flash2.0 如何读取asp中返回过来的json格式数据
flash2.0 如何读取asp中返回过来的json格式数据？
资料和代码都可以哈……
[解决办法]
应该是通过JavaScript来读取吧ExternalInterface 接口来与javascript通信，asp数据 通过javascript来传递
[解决办法]
var jsonstring='{"json_flash":[{"address":"china","emp":"100","state":"0"}]}';var json:JSON=new JSON();var jsonobj:Object=json.parse(jsonstring);trace(jsonobj.json_flash[0].address);trace(jsonobj.json_flash[0].emp);trace(jsonobj.json_flash[0].state);
[解决办法]
class JSON
{
var ch:String = '';
var at:Number = 0;
var t, u;
var text:String;
function stringify(arg):String
{
var c, i, l, s = '', v;
switch (typeof arg)
{
case 'object' :
if (arg)
{
if (arg instanceof Array)
{
for (i = 0; i < arg.length; ++i)
{
v = stringify(arg);
if (s)
{
s += ',';
}
s += v;
}
return '[' + s + ']';
}
else if (typeof arg.toString != 'undefined')
{
for (i in arg)
{
v = arg;
if (typeof v != 'undefined' && typeof v != 'function')
{
v = stringify(v);
if (s)
{
s += ',';
}
s += stringify(i) + ':' + v;
}
}
return '{' + s + '}';
}
}
return 'null';
case 'number' :
return isFinite(arg) ? String(arg) : 'null';
case 'string' :
l = arg.length;
s = '"';
for (i = 0; i < l; i += 1)
{
c = arg.charAt(i);
if (c >= ' ')
{
if (c == '\\' || c == '"')
{
s += '\\';
}
s += c;
}
else
{
switch (c)
{
case '\b' :
s += '\\b';
break;
case '\f' :
s += '\\f';
break;
case '\n' :
s += '\\n';
break;
case '\r' :
s += '\\r';
break;
case '\t' :
s += '\\t';
break;
default :
c = c.charCodeAt();
s += '\\u00' + Math.floor(c / 16).toString(16) + (c % 16).toString(16);
}
}
}
return s + '"';
case 'boolean' :
return String(arg);
default :
return 'null';
}
}
function white()
{
while (ch)
{
if (ch <= ' ')
{
this.next();
}
else if (ch == '/')
{
switch (this.next())
{
case '/' :
while (this.next() && ch != '\n' && ch != '\r')
{
}
break;
case '*' :
this.next();
for (; ; )
{
if (ch)
{
if (ch == '*')
{
if (this.next() == '/')
{
next();
break;
}
}
else
{
this.next();
}
}
else
{
error("Unterminated comment");
}
}
break;
default :
this.error("Syntax error");
}
}
else
{
break;
}
}
}
function error(m)
{
throw {name:'JSONError', message:m, at:at - 1, text:text};
}
function next()
{
ch = text.charAt(at);
at += 1;
return ch;
}
function str()
{
var i, s = '', t, u;
var outer:Boolean = false;
if (ch == '"')
{
while (this.next())
{
if (ch == '"')
{
this.next();
return s;
}
else if (ch == '\\')
{
switch (this.next())
{
case 'b' :
s += '\b';
break;
case 'f' :
s += '\f';
break;
case 'n' :
s += '\n';
break;
case 'r' :
s += '\r';
break;
case 't' :
s += '\t';
break;
case 'u' :
u = 0;
for (i = 0; i < 4; i += 1)
{
t = parseInt(this.next(), 16);
if (!isFinite(t))
{
outer = true;
break;
}
u = u * 16 + t;
}
if (outer)
{
outer = false;
break;
}
s += String.fromCharCode(u);
break;
default :
s += ch;
}
}
else
{
s += ch;
}
}
}
this.error("Bad string");
}
function arr()
{
var a = [];
if (ch == '[')
{
this.next();
this.white();
if (ch == ']')
{
this.next();
return a;
}
while (ch)
{
a.push(this.value());
this.white();
if (ch == ']')
{
this.next();
return a;
}
else if (ch != ',')
{
break;
}
this.next();
this.white();
}
}
this.error("Bad array");
}
function obj()
{
var k, o = {};
if (ch == '{')
{
this.next();
this.white();
if (ch == '}')
{
this.next();
return o;
}
while (ch)
{
k = this.str();
this.white();
if (ch != ':')
{
break;
}
this.next();
o[k] = this.value();
this.white();
if (ch == '}')
{
this.next();
return o;
}
else if (ch != ',')
{
break;
}
this.next();
this.white();
}
}
this.error("Bad object");
}
function num()
{
var n = '', v;
if (ch == '-')
{
n = '-';
this.next();
}
while (ch >= '0' && ch <= '9')
{
n += ch;
this.next();
}
if (ch == '.')
{
n += '.';
this.next();
while (ch >= '0' && ch <= '9')
{
n += ch;
this.next();
}
}
if (ch == 'e' || ch == 'E')
{
n += ch;
this.next();
if (ch == '-' || ch == '+')
{
n += ch;
this.next();
}
while (ch >= '0' && ch <= '9')
{
n += ch;
this.next();
}
}
v = Number(n);
if (!isFinite(v))
{
this.error("Bad number");
}
return v;
}
function word()
{
switch (ch)
{
case 't' :
if (this.next() == 'r' && this.next() == 'u' && this.next() == 'e')
{
this.next();
return true;
}
break;
case 'f' :
if (this.next() == 'a' && this.next() == 'l' && this.next() == 's' && this.next() == 'e')
{
this.next();
return false;
}
break;
case 'n' :
if (this.next() == 'u' && this.next() == 'l' && this.next() == 'l')
{
this.next();
return null;
}
break;
}
this.error("Syntax error");
}
function value()
{
this.white();
switch (ch)
{
case '{' :
return this.obj();
case '[' :
return this.arr();
case '"' :
return this.str();
case '-' :
return this.num();
default :
return ch >= '0' && ch <= '9' ? this.num() : this.word();
}
}
function parse(_text:String):Object
{
text = _text;
at = 0;
ch = ' ';
return value();
}
}