angular -- post请求该如何使用？

// post 携带参数访问
$http({  
    method:‘post‘,  
    url:postUrl,  
    data:{name:"aaa",id:1,age:20}  
}).success(function(req){  
    console.log(req);  
});

https://blog.csdn.net/fengzijinliang/article/details/51897991

$http({  
    method:‘post‘,  
    url:postUrl,  
    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);  
});