$http({  

    method:'post',  

   url:'post.php',  

    data:{name:"aaa",id:1,age:20}  

}).success(function(req){  

    console.log(req);  

})

解決方案：

1、 

var myApp = angular.module('app',[]);

myApp.config(function($httpProvider){
 
$httpProvider.defaults.transformRequest = function(obj){
var str = [];
for(var p in obj){
str.push(encodeURIComponent(p) + "=" + encodeURIComponent(obj[p]));
}
return str.join("&");
 

2.  

$http({

method:'post',
url:'post.php',
data:{name:"aaa",id:1,age:20},
headers:{'Content-Type': 'application/x-www-form-urlencoded'},
transformRequest: function(obj) {
var str = [];
for(var p in obj){
str.push(encodeURIComponent(p) + "=" + encodeURIComponent(obj[p]));
}
return str.join("&");
}
}).success(function(req){
console.log(req);
})