object 转换成json(转载)
2010-11-26 11:09 爱研究源码的javaer 阅读(849) 评论(0) 编辑 收藏 举报 
Object转换成json的JS代码 收藏
下面是通用的Object转换成json的JS代码 //用法
//var obj=new Object();
//obj.Name= 'Nams ';
//obj.Sex=1;
//JSON.serialize(obj);//will get: {Name: 'Nams ',Sex:1}
if(typeof StringBuilder== 'undefined '){
StringBuilder=function(initialText)
{
var _parts = new Array();
if ((typeof(initialText) == 'string ')
&&(initialText.length != 0))
_parts.push(initialText);
this.append = function(text) {
if ((text == null) || (typeof(text) == 'undefined ')) {
return;
}
if ((typeof(text) == 'string ') && (text.length == 0)) {
return;
}
_parts.push(text);
}
this.appendLine = function(text) {
this.append(text);
_parts.push( '\r\n ');
}
this.clear = function() {
_parts.clear();
}
this.isEmpty = function() {
return (_parts.length == 0);
}
this.toString = function(delimiter) {
return _parts.join(delimiter || ' ');
}
}
}
JSON = new function() {
function serializeWithBuilder(object, stringBuilder) {
var i;
switch (typeof object) {
case 'object ':
if (object) {
if (object.join) {//if is array, you can using another method implement
stringBuilder.append( '[ ');
for (i = 0; i < object.length; ++i) {
if (i > 0) {
stringBuilder.append( ', ');
}
stringBuilder.append(serializeWithBuilder(object[i], stringBuilder));
}
stringBuilder.append( '] ');
}
else {
if (typeof object.serialize == 'function ') {
stringBuilder.append(object.serialize());
break;
}
stringBuilder.append( '{ ');
var needComma = false;
for (var name in object) {
if (name.startsWith( '$ ')) {
continue;
}
var value = object[name];
if (typeof value != 'undefined ' && typeof value != 'function ') {
if (needComma)
stringBuilder.append( ', ');
else
needComma = true;
stringBuilder.append(serializeWithBuilder(name, stringBuilder));
stringBuilder.append( ': ');
stringBuilder.append(serializeWithBuilder(value, stringBuilder));
}
}
stringBuilder.append( '} ');
}
}
else {
stringBuilder.append( 'null ');
}
break;
case 'number ':
if (isFinite(object)) {
stringBuilder.append(String(object));
}
else {
stringBuilder.append( 'null ');
}
break;
case 'string ':
stringBuilder.append( ' " ');
var length = object.length;
for (i = 0; i < length; ++i) {
var curChar = object.charAt(i);
if (curChar > = ' ') {
if (curChar == '\\ ' || curChar == ' " ') {
stringBuilder.append( '\\ ');
}
stringBuilder.append(curChar);
}
else {
switch (curChar) {
case '\b ':
stringBuilder.append( '\\b ');
break;
case '\f ':
stringBuilder.append( '\\f ');
break;
case '\n ':
stringBuilder.append( '\\n ');
break;
case '\r ':
stringBuilder.append( '\\r ');
break;
case '\t ':
stringBuilder.append( '\\t ');
break;
default:
stringBuilder.append( '\\u00 ');
stringBuilder.append(curChar.charCodeAt().toString(16));
}
}
}
stringBuilder.append( ' " ');
break;
case 'boolean ':
stringBuilder.append(object.toString());
break;
default:
stringBuilder.append( 'null ');
break;
}
}
this.serialize = function(object) {
var stringBuilder = new StringBuilder();
serializeWithBuilder(object, stringBuilder);
return stringBuilder.toString();
}
this.deserialize = function(data) {
return eval( '( ' + data + ') ');
}
}转自:http://blog.csdn.net/lee576/archive/2008/04/06/2255091.aspx
