从eclipse 到IDEA 极简入门

作为一个java开发工作者，工欲善其事必先利其器。我们经常用的就是eclipse 和 IEDA这两个主流的开发工具。使用的一段时间，作为一个使用习惯eclipse转化到IDEA需要知道什么？

1，了解IDEA与eclipse之间概念区别

以是官方文档给出的区别，这样就避免了我们在使用过程出现问题；

2，我们在写代码经常会用到一些文本编辑的快捷，IEDA原生不做任何修改有如下的快捷键：

 

Eclipse		IntelliJ IDEA
Action	Shortcut	Action	Shortcut
Code completion	Ctrl+Space	Basic completion	Ctrl+Space
-	-	Smart completion	Ctrl+Shift+Space
-	-	Statement completion	Ctrl+Shift+Enter
Quick access	Ctrl+3	Search everywhere	Shift x 2
Maximize active view or editor	Ctrl+M	Hide all tool windows	Ctrl+Shift+F12
Open type	Ctrl+Shift+T	Navigate to class	Ctrl+N
Open resource	Ctrl+Shift+R	Navigate to file	Ctrl+Shift+N
-	-	Navigate to symbol	Ctrl+Shift+Alt+N
Next view	Ctrl+F7	-	-
-	-	Recent files	Ctrl+E
-	-	Switcher	Ctrl+Tab
Quick outline	Ctrl+O	File structure	Ctrl+F12
Move lines	Alt+Up/Down	Move lines	Shift+Alt+Up/Shift+Alt+Down
Delete lines	Ctrl+D	Delete lines	Ctrl+Y
Quick fix	Ctrl+1	Show intention action	Alt+Enter
Quick switch editor	Ctrl+E	Switcher	Ctrl+Tab
-	-	Recent files	Ctrl+E
Quick hierarchy	Ctrl+T	Navigate to type hierarchy	Ctrl+H
-	-	Navigate to method hierarchy	Ctrl+Shift+H
-	-	Show UML popup	Ctrl+Alt+U
Last edit location	Ctrl+Q	Last edit location	Ctrl+Shift+Backspace
Next editor	Ctrl+F6	Select next tab	Alt+Right
Run	Ctrl+Shift+F11	Run	Shift+F10
Debug	Ctrl+F11	Debug	Shift+F9
Correct indentation	Ctrl+I	Auto-indent lines	Ctrl+Alt+I
Format	Ctrl+Shift+F	Reformat code	Ctrl+Alt+L
Surround with	Ctrl+Alt+Z	Surround with	Ctrl+Alt+T
-	-	Surround with live template	Ctrl+Alt+J
Open declaration	F3	Navigate to declaration	Ctrl+B
-	-	Quick definition	Ctrl+Shift+I
Open type hierarchy	F4	Navigate to type hierarchy	Ctrl+H
-	-	Show UML popup	Ctrl+Alt+U
References in workspace	Ctrl+Shift+G	Find usages	Alt+F7
-	-	Show usages	Ctrl+Alt+F7
-	-	Find usages settings	Ctrl+Shift+Alt+F7
Open search dialog	Ctrl+H	Find in path	Ctrl+Shift+F
Occurrences in file	Ctrl+Alt+U	Highlight usages in file	Ctrl+Shift+F7
Copy lines	Ctrl+Alt+Down	Duplicate lines	Ctrl+D
Extract local variable	Ctrl+Alt+L	Extract variable	Ctrl+Alt+V
Assign to field	Ctrl+2/Ctrl+F	Extract field	Ctrl+Alt+F
Show refactor quick menu	Ctrl+Alt+T	Refactor this	Ctrl+Shift+Alt+T
Rename	Ctrl+Alt+R	Rename	Shift+F6
Go to line	Ctrl+L	Navigate to line	Ctrl+G
Structured selection	Shift+Alt+Up/Shift+Alt+Down	Select word at caret	Ctrl+W/Ctrl+Shift+W
Find next	Ctrl+J	Find next	F3
Show in	Ctrl+Alt+W	Select in	Alt+F1
Back	Ctrl+[	Back	Ctrl+Alt+Left
Forward	Ctrl+]	Forward	Ctrl+Alt+Right

3，写代码我们经常会忘记后面的这里我们需要提示我们就可以使用下面的快捷键

 

Eclipse		IntelliJ IDEA
Action	Shortcut	Action	Shortcut
Code completion	Ctrl+Space	Basic completion	Ctrl+Space
-	-	Smart completion	Ctrl+Shift+Space
-	-	Statement completion	Ctrl+Shift+Enter

4，写代码还会经常遇到是我们要快速的打印出内容或者写一个for循环IDEA有如下的快捷键

Template	Eclipse	IntelliJ IDEA
Define a main method	main	psvm
Iterate over an array	for	itar
Iterate over a collection	for	itco
Iterate over a list	for	itli
Iterate over an iterable using foreach syntax	foreach	iter
Print to System.out	sysout	sout
Print to System.err	syserr	serr
Define a static field	static_final	psf

5，说完写代码，现在我们要怎么样快速找到一个代码，或者其引用可以用

Eclipse		IntelliJ IDEA
Action	Shortcut	Action	Shortcut
Open search dialog	Ctrl+H	Find in path	Ctrl+Shift+F
References in workspace	Ctrl+Shift+G	Find usages	Alt+F7
-	-	Show usages	Ctrl+Alt+F7
-	-	Find usages settings	Ctrl+Shift+Alt+F7
Occurrences in file	Ctrl+Alt+U	Highlight usages in file	Ctrl+F7

6,格式化代码

Eclipse		IntelliJ IDEA
Action	Shortcut	Action	Shortcut
Format	Ctrl+Shift+F	Reformat code	Ctrl+Alt+L

7，Debugging 调试代码需要使用到的快捷键

Eclipse		IntelliJ IDEA
Action	Shortcut	Action	Shortcut
Step into	F5	Step into	F7
-	-	Smart step into	Shift+F7
Step over	F6	Step over	F8
Step out	F7	Step out	Shift+F8
Resume	F8	Resume	F9
Toggle breakpoint	Ctrl+Shift+B	Toggle breakpoint	Ctrl+F8
-	-	Evaluate expression	Alt+F8

8，从eclipse工程导入到IDEA

我们可以在打开的欢迎页面，点击 Import Project 导入, 或者选择 File | New | Project 导入已经存在的源码。

如下我们要导入的工程是maven工程或者是gradle工程可以如下图进行导入：