<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[学习笔记]]></title><description><![CDATA[学习的这段时间，受到各位博客的很多帮助，故将自己遇到的问题解决分享之]]></description><link>https://blog.youkuaiyun.com/joy_91</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; joy_91]]></copyright><item><title><![CDATA[C++内存拷贝函数详解]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/44101965</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/44101965</guid><author>joy_91</author><pubDate>Fri, 06 Mar 2015 17:08:41 +0800</pubDate><description><![CDATA[http://www.360doc.com/content/14/0318/11/15257968_361534227.shtml



原型：void*memcpy(void*dest, const void*src,unsigned int count); 
功能：由src所指内存区域复制count个字节到dest所指内存区域。  
说明：src和dest所指内存区域不能重叠，函数]]></description><category></category></item><item><title><![CDATA[effective C++笔记：item02 尽量以const,enum,inline替换#define]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/44080273</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/44080273</guid><author>joy_91</author><pubDate>Thu, 05 Mar 2015 13:13:25 +0800</pubDate><description><![CDATA[基本原则：以编译器替换预处理器


1. 单纯常量


#define ASPECT_RATIO 1.653

该宏定义ASPECT_RATIO也许从未被编译器看见，也许在编译器开始处理源代码之前就被预处理器替换了。我们知道，宏定义在预处理阶段会进行简单地字符串替换，凡是遇到ASPECT_RATIO的地方都被替换为1.653。因此，ASPECT_RATIO是不会进入符号表(symb]]></description><category></category></item><item><title><![CDATA[ERROR：C++ 字符指针引起的段错误]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/44062109</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/44062109</guid><author>joy_91</author><pubDate>Wed, 04 Mar 2015 16:48:02 +0800</pubDate><description><![CDATA[问题：
程序编译通过，运行异常终止。
进入调试模式，报段错误。


分析：
逐行调试，在为char指针所指内容修改时出错。



原因：
char *c = "abc"

此时，无法根据指针来修改字符串内容。





//example 1:
char str[12] = "Hello"; //字符串用数组开辟的，它是可以改变的变量。

char *p]]></description><category></category></item><item><title><![CDATA[C++ 虚继承 虚函数 内存分布]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/44037957</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/44037957</guid><author>joy_91</author><pubDate>Tue, 03 Mar 2015 14:39:05 +0800</pubDate><description><![CDATA[两种实现：http://blog.youkuaiyun.com/bluedog/article/details/4711169

虚继承：http://www.oschina.net/translate/cpp-virtual-inheritance
虚函数：http://my.oschina.net/pathenon/blog/67072



当c++支持virtual base class]]></description><category></category></item><item><title><![CDATA[eclipse 4.4 tomcat plugin 安装注意点]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/42807169</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/42807169</guid><author>joy_91</author><pubDate>Sat, 17 Jan 2015 18:14:47 +0800</pubDate><description><![CDATA[版本：
eclipse 4.4.1
apache-tomcat-7.0.57


插件下载地址：
http://www.eclipsetotale.com/tomcatPlugin.html#A3



安装方法：



Download tomcatPluginVxxx.zip

Unzip it in :
- Eclipse_Home/dropins for ]]></description><category></category></item><item><title><![CDATA[JMX monitor weblogic 总结]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/42774839</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/42774839</guid><author>joy_91</author><pubDate>Fri, 16 Jan 2015 14:01:47 +0800</pubDate><description><![CDATA[weblogic server开放JMX接口，所需就是编写JMX的客户端


关于版本：
weblogic 9.0为分界。
MBean入口——之前：MBeanHome，deprecated；之后：javax.management.MBeanServerConnection 


大概步骤：
weblogic 管理服务器上维护了oracle提供的3个MBeanServer和JDK提]]></description><category></category></item><item><title><![CDATA[Explain JMXServiceURL]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/42707277</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/42707277</guid><author>joy_91</author><pubDate>Wed, 14 Jan 2015 11:21:19 +0800</pubDate><description><![CDATA[出处：http://stackoverflow.com/questions/2768087/explain-jmx-url



Suppose you have the JMX Server (alias 'JMX Agent' alias 'the JVM you want to connect to') running on 'TARGET MACHINE' with the
RM]]></description><category></category></item><item><title><![CDATA[JMX RMI相关]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/42706333</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/42706333</guid><author>joy_91</author><pubDate>Wed, 14 Jan 2015 10:58:44 +0800</pubDate><description><![CDATA[JMX trail: 
http://docs.oracle.com/javase/tutorial/jmx/index.html

Server (MBean --> Agent ) --> Client


JMX RMI example : 

http://docs.oracle.com/javase/tutorial/jmx/remote/custom.html
其中，]]></description><category></category></item><item><title><![CDATA[利用JDK开发调用web service]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/42522303</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/42522303</guid><author>joy_91</author><pubDate>Thu, 08 Jan 2015 11:29:16 +0800</pubDate><description><![CDATA[JavaSE6.0下的Web Service 

部分转自：点击打开链接

从JavaSE6.0开始，Java引入了对Web Service的原生支持。我们只需要简单的使用Java的Annotation标签即可将标准的Java方法发布成Web Service。（PS：Java Annotation资料请参考 JDK5.0 Annotation学习笔记(一) ）


但不是所有的Jav]]></description><category></category></item><item><title><![CDATA[编译：一个 C 程序的艺术之旅]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/42262667</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/42262667</guid><author>joy_91</author><pubDate>Tue, 30 Dec 2014 10:24:51 +0800</pubDate><description><![CDATA[https://bojieli.com/2014/11/c-compiler/






编译：一个 C 程序的艺术之旅

正在学习 CS50（一门 MOOC）的 @张静宁 写了一篇《【读图学 C 语言】编译时发生了什么》。她的文章更多讲的是 “what”，本文将尝试解释一些 “why”。
C 程序为什么要编译才能执行？一个 C 程序在变成可执行文件的过程中，为什么要经过预处]]></description><category></category></item><item><title><![CDATA[Error：NoSuchMethodError: org.springframework.jdbc.datasource.DataSourceUtils.isConnectionTransaction]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/41804545</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/41804545</guid><author>joy_91</author><pubDate>Mon, 08 Dec 2014 15:49:54 +0800</pubDate><description><![CDATA[问题描述：
mybatis+spring 执行报错NoSuchMethodError: org.springframework.jdbc.datasource.DataSourceUtils.isConnectionTransactional


分析：
connection是否为事务性。
DataSourceUtils.isConnectionTransactional

Det]]></description><category></category></item><item><title><![CDATA[error：maven中cannot load JDBC connector]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/41802921</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/41802921</guid><author>joy_91</author><pubDate>Mon, 08 Dec 2014 14:09:44 +0800</pubDate><description><![CDATA[问题：

maven项目，spring中添加数据源，调用出错：

org.springframework.jdbc.CannotGetJdbcConnectionException  

Cannot load JDBC driver class 'oracle.jdbc.driver.OracleDriver"


分析：

虽然在maven中添加ojdbc depende]]></description><category></category></item><item><title><![CDATA[CEP和EDSOA的那些事]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/41082581</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/41082581</guid><author>joy_91</author><pubDate>Thu, 13 Nov 2014 22:33:40 +0800</pubDate><description><![CDATA[最近由于需要在接触一堆概念，从SOA、ESB到EDA、CEP、事件流、规则引擎等，有些混乱也有些似懂非懂。自我梳理之。
 
SOA：官方解释]]></description><category></category></item><item><title><![CDATA[jdk 与 jre]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/40303399</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/40303399</guid><author>joy_91</author><pubDate>Mon, 20 Oct 2014 17:06:28 +0800</pubDate><description><![CDATA[1.JVM -- java virtual machineJVM就是我们常说的java虚拟机，它是整个java实现跨平台的最核心的部分，所有的java程序会首先被编译为.class的类文件，这种类文件可以在虚拟机上执行，也就是说class并不直接与机器的操作系统相对应，而是经过虚拟机间接与操作系统交互，由虚拟机将程序解释给本地系统执行。]]></description><category></category></item><item><title><![CDATA[error: null pointer exception in JaxWsDynamicClientFactory]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/40302423</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/40302423</guid><author>joy_91</author><pubDate>Mon, 20 Oct 2014 16:27:11 +0800</pubDate><description><![CDATA[http://stackoverflow.com/questions/15564388/dynamic-client-using-jaxwsdynamicclientfactory-apache-cxf]]></description><category></category></item><item><title><![CDATA[HTML/css碎片知识]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/39475407</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/39475407</guid><author>joy_91</author><pubDate>Mon, 22 Sep 2014 13:53:26 +0800</pubDate><description><![CDATA[1.http-equiv 属性 -- HTTP协议的响应头报文

此属性出现在meta标签中此属性用于代替name，HTTP服务器通过此属性收集HTTP协议的响应头报文此属性的HTTP协议的响应头报文的值应使用content属性描述]]></description><category></category></item><item><title><![CDATA[FreeMarker template error! struts不识别--model类构造函数问题]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/39323877</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/39323877</guid><author>joy_91</author><pubDate>Tue, 16 Sep 2014 21:54:18 +0800</pubDate><description><![CDATA[当你在使用Struts2框架的时候，在某些情况下会遇到类似如下提示的错误：


   1. FreeMarker template error!  
   2. Expression error is undefined on line 35, column 4 in template/simple/actionerror.ftl.  
   3. The problematic ins]]></description><category></category></item><item><title><![CDATA[struts2.3 JAR包问题]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/39298171</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/39298171</guid><author>joy_91</author><pubDate>Mon, 15 Sep 2014 20:53:17 +0800</pubDate><description><![CDATA[问题：
将struts2的lib文件夹下所有jar包导入webcontent的lib下]]></description><category></category></item><item><title><![CDATA[getServletContext().getRealPath("/"):]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/39291453</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/39291453</guid><author>joy_91</author><pubDate>Mon, 15 Sep 2014 13:40:03 +0800</pubDate><description><![CDATA[http://stackoverflow.com/questions/11398513/eclipse-problems-with-getrealpath

http://stackoverflow.com/questions/1012378/eclipse-server-locations-section-disabled-and-need-to-change-to-use-tomcat-i]]></description><category></category></item><item><title><![CDATA[String与new String]]></title><link>https://blog.youkuaiyun.com/joy_91/article/details/39156097</link><guid>https://blog.youkuaiyun.com/joy_91/article/details/39156097</guid><author>joy_91</author><pubDate>Tue, 09 Sep 2014 14:50:10 +0800</pubDate><description><![CDATA[引用在栈，对象在堆



关于定义String的堆栈问题
String s =new String()分析堆与栈,是先定义S,还是先new string()
1. String str1 = "abc"; 
    System.out.println(str1 == "abc");
步骤： 
1) 栈中开辟一块空间存放引用str1；
2) String池中开辟一块空间，存放S]]></description><category></category></item></channel></rss>