Intellij IDEA配置优化
1. 在线激活
安装IntelliJ IDEA 2016.1.2版本后，在联网状态下激活。Help --> Register，选择lisence server，粘贴地址http://www.iteblog.com/idea/key.php到lisence server address中，点击discover server按钮即可。
1. 优化JVM参数
修改 IntelliJ IDEA 2016.1.2/bin/idea.exe.vmoptions【记得备份】文件，如果是x64系统，修改idea64.exe.vmoptions文件中的参数，具体参数如下：
-Xms512m
-Xmx750m
-Xmn264m
-XX:MaxPermSize=350m
-XX:PermSize=128m
-XX:ReservedCodeCacheSize=240m
-Xverify:none
-Xnoclassgc
-XX:+UseParNewGC
-XX:+UseConcMarkSweepGC
-XX:SoftRefLRUPolicyMSPerMB=50
-ea
-server
-Dsun.io.useCanonCaches=false
-Dsun.awt.keepWorkingSetOnMinimize=true
-Djava.net.preferIPv4Stack=true
-XX:+HeapDumpOnOutOfMemoryError
-XX:-OmitStackTraceInFastThrow
注：-Xms512m 设置初时的内存大小，提高Java程序的启动速度
-Xmx750m 设置最大内存数，提高该值，可以减少内存Garage收集的频率，提高程序性能
-Xverify：none 关闭Java字节码验证，从而加快了类装入的速度，并使得在仅为验证目的而启动的过程中无需装入类，缩短了启动时间
-XX:+UseParNewGC 使用并行收集算法
-server 控制内存garage方式，这样你无需在花一到两分钟等待内存garage的收集
-Dsun.awt.keepWorkingSetOnMinimize=true 可以让IDEA最小化到任务栏时依然保持以占有的内存，当你重新回到IDEA，能够被快速显示，而不是由灰白的界面逐渐显现整个界面，加快回复到原界面的速度。
2. 基本常用设置
设置外观字体：File -> Settings -> Appearance & Behavior -> Appearance -> 勾选 Override default fonts by (not Recommended)
设置 Name：微软雅黑、Size：12、Presentation Mode：24
去掉 Animate windows，勾选 Show tool window bars
启动时不打开工程：File -> Settings -> Appearance & Behavior -> System Settings -> Startup/Shutdown 标签项 -> 去掉 Reopen last project on startup
关闭确认退出选项：File -> Settings -> Appearance & Behavior -> System Settings -> Startup/Shutdown 标签项 -> 去掉 Confirm application exit
在同一窗口打开工程：File -> Settings -> Appearance & Behavior -> System Settings -> Project Opening 标签项 -> 勾选 Open project in ths same window
设置自动保存：File -> Settings -> Appearance & Behavior -> System Settings -> Synchronization 标签项 ->
全部勾选包括 Save files automatically.. 然后设置30 sec.
关闭自动检测新版本更新：File -> Settings -> Appearance & Behavior -> System Settings -> Updates -> 去掉 Automatically check updates for...
关闭IDEA的使用习惯统计：File -> Settings -> Appearance & Behavior -> System Settings -> Usage Statistics -> 去掉 Allow sending...
=======================================================================================================
通过 Ctrl + 鼠标调整字体：File -> Settings -> Editor -> General -> Mouse 标签项 -> 勾选 Change font size (Zoom) with Ctrl + Mouse Wheel
让光标不随意定位：File -> Settings -> Editor -> General -> Virtual Space 标签项 -> 去掉 Allow placement of caret after end of line
显示虚拟空间：File -> Settings -> Editor -> General -> Virtual Space 标签项 -> 勾选 Show virtual space at file bottom
去除每行多余空格：File -> Settings -> Editor -> General -> Other 标签项 -> 设置 Srip trailing spaces on Save，下拉选择 All
去除光滑滚动：File -> Settings -> Editor -> General -> Scrolling 标签项 -> 去掉 Smooth scrolling
自动 import 包：File -> Settings -> Editor -> General -> Auto Import -> 勾选 Optimize imports on the fly、Add unambiguous imports on the fly
显示行号：File -> Settings -> Editor -> General -> Appearance -> 勾选 Show line numbers
显示空白符：File -> Settings -> Editor -> General -> Appearance -> 勾选 Show whitespaces
代码自动补齐(针对小写)：File -> Settings -> Editor -> General -> Code Completion -> Code Completion 标签项 -> 设置 Case sensitive completion：none
勾选 Autopopup documentation in (ms) ： 200，勾选 Parameter in (ms) ：200
代码折叠：File -> Settings -> Editor -> General -> Code Folding -> 去掉 One-line methods
用*标识编辑过的文件：File -> Settings -> Editor -> General -> Editor Tabs -> Tab Appearance 标签项 -> 勾选 Mark modified tabs with asterisk
限制 Tab 标签页数量：File -> Settings -> Editor -> General -> Editor Tabs -> Tab Closing Policy 标签项 -> 设置 Tab limit ：20
输入“右}”时，不要格式化代码块：File -> Settings -> Editor -> General -> Smart Keys -> 去掉 Reformat block on typing '}'
设置 Reformat on paste ：None
代码字体风格：File -> Settings -> Editor -> Colors & Fonts -> Font -> 选择 Darcula 设计，点击 Save As备份一套然后编辑
修改 Primary font 的字体，勾选 Show only monospaced fonts，只显示等宽字体
设置光标所在行的背景：File -> Settings -> Editor -> Colors & Fonts -> General -> Editor -> Caret row -> Background
取消代码拼写检查：File -> Settings -> Editor -> Inspections -> Spelling -> Typo -> 去掉 Process code、Process literals、Process comments
统一编码格式：File -> Settings -> Editor -> File Encodings -> 设置 IDE Encoding、Project Encoding、Defalut encoding for properties files
勾选 Transparent native -to-ascii conversion
过滤的文件类型及目录：File -> Settings -> Editor -> File Types -> Ignore files and folders -> 添加 *.iml;*.idea;*.classpath;*.project;*.settings;target;
=======================================================================================================
禁用插件：File -> Settings -> Plugins -> 如：ASP、Cloud Foundry integration、CloudBees integration、CVS Integration、Flash/Flex Support、
TFS Integration、Google App Engine Integration
=======================================================================================================
备份个性化设置：File -> Export Settings
转载自http://www.cnblogs.com/playcode/p/5588707.html