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MAC�pȝ��每次启动Powerpoint都会自动打开两个PPT文�g

草原上的骆驼 — Mon, 26 Nov 2018 20:46:00 GMT

MAC�pȝ��每次启动Powerpoint都会自动打开两个PPT文�g�Q�很烦�h�Q�一直没有找到解��x��案。终于在官网打到�Q�解��x��式如下：

�q�个问题的话��您尝�?span style="box-sizing: inherit; border: 0px; margin: 0px; padding: 0px; vertical-align: top; -webkit-font-smoothing: antialiased; text-size-adjust: none; color: #333333;">打开finder�Q�访达）�Q�按 shift+command+G�Q�输�?/span>

~/Library/Containers/com.microsoft.Powerpoint/Data/Library/Preferences/AutoRecovery/

或者打开�l�端�Q�输�?/span>

open ~/Library/Containers/com.microsoft.Powerpoint/Data/Library/Preferences/AutoRecovery/

�?/span>后删除里面的文�g卛_��Q?/span>

希望以上信息能够帮助到您�?/span>

草原上的骆驼 2018-11-27 04:46 发表评论

草原上的骆驼 — Wed, 14 Nov 2018 14:52:00 GMT

最�q�在MAC下��用WINDOWS下映��Win键到Ctrl键，�q�样和MAC上的键统一�?br />

使用开源的工具�Q?br />

https://github.com/randyrants/sharpkeys/releases

具体的说明如下：

https://superuser.com/questions/1264164/how-to-map-windows-key-to-ctrl-key-on-windows-10

草原上的骆驼 2018-11-14 22:52 发表评论

直播产品技术架构（�p�d��文章�Q?

草原上的骆驼 — Wed, 19 Sep 2018 08:37:00 GMT

最�q�一直在做的事情�Q�先把标题草拟出来，产品�|�址: http://www.tuwenzhibo.com http://www.zhaopianzhibo.com
�|�站的架构图�q�期会放出，是一�p�d��的文章，请大家关注�?br />

草原上的骆驼 2018-09-19 16:37 发表评论

CentOS7安装最新的PHP7.2 PHP_FPM更新

草原上的骆驼 — Tue, 31 Jul 2018 18:32:00 GMT

1.Nginx

sudo yum install epel-release
sudo yum install nginx
sudo systemctl start nginx
sudo systemtl enable nginx

2.MariaDB

sudo yum install mariadb-server mariadb
sudo systemctl start mariadb
sudo systemctl enable mariadb
sudo mysql_secure_installation

3.PHP-FPM

sudo rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
sudo rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
yum install yum install php72w-cli.x86_64 php72w-common.x86_64 php72w-gd.x86_64 php72w-ldap.x86_64 php72w-mbstring.x86_64 php72w-mcrypt.x86_64 php72w-mysql.x86_64 php72w-pdo.x86_64

yum install php72w-fpm

systemctl enable php-fpm

4.TEST
Test your php page

草原上的骆驼 2018-08-01 02:32 发表评论

CentOS安装Composer

草原上的骆驼 — Wed, 22 Nov 2017 22:07:00 GMT

在��时目录下

cd /tmp

下蝲文�g

curl -sS https://getcomposer.org/installer | php

�U�d��到可执行目录

mv composer.phar /usr/local/bin/composer

草原上的骆驼 2017-11-23 06:07 发表评论

来自�w�䆾不明开发者�? 或者文件已损坏�Q�打不开.XX is damaged and can't be opened. You should move it to the Trash.

草原上的骆驼 — Sun, 06 Aug 2017 14:43:00 GMT

最�q�在MAC上安装��Y�Ӟ��发现�q�个问题�?br />解决很简单�?br />�q�入�pȝ��与偏好设�|?》安全与隐私-》在安全性与隐私界面的最下面有三个选项�Q?br />1.AppStore
2.AppStore和被认可的开发�?br />3.��M��来源

注意�Q�有的系�l�里没有��M��来源选项�Q�也��是说只有前两个选项�?br />
�q�样的情况下�Q�你需要在你的命��o行里做一下操作�?br />
�q�入�l�端命��o行窗口，输入sudo spctl --master-disable
会提�C�Z��输入密码�Q�输入完用户密码后即可完成操作�?br />然后再次�q�入�pȝ��与偏好设�|?》安全性与隐私-》选择�W�三个�Q何来源即可�?br />

草原上的骆驼 2017-08-06 22:43 发表评论

CentOS7 修改Hostname

草原上的骆驼 — Thu, 10 Nov 2016 01:52:00 GMT

最�q�想修改Centos7的hostname, 可是如果直接修改hostname文�g不生效，今天查了查原来centos有几�U�hostname.

hostnamectl  控制整个�pȝ��的hostname�Q�推荐��?br /> nmtul             使用text ui 控制
nmtcli            可以用但是不推荐使用

[root@willweb ~]# hostnamectl status
   Static hostname: willweb
         Icon name: computer-vm
           Chassis: vm
        Machine ID: f9d400c5e1e8c3a8209e990d887d4ac1
           Boot ID: dd7be45d652849dcb82493c286c69dbf
    Virtualization: kvm
  Operating System: CentOS Linux 7 (Core)
       CPE OS Name: cpe:/o:centos:centos:7
            Kernel: Linux 3.10.0-327.el7.x86_64
      Architecture: x86-64
[root@willweb ~]# hostname
willweb
[root@willweb ~]# hostnamectl
   Static hostname: willweb
         Icon name: computer-vm
           Chassis: vm
        Machine ID: f9d400c5e1e8c3a8209e990d887d4ac1
           Boot ID: dd7be45d652849dcb82493c286c69dbf
    Virtualization: kvm
  Operating System: CentOS Linux 7 (Core)
       CPE OS Name: cpe:/o:centos:centos:7
            Kernel: Linux 3.10.0-327.el7.x86_64
      Architecture: x86-64
[root@willweb ~]# hostnamectl status
   Static hostname: willweb
         Icon name: computer-vm
           Chassis: vm
        Machine ID: f9d400c5e1e8c3a8209e990d887d4ac1
           Boot ID: dd7be45d652849dcb82493c286c69dbf
    Virtualization: kvm
  Operating System: CentOS Linux 7 (Core)
       CPE OS Name: cpe:/o:centos:centos:7
            Kernel: Linux 3.10.0-327.el7.x86_64
      Architecture: x86-64

使用命��o如下

# hostnamectl set-hostname Your-New-Host-Name-Here
# hostnamectl set-hostname "Your New Host Name Here" --pretty
# hostnamectl set-hostname Your-New-Host-Name-Here --static
# hostnamectl set-hostname Your-New-Host-Name-Here --transient

�q�程讄��hostname

ssh root@server-ip-here hostnamectl set-hostname server1
hostnamectl set-hostname server1 -H root@192.168.1.42

草原上的骆驼 2016-11-10 09:52 发表评论

草原上的骆驼 — Fri, 21 Oct 2016 17:50:00 GMT

参考：https://www.howtoforge.com/nfs-server-and-client-on-centos-7#-nfs-client-end
1.Server Side配置

yum install nfs-utils
安装完成后，�q�行配置
mkdir /data/share
chmod -R 777 /data/share
讄��自启�?br />systemctl enable nfs-server ipcbind
systemctl start nfs-server ipcbind

配置
vim /etc/exports
��d��以下内容

/data/share 192.168.0.101(rw,sync,no_root_squash,no_all_squash)

其中192.168.0.101��l�哪个客��L��IP开�?br />

systemctl restart nfs-server

配置防火墙（如何没有��d��防火墙就��了�Q?br />firewall-cmd --permanent --zone=public --add-service=nfs
firewall-cmd --reload

2.Client Side 配置

安装配置nfs, 在客��h��上的安装
yum install ufs-utils

systemctl enable rpcbind
systemctl start rpcbind

mkdir /data/share
chmod  -R 777 /data/share

mount -t nfs  192.168.0.100:/data/share /data/share

讄��/etc/fstab, 自启动nfs
192.168.0.100:/data/share  /data/share nfs defaults 0 0

systemctl restart rpcbind

3.��试

�?92.168.1.100 nfs server�?br />cd /data/share
touch a.txt
cat aaaa> b.txt
�q�入192.168.1.101 nfs client�?br />cd /data/share
查看文�g列表 ls
因此所有的功能配置完成了，希望�Ҏ��友们有帮助�?/div>

草原上的骆驼 2016-10-22 01:50 发表评论

草原上的骆驼 — Mon, 29 Aug 2016 05:55:00 GMT

Windows环境下在Tomcat/bin目录下创建setenv.bat, Linux环境下在Tomcat/bin目录下设�|�setenv.sh
注意只是后缀名称不同�Q��ؓ什么不同，注意查看catalina.bat或者catalina.sh�?br />
例如setenv.sh里添加下面的内容

export JAVA_OPTS="-Dfile.encoding=UTF-8 -Xms2048m -Xmx2048m -XX:PermSize=256m -XX:MaxPermSize=256m"

Windows下的setenv.bat里添加下面的内容�Q?br />

set "JAVA_OPTS=%JAVA_OPTS% -Xms128m -Xmx1024m -XX:MaxPermSize=256m -server"

然后重启Tomcat�Q�查看堆内存的��用情况：

worker 15061 1 0 Aug25 ? 00:04:21 /usr/bin/java -Djava.util.logging.config.file=/home/work/apache-tomcat-7.0.53/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Dfile.encoding=UTF-8 -Xms2048m -Xmx2048m -XX:PermSize=256m -XX:MaxPermSize=256m -Djava.awt.headless=true -Djava.endorsed.dirs=/home/work/apache-tomcat-7.0.53/endorsed -classpath /home/work/apache-tomcat-7.0.53/bin/bootstrap.jar:/home/work/apache-tomcat-7.0.53/bin/tomcat-juli.jar -Dcatalina.base=/home/work/apache-tomcat-7.0.53 -Dcatalina.home=/home/work/apache-tomcat-7.0.53 -Djava.io.tmpdir=/home/work/apache-tomcat-7.0.53/temp org.apache.catalina.startup.Bootstrap start

说明讄��成功�Q�很��单�?br />
后箋我会写几��Tomcat内存学习的文章，�Ƣ迎大家��x��?br />

草原上的骆驼 2016-08-29 13:55 发表评论

草原上的骆驼 — Wed, 03 Aug 2016 02:59:00 GMT

最�q�有几个服务的Tomcat��L��无缘无故的宕机，��C��不得不解决的地步�?br /> 在Stackoverflow上找到比较有用的一��文章，解决�Ҏ��如下�Q?br />

http://stackoverflow.com/questions/3320400/to-prevent-a-memory-leak-the-jdbc-driver-has-been-forcibly-unregistered
有以下几个解决途径�Q?br />

Ignore those warnings. Tomcat is doing its job right. The actual bug is in someone else's code (the JDBC driver in question), not in yours. Be happy that Tomcat did its job properly and wait until the JDBC driver vendor get it fixed so that you can upgrade the driver. On the other hand, you aren't supposed to drop a JDBC driver in webapp's /WEB-INF/lib, but only in server's /lib. If you still keep it in webapp's /WEB-INF/lib, then you should manually register and deregister it using a ServletContextListener.
忽略警告。把WEB-INF/lib下的mysql驱动文�g拯��到Tomcat/lib下。如果仍然要攑֜�WEB-INF/lib下，需要��用监听器手动的注册和注销�?br /> 下面的文章介�l�如何写监听器，http://javabeat.net/servletcontextlistener-example/�Q?当然如果是Servlet3.0�Q?使用注解方式讄��监听也是可以的�?br /> 下面的代码是如何注销�?br />

Step 1: Register a Listener
web.xml
<listener>
    <listener-class>com.mysite.MySpecialListenerlistener-class>
listener>
Step 2: Implement the Listener

com.mysite.MySpecialListener.java

public class MySpecialListener extends ApplicationContextListener {

    @Override
    public void contextInitialized(ServletContextEvent sce) {
        // On Application Startup, please…

        // Usually I'll make a singleton in here, set up my pool, etc.
    }

    @Override
    public void contextDestroyed(ServletContextEvent sce) {
  // This manually deregisters JDBC driver, which prevents Tomcat 7 from complaining about memory leaks wrto this class
        Enumeration<Driver> drivers = DriverManager.getDrivers();
        while (drivers.hasMoreElements()) {
            Driver driver = drivers.nextElement();
            try {
                DriverManager.deregisterDriver(driver);
                LOG.log(Level.INFO, String.format("deregistering jdbc driver: %s", driver));
            } catch (SQLException e) {
                LOG.log(Level.SEVERE, String.format("Error deregistering driver %s", driver), e);
            }

        }
}

}
Downgrade to Tomcat 6.0.23 or older so that you will not be bothered with those warnings. But it will silently keep leaking memory. Not sure if that's good to know after all. Those kind of memory leaks are one of the major causes behind OutOfMemoryError issues during Tomcat hotdeployments.
把Tomcat降��C��版本�Q?.0.23以下�Q�，虽然不会报错�Q�但是还是存在内存益出的问题�Q�这�q�不是一个好的解��x��案�?br />
Move the JDBC driver to Tomcat's /lib folder and have a connection pooled datasource to manage the driver. Note that Tomcat's builtin DBCP does not deregister drivers properly on close. See also bug DBCP-322 which is closed as WONTFIX. You would rather like to replace DBCP by another connection pool which is doing its job better then DBCP. For exampleHikariCP, BoneCP, or perhaps Tomcat JDBC Pool.
把驱动文件移到Tomcat/lib文�g夹下�Q�不用��用DBCP�Q��用以下的�q�接池库,HikariCP, BoneCP,或者Tomcat JDBC Pool.
MAVEN��目

If you are getting this message from a Maven built war change the scope of the JDBC driver to provided, and put a copy of it in the lib directory. Like this:<dependency>�Q?br /> 对于MAVEN��目�Q�由于Tomcat中存在mysql驱动文�g�Q?中介�l�）�Q�这样在部��v时就不会把mysql带到打包文�g里，注意�?lt;scope>provided�?br />

  <groupId>mysqlgroupId>
  <artifactId>mysql-connector-javaartifactId>
  <version>5.1.18version>

  <scope>providedscope>
dependency>

好了�Q�如果您遇到同样的问题，可以和我沟通，联系方式见头部�?img src ="http://www.tkk7.com/nkjava/aggbug/431436.html" width = "1" height = "1" />

草原上的骆驼 2016-08-03 10:59 发表评论

草原上的骆驼 — Sat, 02 Jul 2016 01:01:00 GMT

1、模�p�查询表�?br />

root@serv: ~$ mysqldump dbname $(mysql -D YOURDBNAME -Bse "SHOW TABLES LIKE 'table_pattern_%'") > /tmp/database-dump.sql

2、指定表列表导出
导出表名�U�ͼ�
mysql -N information_schema -e "select table_name from tables where table_schema = 'dbname' and table_name like 'sys_%'" > tables.txt

导出表：
mysqldump dbname `cat tables.txt` >> dump_file.sql

扚w��删除表：
mysql -NB  information_schema -e "select table_name from tables where table_name like 'sys_%'" | xargs -I"{}" mysql dbname -e "DROP TABLE {}"

草原上的骆驼 2016-07-02 09:01 发表评论

MAC下安装Redis

草原上的骆驼 — Wed, 29 Jun 2016 20:16:00 GMT

�Ҏ��一�Q��用Brew

brew install redis

�Ҏ��二：使用源码安装
下蝲地址�Q�http://redis.io/download

cd redis-2.4.13
make
sudo mv src/redis-server /usr/bin
sudo mv src/redis-cli /usr/bin

mkdir ~/.redis

touch ~/.redis/redis.conf

使用方式�Q?br />

redis-server

草原上的骆驼 2016-06-30 04:16 发表评论

Linux命��o(Linux Commands)不断完善�?...

草原上的骆驼 — Sat, 05 Mar 2016 22:19:00 GMT

1.Grep
grep -Hn "search content" filename or * 昄��文�g名和行号

草原上的骆驼 2016-03-06 06:19 发表评论

草原上的骆驼 — Mon, 15 Feb 2016 09:13:00 GMT

MAVEN命��o

http://www.mvnrepository.com  #中央仓库

mvn eclipse:eclipse  #生成eclipse配置文�g
mvn clean package #打包��目
mvn clean install #安装成本地库
mvn clean install -DoutputDirectory=lib -Dsilent=true -Pmodules
mvn clean install -Pmodules #安装指定的模块到本地仓库
mvn jetty:run #�q�行jetty
mvn tomcat7:run #�q�行tomcat

mvn compile #�~�译
mvn test #�q�行��试

下蝲源码和文�?br /> mvn -DdownloadJavadocs=true eclipse:eclipse
mvn -DdownloadSources=true eclipse:eclipse
mvn archetype:generate -DgroupId=cn.ourwill.maven -DartifactId=hello-world -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false   #mvn 创徏��目

mvn install -Dmaven.test.skip=true#不执行测�?br />

环境分离


            mine

                true



                    src/main/filters/filter-mine.properties




            test

                false



                    src/main/filters/filter-test.properties




            release

                false



                    src/main/filters/filter-release.properties





mvn install -Denvironment.type=prod  #使用不同的环境，生��环境�Q�开发环境，��试环境

mvn install:install-file -Dfile=Sample.jar -DgroupId=uniquesample -DartifactId=sample_jar -Dversion=2.1.3b2 -Dpackaging=jar -DgeneratePom=true #安装到本�?br />
mvn dependency:tree #依赖�?br /> mvn dependencies: copy-dependency #复制依赖的jar�?br />

生成java-doc
mvn javadoc:javadoc
mvn javadoc:jar
mvn javadoc:aggregate
mvn javadoc:aggregate-jar
mvn javadoc:test-javadoc
mvn javadoc:test-jar
mvn javadoc:test-aggregate
mvn javadoc:test-aggregate-jar

生成jar
mvn jar:jar
mvn jar:test-jar

说明文档
1. mvn help:describe -Dplugin=eclipse -Dfull > eclipse-help.txt
2. mvn help:describe -Dplugin=help -Dfull > help-help.txt
3. mvn help:describe -Dplugin=dependency -Dfull > dependency-help.txt
4. mvn help:describe -Dcmd=compiler:compile –Ddetail
5. mvn help:describe -Dplugin=org.apache.maven.plugins:maven-compiler-plugin

GRADLE命��o

草原上的骆驼 2016-02-15 17:13 发表评论

草原上的骆驼 — Thu, 21 Jan 2016 23:42:00 GMT

1.安装

sudo yum install vsftpd

2.配置

sudo vi /etc/vsftpd/vsftpd.conf

anonymous_enable=NO #匿名用户不可��d��
local_enable=YES #
chroot_local_user=YES #只能讉K��当前用户的目�?br />
systemctl restart vsftpd
systemctl enable vsftpd

3.用户配置

usermod --home /data/ftp test

http://unix.stackexchange.com/questions/94603/limit-ftp-access-only-to-the-var-www-with-vsftpd
http://www.howtogeek.com/howto/ubuntu/add-a-user-on-ubuntu-server/
http://www.howtogeek.com/50787/add-a-user-to-a-group-or-second-group-on-linux/
https://www.rackspace.com/knowledge_center/article/rackspace-cloud-essentials-centos-configuring-a-user-in-vsftpd

草原上的骆驼 2016-01-22 07:42 发表评论