警告

Eclipse模式插件已经过时，并且与最近的IDEA 12+版本不兼容。如果你安装它，IDE将挂起每一个文件更改，并将响应极慢。

IntelliJ IDEA不使用自动构建，它在运行中检测错误，而不是通过编译器。类似于Eclipse模式将在IDEA 12中可用:

使用Build | Make，它调用增量的Make过程，只编译更改的和依赖的文件(它非常快)。

还有一个常见问题解答条目可能会有所帮助。

Update on the automatic make feature: When run/debug configuration is running, Make project automatically has no effect. Classes on disk will change only on Build | Make. It's the core design decision as in our opinion class changes on disk should be always under user's control. Automatic make is not the copycat of Eclipse feature, it works differently and it's main purpose is to save time waiting for the classes to be ready when they are really needed (before running the app or tests). Automatic make doesn't replace the explicit compilation that you still need to trigger like in the case described in this question. If you are looking for different behavior, EclipseMode plug-in linked in the FAQ above would be a better choice.

编辑运行/调试配置，以便在启动之前选择生成选项

选择“构建”选项后

上面的解决方案在我开发JBehave测试套件时非常适用

当Intellij在其他模块中遇到编译问题时，它会悄悄地失败，然后不执行自动编译。所以检查你的问题窗口

我最终录制了一个宏来保存并在一步中编译，并按Ctrl+s键映射到它。

您可以按ctrl+s键映射保存和编译在一个步骤。转到键映射设置并搜索Compile。

我得到错误:一些罐子不在类路径。因此，我只是删除损坏的jar并执行以下步骤

1.Project >  Setting>Build,Execution,Deployment>Compiler>check build project automatically
2.CTRL+SHIFT+A find/search **registry** --Check for below param
compiler.automake.allow.when.app.running
compiler.automake.trigger.delay=500---According to ur requirement
3.Add devtool in pom.xml
         <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </dependency>
4.Build ,If found any probelm while building ,saying some jar in not in class path.Just delete the corrupted jar
and re-build the project angain after sync with maven lib