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问题 There's something very weird on my server- chrome won't play mp3 files on it. for example, when chrome is pointed to an mp3 file on first server: http://tinyurl.com/czqfw5a - it won't play. When I place the same file on my second server: http://tinyurl.com/cju4yg4 - it works fine. I checked http response headers, on both servers it looks fine- mime type is set correctly. The problem happens only with chrome. ff / ie work fine. Anyone have an idea? 回答1: Short story , it's this bug: http://code

问题 How would I get the number of fields/entries in a database using an SQL Statement? 回答1: mmm all the fields in all the tables? assuming standards (mssql, mysql, postgres) you can issue a query over information_schema.columns SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS Or grouped by table: SELECT TABLE_NAME, COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS GROUP BY TABLE_NAME If multiple schemas has the same table name in the same DB, you MUST include schema name as well (i.e: dbo.Books, user.Books

问题 I am new to AngularJS and am still learning but I didn't see this question asked anywhere on this site. I am building a traditional html/php list website that passes data such as a list id from an index page to a list page (listr.npctimes.com). After some initial playing with angularJS I realized that it's strength is on a single page web app so I stopped trying to fit it with the entire site and want to create a web app for the user to modify the selected list on the list page. Unfortunately

问题 Using RCurl's getForm function, which is the only nice way of passing in GET-parameters, I need to alter some http headers. In getURI, you just pass httpheader = c(Whatever='whatever',...) and it'll work. Unfortunately, that argument seems to be ignored by getForm . How do I set the http headers in a getForm request? 回答1: Welcome to the confusing world of RCurl ! You've discovered that its syntax makes no sense, which is not your fault. In getForm you pass headers as the second argument (the

问题 I have a JSP that dynamically sets the page header of my application. However, I want to be able to call the REST Service that gets user details based on the system user. I already have the system user value but need to call the backend service to get the details from the database. This is already implemented but I don't know how to setup the JSP to do this. I do not want to use javascript as this is being used for the extjs side of things. 回答1: In order to call REST from JSP, you could

问题 I have one problem , I want to get some data from XML file (if I can say that it is XML file), with jQuery: This is my jQuery, it works with normal XML file : $.ajax({ type: "GET", url: "test.xml", dataType: "xml", success: function(xml) { $(xml).find('result').each(function(){ var bid = $(this).find('bid').text(); alert(bid); }); } }); But this is the data: <string xmlns="http://schemas.microsoft.com/2003/10/Serialization/"> <?xml version="1.0" ?> <T_transmission> <result> <last>9.9200</last

问题 Angular 2 with Codeigniter Hello World Program running perfectly. But I am getting error "Unexpected end of JSON input" while sending Http get request from Angular 2 to Codeigniter Controller "Entry.php" Plunker code is at this link: https://plnkr.co/edit/MHVVkWwFqEggqSI5b6B2?p=info Same code is pasted here also: app.module.ts import { NgModule } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { HttpModule } from "@angular/http"; import { AppComponent }

问题 I have groupId , artifactId and version . How do i write a GET request using Nexus Rest API in order to get further artifact description? 回答1: Not sure what information you're looking for. The REST API doco is availble here: Core API Lucene API Examples Obtain the repository id You're starting with: groupId , artifactId , version : $ curl --silent 'http://repository.sonatype.org/service/local/lucene/search?g=log4j&a=log4j&v=1.2.16' | grep repositoryId <repositoryId>central-proxy</repositoryId

问题 I'm trying for the life of me to get this plugin to work but I'm not understanding the status function so retry is not firing. $.poll(10000, function(retry){ $.get('willfail', function(response, status){ if (status == 'success') { // Do something alert("YES"); } else { alert("NO"); //retry(); } }) }) If I set the get request to '/' it will give me the alert YES message, but as it is, the alert No message never gets fired despite the ELSE. I'm using a jquery polling plugin: https://github.com

问题 I am having this problem I enabled the webservice from prestashop and I can access it if I write the URL directly passing the parameter from post method http://underwearstudio.mx/pruebas/api?&ws_key="mykey". But If I try to access without passing the ws_key as parameter it keeps asking me to authenticate. From what I read when authentication is prompted you need to use the API key as username and leave the blank password, but it just keeps prompting the authentication. What can I do? I was