JSP Context 備忘 -- 抓取server Path 路徑

抓取server Path 路徑，我比較常用的二個方法


方法一(印出的時侯code比較短)
<%
String addr = request.getRemoteAddr();
int port = request.getServerPort();
String contextpath = request.getContextPath();
String path = "http://"+addr+":"+String.valueOf(port)+contextpath;
pageContext.setAttribute("path",path);
%>
${path} //印出

//方法二(一行搞到)
http://${pageContext.request.remoteAddr}:${pageContext.request.serverPort}

mysql install --Mac OS X (TAR packages)

下載 Mac OS X (TAR packages)

1.解壓縮放到自已方便記住的地方

2.執行以下的command

shell> scripts/mysql_install_db --user=root
shell> chown -R root .
shell> chown -R mysql data
shell> bin/mysqld_safe --user=mysql &

3.加上權限

macbook@jimmys-Macbook[[~/data/mysql/bin]$./mysql -u root
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.0.45 MySQL Community Server (GPL)

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql> create database testdb character set utf8;
Query OK, 1 row affected (0.04 sec)

mysql> grant all on *.* to jimmy@localhost identified by '1234';
Query OK, 0 rows affected (0.00 sec)

４.測試

macbook@jimmys-Macbook[[~/data/mysql/bin]$./mysql -u jimmy -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 5
Server version: 5.0.45 MySQL Community Server (GPL)

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql> use mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> select * from user;

jforum 討論區 測試

在安裝的過程當中，出現了一個很奇怪的error
Please give write access for the user who is running the webserver
to the file 'index.htm' and for the directory 'WEB-INF/config' and its
subdirectories before continuing.
叫你要把那些地方的權限修改成可以讀寫的，但是都改了仍舊不行
在網路上有找到一個解決的方法

命名一支為 __index.redirect 的檔案，且內容是空的就可以了

太神了，這樣竟然過了。