方法1
IDEA 运行报错：Error running '***': Command line is too long
技术标签： IDEA
Error running ‘Test’: Command line is too long. Shorten command line for Test or also for Application default configuration
解决方案：
点击Run–>Edit Configurations
方法2
新项目再Idea里面启动的时候，有的时候报错Error running ‘Application’: Command line is too long. Shorten command line for Application or aalso for Spring Boot default configuration，报错信息如下所示
怎么解决呢，首先找到项目里面的idea/workspace.xml文件，然后再找到<component name="PropertiesComponent"></component >标签，标签如下所示
然后再在component 标签里加一行 <property name="dynamic.classpath" value="true" />，就是变成下面这样