Idea create java web project
1. File-New Project specifies the tomcat version
2. Write business code SRC file is the back-end code, and WEB file is the front-end (refer to the teacher's class code structure)
![[External link image transfer failed. The source site may have an anti-leech link mechanism. It is recommended to save the image and upload it directly (img-TBoZeDeL-1611298641593)(assets/clip_image010.jpg)]](https://img-blog.csdnimg.cn/20210122145842355.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2N1aTExMDQ=,size_16,color_FFFFFF,t_70)
3. Add local tomcat, check port number, war and other startup programs
![[External link image transfer failed. The origin site may have an anti-leech link mechanism. It is recommended to save the image and upload it directly (img-k0YVkadT-1611298641595)(assets/clip_image012.jpg)]](https://img-blog.csdnimg.cn/20210122145851814.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2N1aTExMDQ=,size_16,color_FFFFFF,t_70)
![[External link image transfer failed. The origin site may have an anti-leech link mechanism. It is recommended to save the image and upload it directly (img-iKKTOFyU-1611298641596)(assets/clip_image014.jpg)]](https://img-blog.csdnimg.cn/20210122145859559.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2N1aTExMDQ=,size_16,color_FFFFFF,t_70)
4. The project still cannot be started, check the following figure
