function ajax(options){
//补全
}
ajax({
url: 'http://api.jirengu.com/weather.php',
data: {
city: '北京'
},
onsuccess: function(ret){
console.log(ret)
},
onerror: function(){
console.log('服务器异常')
}
})
function ajax(options){
var url = options.url;
var type = options.type || 'GET';
var dataType = options.dataType || 'json';
var onsuccess = options.onsuccess || function(){};
var onerror = options.onerror || function(){};
var data = options.data || {};
var dataStr = [];
for(var key in data){
dataStr.push(key + '=' + data[key]);
}
dataStr = dataStr.jion('&');
if(type === 'GET'){
url += '?' + dataStr;
}
var xhr = new XMLHttpRequest();
xhr.open(type, url, true);
xhr.onload = function(){
if((xhr.status >= 200 && xhr.status < 300) || xhr.status === 304){
// 成功了
if(dataType === 'json'){
onsuccess(Json.parse(xhr.responseText));
}else{
onsuccess(xhr.responseText);
}
}else{
onerror();
}
};
xhr.onerror = onerror;
if(type === 'POST'){
xhr.send(dataStr);
}else{
xhr.send();
}
}
ajax({
url: 'http://api.jirengu.com/weather.php',
data: {
city: '北京'
},
onsuccess: function(ret){
console.log(ret);
},
onerror: function(){
console.log('服务器异常');
}
});
