IDEA开发工具实践应用

参考代码

noob-demo=》java-demo=》HelloWorld

IDEA下载安装

IDEA安装下载：官网安装下载（需要注册码），选择破解版安装（公众号软件管家：下载最新版本IDEA）

​ 下载安装一般不选择关联（否则其他一些文件关联默认用idea打开，可能会比较慢，一般正常文本可以用文本编辑器查看即可）

​ idea2018版本（参考2018.2.5）暴力破解，输入注册码

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​ 项目构建可以新建项目、导入现有项目、从远程仓库导入（版本管理）

补充：idea 激活码备份（idea2024）

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Java项目：HelloWorld

​ 创建一个简单的Java项目：File =》New Project，选择JDK版本和项目存放路径

​ （JDK可以选择本地安装的JDK路径，也可直接在idea中安装导入）

idea安装目录（简单理解每个目录存放的内容和作用），关注idea的配置信息

提高idea启动速度和运行速度：（考虑到一般用户的配置，一些参数配置比较低）

修改idea安装目录下的bin目录中的idea64.exe.vmoptions（64位）配置文件参数

关注前面三个参数：Xms最小启动内存参数、Xmx最大运行内存参数、-XX:ReservedCodeCacheSize保留代码占用的内存容量，可以结合电脑配置调整

参考：16G、i5分别调整：1000m、2000m、500m

-Xms128m
-Xmx2048m
-XX:+HeapDumpOnOutOfMemoryError
-XX:-OmitStackTraceInFastThrow
-XX:+IgnoreUnrecognizedVMOptions
-ea
-Dsun.io.useCanonCaches=false
-Dsun.java2d.metal=true
-Djbr.catch.SIGABRT=true
-Djdk.http.auth.tunneling.disabledSchemes=""
-Djdk.attach.allowAttachSelf=true
-Djdk.module.illegalAccess.silent=true
-Dkotlinx.coroutines.debug=off
-XX:CICompilerCount=2
-XX:ReservedCodeCacheSize=512m
-XX:CompileCommand=exclude,com/intellij/openapi/vfs/impl/FilePartNodeRoot,trieDescend
-XX:SoftRefLRUPolicyMSPerMB=50
-Dide.show.tips.on.startup.default.value=false

idea优化设置：

【1】File=>Settings（基于2018.2.5：或者通过View=>Toolbar调出）

idea主题

设置鼠标悬浮提示

idea2024：默认提供

idea2018.2.5：Editor=》General =》Show quick Documentation on mouse move(delay(ms)设置延迟时间)

设置方法分隔符

忽略大小写提示

​ 对于一些开发关键字，不强制大小写进行提示（例如不用输入System、而是输入system也有提示），提高开发效率

自动导包

​ 一般通过快捷键进行导包，可以配置自动导包、自动去包

取消单行显示tab（用于多个tab切换）

字体设置

文件模板配置

​ Editor=》File and Code Template

/**
 * @ClassName ${NAME}
 * @Description TODO
 * @Author Huh-x
 * @Date ${YEAR} ${DATE} ${TIME}
 */

编码格式

​ 可以设定Transparent自动转化

对比代码

​ eclipse中是拖拉拽tab，idea中可以选择

快捷键

​ 将idea快捷方式修改为eclipse（按照个人开发习惯进行配置）

项目构建

【1】新建module项目

File=》New Module =》选择Java，输入module名称，选择JDK版本进行创建

​ module移除（如果直接移除module项目则可能存在后遗症，一些项目关联的配置没有修改成功），移除module：右键选择指定module（remove module（移除项目关联）），然后再删除项目

【2】新建静态web项目

​ 2018.2.5版本：File=》New Module =》选择Static Web，可以选择相关的前端框架即可

​ 2024版本：File=》New Module =》选择框架模板即可

​ 最简单的实现就是创建一个Java项目，随后创建html文件，运行测试，然后可通过浏览器访问

【3】新建动态web项目

​ 2018.2.5版本：File=》New Module =》选择Java（Java EE：Web Application，勾选web.xml）

​ 启动配置tomcat运行动态web项目

【4】新建maven项目（配置阿里云镜像）

​ File=》New Module =》选择maven项目进行构建

【5】新建SpringCloud多模块父子依赖构建

【6】IDEA中的debug操作