查看Json输出的*最方便*的方法 (转) |
本文标签:Json,输出 不用耗费额外的精力随时查看Json输出 “不用耗费额外的精力”指的是:当需要查看Json输出时,只要转转眼球(可能至少还需要点两下鼠标,恐怕)就能很快找到想看的结果 。 查看Json输出的方法很多,我们所能找的最接近这个目标的方案是“Fiddler2+JsonViewer插件+自定义Fiddler2过滤条件” 。想要查看Json输出时,只要先将Fiddler运行起来,然后在浏览器里正常操作Web页面,就可以在Fiddler里面看到截获的Json输出了,效果如下图所示 。 ![]() 安装Fiddler2+JsonViewer插件 Fiddler2是一款老牌Web调试工具 。下载、安装之后,通过点击“开始|程序|Fiddler2”或点击IE的菜单“工具|Fiddler2”将其运行起来后,它会自动把自己注册成IE的代理服务器,从而截获任何经过IE的请求/应答;当关闭它时,它又会自动把代理服务器配置取消(当年使用Fiddler1的时候,还得自己添加代理服务器配置,很麻烦的说) 。 复制代码 代码如下: <configuration> <runtime> <generatePublisherEvidence enabled="false"/> <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"> <probing privatePath="Inspectors" /> </assemblyBinding> </runtime> </configuration> 注意 IE7 和 .NET Framework 被硬编码成只要是对localhost的请求,就不通过代理服务器 。所以像“http://localhost:8000/Default.aspx”这样的请求不会被Fiddler2截获 。解决方法是:1) 将“localhost”替换成“localhost.”,如“http://localhost.:8000/Default.aspx”;2) 将“localhost”替换成本机IP地址,如“http://172.16.75.78:8000/Default.aspx” 。 现在,让我们把Fiddler2运行起来,再操作一下页面,就可以在Fiddler2窗体左侧的“Web Sessions”列表里看到一大堆请求/应答 。点击返回Json的那一条,再点击进入右侧的“Inspectors”、“Json”Tab页,就可以了 。只是,Fiddler2默认会把所有经过IE的任何请求/应答全都显示出来,这样一来,“Web Sessions”列表里的东东就嫌太多了,能不能把与Json不相干的东东全部过滤掉呢?这个并不难,只要在Fiddler2的“CustomRules”里面增加几行代码就可以了 。 自定义过滤条件 点击Fiddler2的菜单“Rules|Customize Rules...”,会自动由记事本打开可添加自定义规则的代码文件 。 在第81行增加如下代码,目的是在Fiddler2的Rules菜单里增加一个“只显示Json”的菜单项: // jcl20091121 public static RulesOption("只显示 &Json") var m_ShowJsonOnly: boolean = false; 在OnBeforeResponse事件里增加如下代码,意思是如果“Rules|只显示Json”菜单项被选中了,就过滤掉所有Content-Type!="application/json; charset=utf-8"的应答 。 复制代码 代码如下: // jcl:2009-11-21 if(m_ShowJsonOnly) { //MessageBox.Show(oSession.oResponse.headers.Item("Content-Type").ToString()); if (!oSession.oResponse.headers.ExistsAndContains("Content-Type", "application/json; charset=utf-8")) { oSession["ui-hide"] = "hide"; // String value not important } } 所有源码在此: 自定义规则 复制代码 代码如下: import System; import System.Windows.Forms; import Fiddler; // GLOBALIZATION NOTE: // Be sure to save this file with UTF-8 Encoding if using any non-ASCII characters // in strings, etc. // // JScript Reference // http://www.fiddler2.com/redir/?id=msdnjsnet // // FiddlerScript Reference // http://www.fiddler2.com/redir/?id=fiddlerscriptcookbook // // FiddlerScript Editor: // http://www.fiddler2.com/redir/?id=fiddlerscripteditor class Handlers { // The following snippet demonstrates a custom-bound column for the web sessions list. // See http://www.fiddler2.com/fiddler/help/configurecolumns.asp for more info //public static BindUIColumn("Method", 60) //function FillMethodColumn(oS: Session){ // if ((oS.oRequest != null) && (oS.oRequest.headers != null)) // return oS.oRequest.headers.HTTPMethod; else return String.Empty; //} public static RulesOption("Hide 304s") var m_Hide304s: boolean = false; // Cause Fiddler to override the Accept-Language header with one of the defined values public static RulesOption("Request &Japanese Content") var m_Japanese: boolean = false; // Cause Fiddler to override the User-Agent header with one of the defined values RulesString("&User-Agents", true) RulesStringValue(0,"Netscape &3", "Mozilla/3.0 (Win95; I)") RulesStringValue(1,"&IEMobile", "Mozilla/4.0 (compatible; MSIE 6.0; Windows CE; IEMobile 6.12)") RulesStringValue(2,"&Safari (XP)", "Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US) AppleWebKit/531.9 (KHTML, like Gecko) Version/4.0.3 Safari/531.9.1") RulesStringValue(3,"IE &6 (XPSP2)", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)") RulesStringValue(4,"IE &7 (Vista)", "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1)") RulesStringValue(5,"IE &8 (Win2k3 x64)", "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; WOW64; Trident/4.0)") RulesStringValue(6,"IE 8 (Win7)", "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0)") RulesStringValue(7,"IE 8 (IE7 CompatMode)", "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0)") RulesStringValue(8,"&Opera 10", "Opera/9.80 (Windows NT 5.2; U; en) Presto/2.2.15 Version/10.00") RulesStringValue(9,"&Firefox 2", "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.10) Gecko/20071115 Firefox/2.0.0.10") RulesStringValue(10,"&Firefox 3.5", "Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3") RulesStringValue(10,"&Firefox (Mac)", "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3") RulesStringValue(12,"Chrome", "Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US) AppleWebKit/532.0 (KHTML, like Gecko) Chrome/3.0.195.24 Safari/532.0") RulesStringValue(13,"&Custom", "%CUSTOM%") public static var sUA: String = null; // Cause Fiddler to delay HTTP traffic to simulate typical 56k modem conditions public static RulesOption("Simulate &Modem speeds", "Per&formance") var m_SimulateModem: boolean = false; // Removes HTTP-caching related headers and specifies "no-cache" on requests and responses public static RulesOption("&Disable Caching", "Per&formance") var m_DisableCaching: boolean = false; // Show the duration between the start of Request.Send and Response.Completed in Milliseconds public static RulesOption("&Show Time-to-Last-Byte", "Per&formance") var m_ShowTTLB: boolean = false; // Show the time of response completion public static RulesOption("Show Response &Timestamp", "Per&formance") var m_ShowTimestamp: boolean = false; // Create a new option on the Rules menu. Set the default value for the option. public static RulesOption("&UNTITLED") var m_bUNTITLED: boolean = false; // Create a new item on the Tools menu. public static ToolsAction("&UNTITLED") function DoUNTITLED(oSessions: Fiddler.Session[]){ // Write your code here } // jcl20091121 public static RulesOption("只显示 &Json") var m_ShowJsonOnly: boolean = false; // Force a manual reload of the script file. Resets all // RulesOption variables to their defaults. public static ToolsAction("Reset Script") function DoManualReload(){ FiddlerObject.ReloadScript(); } public static ContextAction("Decode Selected Sessions") function DoRemoveEncoding(oSessions: Session[]){ for (var x = 0; x < oSessions.Length; x++){ oSessions[x].utilDecodeRequest(); oSessions[x].utilDecodeResponse(); } } static function OnBoot(){ // MessageBox.Show("Fiddler has finished booting"); // System.Diagnostics.Process.Start("iexplore.exe"); // FiddlerObject.UI.ActivateRequestInspector("HEADERS"); // FiddlerObject.UI.ActivateResponseInspector("HEADERS"); } static function OnShutdown(){ // MessageBox.Show("Fiddler has shutdown"); } static function OnAttach(){ // MessageBox.Show("Fiddler is now the system proxy"); // System.Diagnostics.Process.Start("proxycfg.exe", "-u"); // Notify WinHTTP of proxy change } static function OnDetach(){ // MessageBox.Show("Fiddler is no longer the system proxy"); // System.Diagnostics.Process.Start("proxycfg.exe", "-u"); // Notify WinHTTP of proxy change } static function OnBeforeRequest(oSession: Session) { // Sample Rule: Color ASPX requests in RED // if (oSession.uriContains(".aspx")) { oSession["ui-color"] = "red"; } // Sample Rule: Flag POSTs to fiddler2.com in italics // if (oSession.HostnameIs("www.fiddler2.com") && oSession.HTTPMethodIs("POST")) { oSession["ui-italic"] = "yup"; } // Sample Rule: Break requests for URLs containing "/sandbox/" // if (oSession.uriContains("/sandbox/")){ // oSession.oFlags["x-breakrequest"] = "yup"; // Existence of the x-breakrequest flag creates a breakpoint; the "yup" value is unimportant. // } if ((null != gs_ReplaceToken) && (oSession.url.indexOf(gs_ReplaceToken)>-1)){ // Case sensitive oSession.url = oSession.url.Replace(gs_ReplaceToken, gs_ReplaceTokenWith); } if ((null != gs_OverridenHost) && (oSession.host.toLowerCase() == gs_OverridenHost)){ oSession["x-overridehost"] = gs_OverrideHostWith; } if ((null!=bpRequestURI) && oSession.uriContains(bpRequestURI)){ oSession["x-breakrequest"]="uri"; } if ((null!=bpMethod) && (oSession.HTTPMethodIs(bpMethod))){ oSession["x-breakrequest"]="method"; } if ((null!=uiBoldURI) && oSession.uriContains(uiBoldURI)){ oSession["ui-bold"]="QuickExec"; } if (m_SimulateModem){ // Delay sends by 300ms per KB uploaded. oSession["request-trickle-delay"] = "300"; } if (m_DisableCaching){ oSession.oRequest.headers.Remove("If-None-Match"); oSession.oRequest.headers.Remove("If-Modified-Since"); oSession.oRequest["Pragma"] = "no-cache"; } // User-Agent Overrides if (null != sUA){ oSession.oRequest["User-Agent"] = sUA; } if (m_Japanese){ oSession.oRequest["Accept-Language"] = "ja"; } } static function OnBeforeResponse(oSession: Session) { if (m_SimulateModem){ // Delay receives by 150ms per KB downloaded. oSession["response-trickle-delay"] = "150"; } if (m_DisableCaching){ oSession.oResponse.headers.Remove("Expires"); oSession.oResponse["Cache-Control"] = "no-cache"; } if (m_ShowTimestamp){ oSession["ui-customcolumn"] = DateTime.Now.ToString("H:mm:ss.ffff") + " " + oSession["ui-customcolumn"]; } if (m_ShowTTLB){ oSession["ui-customcolumn"] = oSession.oResponse.iTTLB + "ms " + oSession["ui-customcolumn"]; } if (m_Hide304s && oSession.responseCode == 304){ oSession["ui-hide"] = "true"; } if ((bpStatus>0) && (oSession.responseCode == bpStatus)){ oSession["x-breakresponse"]="status"; } if ((null!=bpResponseURI) && oSession.uriContains(bpResponseURI)){ oSession["x-breakresponse"]="uri"; } // jcl:2009-11-21 if(m_ShowJsonOnly) { //MessageBox.Show(oSession.oResponse.headers.Item("Content-Type").ToString()); if (!oSession.oResponse.headers.ExistsAndContains("Content-Type", "application/json; charset=utf-8")) { oSession["ui-hide"] = "hide"; // String value not important } } // Uncomment to reduce incidence of "unexpected socket closure" exceptions in .NET code. // Note that you really should also fix your .NET code to gracefully handle unexpected connection closure. // // if (!(((oSession.responseCode == 401) && oSession.oResponse["WWW-Authenticate"].Length > 9) || // ((oSession.responseCode == 407) && oSession.oResponse["Proxy-Authenticate"].Length > 9))) { // oSession.oResponse["Connection"] = "close"; // } } static function Main() { var today: Date = new Date(); FiddlerObject.StatusText = " CustomRules.js was loaded at: " + today; // Uncomment to add a "Server" column containing the response "Server" header, if present // FiddlerObject.UI.lvSessions.AddBoundColumn("Server", 50, "@response.server"); } // These static variables are used for simple breakpointing & other QuickExec rules static var bpRequestURI:String = null; static var bpResponseURI:String = null; static var bpStatus:int = -1; static var bpMethod: String = null; static var uiBoldURI: String = null; static var gs_ReplaceToken: String = null; static var gs_ReplaceTokenWith: String = null; static var gs_OverridenHost: String = null; static var gs_OverrideHostWith: String = null; // The OnExecAction function is called by either the QuickExec box in the Fiddler window, // or by the ExecAction.exe command line utility. static function OnExecAction(sParams: String[]){ FiddlerObject.StatusText = "ExecAction: " + sParams[0]; var sAction = sParams[0].toLowerCase(); switch (sAction){ case "bold": if (sParams.Length<2) {uiBoldURI=null; FiddlerObject.StatusText="Bolding cleared"; return;} uiBoldURI = sParams[1]; FiddlerObject.StatusText="Bolding requests for " + uiBoldURI; break; case "bp": FiddlerObject.alert("bpu = breakpoint request for uri\nbpm = breakpoint request method\nbps=breakpoint response status\nbpafter = breakpoint response for URI"); break; case "bps": if (sParams.Length<2) {bpStatus=-1; FiddlerObject.StatusText="Response Status breakpoint cleared"; return;} bpStatus = parseInt(sParams[1]); FiddlerObject.StatusText="Response status breakpoint for " + sParams[1]; break; case "bpv": case "bpm": if (sParams.Length<2) {bpMethod=null; FiddlerObject.StatusText="Request Method breakpoint cleared"; return;} bpMethod = sParams[1].toUpperCase(); FiddlerObject.StatusText="Request Method breakpoint for " + bpMethod; break; case "bpu": if (sParams.Length<2) {bpRequestURI=null; FiddlerObject.StatusText="RequestURI breakpoint cleared"; return;} if (sParams[1].toLowerCase().StartsWith("http://")){sParams[1] = sParams[1].Substring(7);} bpRequestURI = sParams[1]; FiddlerObject.StatusText="RequestURI breakpoint for "+sParams[1]; break; case "bpafter": if (sParams.Length<2) {bpResponseURI=null; FiddlerObject.StatusText="ResponseURI breakpoint cleared"; return;} if (sParams[1].toLowerCase().StartsWith("http://")){sParams[1] = sParams[1].Substring(7);} bpResponseURI = sParams[1]; FiddlerObject.StatusText="ResponseURI breakpoint for "+sParams[1]; break; case "overridehost": if (sParams.Length<3) {gs_OverridenHost=null; FiddlerObject.StatusText="Host Override cleared"; return;} gs_OverridenHost = sParams[1].toLowerCase(); gs_OverrideHostWith = sParams[2]; FiddlerObject.StatusText="Connecting to [" + gs_OverrideHostWith + "] for requests to [" + gs_OverridenHost + "]"; break; case "urlreplace": if (sParams.Length<3) {gs_ReplaceToken=null; FiddlerObject.StatusText="URL Replacement cleared"; return;} gs_ReplaceToken = sParams[1]; gs_ReplaceTokenWith = sParams[2].Replace(" ", "%20"); // Simple helper FiddlerObject.StatusText="Replacing [" + gs_ReplaceToken + "] in URIs with [" + gs_ReplaceTokenWith + "]"; break; case "select": if (sParams.Length<2) { FiddlerObject.StatusText="Please specify Content-Type to select."; return;} FiddlerObject.UI.actSelectSessionsWithResponseHeaderValue("Content-Type", sParams[1]); MessageBox.Show(sParams[1]); FiddlerObject.StatusText="Selected sessions returning Content-Type: " + sParams[1] + "."; if (FiddlerObject.UI.lvSessions.SelectedItems.Count > 0){ FiddlerObject.UI.lvSessions.Focus(); } break; case "allbut": case "keeponly": if (sParams.Length<2) { FiddlerObject.StatusText="Please specify Content-Type to retain during wipe."; return;} FiddlerObject.UI.actSelectSessionsWithResponseHeaderValue("Content-Type", sParams[1]); MessageBox.Show(sParams[1]); FiddlerObject.UI.actRemoveUnselectedSessions(); FiddlerObject.UI.lvSessions.SelectedItems.Clear(); FiddlerObject.StatusText="Removed all but Content-Type: " + sParams[1]; break; case "stop": FiddlerObject.UI.actDetachProxy(); break; case "start": FiddlerObject.UI.actAttachProxy(); break; case "cls": case "clear": FiddlerObject.UI.actRemoveAllSessions(); break; case "g": case "go": FiddlerObject.UI.actResumeAllSessions(); break; case "help": Utilities.LaunchHyperlink("http://www.fiddler2.com/redir/?id=quickexec"); break; case "hide": FiddlerObject.UI.actMinimizeToTray(); break; case "nuke": FiddlerObject.UI.actClearWinINETCache(); FiddlerObject.UI.actClearWinINETCookies(); break; case "show": FiddlerObject.UI.actRestoreWindow(); break; case "tail": if (sParams.Length<2) { FiddlerObject.StatusText="Please specify # of sessions to trim the session list to."; return;} FiddlerObject.UI.TrimSessionList(int.Parse(sParams[1])); break; case "quit": FiddlerObject.UI.actExit(); break; case "dump": FiddlerObject.UI.actSelectAll(); FiddlerObject.UI.actSaveSessionsToZip(CONFIG.GetPath("Captures") + "dump.saz"); FiddlerObject.UI.actRemoveAllSessions(); FiddlerObject.StatusText = "Dumped all sessions to " + CONFIG.GetPath("Captures") + "dump.saz"; break; default: if (sAction.StartsWith("http") || sAction.StartsWith("www")){ System.Diagnostics.Process.Start(sAction); } else FiddlerObject.StatusText = "Requested ExecAction: " + sAction + " not found. Type HELP to learn more."; } } } 现在“Web Sessions”列表已经清爽多了,可是,如果我们想忙里偷闲,去博客园首页逛逛,就会发现“Web Sessions”列表里面多了几条博客园首页的Json输出,这是因为Fiddler2默认会截获所有经由IE的请求/应答 。能不能让它只显示本机的请求/应答呢?这个只需要配置一下Fiddler2的Filter选项就可以了,如下图所示 。 ![]() |