从事 java 开发工作两年，对 java 的开发工具 IDEA 是最为满意，编辑、编译、UT\CT全部本地搞定。下面简单介绍 IDEA 的安装与使用。
Step 1: 官网下载 IDEA 软件安装包，选择免费的开源版本，手动安装；
https://www.jetbrains.com/idea/download/#section=windows
Step 2:下载 JDK
用 IDEA 创建 project,要想完成编译必须下载 jDK，并且安装，如安装在以下目录 C:\Program Files\Java\jdk-11.0.1 在IDEA configure 好，可能遇到一系列问题。
ERROR 1: Connect to repo.maven.apache.org:443
[ERROR] Plugin org.springframework.boot:spring-boot-maven-plugin:1.5.4.RELEASE or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.springframework.boot:spring-boot-maven-plugin:jar:1.5.4.RELEASE: Could not transfer artifact org.springframework.boot:spring-boot-maven-plugin:pom:1.5.4.RELEASE from/to central (https://repo.maven.apache.org/maven2): Connect to repo.maven.apache.org:443 [repo.maven.apache.org/151.101.196.215] failed: Connection timed out: connect -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResolutionException
修改 setting.xml 解决：
打开自己的maven的setting配置文件
根据 User setting file 提供的路径打开 setting.xml,如果此文件不存在，可以创建一个，内容如下：
<?xml version="1.0" encoding="UTF-8"?>
<settings xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/SETTINGS/1.0.0">
<proxies>
<proxy>
<id>optional</id>
<active>true</active>
<protocol>http</protocol>
<username>proxyuser</username>
<password>proxypass</password>
<host>10.144.1.10</host>
<port>8080</port>
<nonProxyHosts>*.nokia.com</nonProxyHosts>
</proxy>
</proxies>
<servers>
<server>
<id>deploymentRepo</id>
<username>anonymous</username>
<password>anonymous</password>
</server>
</servers>
</settings>
加入如下节点，保存；
<mirrors>
<mirror>
<id>osc</id>
<mirrorOf>*</mirrorOf>
<url>http://maven.oschina.net/content/groups/public/</url>
</mirror>
</mirrors>
然后 重新编译,即可成功！如果依旧没有成功，把刚刚添加的 <mirrors>节点内容全部删掉，重新更新maven依赖，然后重新编译，这个问题就没有了。
ERROR 2: SDK 版本不匹配
Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project FileSystem: Compilation failure: Compilation failure:
jdk-11.0.1 太新了，卸载掉，安装 jdk-8u92-windows-x64.exe
根据下面提示的信息中重新设置 JDK
Maven 3.3.1+ requires JDK 1.7+. Please set appropriate JDK at Settings | Build, Execution, Deployment | Build Tools | Maven | Runner | JRE
ERROR 3：plugin 无法下载
设置代理，File->Settings->Plugins, 点击Updates右边的符号，选择 Http Proxy Settings
ERROR 4: SNAPSHOT dependency 的错误
Failed to execute goal on project Harmonization-API: Could not resolve dependencies for project com.nokia.imp:Harmonization-API:jar:2.0.0-SNAPSHOT: Could not find artifact com.nokia.imp:MappingGenerator-API:jar:2.0.0-SNAPSHOT -> [Help 1]
勾选 SE,如下：
ERROR 5: svn 下载失败
https://tortoisesvn.net/downloads.html
安装的时候注意勾选 command line
ERROR 6: CMake 问题
CMake was unable to find a build program corresponding to "Unix Makefiles". CMAKE_MAKE_PROGRAM is not set
http://www.cygwin.com/
下载安装 cygwin
