pom.xml文件修改 1.在dependencies 下添加 <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <scope>runtime</scope> </dependency> 2.在build > plugins > plugin 下添加 <configuration> <fork>true</fork> </configuration> 3.file > Build,Execution,Deployment > Compiler 勾選 Build project automatically 4.Crtl+Alt+Shift+/ 勾選 compiler.automake.allow.when.app.running5.瀏覽器控制檯[禁止緩存]勾選 Network > Disable cache