By encapsulating all the logic for an object, whether it’s a Dog or a User or an IceCreamShop, you are able to keep all of the logic and responsibilities of your object within its own scope. This lets you avoid having to worry about other objects usi…

Thanks to the ASP.NET Core middleware pipeline, it is relatively simple to add additional HTTP headers to your application by using custom middleware. One common use case for this is to add caching headers. Allowing clients and CDNs to cache your con…

Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define ... 这个错误是因为有两个相同的jar包,删除其中一个就可以正常运行了.…

看到了http://stackoverflow.com/questions/5547162/eclipse-error-indirectly-referenced-from-required-class-files , 也没搞明白. 后面被证明, 实际上还是Unresolved compilation problems [ERROR] [09-30 11:04:19] org.springframework.web.context.ContextLoader - Context initiali…

在本地开发环境没问题,但是发布到服务器出现:未能写入输出文件"c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.Net Files\root\106f9ae8\cc0e1169\App_global.asax.haz99mum.dll"--"拒绝访问. "错误 解决方法: 1,通常的解决方法:原因是由于系统目录下的Temp目录无相应的权限所致,具体操作如下:C:\Windows\temp--&…

作用:查找指定目录(一个或多个)及子目录下的所有重复文件,分组列出,并可手动选择或自动随机删除多余重复文件,每组重复文件仅保留一份.(支持文件名有空格,例如:"file  name" 等) 实现:find遍历指定目录查找所有文件,并对找到的所有文件进行MD5校验,通过比对MD5值分类处理重复文件. 不足:  find 遍历文件耗时: MD5校验大文件耗时: 对所有文件校验比对耗时(可考虑通过比对文件大小进行第一轮的重复性筛选,此方式针对存放大量大文件的目录效果明显,本脚本未采用): 演…

今天调试 Android 应用遇到这么个问题: Duplicate files copied in APK META-INF/DEPENDENCIES File 1: httpmime-4.3.2.jar File 2: httpmime-4.3.2.jar 貌似说两个包里面的文件重复了还是怎么的,谷歌了一番之后据说应该是 android studio 自身的bug 解决办法: 打开项目下面的 build.gradle 文件,在 android 代码块中添加下面代码 android { pack…

Oracle客户端工具出现"Cannot access NLS data files or invalid environment specified"错误的解决办法 方法一:参考,http://blog.csdn.net/longyuhome/article/details/7977433 方法二:此外也可以在环境变量(我的电脑-->右键属性-->高级系统设置-->环境变量-->系统变量)中添加NLS_LANG=SIMPLIFIED CHINESE_CHINA…

#!/usr/bin/python # 8th November, 2009 # update manager failed, giving me the error: # 'files list file for package 'xxx' is missing final newline' for every package. # some Googling revealed that this problem was due to corrupt files(s) in /var/lib/…

出现这个问题Some externally hosted files were ignored (use --allow-external PIL to allow)的主要原因是PIL的一些依赖库还没有安装 需要先安装PIL的依赖库 安装步骤 (1)首先通过homebrew安装libtiff,libjpeg webp little-cms2的库 brew install libtiff libjpeg webp little-cms2 (2)然后通过pip安装PIL pip install Pi…