IBatis.net在多线程中报错“WebSessionStore: Could not obtain reference to HttpContext” 分析: 因为ibatis的ISqlMapSession是存储在Http.Request.Items上的,在你新开的线程里是不能操作IIS的上的线程的,根据ibatis的文档上说的,可以用:HybridWebThreadSessionStore The DatatMapper component store his working ISqlMa…

一.SqlMapper类 Ibatis中,加载.分析配置以及映射文件是在创建SqlMapper实例的时候进行的,另外对数据库的操作,也是在SqlMapper实例上调用方法来完成.在IBatis外部的程序中,创建SqlMapper的实例的方式是: ISqlMapper mapper = Mapper.Instance(); 在第一次调用Mapper.Instance()的时候,由DomSqlMapBuilder对象解析SqlMap.config(默认路径和命名)文件来创建SqlMapper实例,然…

ibatis是一个挺不错的半自动orm框架,从java移植到c# 在ibatis中是支持多线程操作的,但是这几天的使用过程中发现就框架本身任然存在一些问题,可能会让你对多线程的使用并不是那么的顺利 在我们查询了ibatis的帮助手册后,不难找到这样一段内容 由此我们可以知道在使用sqlmapper时,我们对sqlmapper.sessionstore进行初始化HybridWebThreadSessionStore便可以进行多线程的使用,原理是什么呢?让我们下面来进行分析 首先ibatis定义了I…

Ibatis中,加载.分析配置及映射文件是在创建SqlMapper实例的时候进行的,另外对数据库的操作,也是在SqlMapper实例上调用方法来完成.创建SqlMapper的实例的方式是: ISqlMapper mapper = Mapper.Instance(); //DomSqlMapBuilder builder = new DomSqlMapBuilder(); //ISqlMapper mapper = builder.Configure(); 在第一次调用Mapper.Instanc…

https://docs.microsoft.com/en-us/dotnet/api/system.web.httpcontext?view=netframework-4.8 Encapsulates all HTTP-specific information about an individual HTTP request. Remarks Classes that inherit the IHttpModule and IHttpHandler interfaces are provide…

1)Jxl是一个开源的Java Excel API项目,通过Jxl,Java可以很方便的操作微软的Excel文档.除了Jxl之外,还有Apache的一个POI项目,也可以操作Excel,两者相比之下:Jxl使用方便,但功能相对POI比较弱. 2)jxl.dll据说是一个韩国人写的,并且是用java语言写的.是通过一个ikvm的工具转换为jxl.dll供windows平台使用的.具体可以参照下面两个链接内容: http://www.splinter.com.au/using-java-librar…

6. IoC容器 6.1 Spring IoC容器和bean介绍 这一章节介绍了Spring框架的控制反转(IoC)实现的原理.IoC也被称作依赖注入(DI).It is a process whereby objects define their dependencies, that is, the other objects they work with, only through constructor arguments, arguments to a factory method, o…

Transport API核心: Channel介面 类图表示Channel含有Pipeline和Config接口,pipeline上一节有所介绍. Channel是线程安全的,这表示在多线环境下操作同一个Channel.不会有数据问题. final Channel channel = null; final ByteBuf buf = Unpooled.copiedBuffer("your data", CharsetUtil.UTF_8); // #1 Runnable write…

本章内容 Transports(传输) NIO(non-blocking IO,New IO), OIO(Old IO,blocking IO), Local(本地), Embedded(嵌入式) Use-case(用例) APIs(接口) 网络应用程序一个非常重要的工作是数据传输.数据传输的过程不一样取决是使用哪种交通工具,可是传输的方式是一样的:都是以字节码传输. Java开发网络程序数据传输的过程和方式是被抽象了的,我们不须要关注底层接口.仅仅须要使用Java API或其它网络框架如Net…

1. Dependency Injection Answer: Any application is composed of many objects that collaborate with each other to perform some useful stuff. Traditionally each object is responsible for obtaining its own references to the dependent objects (dependencie…

本文介绍在Eclipse里如何配置一个简单的基于Eclipse Equinox OSGi实现的Web应用程序,在它的基础上可以构造更加复杂的应用,本文使用的是Eclipse 3.3.1版本,如果你的Eclipse版本在3.2.0或以上应该都可以. 51CTO编辑推荐:OSGi入门与实践全攻略 一.支持静态页面和Servlet 1. 创建一个新的plugin项目, net.bjzhanghao.osgi.test,在向导第一步里选中"This plug-in is target,在下一步的&quo…

Spring Boot Reference Guide Authors Phillip Webb, Dave Syer, Josh Long, Stéphane Nicoll, Rob Winch, Andy Wilkinson, Marcel Overdijk, Christian Dupuis, Sébastien Deleuze, Michael Simons, VedranPavić, Jay Bryant 2.0.0.BUILD-SNAPSHOT Copyright © 2012-20…

ePass1000 Full ActiveX Control Reference Manual Version 2.0 Error Code Value Return Status Description Value(HEX) Value(DEC) FT_COMMUNICATIONS_ERROR Exception occured during transfer data between device and driver. Driver recerved an invalid response…

Reference Genome Components 1. GRCh38 is special because it has alternate contigs that represent population haplotypes. Don't know alternate contig from alternate dimension? Spend five minutes now to review terminology in our Dictionary entryReferenc…

1. Introduction The Springfox suite of java libraries are all about automating the generation of machine and human readable specifications for JSON APIs written using the spring family of projects. Springfox works by examining an application, once, a…

[TestMethod] [HostType("ASP.NET")] [UrlToTest("http://localhost:25153/qq/a.aspx")] [AspNetDevelopmentServerHost(@"C:\Users\Public\Documents\ooooooo", "/")] public void Test1() { var url = HttpContext.Current.Request…

Exception Handling Statements (C# Reference) C# provides built-in support for handling anomalous situations, known as exceptions, which may occur during the execution of your program. These exceptions are handled by code that is outside the normal fl…

(Sorry for that click-bait heading. Couldn’t resist ;-) ) We’re on a mission. To teach you SQL. But mostly, we want to teach you how to appreciate SQL. You’ll love it! Getting SQL right or wrong shouldn’t be about that You’re-Doing-It-Wrong™ attitude…

Skip Headers Oracle Global Finanicals Oracle Global Financials Technical Reference Manual Release 11i         Globalization Flexfields This document describes the globalization flexfields that store certain pieces of country- and region-specific info…

===================== Model field reference ===================== .. module:: django.db.models.fields :synopsis: Built-in field types. .. currentmodule:: django.db.models This document contains all the API references of :class:Field including the fie…

Skip Headers Oracle Global Finanicals Oracle Global Financials Technical Reference Manual Release 11i         Globalization Flexfields This document describes the globalization flexfields that store certain pieces of country- and region-specific info…

Preface Validating data is a common task that occurs throughout all application layers, from the presentation to the persistence layer. Often the same validation logic is implemented in each layer which is time consuming and error-prone. To avoid dup…

openssl 1.1.1 include/openssl aes.h: # define HEADER_AES_H aes.h: # define AES_ENCRYPT 1 aes.h: # define AES_DECRYPT 0 aes.h: # define AES_MAXNR 14 aes.h: # define AES_BLOCK_SIZE 16 aes.h: struct aes_key_st { aes.h: unsigned long rd_key[4 * (AES_MAXN…

include/openssl aes.h: struct aes_key_st { aes.h: unsigned long rd_key[4 * (AES_MAXNR + 1)]; aes.h: unsigned int rd_key[4 * (AES_MAXNR + 1)]; aes.h: const char *AES_options(void); aes.h: int AES_set_encrypt_key(const unsigned char *userKey, const int…

1. Introduction 1.1. About 1.2. Sphinx features 1.3. Where to get Sphinx 1.4. License 1.5. Credits 1.6. History 2. Installation 2.1. Supported systems 2.2. Compiling Sphinx from source 2.2.1. Required tools 2.2.2. Compiling on Linux 2.2.3. Known comp…

A circular reference is a series of references where the last object references the first, resulting in a closed loop.   Circular reference (in red) Contents 1In language 2In computer programming 3In spreadsheets 4See also 5References In language[edi…

The achievable accuracy for systems with multiple ADCs depends directly on the reference voltages applied to the ADCs. Medical-ultrasound-imaging systems, for example, commonly include a large number of ADCs in the system's beam-former electronics, w…

本文转自:http://www.spaprogrammer.com/2015/07/mvc-6-httpcontextcurrent.html As you know with MVC 6, HttpContext is rewritten and one of the most used functionality , HttpContext.Current is dropped. In most situations you don’t need this and you should us…

ylbtech-.NETFramework:HttpContext 1.返回顶部 1. #region 程序集 System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a // C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\System.Web.dll #endregion usin…

14.6 InnoDB Table Management 14.6.1 Creating InnoDB Tables 14.6.2 Moving or Copying InnoDB Tables to Another Machine 14.6.3 Grouping DML Operations with Transactions 14.6.4 Converting Tables from MyISAM to InnoDB 14.6.5 AUTO_INCREMENT Handling in Inn…