CentOS64+Qt+Mysql+ftp+無(wú)密鑰傳輸?shù)呐渲?詳細(xì)過(guò)程>
這兩天單位要部一個(gè)環(huán)境.CentOS64+Qt+Mysql+ftp+無(wú)密鑰傳輸?shù)?
有段日了沒(méi)裝系統(tǒng)了..呵呵..
命令忘的都差不多了..記錄一下.
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# 1. CentOS 配置yum源
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# 掛載兩個(gè)ISO
將第一個(gè)盤的ISO1文件拷貝到ISO2中,進(jìn)行掛載.
[base-centos]
name=CentOS
baseurl=file:///mnt/iso
gpgcheck=0
enabled=1
# 安裝gcc,java
yum intall -y gcc*
yum intall -y java*
# 關(guān)閉防火墻
關(guān)閉：
chkconfig iptables off
selinuxenabled 0
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# 2. 安裝MYSQL-5.1.66
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# 配置好yum源后,yum install -y mysql*
# 啟動(dòng)mysql
service mysqld start
mysql -h192.168.2.18 -uroot -p111
# 查看監(jiān)聽(tīng)端口
netstat -tnlp |grep :3306
# 查看庫(kù)
show databases;
# mysql的遠(yuǎn)程連接
# 在[mysqld]的段中加上一句：skip-grant-tables
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
skip-name-resolve
skip-grant-tables
目的是為了：
跳過(guò)MySQL的訪問(wèn)控制，任何人都可以在控制臺(tái)以管理員的身份進(jìn)入MySQL數(shù)據(jù)庫(kù)。
需要注意的是在修改完密碼以后要把MySQL服務(wù)器停掉重新啟動(dòng)才會(huì)生效
重啟mysql服務(wù)!
如果你想允許用戶myuser從ip為192.168.1.3的主機(jī)連接到mysql服務(wù)器，并使用mypassword作為密碼
GRANT ALL PRIVILEGES ON *.* TO 'myuser'@'192.168.1.3' IDENTIFIED BY 'mypassword' WITH GRANT OPTION;
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# 3. 編譯安裝Qt-4.5.2
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## Qt安裝方法
解壓安裝包,并移動(dòng)到 /user/locale/下面.
./configure -debug-and-release -fast -qt-sql-mysql -no-qt3support -no-webkit -no-opengl -no-openssl
# 配置結(jié)果
<注意:Qt默認(rèn)只支持PNG圖片,
如果有JPEG或其它格式,
需要去Qt的安裝目錄
plugins\imageformats
下拷貝圖片插件>
Debug ............... no
Qt 3 compatibility .. no
QtDBus module ....... no
QtScriptTools module yes
QtXmlPatterns module yes
Phonon module ....... no
SVG module .......... yes
WebKit module ....... no
STL support ......... yes
PCH support ......... yes
MMX/3DNOW/SSE/SSE2.. yes/yes/yes/yes
Graphics System ..... default
IPv6 support ........ yes
IPv6 ifname support . yes
getaddrinfo support . yes
getifaddrs support .. yes
Accessibility ....... yes
NIS support ......... yes
CUPS support ........ no
Iconv support ....... yes
Glib support ........ no
GStreamer support ... no
Large File support .. yes
GIF support ......... plugin
TIFF support ........ plugin (qt)
JPEG support ........ plugin (qt)
PNG support ......... yes (qt)
MNG support ......... plugin (qt)
zlib support ........ system
Session management .. yes
OpenGL support ...... no
NAS sound support ... no
XShape support ...... yes
Xinerama support .... runtime
Xcursor support ..... runtime
Xfixes support ...... runtime
Xrandr support ...... runtime
Xrender support ..... yes
Xi support .......... runtime
MIT-SHM support ..... yes
FontConfig support .. yes
XKB Support ......... yes
immodule support .... yes
GTK theme support ... no
MySQL support ....... qt
SQLite support ...... plugin (qt)
OpenSSL support ..... no
## 編譯安裝
gmake && gmake install
## 修改環(huán)境變量
可以將環(huán)境變量添加到 .bashrc 或 .bash_profile 或 /etc/bashrc 或 /etc/profile
它們的區(qū)別是:
1. /etc/profile：對(duì)所有用戶生效,當(dāng)用戶第一次登錄時(shí),該文件被執(zhí)行.
2. /etc/bashrc：對(duì)所有用戶生效,為每一個(gè)運(yùn)行bash shell的用戶執(zhí)行此文件
3. ~/.bash_profile：僅會(huì)對(duì)當(dāng)前用戶有效,當(dāng)用戶登錄時(shí),該文件僅僅執(zhí)行一次
4. ~/.bashrc：僅會(huì)對(duì)當(dāng)前用戶有效,當(dāng)?shù)卿洉r(shí)以及每次打開(kāi)新的shell時(shí),該該文件被讀取
QTDIR=/usr/local/qt-4.5.2
PATH=$QTDIR/bin:$PATH
LD_LIBRARY_PATH=$QTDIR/lib:$LD_LIBRARY_PATH
QMAKESPEC=$QTDIR/mkspecs/linux-g++-64
export QTDIR
export PATH
export LD_LIBRARY_PATH
export QMAKESPEC
## 查看Qt支持的圖片類型
可以運(yùn)行下面的函數(shù)查看:QImageReader::supportedImageFormats
QList
Returns the list of image formats supported by QImageReader.
By default, Qt can read the following formats:
Format Description
BMP Windows Bitmap
GIF Graphic Interchange Format (optional)
JPG Joint Photographic Experts Group
JPEG Joint Photographic Experts Group
MNG Multiple-image Network Graphics
PNG Portable Network Graphics
PBM Portable Bitmap
PGM Portable Graymap
PPM Portable Pixmap
TIFF Tagged Image File Format
XBM X11 Bitmap
XPM X11 Pixmap
SVG Scalable Vector Graphics
TGA Targa Image Format
Reading and writing SVG files is supported through Qt's SVG Module.
TGA support only extends to reading non-RLE compressed files. In particular calls to capabilities for the tga plugin returns only QImageIOPlugin::CanRead, not QImageIOPlugin::CanWrite.
To configure Qt with GIF support, pass -qt-gif to the configure script or check the appropriate option in the graphical installer.
Note that the QApplication instance must be created before this function is called.
See also setFormat(), QImageWriter::supportedImageFormats(), and QImageIOPlugin.
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# 4. 使用Qt連接Mysql
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#include
#include
#include
#include
using namespace std;
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
QSqlDatabase db = QSqlDatabase::addDatabase("QMYSQL");
db.setHostName("localhost");
db.setDatabaseName("mydb");
db.setUserName("username");
db.setPassword("password");
db.open();
QSqlQuery query;
query.exec("create table hello(id bigint not null auto_increment,name varchar(255),age bigint,primary key (id))");
query.exec("insert into hello(name, age) values('xiaoxi', 18)");
query.exec("insert into hello(name, age) values('xiaonan', 19)");
query.exec("insert into hello(name, age) values('xiaobei', 20)");
query.exec("insert into hello(name, age) values('xiaodong', 21)");
QSqlQueryModel *model = new QSqlQueryModel;
model->setQuery("select * from hello");
model->setHeaderData(0, Qt::Horizontal, "id");
model->setHeaderData(1, Qt::Horizontal, "name");
model->setHeaderData(2, Qt::Horizontal, "age");
QTableView *view = new QTableView;
view->setWindowTitle("QSqlQueryModel");
view->setModel(model);
view->show();
db.close();
return app.exec();
}
編譯：
xhy@xhy-desktop:~$ qmake -project
xhy@xhy-desktop:~$ qmake
一定別忘了在工程的.pro文件里加上下面一行:
QT += sql
xhy@xhy-desktop:~$make
xhy@xhy-desktop:~$./mysql
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# 5. CentOS配置sftp
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sftp是ssh內(nèi)含的協(xié)議，只要sshd服務(wù)器啟動(dòng)了，它就可用.
sftp root@192.168.2.18
>ls
>get ...
>put ...
如果sshd服務(wù)沒(méi)有默認(rèn)啟動(dòng):
chkconfig sshd on
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# 6. CentOS配置無(wú)密鑰傳輸
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# 舉例說(shuō)明:
[root@centos6-64 .ssh]# pwd
/root/.ssh
[root@centos6-64 .ssh]# ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
d6:2a:df:0b:46:3d:22:da:5b:24:b2:da:78:01:f3:c4 root@centos6-64
The key's randomart image is:
+--[ RSA 2048]----+
| |
| |
| . |
| o E o |
| =. o S + |
| o= * o . |
| o.o = |
| +. * o |
| o.. . . o. |
+-----------------+
[root@centos6-64 .ssh]# ls -lrt
total 16
-rw-r--r-- 1 root root 394 Nov 18 16:18 known_hosts
-rw-r--r-- 1 root root 394 Nov 18 22:32 authorized_keys
-rw-r--r-- 1 root root 397 Nov 18 22:33 id_rsa.pub
-rw------- 1 root root 1675 Nov 18 22:33 id_rsa
[root@centos6-64 .ssh]# scp id_rsa.pub 192.168.2.16:~/.ssh/authorized_keys
root@192.168.2.16's password:
id_rsa.pub 100% 397 0.4KB/s 00:00
[root@centos6-64 .ssh]# ssh 192.168.2.16
Last login: Mon Nov 18 22:16:16 2013 from 192.168.2.221
[root@red6-64 ~]#
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