java learnging

Version Eclipse 3.1

1.性能

    a. 禁用缓存远程资源
       Window -> Preferences -> Internet -> Cache -> 选择Disable Caching
       这样在打开web.xml等文件时就不会 Loading xmlns 之类的信息了
   
    b. 禁用有效性验证
       Window -> Preferences -> Validation -> 选择Deselect All
       可能有效性验证是个不错的功能，不过有时候需要花的时间太长，有点受不了，基本上也不怎么需要
    c. 禁用启动eclipse时自动构建
       Window -> Preferences -> Launching -> 不选择 Build before launching

2.个人嗜好

    a. 修改Ant Document Url
       Window -> Preferences -> Ant -> Document Url -> 选择Ant Document目录
       这样要比eclipse默认去apache的网站访问快多了
   
    b. 修改快捷键的设定
       Window -> Preferences -> General -> Keys -> 按自己的需要修改
       尤其是Content assist 这么一个好用的功能和我的输入法冲突了，只有改了

    c. 修改java文件的source和output folder
       Window -> Preferences -> Java -> Build Path ->选择 Folders，并设为src和classes
       这样的项目文件目录比较标准，不过和maven的标准不太一样哦

    d. 修改Mark Occerencs
       Window -> Preferences -> Java -> Editor -> Mark Occerencs -> 把Mark Occerencs置为disable
       这样在选择一个单词的时候，与这个单词“具有同样含义”的单词就不会同时加亮了

Eclipse 3.0/3.1

Subclipse releases for Eclipse 3.x are hosted at our update site. Add http://subclipse.tigris.org/update as an update site in Eclipse's update manager (which you can find in the Help menu).

The update site itself can be downloaded and used as a local update site as well. Simply unzip the site archive, and add the path as a new "Local Site" in the Eclipse update manager. You can also host your own internal Subclipse update site by placing the site on your own HTTP server (be sure to update site.xml appropriately).

We also provide instructions for installing Subclipse in Eclipse 3.x

Eclipse 2.1.3

Subclipse 0.9.3.3 is linked against Subversion 1.1.4. Binaries for Windows are included.

Development for this version of Eclipse is no longer active. There are no new releases planned.

Download the Eclipse 2.x version

Note：如果把文件直接unzip到eclipse的安装目下，在使用的时候会没有授权文件文件之类的错误。

修改默认字符集（default character set）
在mysql的my.ini配置文件中设置，这样在mysql启动后就会自动加载
例如：把默认字符集设置为UTF-8

default-character-set=utf8

查看变量值：
例如：查看字符集设置

SHOW VARIABLES LIKE 'character_set_%';
SHOW VARIABLES LIKE 'collation_%'; 

 set  character_set_server  = utf8;
 set  character_set_system  = utf8;
 set  character_set_database  = utf8;
 set  character_set_client  = utf8;
 set   character_set_connection  = utf8;
 set  character_set_results = utf8;
 
 set collation_connection = utf8_general_ci;
 set collation_database = utf8_general_ci;
 set  collation_server = utf8_general_ci;