Jon*_*orm 5 javascript jquery greasemonkey
我正在尝试监控一个网站（www.bidcactus.com）。在网站上，我打开 Firebug，转到网络选项卡，然后单击 XHR 选项卡。
我想获取请求的响应并将其保存到 mySql 数据库（我的计算机上运行着本地数据库（XAMPP）。
有人告诉我主要使用 jQuery 或 JavaScript 来做各种事情，但我也没有经验，所以我想知道是否有人可以帮助我。
有人向我建议了这个链接 Using Greasemonkey and jQuery to截取来自页面的JSON/AJAX数据，并处理它
它也使用 Greasemonkey，我对此也不太了解......
预先感谢您的任何帮助
示例/更多细节：
在监视发送的请求时（通过 firebug）我看到下面
http://www.bidcactus.com/CactusWeb/ItemUpdates?rnd=1310684278585
The response of this link is the following:
{"s":"uk5c","a":[{"w":"MATADORA","t":944,"p":5,"a":413173,"x":10},
{"w":"1000BidsAintEnough","t":6,"p":863,"a":413198,"x":0},
{"w":"YourBidzWillBeWastedHere","t":4725,"p":21,"a":413200,"x":8},
{"w":"iwillpay2much","t":344,"p":9,"a":413201,"x":9},
{"w":"apcyclops84","t":884,"p":3,"a":413213,"x":14},
{"w":"goin_postal","t":165,"p":5,"a":413215,"x":12},
{"w":"487951","t":825,"p":10,"a":413218,"x":6},
{"w":"mishmash","t":3225,"p":3,"a":413222,"x":7},
{"w":"CrazyKatLady2","t":6464,"p":1,"a":413224,"x":2},
{"w":"BOSS1","t":224,"p":102,"a":413230,"x":4},
{"w":"serbian48","t":62,"p":2,"a":413232,"x":11},
{"w":"Tuffenough","t":1785,"p":1,"a":413234,"x":1},
{"w":"apcyclops84","t":1970,"p":1,"a":413240,"x":13},
{"w":"Tuffenough","t":3524,"p":1,"a":413244,"x":5},
{"w":"Cdm17517","t":1424,"p":1,"a":413252,"x":3}],"tau":"0"}
我了解这些信息的含义，并且我认为我可以自己对其进行格式化，但是该网站会随机创建新的请求。
示例http://www.bidcactus.com/CactusWeb/ItemUpdates?rnd=XXXXXXXXXXXX
，我不确定它是如何创建它们的。
因此，我需要获取所有项目更新请求的响应，并将信息发送到 mysql 数据库。
好的，这是工作代码，针对该网站进行了一些调整（仅首页，无帐户）。
\n使用说明：
\n安装GM脚本。请注意，目前仅限 Firefox。
\n观察它在 Firebug 控制台中的运行，并调整过滤器部分（清楚标记），以定位您感兴趣的数据。（也许是整个a数组？）
请注意，打印“Script Start”后可能需要几秒钟的时间才能启动 ajax 拦截。
\n设置您的 Web 应用程序和服务器以接收数据。该脚本发布 JSON，因此 PHP 会抓取数据，如下所示：
\n $jsonData = json_decode ($HTTP_RAW_POST_DATA);\n将脚本指向您的服务器。
\n瞧\xc3\xa0。她完成了。
\n/******************************************************************************\n*******************************************************************************\n** This script intercepts ajaxed data from the target web pages.\n** There are 4 main phases:\n** 1) Intercept XMLHttpRequest's made by the target page.\n** 2) Filter the data to the items of interest.\n** 3) Transfer the data from the page-scope to the GM scope.\n** NOTE: This makes it technically possibly for the target page's\n** webmaster to hack into GM's slightly elevated scope and\n** exploit any XSS or zero-day vulnerabilities, etc. The risk\n** is probably zero as long as you don't start any feuds.\n** 4) Use GM_xmlhttpRequest () to send the data to our server.\n*******************************************************************************\n*******************************************************************************\n*/\n// ==UserScript==\n// @name _Record ajax, JSON data.\n// @namespace stackoverflow.com/users/331508/\n// @description Intercepts Ajax data, filters it and then sends it to our server.\n// @include http://www.bidcactus.com/*\n// ==/UserScript==\n\nDEBUG = true;\nif (DEBUG) console.log ('***** Script Start *****');\n\n\n/******************************************************************************\n*******************************************************************************\n** PHASE 1 starts here, this is the XMLHttpRequest intercept code.\n** Note that it will not work in GM's scope. We must inject the code to the\n** page scope.\n*******************************************************************************\n*******************************************************************************\n*/\nfunkyFunc = ( (<><![CDATA[\n\n DEBUG = false;\n //--- This is where we will put the data we scarf. It will be a FIFO stack.\n payloadArray = []; //--- PHASE 3a\n\n (function (open) {\n XMLHttpRequest.prototype.open = function (method, url, async, user, pass)\n {\n this.addEventListener ("readystatechange", function (evt)\n {\n if (this.readyState == 4 && this.status == 200) //-- Done, & status "OK".\n {\n var jsonObj = null;\n try {\n jsonObj = JSON.parse (this.responseText); // FF code. Chrome??\n }\n catch (err) {\n //if (DEBUG) console.log (err);\n }\n //if (DEBUG) console.log (this.readyState, this.status, this.responseText);\n\n /******************************************************************************\n *******************************************************************************\n ** PHASE 2: Filter as much as possible, at this stage.\n ** For this site, jsonObj should be an object like so:\n ** { s="1bjqo", a=[15], tau="0"}\n ** Where a is an array of objects, like:\n ** a 417387\n ** p 1\n ** t 826\n ** w "bart69"\n ** x 7\n *******************************************************************************\n *******************************************************************************\n */\n //if (DEBUG) console.log (jsonObj);\n if (jsonObj && jsonObj.a && jsonObj.a.length > 1) {\n /*--- For demonstration purposes, we will only get the 2nd row in\n the `a` array. (Probably stands for "auction".)\n */\n payloadArray.push (jsonObj.a[1]);\n if (DEBUG) console.log (jsonObj.a[1]);\n }\n //--- Done at this stage! Rest is up to the GM scope.\n }\n }, false);\n\n open.call (this, method, url, async, user, pass);\n };\n } ) (XMLHttpRequest.prototype.open);\n]]></>).toString () );\n\n\nfunction addJS_Node (text, s_URL)\n{\n var scriptNode = document.createElement ('script');\n scriptNode.type = "text/javascript";\n if (text) scriptNode.textContent = text;\n if (s_URL) scriptNode.src = s_URL;\n\n var targ = document.getElementsByTagName('head')[0] || d.body || d.documentElement;\n targ.appendChild (scriptNode);\n}\n\naddJS_Node (funkyFunc);\n\n\n/******************************************************************************\n*******************************************************************************\n** PHASE 3b:\n** Set up a timer to check for data from our ajax intercept.\n** Probably best to make it slightly faster than the target's\n** ajax frequency (about 1 second?).\n*******************************************************************************\n*******************************************************************************\n*/\ntimerHandle = setInterval (function() { SendAnyResultsToServer (); }, 888);\n\nfunction SendAnyResultsToServer ()\n{\n if (unsafeWindow.payloadArray) {\n var payload = unsafeWindow.payloadArray;\n while (payload.length) {\n var dataRow = JSON.stringify (payload[0]);\n payload.shift (); //--- pop measurement off the bottom of the stack.\n if (DEBUG) console.log ('GM script, pre Ajax: ', dataRow);\n\n /******************************************************************************\n *******************************************************************************\n ** PHASE 4: Send the data, one row at a time, to the our server.\n ** The server would grab the data with:\n ** $jsonData = json_decode ($HTTP_RAW_POST_DATA);\n *******************************************************************************\n *******************************************************************************\n */\n GM_xmlhttpRequest ( {\n method: "POST",\n url: "http://localhost/db_test/ShowJSON_PostedData.php",\n data: dataRow,\n headers: {"Content-Type": "application/json"},\n onload: function (response) {\n if (DEBUG) console.log (response.responseText);\n }\n } );\n }\n }\n}\n\n\n//--- EOF\n其他注意事项：
\n我在该网站的主页上测试了它，没有登录（我不打算在那里创建帐户）。
\n我测试了AdBlock、FlashBlock、NoSCript和RequestPolicy的全部效果。bidcactus.com的 JS 已打开（必须如此），但其他的则没有。重新打开所有这些内容应该不会导致副作用——但如果确实如此，我不会对其进行调试。
\n必须针对该站点以及您浏览该站点的方式来调整这样的代码1。这取决于你。希望代码有足够的自我记录。
\n享受！
\n1主要是：@include和@exclude指令，JSON数据选择和过滤，以及iFrame是否需要阻塞。另外，建议在调整完成时DEBUG设置 2 个变量（一个用于 GM 范围，一个用于页面范围） 。false
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