,$timeout,$scope,$http){
//get data from Node api; For example i will using $timeout just to simulate api call; Also i am assuming your JSON would be like below that i have assigned
$timeout(function(){
$scope.details = [
{
team:'v1',
type:'v2',
cedent:'v3'
},
{
team:'v1',
type:'v2',
cedent:'v3'
},
{
team:'v1',
type:'v2',
cedent:'v3'
}
]
},1000)
//below is how you would do your HTTP call tp node js server. I have commented this codefor now just to simulate the dummy data above in $timeout.
/*$http.get("/myDBfunction").then(function(response){
$scope.details = response.data; //You get your data here from nodejs API, and iterate details in your View
});*/
$scope.exportToExcel=function(tableId){ // ex: '#my-table'
var exportHref=Excel.tableToExcel(tableId,'WireWorkbenchDataExport');
$timeout(function(){location.href=exportHref;},100); // trigger download
}
});
現在，我已經運行了myHTML文件，就像這樣； 但是應該從MYsql表中獲取。 導出到Excel
Export to Excel
Team Process Type Cedent
{{data.team}} {{data.type}} {{data.cedent}}
2 個解決方案
解決方案1
0 2017-09-15 05:40:09
在角度，你可以使用這種方式調用API
$http.get("/myDBfunction")
.then(function(response){ $scope.details = response.data; });
請參閱更多此文檔
解決方案2
0 已采納 2017-09-15 05:48:13
編輯2
從SQL獲取數據使用下面的代碼而不是$timeout
$http.get("/myDBfunction").then(function(response){
console.log(response.data)
$scope.details = response.data; // here you will get data
},function(res){
console.log("Error",res) //error occured
});
編輯
您可以在控制器中調用如下所示的nodejs api，並可以使用“ ng-repeat”以表格格式顯示JSON導致以View格式顯示
在您的控制器中：
myApp.controller('myController',funtion($scope,$http){
$http.get("/myDBfunction").then(function(response){
$scope.details = response.data; //You get your data here from nodejs API, and iterate details in your View
});
});
並且在視圖中重復該數據
<table>
<tr ng-repeat="data in details track by $index" > // here I made changes
<td> {{data.prop1}} //iterate over data here</td>
</tr>
</table>
然后按照下面的編碼在excel中導出
// This will be your app.js file var myApp=angular.module("myApp",[]); myApp.factory('Excel',function($window){ var uri='data:application/vnd.ms-excel;base64,', template='<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"><head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head><body><table>{table}</table></body></html>', base64=function(s){return $window.btoa(unescape(encodeURIComponent(s)));}, format=function(s,c){return s.replace(/{(\\w+)}/g,function(m,p){return c[p];})}; return { tableToExcel:function(tableId,worksheetName){ var table=$(tableId), ctx={worksheet:worksheetName,table:table.html()}, href=uri+base64(format(template,ctx)); return href; } }; }) .controller('MyCtrl',function(Excel,$timeout,$scope,$http){ //get data from Node api; For example i will using $timeout just to simulate api call; Also i am assuming your JSON would be like below that i have assigned $timeout(function(){ $scope.details = [ { team:'v1', type:'v2', cedent:'v3' }, { team:'v1', type:'v2', cedent:'v3' }, { team:'v1', type:'v2', cedent:'v3' } ] },1000) //below is how you would do your HTTP call tp node js server. I have commented this codefor now just to simulate the dummy data above in $timeout. /*$http.get("/myDBfunction").then(function(response){ $scope.details = response.data; //You get your data here from nodejs API, and iterate details in your View });*/ $scope.exportToExcel=function(tableId){ // ex: '#my-table' var exportHref=Excel.tableToExcel(tableId,'WireWorkbenchDataExport'); $timeout(function(){location.href=exportHref;},100); // trigger download } });
.table-header { background-color: lightskyblue; }
<!-this is your HTML -> <html ng-app="myApp"> <head> <script data-require="angular.js@*" data-semver="2.0.0" src="https://code.angularjs.org/1.4.8/angular.js "></script> <script data-require="jquery@*" data-semver="2.1.4" src="https://code.jquery.com/jquery-2.1.4.js"></script> </head> <body ng-controller="MyCtrl"> <h1>Export to Excel</h1> <button class="btn btn-link" ng-click="exportToExcel('#tableToExport')"> <span class="glyphicon glyphicon-share"></span> Export to Excel </button> <button class="btn btn-link" ng-click="exportToExcel('#another')"> <span class="glyphicon glyphicon-share"></span> Export to Excel Plain JSON </button> <div id="tableToExport"> <table border="1"> <thead> <tr class="table-header"> <th>Team</th> <th>Process Type</th> <th>Cedent</th> </tr> </thead> <tbody> <tr ng-repeat="data in details track by $index"> <td>{{data.team}}</td> <td>{{data.type}}</td> <td>{{data.cedent}}</td> </tr> </tbody> </table> </div> <div id="another"> {{details}} </div> </body> </html>
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