最近在用.net core写一个爬虫抓取网页上的数据,碰到了网页编码是GBK的页面,抓取的数据都是乱码,当使用Encoding.GetEncoding("GBK")的时候抛出了异常: 'GBK' is not a supported encoding name. For information on defining a custom encoding, see the documentation for the Encoding.RegisterProvider method.Par
有些时候,<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>会报错,错误提示为: Can not find the tag library descriptor for "http://java.sun.com/jsp/jstl/core" 主要原因是缺少 jstl.jar standard.jar 两个Jar包 如果还不行,请调整jstl.jar 版本,
今天在生成一个项目的时候,生成报错,错误如下:The current .NET SDK does not support targeting .NET Core 2.1. Either target .NET Core 1.1 or lower, or use a version of the .NET SDK that supports .NET Core 2.1." 使用的最新的visual studio2017 15.7.4. 我电脑上安装了.net core 2.1.100.2.1.1
错误一: 程序完整报错: A second operation started on this context before a previous operation completed. This is usually caused by different threads using the same instance of DbContext, however instance members are not guaranteed to be thread safe. This could
新建core collection2后,启动solr服务,访问solr web界面报错. HTTP Status 503 - Server is shutting down or failed to initialize 翻译为 HTTP状态503 -服务器已关闭或初始化失败 错误原因: copy索引库后,记得要进行该 core.properties , name=collection2 你是否忘记改了呢?反正我忘记了,改完之后,访问没问题了.
Junit报错 log4j:WARN No appenders could be found for logger (org.springframework.core.env.StandardEnvironment). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
报错代码:django.core.exceptions.ImproperlyConfigured: Requested setting DEFAULT_INDEX_TABLESPACE, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settin
我这是个新装的服务器,没有安装任何软件. 一.发布流程 1.安装AspNetCoreModule托管模块,同时会自动安装..net core runtime DotNetCore.2.0.8-WindowsHosting.exe https://docs.microsoft.com/en-us/aspnet/core/host-and-deploy/iis/index?view=aspnetcore-2.0 2.重启电脑,或者使用如下命令重启IIS net stop was /y net s
完整报错信息如下 django.core.exceptions.ImproperlyConfigured: Requested setting DEFAULT_INDEX_TABLESPACE, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing se