Spring boot uploads pictures and displays them on the page and summarizes the problems encountered

Recently, in the process of building a website using spring boot, we encountered such a problem: when registering, users need to upload their own avatar. After successful registration, they jump to the personal center and display user information in the personal center There was a problem in displaying the Avatar: when uploading the avatar, I saved the avatar in the static folder under the project file, saved its address in the corresponding user in the database, and added a hot deployment in the idea, but I still couldn't display the avatar after registering and jumping to the personal center, Only when the next start-up project enters the personal center.

This problem has been bothered for a long time. Finally, the solution is as follows: create a webapp folder in the main directory and configure its path. The following is a small demo of the solution, which is relatively simple. Please forgive me ~ ~ the core code is as follows:

Registration interface:

Control is as follows:

Personal Center:

Configuration of webapp path

Corresponding user entity class:

Interface of user entity class:

The final operation is as follows:

Register to upload Avatar:

Personal Center:

PS: if spring security is combined, you only need to start from session SPRING_ Security_ CONTEXT. authentication. principal. Just get the information from XXX.

Attach the address of the uploaded Demo:

http://xiazai.jb51.net/201712/yuanma/demo5 (jb51.net). rar

summary

The above is a summary of the spring boot implementation of uploading pictures and displaying them on the page and the problems encountered. I hope it will be helpful to you. If you have any questions, please leave me a message and Xiaobian will reply to you in time. Thank you very much for your support for the programming tips website!