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可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Hi I'm trying to use HikariCP with Spring for connection pool. I'm using jdbcTempLate and JdbcdaoSupport. This is my spring configuration file for datasource: But unfortunately the following error message is generating: Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in ServletContext resource [/WEB-INF/dispatcher-servlet.xml]: Instantiation of bean failed; nested exception is

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: In Ruby, I can define a method foo=(bar): irb(main):001:0> def foo=(bar) irb(main):002:1> p "foo=#{bar}" irb(main):003:1> end => nil Now I'd like to check if it has been defined, irb(main):004:0> defined?(foo=) SyntaxError: compile error (irb):4: syntax error, unexpected ')' from (irb):4 from :0 What is the proper syntax to use here? I assume there must be a way to escape "foo=" such that it is parsed and passed correctly to the defined? operator. 回答1: The problem is that the foo= method is designed to be used in assignments. You can use

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: [Sally] $ run [info] Updating {file:/Users/MyName/Desktop/sally/todolist/}Sally... Waiting for lock on /Users/MyName/Documents/play-2.1.3/repository/.sbt.ivy.lock to be available... Sally is my project's name. I am learning how to use play. Yesterday It was all awesome. Today when I woke up and opened my computer, everything went to hell. I kept seeing this message when I try to run the program. What is this lock anyway? Should I uninstall/remove the framework and reinstall it?? (Btw how do I do that?) 回答1: Just remove the .lock file. It is

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: im trying to build libxml2 from source on my mac. so i have autoconf libtool and automake installed using mac ports autoconf and automake seem to be working fine as expected. i try running autogen.sh first. libtoolize --version unfortunately gives -bash: libtoolize: command not found i try running (again) sudo port install libtool ---> Cleaning libtool ---> Scanning binaries for linking errors: 100.0% ---> No broken files found. i try locate libtool and it seems to be installed fine /Applications/Xcode.app/Contents/Developer/Platforms

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I was wondering what the 'this' value (or invocation context) is of the forEach callback function. This code doesn't seem to work: var jow = [5, 10, 45, 67]; jow.forEach(function(v, i, a){ this[i] = v + 1; }); alert(jow); Thx for explaining it to me. 回答1: MDN states: array.forEach(callback[, thisArg]) If a thisArg parameter is provided to forEach, it will be used as the this value for each callback invocation as if callback.call(thisArg, element, index, array) was called. If thisArg is undefined or null, the this value within the function

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have 3 domain names and am trying to host all 3 sites on one server (a Digital Ocean droplet) using Nginx. mysite1.name mysite2.name mysite3.name Only 1 of them works. The other two result in 403 errors (in the same way). In my nginx error log, I see: [error] 13108#0: *1 directory index of "/usr/share/nginx/mysite2.name/live/" is forbidden . My sites-enabled config is: server { server_name www.mysite2.name; return 301 $scheme://mysite2.name$request_uri; } server { server_name mysite2.name; root /usr/share/nginx/mysite2.name/live/; index

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I read the following question that has relevance, but the replies didn't satify me: MySQL: #126 - Incorrect key file for table The problem When running a query I get this error ERROR 126 (HY000): Incorrect key file for table` The question When I'm trying to find the problem I cant't find one, so I don't know how to fix it with the repair command. Is there any pointers to how I can find the problem causing this issue in any other way then I already have tried? The query mysql> SELECT -> Process.processId, -> Domain.id AS domainId, -> Domain

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: My app keeps coming up with a "Semantic Error" and keeps freezing/crashing.Everything seems to be stringed together fine and it launches without problem. TextFields work fine but as soon as I click anything else it fails and forces out. Any recommendations? h. @interface ViewController : UIViewController { IBOutlet UITextField *buy1; IBOutlet UITextField *sell1; IBOutlet UILabel *percentage1; IBOutlet UILabel *profit1; IBOutlet UITextField *royalty; IBOutlet UITextField *buy2; IBOutlet UILabel *sell2; IBOutlet UITextField *percentage2;

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Intro I'm sending POST request to server which responses with chunked messages. So I'm trying to make writecallback being called on each received chunked http message. Code #include <iostream> #include <string> #include <curl/curl.h> using namespace std; size_t write_callback(char *d, size_t n, size_t l, void *userp) { cerr << ""--- Called once" << endl; return n*l; } string xml_msg() { return "<<some request data>>"; } curl_slist* get_header(size_t content_length) { auto list = curl_slist_append(nullptr, "<<protocol version>>"); list = curl

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am converting one of my apps to Gradle and would like to use the new build flavor features to have a paid and a free ad based flavor. I want only the ad based version to depend on the admob SDK. My build file looks like this: buildscript { repositories { mavenCentral() } dependencies { classpath 'com.android.tools.build:gradle:0.5.+' } } apply plugin: 'android' repositories { mavenCentral() } android { compileSdkVersion 18 buildToolsVersion "18.0.1" defaultConfig { minSdkVersion 10 targetSdkVersion 18 } productFlavors { Pro { packageName