delphi http post请求后台,获取json数据

本文提供了一个使用 Delphi 发起 HTTP POST 请求的示例代码,通过 SuperObject 库实现与服务器的数据交互。示例展示了如何设置请求头、发送参数及处理响应。
unit unHttp;

interface

uses
  superobject;

type
  TCallback = procedure(errMsg: string) of object;
function post(url: string; params: string; callback: TCallback): ISuperObject;

implementation

uses msxml, System.Variants;

function post(url: string; params: string; callback: TCallback): ISuperObject;
var
  req: IXMLHttpRequest;
  jsObj: ISuperObject;
  i: Integer;
begin
  req := CoXMLHTTP.Create;
  req.open('POST', url, false, EmptyParam, EmptyParam);
  req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
  req.send(params);
  jsObj := SO(req.responseText);
  if jsObj.i['retid'] = 0 then
  begin
    callback(jsObj.S['retmsg']);
    result := nil;
  end
  else
    result := jsObj.O['data'];
end;

end.

调用示例,中文无须编码,返回结果无须转码,请求后台utf8编码数据

var
  jsRet: ISuperObject;
begin
  jsRet := post('http://xxx.cn','f=order_test1&p=[{"token":"23115683430a3ed168dc4c76d87bbc8f","name":"我是参数"}]',callback);
  if Assigned(jsRet) then  
  Writeln(jsRet.AsString);
end;

 

转载于:https://www.cnblogs.com/lobtao/articles/7490369.html

DELPHI彫和JSON代码* Copyright (c) 2006,2007,2008,2009 Leonid Koninin * leon_kon@users.sourceforge.net * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of the nor the * names of its contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Leonid Koninin ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL Leonid Koninin BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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