Idea Guide - practical version

idea Guide - Basic Configuration:

Video link: https://www.bilibili.com/video/av21735428/?p=1

idea to install:

1. Shortcut create destop shortcut:

​ 32-bit launcher jdk1.7

​ 64-bit launcher jdk1.8

1. create associations

   Not recommended to check, check after starting to open these files need to start the idea

basic configuration

1. Set width font:

   editor -- font -- 勾选 show only monospaced fonts

2. Console settings:

   editor -- color scheme -- console font

3. Specify the file encoding:

   editor -- file encodings

   Note: Check the back of the property file Transparen navive-to-ascii conversion

   If you do not check in the configuration file will appear as the Chinese ASCII code, rather than Chinese

4. Scroll the mouse wheel to change the font size

   editor - General

   勾选 Change font size (Zoom) with Ctrl+Mouse Wheel

5. Show Line Numbers

   editor -- general -- appearance

   show line numbers

6. The method of spacing between the horizontal lines as there

   editor -- general -- appearance

   show method separators

7. Formatting code

   editor -- code style -- java -- blank lines

   keep maximum blank lines are set to 1

8. Automatically prompt

   editor -- general -- codecompletion

9. Automatic guide packet

   editor -- general -- auto import

   Set the java: insert imports pastes: all

   勾选：add unambiguous imports on the fly

   勾选：optimize imports on the fly (for current project)

10. The mouse was suspended in the class, the methods, the display prompts the document:

    (Prompt information when the mouse is moved to the method)> General, search show, then check the Show quick documentation on mouse move - Open file -> setting -> Editor

11. Set to open multiple files and branches display?

    Window→Editor Tabs→Tabs Placement→ 取消：Show Tabs in Single Row

    Set their own open file window

    configure - editor - general - editor tabs - tab limit: 30 can be set to

12. Hidden characters before parameters:

    settings - editor - appearance - do not check the show parameter name hints

13. idea Console Chinese garbled

    Idea.vmoptions click to open a file, append -Dfile.encoding = UTF-8 codes

    IntelliJ IDEA in the "Run / Debug Configurations", modifying the parameters of the virtual machine "VM options", with the additional content in the content file idea.vmoptions the same, are all -Dfile.encoding = UTF-8

14. Cancel spell checking, open Settings-> Inspection, cancel the "Spelling"

---

other settings:

6, turn off auto-save, open Settings-General, the anti-election "Synchronize file on frame activation" and "Save files on frame deactivation". Meanwhile modify unsaved asterisk appears, open the Settings-Editor-> Editor Tabs, hook on "Mark modified tabs with asterisk".

7, open the sequence of detection serialVersionUID, open Settings-> Inspections,

10, useless to hide files, such as IDEA project configuration file ( .iml and .idea), open the Settings-File Types, ignore files and folders added to hide file extensions.

​ *.iml;.idea;.myeclipse;.project.mymetadata;.settings;

11, code hints case insensitive, open Settings-> Editor-> Code Completion, the "Case sensitive completion" is set to None.

Close the browser cache

Open the Google browser, open the Network option bar F12, and then check the [✅] Disable cache.

Automatic compilation:

Specific steps: Hold down Ctrl + Shift + Alt + / and then into the Registry, check and adjust the delay parameters is automatically compiled.

• compiler.automake.allow.when.app.running -> automatic compilation
• compile.document.save.trigger.delay -> Automatic Updates file

PS: Online Few people mention compile.document.save.trigger.delay it is mainly for the static files such as JS CSS updates, will reduce the delay time, press F5 to refresh the page will be able to see the effect!

Use keyboard shortcuts:

Alt + enter: 1) the leader packet, 2) create variables to the subject

Notes: Ctrl + / single-line comment

Ctrl + shift + / multi-line comments

Ctrl + Alt + T: Add try catch

Alt + insert: add get / set methods

Formatting code: Ctrl + Alt + L

Code templates:

1. Add class comment template

settings -- editor -- file and code templates -- include -- file header

/**
    @Author: 张世罡 
    @Date： ${DATE}
    @Description: ${PACKAGE_NAME}
    @version: 1.0
 */
 2.添加方法注释模板
 settings -- editor -- live template -- myGroup 
 /**
    功能描述
    @param: $param$
    @return: $return$
    @author: $user$
    @date:$date$ $time$
*/

idea interface:

1. Show Toolbar

   view -- toolbar

2. Display in the sidebar

   view -- tool buttons

JVM configuration parameters

​ help -- edit custom vm options

​ -Xms1024m

​ -Xmx2048m

​ -XX:ReservedCodeCacheSize=500m

After setting the idea will greatly enhance the speed of response

Global settings carried out in two ways:

1. idea Welcome screen: welcome to intelliJ IDEA - configure - settings

   Enter the main interface: file - close project

2. file -- other settings -- settings for new projects

   Note: In the main interface file - setting will only take effect for the current project under settins, do not recommend this approach

Debug using:

1. F7 Step into: the implementation of the method call, enter internal methods
2. F8 Step over: the implementation of the method call, the method skips
3. F9 jump directly to the next breakpoint

Using the idea to create a web project

每次打开都是上一个工程，怎么给他关掉呢？

fle -- close Project -- configure -- settings -- Appearance & Behavior -- System Settings 

startup/Shutdown下：

不勾选 Reopen last project on startup 

1. New web project:

   create new project -- java -- web application

Select the java EE version will have a corresponding servlet version.

1. Deploy web project

   ​ Edit configuration -- +号 -- Tomcat server -- local

   1) Specify the server name

   2）Error：Application Server not specified

   Services not specified

   Select the path to the Tomcat

   3）Error：No artifacts marked for deployment

   Deployment projects not specified

   Click to fix repair

2. open browser

   after launch your favorite browser and select the check, you can start the service after

3. Configuration files can be automatically loaded the following two changes, from the server is restarted, save time

   ​ on 'update' action : redeploy

   ​ on frame deactivation : update classes and resources

Add third-party reliance as a web project:

1. Created under the lib folder under the WEB-INF, lib directory to copy gson

   (First copied into the gson API can not be used, the need for some configurations)

2. Click on the menu bar icon project structure

3. Select libraries - + number - java - find lib folder - OK - OK - Apply

4. Select Module can see the lib folder has been added to the inside of the dependence of the current project

5. Check lib entry into force, you can now use the gson in the project

Create a servlet:

1. New HelloServlet

   Found Httpservlet not imported package

2. Adding Tomcat environment: selected item - click the icon project structure - module - Dependencies - + number - select Tomcat - add selected - Check the Tomcat - OK

3. Run Tomcat access path servle-mapping is to

Maven configuration:

​ configure -- build,execution,deployment -- build tools -- maven

We need to modify three elements:

​ maven home directory:

​ user settings file

​ local repository

Create a project using Maven JavaSE

create new project - maven - Select create from archetype - choose to have the quickstart skeleton - complete set

After the project opens click on the bottom right corner of the Enable-Auto-Import

Using Maven to create a Java web project

create new project - maven - Select create from archetype - choose to have the webapp framework - complete set

After the project opens click on the bottom right corner of the Enable-Auto-Import

Found directory is incomplete:

Creating java in the main folder, resource folder

Right-java folder - mark directory as - sources root

Right-resource folder - mark directory as - resources root

Use maven release engineering:

1. Add the Tomcat plug-in the current project? ? ? ? ?

pom file, add the plugin

2. Use the Tomcat web publishing project

Use maven create an aggregate project

1. create new project - backbone selected site

2. Reception engineering and engineering background to create skeleton are selected site: Right-click on the mall project name - new - module - Select the site framework - the next step: to add as module to read none - setting sub-path and save the parent module in the same path - fill in the project name for the portal or back

   Note: The add as module to be changed so that none is affected by the parent module management sub-module, but not inherit mall

3. Front, back sub-module of three sub-modules

   A packaging: jar / jar / war

   Creating ways: quickstart / quickstart / webapp

   Note: dao, service layer quickstart way to create, web layer to create a webapp way

4. Add dao layer depend on the service layer, the service layer is added in the web layer dependent

5. web layer folder is incomplete, you need to create java, resources directory, and marks

svn project management

git project management

DeBug

Tip a cross to enter debug mode when intellij break point

View crosses information display No executable code found at line 39 in class package name. Class name,
my line is a line of java code