I would like to send a list of data by ajax. So I push all data in a 2d array
But the ajax of jquery not accept the array data, the data must be object or query string
since the Object of javascript is no push function, I must use array to build the list of data. Is there any function in jquery or javascript, let me
var countLine=$("line").length;
var lines=$("line");
var lineArr=new Array();
var linesArr=new Array();
var x1, y1, x2, y2;
for(i=0; i<countLine; i++)
{
lineArr['x1']=lines[i].getAttributeNS(null, "x1");
lineArr['y1']=lines[i].getAttributeNS(null, "y1");
lineArr['x2']=lines[i].getAttributeNS(null, "x2");
lineArr['y2']=lines[i].getAttributeNS(null, "y2");
linesArr.push(lineArr);
}
$.ajax({
type: "POST",
url: "test.php",
data: linesArr,
async: true,
cache: false,
success: function(data){
$("#txt").text(data);
},
error: function(XMLHttpRequest, textStatus, errorThrown){
alert("fail");
}
});
Change
data: linesArr
to
data: { linesArr: linesArr }
This will send an object with a single property, "linesArr"
, which contains the value of your array.
EDIT: you have a bigger problem. You are trying to store non-numeric properties in an array, as shown in this line:
lineArr['x1']=lines[i].getAttributeNS(null, "x1");
You are also reusing the same lineArr
"array" each time through the loop. The following code would work much better:
var lines = $("line");
var linesArray = [];
for (var i = 0; i < lines.length; ++i) {
var line = lines[i];
linesArray.push({
x1: line.getAttributeNS(null, "x1"),
y1: line.getAttributeNS(null, "y1"),
x2: line.getAttributeNS(null, "x2"),
y2: line.getAttributeNS(null, "y2")
});
}
Then you would access your data like $_POST["linesArr"][0]["x1"]
.
You need to convert the object to a JSON string using JSON.stringify()
.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.