URL类

全局名称

全局名称是由源码的最后一行代码确定的，默认为Url，如存在相同名称的对象会抛出异常；
可以通过 requirejs的define获取

(function (window, name) {
    if (name in window) {
        throw new Error(["already '", name, "' in 'window'"].join(""));
    }
...
    window[name] = Url;
    if (typeof window.define === "function") {
        window.define(name, [], function () { return Url; });
    }
})(window, "Url");

静态方法

• Url.encoded(params)

将对象编码为URL参数，类似于jQuery.param()，不包含“？”；

var myObject = {
    a: {
        one: 1, 
        two: 2, 
        three: 3
    }, 
    b: [1,2,3]
};
var recursiveEncoded = Url.encoded(myObject);
var recursiveDecoded = decodeURIComponent(recursiveEncoded);
console.log(recursiveEncoded);
console.log(recursiveDecoded);

结果：

a%5Bone%5D=1&a%5Btwo%5D=2&a%5Bthree%5D=3&b%5B%5D=1&b%5B1%5D=2&b%5B2%5D=3   
a[one]=1&a[two]=2&a[three]=3&b[]=1&b[1]=2&b[2]=3

• Url.parseSearch(search)

与Url.encoded(params)相反，将URL参数字符串转为js对象

var myObject = {
    a: {
        one: 1, 
        two: 2, 
        three: 3
    }, 
    b: [1,2,3]
};
var recursiveEncoded = Url.encoded(myObject);
var obj = Url.parseSearch(recursiveEncoded);
console.log(JSON.stringify(obj, null, "    "));

结果：(从URL参数转为js对象会丢失参数类型，全部变为string)

 {
    "a": {
        "one": "1",
        "two": "2",
        "three": "3"
    },
    "b": [
        "1",
        "2",
        "3"
    ]
}

• Url.combine(url1, url2)

将2个url组合成一个新的Url

Url.combine("/","/api/user/get").toString();  // /api/user/get
Url.combine("/http/web","/api/user/get").toString();  // /api/user/get
Url.combine("/http/web","api/user/get").toString();  // /api/user/get
Url.combine("/http/web/","api/user/get").toString();  // /http/api/user/get
Url.combine("/http/web/","../api/user/get").toString(); // /http/api/user/get
Url.combine("/http/web","../api/user/get").toString(); // /api/user/get
Url.combine("/http/web","./api/user/get").toString(); // /http/web/api/user/get

带参数的情况下，默认url2的参数覆盖url1的参数；
如果希望保留url1的参数可以将url2的参数写做ur2="path?&name=value"，在?与name间插入一个&符号；
如果url2与url1参数相同会将参数改为数组；

Url.combine("/http/web?id=1","api/user").toString();  // //http/api/user
Url.combine("/http/web?id=1","?name=2").toString();   // /http/web?name=2
Url.combine("/http/web?id=1","?&name=2").toString();  // /http/web?id=1&name=2
Url.combine("/http/web?id=1","?&id=2").toString();  // /http/web?id%5B%5D=1&id%5B1%5D=2
Url.combine("/http/web?id=1","./../?id=2").toString();  // /http/?id=2
Url.combine("/http/web?id=1","./../?&name=2").toString(); // "/http/?id=1&name=2"

url2不存在锚记时，保留url1的锚记，否则url2的锚记覆盖url1的锚记；
url2结尾为#号时，直接清除url1的所有锚记

Url.combine("/http/web?id=1#h1","api/user").toString(); ///http/api/user#h1
Url.combine("/http/web?id=1#h1","./../?&name=2#h2").toString();  // /http/?id=1&name=2#h2
Url.combine("/http/web?id=1#h1","api/user#").toString();    // /http/api/user?id=1

也可以传多个参数

function combine(url1, url2) {
    ... ...
}
Url.combine = function (url1, url2) {
    if (arguments.length < 2) {
        return arguments[0];
    }
    var _base = url1;
    for (var i = 1; i < arguments.length; i++) {
        _base = combine(_base, arguments[i]).toString();
    }
    return _base;
};

实例化

无论是否通过new关键字调用都会返回一个实例；
不提供url参数时，取window.location.href的值；

var token = new Object();
function Url(url) {
    if (arguments[1] !== token) {
        return new Url(url, token);
    }
    url = trim(url || window.location.href);
    ... ...
}
实例

属性

• scheme

url协议类型，如http://，https://也可以是//

var url = new Url("http://baidu.com");
console.log(url.scheme); // http://
url.scheme = "https://"
console.log(url.toString()); // https://baidu.com

• domain

url的域名部分

var url = new Url("http://baidu.com/api/");
console.log(url.domain); // baidu.com
url.domain= "google.com"
console.log(url.toString()); // http://google.com/api/

• path

url的路径部分

var url = new Url("http://baidu.com/api/get?id=1");
console.log(url.path); // /api/get
url.path = "api/post"
console.log(url.toString()); // http://baidu.com/api/post?id=1

• query

url的参数部分

var url = new Url("http://baidu.com/api/get?id=1#title");
console.log(url.query); // id=1
url.query = "name=1&sex=男"
console.log(url.toString()); // http://baidu.com/api/get?name=1&sex=%E7%94%B7#title
url.query = ""
console.log(url.toString()); // http://baidu.com/api/get#title

• params

url的参数部分被解释后的实体对象

• var url = new Url("http://baidu.com/api/get?id=1#title");
  console.log(url.params.id); // 1
  url.params.id = 2;
  url.params.name = "blqw";
  console.log(url.toString()); // http://baidu.com/api/get?id=2&name=blqw#title

  anchor

url的锚记部分

var url = new Url("http://baidu.com/api/get?id=1#title");
console.log(url.anchor); // #title
url.anchor = "content";
console.log(url.toString()); // http://baidu.com/api/get?id=1#content
url.anchor = "";
console.log(url.toString()); // http://baidu.com/api/get?id=1