blocks|key|16139|text|此设置在“新项目的结构”对话框中更改。导航到“"File”“->”"New+Projects+Settings“”->+"Structure+for+New+Projects...“|type|unstyled|depth|inlineStyleRanges|entityRanges|data|16140|​|16141|📷|atomic|offset|length|16142|16143|接下来，适当修改"Project+SDK“和"Project+Language+Level”。|16144|16145|16146|16147|16148|以前版本的IntelliJ+IDEA在“文件”“->”“其他设置”“->”默认项目结构...“中有此设置。|16149|IntelliJ+IDEA+12在“模板项目结构...”中有此设置。而不是“默认项目结构...”|16150|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/864e4a38a0ef26bd3640d7f5a5b2b8cd.png|imageAlt|1|https://ask.qcloudimg.com/http-save/yehe-900000/6b783acbc5fc2d40f9e42d80e8552ac3.png^0|0|0|0|1|0|0|0|0|0|0|1|1|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|15|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|16|8|@]|9|@$G|17|H|18|1|19]]|A|$]]|$1|I|3|C|5|6|7|1A|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|1B|8|@]|9|@]|A|$]]|$1|L|3|C|5|6|7|1C|8|@]|9|@]|A|$]]|$1|M|3|E|5|F|7|1D|8|@]|9|@$G|1E|H|1F|1|1G]]|A|$]]|$1|N|3|C|5|6|7|1H|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|1I|8|@]|9|@]|A|$]]|$1|P|3|Q|5|6|7|1J|8|@]|9|@]|A|$]]|$1|R|3|S|5|6|7|1K|8|@]|9|@]|A|$]]|$1|T|3|-4|5|6|7|1L|8|@]|9|@]|A|$]]]|U|$V|$5|W|X|Y|A|$Z|10|11|-4]]|12|$5|W|X|Y|A|$Z|13|11|-4]]]]

This setting is changed in the &quot;Structure for New Projects&quot; dialog. Navigate to &quot;File&quot; -&gt; &quot;New Projects Settings&quot; -&gt; &quot;Structure for New Projects...&quot;
<a href="https://i.stack.imgur.com/D8swA.png" rel="noreferrer"><img src="https://i.stack.imgur.com/D8swA.png" alt="Selecting Structure For New Projects" /></a>
Next, modify the &quot;Project SDK&quot; and &quot;Project Language Level&quot; as appropriate.
<a href="https://i.stack.imgur.com/VTbzR.png" rel="noreferrer"><img src="https://i.stack.imgur.com/VTbzR.png" alt="Selecting Project Language Level" /></a>
<hr />
Previous versions of IntelliJ IDEA had this setting in &quot;File&quot; -&gt; &quot;Other Settings&quot; -&gt; &quot;Default Project Structure...&quot;.
IntelliJ IDEA 12 had this setting in &quot;Template Project Structure...&quot; instead of &quot;Default Project Structure...&quot;

blocks|key|232514|text|另一个值得检查的地方:查看项目的pom.xml，如果您使用的是Maven编译器插件，请查看源/目标配置，并确保它是所需的Java版本。我发现在下面的代码中我有1.7；我把它改为1.8，然后一切都能在IntelliJ中正确编译。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|232515|<build>
<plugins>
++++<plugin>
++++++++<groupId>org.apache.maven.plugins</groupId>
++++++++<artifactId>maven-compiler-plugin</artifactId>
++++++++<version>2.3.2</version>
++++++++<configuration>
++++++++++++<source>1.8</source>
++++++++++++<target>1.8</target>
++++++++++++<encoding>UTF-8</encoding>
++++++++</configuration>
++++</plugin>
</plugins>
</build>|code-block|syntax|javascript|232516|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

One other place worth checking: Look in the pom.xml for your project, if you are using Maven compiler plugin, at the source/target config and make sure it is the desired version of Java. I found that I had 1.7 in the following; I changed it to 1.8 and then everything compiled correctly in IntelliJ. 

<pre><code>&lt;build&gt;
&lt;plugins&gt;
 &lt;plugin&gt;
 &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
 &lt;artifactId&gt;maven-compiler-plugin&lt;/artifactId&gt;
 &lt;version&gt;2.3.2&lt;/version&gt;
 &lt;configuration&gt;
 &lt;source&gt;1.8&lt;/source&gt;
 &lt;target&gt;1.8&lt;/target&gt;
 &lt;encoding&gt;UTF-8&lt;/encoding&gt;
 &lt;/configuration&gt;
 &lt;/plugin&gt;
&lt;/plugins&gt;
&lt;/build&gt;
</code></pre>

blocks|key|16214|text|对于最新版本的intellij，要为新项目设置缺省jdk/sdk，请转到|type|unstyled|depth|inlineStyleRanges|entityRanges|data|16215|Configure->Structure+for+New+Projects+->+Project+Settings+->+Project+SDK|offset|length|style|CODE|16216|entityMap^0|0|0|20|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

For latest version intellij, to set default jdk/sdk for new projects go to

<code>Configure-&gt;Structure for New Projects -&gt; Project Settings -&gt; Project SDK</code>

blocks|key|232575|text|在我的linux机器上，我使用如下脚本：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|232576|export+IDEA_JDK=/opt/jdk14
/idea-IC/bin/idea.sh|code-block|syntax|javascript|232577|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

On my linux machine I use a script like this:
<pre><code>export IDEA_JDK=/opt/jdk14
/idea-IC/bin/idea.sh
</code></pre>

blocks|key|16297|text|我使用的是IntelliJ+2020.3.1和文件>其他设置...菜单选项已消失。我像往常一样去设置并搜索"jdk“。在Build，Execution，Deployment+>+Build+Tools+>+Maven+>+Importing下，我找到了将解决我的特定问题的设置：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|16298|用于导入器的JDK。|16299|​|16300|📷|atomic|offset|length|16301|16302|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/1217fa865c3b6707e517ca653e617fd4.png|imageAlt^0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@$I|Y|J|Z|1|10]]|A|$]]|$1|K|3|E|5|6|7|11|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|M|$N|$5|O|P|Q|A|$R|S|T|-4]]]]

I am using IntelliJ 2020.3.1 and the File &gt; Other Settings... menu option has disappeared. I went to Settings in the usual way and searched for &quot;jdk&quot;. Under Build, Execution, Deployment &gt; Build Tools &gt; Maven &gt; Importing I found the the setting that will solve my specific issue:
JDK for importer.
<a href="https://i.stack.imgur.com/4b4pA.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4b4pA.png" alt="IntelliJ 2020.3 Settings dialog" /></a>

I use IntelliJ IDEA as my development environment, and Maven for dependency management. I frequently build my project structure (directories, poms, etc) outside of IDEA and then import the project into IDEA using <code>Import project from external model</code>. This works great, except that in my poms I specify that the maven-compiler-plugin should use JDK 1.6, and when I import, IDEA informs me that the <code>Language Level Changed</code> and that <code>Language level changes will take effect on project reload</code>, and then prompts to reload the project. This is annoying because I always use the same JDK version.

How do I change the default JDK that IntelliJ IDEA uses, so that I don't have to reload my project every time I import a new project?

How do I change the IntelliJ IDEA default JDK?

IntelliJ IDEA

编译器

Java

我使用IntelliJ IDEA作为我的开发环境，并使用Maven进行依赖管理。我经常在IDEA之外构建我的项目结构(目录、poms等)，然后使用Import project from external model将项目导入IDEA。这很有效，除了在我的pom中我指定maven-Language level chang...

问如何更改IntelliJ IDEA的默认JDK？
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