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JS对象序列化成json数据和json数据转化为JS对象的代码

2017年12月12日  | 移动技术网IT编程  | 我要评论

js对象序列化成json数据：

function serialize(obj){   
  switch(obj.constructor){   
    case object:   
      var str = "{";   
      for(var o in obj){   
        str += o + ":" + serialize(obj[o]) +",";   
      }   
      if(str.substr(str.length-1) == ",")   
        str = str.substr(0,str.length -1);   
       return str + "}";   
       break;   
     case array:         
       var str = "[";   
       for(var o in obj){   
         str += serialize(obj[o]) +",";   
       }   
       if(str.substr(str.length-1) == ",")   
         str = str.substr(0,str.length -1);   
       return str + "]";   
       break;   
     case boolean:   
       return "\"" + obj.tostring() + "\"";   
       break;   
     case date:   
       return "\"" + obj.tostring() + "\"";   
       break;   
     case function:   
       break;   
     case number:   
       return "\"" + obj.tostring() + "\"";   
       break;    
     case string:   
       return "\"" + obj.tostring() + "\"";   
       break;     
   }   
 }   
var staff_list_obj  ={};  
var staff_id   = 1001;  
staff_list_obj[staff_id]  = {};  
staff_list_obj[staff_id]["姓名"] = '111';  
staff_list_obj[staff_id]["测试"] = '222';  
alert(serialize(staff_list_obj));

js对象序列化为json对象的方法二

var $ = $ || {};



/** 
 * 将js对象序列化为json字符串 
 * @param {mixed} o the variable to decode 
 * @return {string} the json string 
 * string json = $.encode(o); 
 */ 
$.encode = (function() {
  if ( typeof(json)!=='undefined' && typeof(json.stringify)!=='undefined') {
    return json.stringify;
  }
  var i = !!{}.hasownproperty, _ = function(i) {
    return i < 10 ? "0" + i : i;
  }, a = {
    "\b" : "\\b",
    "\t" : "\\t",
    "\n" : "\\n",
    "\f" : "\\f",
    "\r" : "\\r",
    "\"" : "\\\"",
    "\\" : "\\\\"
  };
  return (function(c) {
    if (typeof c == "undefined" || c === null) {
      return "null";
    } else {
      if (object.prototype.tostring.call(c) === "[object array]") {
        var b = ["["], g, e, d = c.length, f;
        for (e = 0; e < d; e += 1) {
          f = c[e];
          switch (typeof f) {
            case "undefined" :
            case "function" :
            case "unknown" :
              break;
            default :
              if (g) {
                b.push(",");
              }
              b.push(f === null ? "null" : $.encode(f));
              g = true;
          }
        }
        b.push("]");
        return b.join("");
      } else {
        if ((object.prototype.tostring.call(c) === "[object date]")) {
          return "\"" + c.getfullyear() + "-" + _(c.getmonth() + 1) + "-" + _(c.getdate()) + "t" + _(c.gethours()) + ":" + _(c.getminutes()) + ":" + _(c.getseconds()) + "\"";
        } else {
          if (typeof c == "string") {
            return "\"" + c.replace(/([\x00-\x1f\\"])/g, function(b, _) {
              var i = a[_];
              if (i) {
                return i;
              }
              return '';
            }).replace(/[^\u0000-\u00ff]/g, function($0) {
              return escape($0).replace(/(%u)(\w{4})/gi, "\\u$2")
            }) + "\"";
          } else {
            if (typeof c == "number") {
              return isfinite(c) ? string(c) : "null";
            } else {
              if (typeof c == "boolean") {
                return string(c);
              } else {
                b = ["{"], g, e, f;
                for (e in c) {
                  if (!i || c.hasownproperty(e)) {
                    f = c[e];
                    if (f === null) {
                      continue;
                    }
                    switch (typeof f) {
                      case "undefined" :
                      case "function" :
                      case "unknown" :
                        break;
                      default :
                        if (g) {
                          b.push(",");
                        }
                        b.push($.encode(e), ":", $.encode(f));
                        g = true;
                    }
                  }
                }
                b.push("}");
                return b.join("");
              }
            }
          }
        }
      }
    }
  });
})();

json数据转化为js对象：

var jsonstring={....}/[....];
eval("var obj="+jsonstring);
alert(obj);

写道

function evaljson(json){ 
var obj = null; 
try { 
obj = eval("(" + json + ")"); 
} catch(e){} 

return obj ; 
}

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