Request for ajax for $http for Angular (Recommended)

angular encapsulates the ajax request by encapsulating the $http method

Also encapsulated by $http $http.get() And $http.post() Here, because the diagram saves trouble, these two methods are not as good as using the general method directly

Here first write a case, first write an object

var req = { 
 method: 'POST',// Mode of request  
 url: ip,// Requested address  
 headers: { 
  'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8', 
  'Accept': '*/*' 
 },// The header of the request, if it can not be written by default  
 timeout:5000,// Timeout, not yet tested  
 data: str //message  Must be a=b&c=d Format of  
}; 

Then call the object through the $http method to get the information

$http(req).success(function (data, status, headers, config) { 
 // Data processing after success  
 
}).error(function (data, status, headers, config) { 
 // Prompt after failure  
 console.log("error", data, status, headers, JSON.stringify(config)); 
}); 

angular's ajax uses the way of chain calling, which is convenient and easy to understand

Configuration Items for $http

method: Request mode, including GET/DELETE/HEAD/JSONP/POST/PUT

url: Absolute or Relative Request Target

data or params: Requested data transfer, data is the data requested by post, params is the data requested by get

headers: Header of request

timeout: Set the request timeout time, in milliseconds, 1000 equals 1 second