我想使用结果集中返回的多行值来一次又一次地调用过程，并在主 html 页面上显示调用过程的结果
适配器 JS
var selectStatement = WL.Server.createSQLStatement("select * from medicine WHERE Name= ? ");
var selectStatement2 = WL.Server.createSQLStatement("select LocId from location WHERE LocName= ? ");
var selectStatement3 = WL.Server.createSQLStatement("select RegNo from storeloc WHERE LocId= ? ");
var selectStatement4 = WL.Server.createSQLStatement("select RegNo from stormedavl where RegNo=? AND (MedId=? AND Availability=true)");
var selectStatement5 = WL.Server.createSQLStatement("select * from store WHERE RegNo= ? ");
function getMedicineDetails1(Name,Location) {
var a=getMedicineDetails(Name);
var MedId=a.resultSet;
var b=getLocId(Location);
var LocId=b.resultSet;
var c=getRegNo(LocId[0].LocId);
var cc=c.resultSet;
//here c.resultSet contains two rows
var d={},e;
if(cc && cc.length>0)
{
for(var i=0;i<c.resultSet.length;i++)
{
d[i]=getFinal(cc[i].RegNo,MedId[0].MedId);
}
return d;
}
}
function getMedicineDetails(Name) {
return WL.Server.invokeSQLStatement({
preparedStatement : selectStatement,
parameters : [Name]
});
}
function getLocId(Location) {
return WL.Server.invokeSQLStatement({
preparedStatement : selectStatement2,
parameters : [Location]
});
}
function getRegNo(LocId) {
return WL.Server.invokeSQLStatement({
preparedStatement : selectStatement3,
parameters : [LocId]
});
}
function getFinal(RegNo,MedId) {
return WL.Server.invokeSQLStatement({
preparedStatement : selectStatement4,
parameters : [RegNo,MedId]
});
}
function getStoreDetails(RegNo) {
return WL.Server.invokeSQLStatement({
preparedStatement : selectStatement5,
parameters : [RegNo]
});
}
JS文件
window.$ = window.jQuery = WLJQ;
function wlCommonInit() {
}
$(document).ready(function(){
$("#search").click(function(){
GetEmployeeData();
});
});
var med;
function GetEmployeeData() {
var medicine= $("#medicine").val();
var location=$("#location").val();
alert(medicine);
var invocationData = {
adapter : 'ATM',
procedure : 'getMedicineDetails1',
parameters: [medicine,location]
};
WL.Client.invokeProcedure(invocationData,{
onSuccess : loadFeedsSuccess,
onFailure : loadFeedsFailure
});
}
function loadFeedsSuccess(result){
alert("Hii");
WL.Logger.debug("Feed retrieve success");
if (result.invocationResult.resultSet.length>0)
{
displayFeeds2(result.invocationResult.resultSet);
}
else
loadFeedsFailure();
}
function loadFeedsFailure(result){
alert("Values Not Found in DB");
}
function displayFeeds2(items){
alert("ii");
var table = document.getElementById("myTable1");
for(var i=0;i<items.length;i++)
{
var row = table.insertRow(i+1);
// Insert new cells (<td> elements) at the 1st and 2nd position of the "new" <tr> element:
var cell1 = row.insertCell(0);
cell1.innerHTML = items[i].RegNo;
}
}
function LoadResultPage()
{
$("AppDiv").hide();
$("#itemsList").show();
};
HTML 文件
<!DOCTYPE HTML>
<html>
<head>
<meta charset="UTF-8">
<title>ATM</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=0">
<link rel="shortcut icon" href="images/favicon.png">
<link rel="apple-touch-icon" href="images/apple-touch-icon.png">
<link rel="stylesheet" href="css/ATM.css">
<script>window.$ = window.jQuery = WLJQ;</script>
</head>
<body id="content" style="display: none;">
<!--application UI goes here-->
<div id="AppDiv">
<h1> <img border="0" src="images/atm.png" width="50" height="50" align="middle">
<font color='white'> ANY TIME MEDICINE </font>
</h1>
<br>
<div data-role="page" id="mainPage">
<div data-role="header">search medicine
</div><br>
<hr>
<div data-role="content">
<input type="text" value="MEDICINE" id="medicine"><hr>
<input type="text" value="LOCATION" id="location"><hr>
<input type="submit" id="search" value="SEARCH">
</div>
</div>
<div id="itemsList" data-role="page">
<table id="myTable1" border="1">
<tr>
<th>Registration No</th>
</tr>
</table>
<div data-role="header">gg
</div>
<div data-role="content">
</div>
</div>
<script src="js/initOptions.js"></script>
<script src="js/ATM.js"></script>
<script src="js/messages.js"></script>
</div>
</body>
</html>
问题是，由于从循环中调用 getFinal 适配器过程，我们在输出中只得到一个 RegNo(注册号)，而不是两个。我想问一下我们如何存储 getFinal 过程调用的结果然后将它们显示在html页面上。基本上我想问我们是否可以从服务器返回一个结果集数组给客户端。
最佳答案
您需要做的是将 getRegNo 和 getFinal 中的两个结果集混搭在一起。 以下是如何从服务器获取结果集数组
更改您的代码:
//here c.resultSet contains two rows
var d={},e;
if(cc && cc.length>0) {
for(var i=0;i<c.resultSet.length;i++) {
d[i]=getFinal(cc[i].RegNo,MedId[0].MedId);
}
return d;
}
在您的代码中，您将得到类似 {0 : 'regNo_1', 1 : 'regNo_2'} 的内容，其中整数为 d[i]
至:
//here c.resultSet contains two rows
if (cc && cc.length > 0) {
for (var i = 0; i < cc.length; i++) {
cc[i].regNo = getFinal(cc[i].RegNo,MedId[0].MedId);
}
return {'regNos' : cc};
}
}
为了获得如下所示的结果集数组:
{
"regNos": [
{
"regNo": 12345,
"regNo": {
"isSuccessful": true,
"regNo": [
{
"regNo": "1"
}
]
}
},
{
"regNo": 54321,
"regNo": {
"isSuccessful": true,
"resultSet": [
{
"regNo": "2"
}
]
}
}
],
"isSuccessful": true
}
关于javascript - 在 worklight 中从服务器返回结果集数组，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/22783175/