我想通过ajax调用从地图获取json数据

Question

i am calling map.php by passing lat long from ajax url i need to get map place response from map

function getinfo(lat,lng){
                $.ajax({
                  url:"map1.php?lat="+lat+"&lng="+lng,
                crossDomain:true,
                type:'POST',
                dataType:'application/json',
                data:"{}",
                  success:function(data){
                  var len = data.results.length;
                  for(var i=0;i<len;i++ ){
                      console.log(data.results[i]);
                  }
                }
                });
              };

error is

response is not defined, function is not trigger

Answer 1

I think your result is probably not in JSON format, so when jQuery tries to parse it as such, it fails. For more information about error you can catch the error with error: callback function.

error: function () {
 // your error handled inside this section
}

If you don't want to get JSON data response please remove dataType attribute.

Other than that please check you backend return data object. Also check the structure of your response data.

The structure also can have error. Also you can check your ajax call using chrome debugger and catch the results and errors.