java - controller返回的String，并没有这个地址啊？

Question

Answer 1

This is obviously a Spring framework. There must be a jsp or html named createUserForm in your static resources. If it is Spring MVC, the XML file you configure must have XML nodes for configuring prefix and suffix. If it is SpringBoot, then this The file should be placed under the resource directory. Just read more about Spring documentation

Answer 2

Incorrect configuration file

Answer 3

In this way, the return is not the url, but the name of a certain view