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让JSON.js完全适应.NET

2015-05-17 22:40 148 查看
动机:.net 默认的时间序列化方式为\/Date(数字 时区)\/,序列化成JSON在前端很难处理,有没有一种好的处理方式呢?

改进:

JSON = new function(){
this.decode = function(){
var    filter, result, self, tmp;
if($$("toString")) {
switch(arguments.length){
case    2:
self = arguments[0];
filter = arguments[1];
break;
case    1:
if($[typeof arguments[0]](arguments[0]) === Function) {
self = this;
filter = arguments[0];
}
else
self = arguments[0];
break;
default:
self = this;
break;
};
if(rc.test(self)){
try{
result = e("(".concat(self, ")"));
if(filter && result !== null && (tmp = $[typeof result](result)) && (tmp === Array || tmp === Object)){
for(self in result)
result[self] = v(self, result) ? filter(self, result[self]) : result[self];
}
}
catch(z){}
}
else {
throw new Error("bad data");
}
};
return result;
};
this.encode = function(){
var    self = arguments.length ? arguments[0] : this,
result, tmp;
if(self === null)
result = "null";
else if(self !== undefined && (tmp = $[typeof self](self))) {
switch(tmp){
case    Array:
result = [];
for(var    i = 0, j = 0, k = self.length; j < k; j++) {
if(self[j] !== undefined && (tmp = JSON.encode(self[j])))
result[i++] = tmp;
};
result = "[".concat(result.join(","), "]");
break;
case    Boolean:
result = String(self);
break;
56                 case    Date:
57                     result = '"\\/Date('.concat(self.valueOf(),')\\/"');
58                     break;
case    Function:
break;
case    Number:
result = isFinite(self) ? String(self) : "null";
break;
case    String:
result = '"'.concat(self.replace(rs, s).replace(ru, u), '"');
break;
default:
var    i = 0, key;
result = [];
for(key in self) {
if(self[key] !== undefined && (tmp = JSON.encode(self[key])))
result[i++] = '"'.concat(key.replace(rs, s).replace(ru, u), '":', tmp);
};
result = "{".concat(result.join(","), "}");
break;
}
};
return result;
};
this.toDate = function(){
var    self = arguments.length ? arguments[0] : this,
result=self;
if(rd.test(self)){
result = new Date();
result.setHours(i(self, 11, 2));
result.setMinutes(i(self, 14, 2));
result.setSeconds(i(self, 17, 2));
result.setMonth(i(self, 5, 2) - 1);
result.setDate(i(self, 8, 2));
result.setFullYear(i(self, 0, 4));
}
92         //else if(rt.test(self))
93         //result = new Date(self * 1000);
94         else if(rr.test(self)){
95         result=new Date(self.match(/\d+/)[0]-0);
96         }
return result;
};

100     this.defaultDateFilter=function(k,m){ // 提供通用的时间字符串解析方式(尽可能利用原有处理机制,这一过程较消耗性能,需要解析时间时使用filter)
101     switch($[typeof m](m)){
102     case Array:
103     case Object:
104     for(var p in m){
105     m[p]=v(p,m)?arguments.callee(p,m[p]):m[p];
106     }
107     return m;
108     case String:
109       return JSON.toDate(m);
110       default:
111       return m;
112     }
113     }
var    c = {"\b":"b","\t":"t","\n":"n","\f":"f","\r":"r",'"':'"',"\\":"\\","/":"/"},
d = function(n){return n<10?"0".concat(n):n},
e = function(c,f,e){e=eval;delete eval;if(typeof eval==="undefined")eval=e;f=eval(""+c);eval=e;return f},
i = function(e,p,l){return 1*e.substr(p,l)},
p = ["","000","00","0",""],
rc = null,
rd = /^[0-9]{4}\-[0-9]{2}\-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}$/,
rs = /(\x5c|\x2F|\x22|[\x0c-\x0d]|[\x08-\x0a])/g,
122         rr=/^\/Date\(\d+\)\/$/,
rt = /^([0-9]+|[0-9]+[,\.][0-9]{1,3})$/,
ru = /([\x00-\x07]|\x0b|[\x0e-\x1f])/g,
s = function(i,d){return "\\".concat(c[d])},
u = function(i,d){
var    n=d.charCodeAt(0).toString(16);
return "\\u".concat(p[n.length],n)
},
v = function(k,v){return $[typeof v[k]](v[k])!==Function&&(v.hasOwnProperty?v.hasOwnProperty(k):v.constructor.prototype[k]!==v[k])},
$ = {
"boolean":function(){return Boolean},
"function":function(){return Function},
"number":function(){return Number},
"object":function(o){return o instanceof o.constructor?o.constructor:null},
"string":function(){return String},
"undefined":function(){return null}
},
$$ = function(m){
function $(c,t){t=c[m];delete c[m];try{e(c)}catch(z){c[m]=t;return 1}};
return $(Array)&&$(Object)
};
try{rc=new RegExp('^("(\\\\.|[^"\\\\\\n\\r])*?"|[,:{}\\[\\]0-9.\\-+Eaeflnr-u \\n\\r\\t])+?$')}
catch(z){rc=/^(true|false|null|\[.*\]|\{.*\}|".*"|\d+|\d+\.\d+)$/}
};


至此,已经可以轻松搞定JSON时间处理的麻烦。不过这里有一点点不完美的地方,要求.NET端的时间使用UTC时间,总的来说这也不是什么大的缺陷,可以接受。我的理由是在多时区时就应当在服务端使用UTC时间。
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