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How to quickly start the basic configuration of IntelliJ IDEA, in view of this problem, this article introduces the corresponding analysis and solutions in detail, hoping to help more partners who want to solve this problem to find a more simple and easy way.

IntelliJ IDEA is an integrated environment for java programming language development. IntelliJ is recognized as the best java development tool in the industry. This article mainly introduces its installation, configuration of maven warehouse, debugging methods, recommendations of commonly used plug-ins, keyboard shortcuts and instructions for commonly used shortcut keys.

Idea2021 activation

Https://www.yisu.com/article/202607.htm

Https://www.yisu.com/article/202607.htm

Introduction

First of all, Baidu encyclopedia introduces IDEA.

IDEA, whose full name is IntelliJ IDEA, is an integrated environment for java programming language development. IntelliJ is recognized as the best java development tool in the industry, especially in intelligent code assistant, code autohint, refactoring, JavaEE support, various version tools (git, svn, etc.), JUnit, CVS integration, code analysis, innovative GUI design and other functions can be said to be extraordinary. IDEA is a product of JetBrains, a company headquartered in Prague, the capital of the Czech Republic, whose developers are mainly Eastern European programmers known for their rigour. Its flagship version also supports HTML,CSS,PHP,MySQL,Python and so on. The free version only supports a few languages such as Java,Kotlin.

Installation

Come to the official website https://www.jetbrains.com/idea/

Click the Download in the middle or upper right corner to download

For specific configuration, please refer to the following article

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Introduction to configuring maven-maven

Make-> Ant-> Maven-> Gradle Maven is an automated build tool provided by Apache for automated build and dependency management. It doesn't take long for the development team to automatically complete the basic construction configuration of the project.

Because Maven uses a standard directory structure and a default build life cycle. In the following steps, Maven makes it easier for developers to work.

Download maven

Http://maven.apache.org/download.cgi

Maven warehouse

Https://mvnrepository.com/

Construction link:

Configuration of Maven

[1] extract the compressed package of the Maven core program to a non-Chinese directory with no spaces

D:\ Environment\ apache-maven-3.6.3

[2] configure MAVEN_HOME or M2_HOME environment variables (configure to home directory)

[3] configure the path environment variable (configure to the bin directory; the value of the variable can also be configured directly to the full path: for example:

D:\ Environment\ apache-maven-3.6.3\ bin)

[4] verify that it is correct: mvn-v

Set up a local library

The core program of Maven does not contain specific functions and is only responsible for macro scheduling. The specific function is completed by the plug-in. The Maven core program looks for plug-ins in the local repository.

If it is not available in the local warehouse, it will be downloaded from the remote central warehouse. At this time, if you cannot access the Internet, you will not be able to perform the specific functions of Maven.

[1] default local warehouse: d:\ Program Files\ maven-Warehouse

[2] to modify the default local warehouse, you need to find settings.xml D:\ Environment\ apache-maven-3.6.3\ conf\ settings.xml first.

[3] set in the settings.xml file

The actual path to the local warehouse

[4] set Ali image in settings.xml file

Alimaven aliyun maven http://maven.aliyun.com/nexus/content/groups/public central

Configuration of maven in idea

Let's directly integrate Maven. Select your own Maven directory, and the settings file, and then configure your own repository reposiroty.

Just apply it directly.

DeBug

Plug-in recommendation

Translation

The use is simple: select the word or paragraph ctrl+shift+y translation, and ctrl+shift+s switch the translation source

GsonFormat-Plus

Keyboard shortcuts:

Default option + s (mac), Alt + S (win)

Maven Helper

Nowadays, Java projects are usually built using maven or gradle, and jar package conflicts are very common for maven projects.

So how can you more easily view and resolve jar package conflicts?

You can install the plug-in, and when you open the pom.xml file in IDEA after installation, there will be an extra "Dependency Analyzer" tab.

The plug-in supports the jar package that the value plug-in conflicts with, and you can choose the conflicting jar package to exclude it.

CodeGlance

Let your IDEAE have a mini-map, too.

Codota

Another thing I have to say is the auxiliary development artifact mentioned in the column: Codota

The power of the plug-in is:

Support for intelligent code auto-prompting, which can enhance the code hint function of IDEA.

By searching for functions that support JDK and well-known third-party libraries, you can see the use of this function by other well-known open source projects.

When we use a class for the first time and are not familiar with a function, we can use the plug-in to search for relevant usage and quickly imitate and learn.

The most commonly used functions of this class are also given at the top of the plug-in window. You can click to view the relevant usage cases, and the "view source" on the right side of each case can be redirected to the source code of the open source project corresponding to the fragment.

Https://www.codota.com/code

Use the example

Small green icons are provided by the Codota plug-in. The following ones are included with IDEA, and the percentage can be referenced.

Open the sample page

Rainbow Brackets

A simple but powerful plug-in that enhances the visual experience and simplifies the hassle of identifying blocks of code surrounded by each pair of parentheses.

For example, nested loops can be tedious because there are multiple parentheses nested between them, and the plug-in provides you with a good solution by adding multiple colors to the parentheses and range highlighting. You can highlight the blocks of code associated with each pair of parentheses.

Ini

Enable IDEA to load files in ini format

IDE Eval Reset

All JetBrains products have a 30-day trial, and the purpose of this plug-in is to reset the trial time so that you can try it indefinitely, which can be regarded as an alternative way to activate JetBrains.

The basic full range of supported JetBrains products are supported:

IntelliJ IDEA

AppCode

CLionDataGrip

GoLand

PhpStorm

PyCharm

Rider

RubyMine

WebStorm

Mybatisx

Official website: https://mp.baomidou.com/guide/mybatisx-idea-plugin.html# function

Details:

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Common shortcut keys

Hints and code generation section

Alt + Enter IDEA according to the problem of the cursor, provide quick repair selection Ctrl + Alt + T for the selected code pop-up surround option pop-up layer (try,if and other statements wrap) Alt + Insert code generation automatically, such as generated object set / get method, constructor, toString () and other Ctrl + O select rewritable method Ctrl + I select the realizable method Ctrl + / comment the line code of the cursor Different annotation symbols will be used according to the current file type

Select / move / [

Ctrl+ W Progressive selection Code Block ctrl+Shift+w Progressive deselect Code Block Ctrl+ D copy the line of the cursor or copy the selection and insert the copy below the cursor position Ctrl+Shift+ ↑ or ↓: move the current line or code structure Ctrl+ Y delete the line of the cursor or delete the selected line Ctrl+ X cut the line of the cursor or cut the selection

Code optimization

Ctrl + Alt + O optimizes imported classes, you can use Ctrl + Alt + L formatting code for the current file and the entire package directory, and you can use the

Find and replace

Ctrl + F text search in the current file Ctrl + Shift + F finds the entire project or files within the specified directory according to the input Ctrl + R carries out text substitution in the current file Ctrl + Shift + R replaces the corresponding content according to the input, and the scope is for the entire project or files within the specified directory

Read the code section

Ctrl + F12 pops up the current file structure layer (class method properties, etc.), which can be entered directly on the pop-up layer to filter the variable / class name / method name where the Ctrl + Q cursor is located (you can also press when prompted to add) Display document content shortcut keys 1, Ctrl related Ctrl + F text search in the current file (essential) Ctrl + R text replacement in the current file (essential) Ctrl + Z undo (required) Ctrl + Y delete the line of the cursor or delete the selected line (mandatory) Ctrl + X cut cursor line or cut select content Ctrl + C copy cursor line or copy selection Ctrl + D copy cursor Line or copy selection And insert the copy below the cursor position (required) Ctrl + W progressive selection code block. You can select the word or paragraph where the cursor is located Continuous press will expand the selection on the basis of the original selection (required) Ctrl + E displays the list of recently opened file records Ctrl + N finds the class file Ctrl + G according to the entered class name Ctrl + J inserts a custom dynamic code template Ctrl + P method parameter prompt to display the variable / class name / method name where the Ctrl + Q cursor is located Above (you can also press when prompted to add) Display the contents of the document Ctrl + U go to the method / interface definition of the parent class of the method where the current cursor is located, Ctrl + B enters the interface or definition of the method / variable where the cursor is located, which is equivalent to Ctrl + left-click Ctrl + K version control to submit the project. You need to add this project to version control before you can update the project with Ctrl + T version control. You need to add this project to version control before you can use Ctrl + H to display the hierarchy of the current class Ctrl + O Select the rewritable method Ctrl + I select the inheritable method Ctrl + unfold code Ctrl +-collapse the code Ctrl + / comment the line code of the cursor Different comment symbols (required) Ctrl + [move the cursor to the curly braces start position of the current code Ctrl +] move the cursor to the curly braces end position of the current code Ctrl + F1 display the error message Ctrl + F3 at the error code where the cursor is located, transfer to the next reference location of the selected word Ctrl + F4 close the current editing file Ctrl + F8 in Debug mode Set the current behavior breakpoint of the cursor, if it is already a breakpoint, remove the breakpoint Ctrl + F9 and perform Make Project operation Ctrl + F11 select files / folders, use mnemonics to set / cancel bookmarks Ctrl + F12 pop-up the current file structure layer, you can enter directly on the pop-up layer, filter Ctrl + Tab editing window switch, if in the switching process and press delete Close the selected window Ctrl + Enter intelligent delimited line Ctrl + End to the end of the file Ctrl + Home jump to the header Ctrl + Space basic code completion, which is occupied by the input method on the Windows system by default and needs to be modified It is suggested to change it to ALT+/ (essential) Ctrl + Delete to delete the word behind the cursor or the Chinese sentence Ctrl + BackSpace to delete the word in front of the cursor or the Chinese sentence Ctrl + 1 Magi 2Magazine 3. 9 navigate to the bookmark position of the corresponding value Ctrl + left-click on the open file title, pop up the file path Ctrl + cursor positioning press Ctrl do not release The class information summary Ctrl + left arrow key where the cursor is located will be displayed. The cursor jumps to the left beginning position of the current word / Chinese sentence Ctrl + right arrow key cursor jumps to the right beginning position of the current word / Chinese sentence Ctrl + forward key is equivalent to the mouse wheel forward effect Ctrl + rear arrow key is equivalent to the mouse wheel backward effect 2, Alt related Alt + `shows the common operation menu of version control pop-up layer Alt + Q pops up a prompt Display the declaration / context information of the current class Alt + F1 displays the current file to select the target pop-up layer, there are many targets in the pop-up layer can be selected Alt + F2 for the previous page, display all kinds of browsers open the target selection pop-up layer Alt + F3 select the text and look down one by one for the same text And highlight Alt + F7 to find the method / variable / class where the cursor is called Alt + F8 in the state of Debug, select the object, pop up the debug box for input evaluation expressions, view the debugging results of the input, Alt + Home locate / display to the current file Navigation BarAlt + Enter IntelliJ IDEA according to the problem of the cursor, provide quick repair options The result of the prompt varies with the position of the cursor (required) automatic generation of Alt + Insert code, such as the set / get method of the generated object and the constructor ToString (), etc. (essential) Alt + left arrow key to switch the currently open file view Alt + right arrow key to switch the currently open file view Alt + forward key the current cursor jumps to the previous method name location of the current file Alt + rear arrow key the current cursor jumps to the latter method name location of the current file Alt + 1 Of which 1 is Project most used 3, Shift related Shift + F1 if there is an external document can connect external document Shift + F2 jump to the last highlighted error or warning location Shift + F3 in find mode, find a match on the last Shift + F4 on the currently open file, use the new Windows window to open, the old window retains Shift + F6 to rename the file / folder Shift + F7 in Debug mode, smart step. There are multiple method calls on the line where the breakpoint is located, which method Shift + F8 pops up in Debug mode and pops out The effect shown is the same as F9 Shift + F9 is equivalent to clicking the Debug button of the toolbar Shift + F10 is equivalent to clicking the Run button of the toolbar Shift + F11 pop-up bookmark display layer Shift + Tab unindent Shift + ESC to hide the current or last active tool window Shift + End select the cursor to the current line end position Shift + Home select the cursor to the current line header position Shift + Enter to start a new line. Shift + left click on the open file name press this shortcut key, you can close the current file Shift + scroll before and after the scroll wheel of the current file scroll 4, Ctrl + Alt related Ctrl + Alt + L format code, you can use (essential) Ctrl + Alt + O to optimize imported classes for the current file and the entire package directory You can use (required) Ctrl + Alt + I cursor lines or selected parts for automatic code indentation for the current file and the entire package directory, similar to formatting Ctrl + Alt + T for the selected code pop-up surround option pop-up layer Ctrl + Alt + J pop-up template selection window Add the selected code to the dynamic template Ctrl + Alt + H call hierarchy Ctrl + Alt + B will skip to the specific implementation when used on the method name of a call, you can skip the interface Ctrl + Alt + V to quickly introduce variable Ctrl + Alt + Y synchronization, refresh Ctrl + Alt + S to open the IntelliJ IDEA system settings Ctrl + Alt + F7 display. Look for the place where the class or variable is called, and use the pop-up box to find out that Ctrl + Alt + F11 toggles the full-screen mode Ctrl + Alt + Enter with a line above the cursor. The cursor locates to the new line Ctrl + Alt + Home pop-up file associated with the current file Ctrl + Alt + Space class name automatically completes Ctrl + Alt + left arrow key to the place of the previous operation (necessary) Ctrl + Alt + right arrow key to the place of the previous operation (necessary) Ctrl + Alt + forward key in search mode, jump to the last found file Ctrl + Alt + rear arrow key in search mode Skip to the next found file 5, Ctrl + Shift related Ctrl + Shift + F find the entire project or files within the specified directory (required) Ctrl + Shift + R replace the corresponding content according to the input Scope for the entire project or files within the specified directory (required) Ctrl + Shift + J automatically merges the next line to the end of the current line (required) Ctrl + Shift + Z undo (required) Ctrl + Shift + W progressive deselect code block. You can select the word or paragraph where the cursor is located, and continuously press to expand the unchecked range on the basis of the original selection (required) Ctrl + Shift + N locate / open the file / directory through the file name To open the directory, you need to add a forward slash after the input (required) Ctrl + Shift + U to convert the selected code in turn uppercase / lowercase (required) Ctrl + Shift + T generates unit test classes for the current class If you already have a unit test class, you can select Ctrl + Shift + C to copy the current file disk path to the clipboard Ctrl + Shift + V pop-up cache of the most recent copy of the content manager pop-up layer Ctrl + Shift + E displays the recently modified file list pop-up layer Ctrl + Shift + H display method hierarchy Ctrl + Shift + B jumps to the type declaration Ctrl + Shift + I Quick View cursor Method or class definition Ctrl + Shift + A lookup action / set Ctrl + Shift + / code block comment (required) Ctrl + Shift + [check from the cursor position to its top bracket position Ctrl + Shift +] Select from the cursor position to its bottom bracket position Ctrl + Shift + + expand all codes Ctrl + Shift +-collapse all codes Ctrl + Shift + F7 highlight all selected text Press Esc highlight disappear Ctrl + Shift + F8 in Debug mode, specify breakpoint to enter conditional Ctrl + Shift + F9 to compile selected file / package / ModuleCtrl + Shift + F12 editor to maximize Ctrl + Shift + Space intelligent code hint Ctrl + Shift + Enter automatically end code Automatically add semicolons at the end of the line (necessary) Ctrl + Shift + Backspace go back to the last modified place Ctrl + Shift + 1 Magi 2 Magi 3. 9 quickly add a bookmark with the specified value Ctrl + Shift + left click to place the cursor over a class variable, press this shortcut key to directly locate the class (essential) Ctrl + Shift + left arrow keys on the code file, the cursor jumps to the left beginning of the current word / Chinese sentence At the same time, select the word / Chinese sentence Ctrl + Shift + right arrow keys on the code file, the cursor jumps to the right beginning of the current word / Chinese sentence, and select the word / Chinese sentence Ctrl + Shift + left arrow keys on the tools tab, narrow the tab area Ctrl + Shift + right arrow keys on the tools tab Expand the tab area Ctrl + Shift + forward key cursor over the method name, move the method in front of the previous method, adjust the method ordering Ctrl + Shift + rear arrow cursor over the method name, and move the method in front of the next method Adjust method order 6. Alt + Shift related Alt + Shift + N Select / add taskAlt + Shift + F display add to favorites pop-up layer / add to favorites Alt + Shift + C to view the list of changes in the most recent operation project Alt + Shift + I view the project current file Alt + Shift + F7 in Debug mode, the next step is to enter the current method body, if there is a method in the method body, it will enter the embedded method Follow this cycle to enter Alt + Shift + F9 pop-up Debug optional menu Alt + Shift + F10 pop-up Run optional menu Alt + Shift + left double-click to select the double-clicked word / Chinese sentence, press and hold You can select other words / Chinese sentences Alt + Shift + forward arrow key move cursor line up move Shift + rear arrow key move line down 7, other F2 jump to the next highlighted error or warning position (required) F3 in find mode, navigate to the next match F4 edit source F7 in Debug mode, go to the next step, if the current line breakpoint is a method Then enter the current method body, if the method body still has a method, then will not enter the embedded method F8 in Debug mode, go to the next step, if the current line breakpoint is a method, then do not enter the current method body F9 in Debug mode, resume the program to run But if there is a breakpoint below the breakpoint, stop at the next breakpoint F11 add bookmark F12 back to the previous tool window Tab indent ESC enter the code file window from the tool window Ctrl + Shift + Alt + V unformatted paste Ctrl + Shift + Alt + N go to the specified variable / method Ctrl + Shift + Alt + S Open the current project settings Ctrl + Shift + Alt + C copy reference information about how to quickly This is the end of the answer to the basic IntelliJ IDEA configuration question. I hope the above content can help you to a certain extent, if you still have a lot of doubts to be solved, you can follow the industry information channel to learn more related knowledge.

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