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_SQL乘法口诀
declare @x int ,@y int ,@z varchar(1000)set @x=1set @y=1set @z=''while @x<=9 begin set @y=1 while @y<@x begin set @z=@z+Cast(@y As varchar(10))+'*'+Cast(@x As varchar(10))+'='+Cast(@y*@x as varchar(10)) if @x*@y>=10 set @z=@z+' ' else set @z=@z+' ' ...
cordova build 卡在：Resolving dependencies ':classpath'
Download https://repo1.maven.org
恭喜,被墙了，
修改：build.gradle
repositories {
maven{ url 'http://maven.oschina.net/content/groups/public/'}
}
即可
Cordova报错：
E:\study\cordova\eppdemo>cordova platform add ios
WARNING: Applications for platform ios can not be built on this OS - win32.
npm http GET https://registry.npmjs.org/cordova-ios
npm http GET https://registry.npmjs.org/cordova-ios
npm http GET https://registry.npmjs.org/cordova ...
utf-8非法字符65279
- 博客分类：
- java
最近在做敏感词过滤的时候，用记事本保存敏感词，但是在读取记事本的时候，发现第一行的词总是识别不了
经过debug发现在记事本保存utf8的时候自动加个了"空白"字符，经排查字符的ascii = 65279
google后发现原来记事本在保存utf8时自动在开头加上BOM，使用notepad ++的“以UTF-8无BOM格式编码”保存即可
[root@iZ286daemg4Z mysql]# rpm -ivh MySQL-server-5.6.23-1.el6.x86_64.rpm
Preparing... ################################# [100%]
file /usr/share/mysql/charsets/README from install of MySQL-server-5.6.23-1.el6.x86_64 conflicts with file from package mariadb-libs-1:5.5.40-1 ...
CXF集成Spring报下面错误：
Error creating bean with name 'cxf': Singleton bean creation not allowed while the singletons of this factory are in destruction (Do not request a bean from a BeanFactory in a destroy method implementation!)
原因是CXF 不支持Timestamp
解决方案参照
http://www.blogjava.net/absolutedo/a ...
最近在使用datatable，Struts2返回的JSON Datatable总是不能解析，通过Firebug看到返回Json的都带有反斜杠如下：
{\"Result\":\"OK\",\"Records\":[{\"PersonId\":1,\"Name\":\"Benjamin Button\",\"Age\":17,\"RecordDate\":\"\/Date(1320259705710)\/\"} ...
Java 使用POI 读取 excel文件，错误：
Unable to read entire header; 0 bytes read; expected 512 bytes
原因可能：
FileInputStream 使用了两次，第二次就会报这个错