In Spring Framework 6.1 we added a number of improvements to data binding via constructor args such as DataBinder support for constructor binding (#26721) including nested constructors (#20806), customizing request parameter names for constructor binding (#30947), and declarative binding mode (#30948).
This makes constructor data binding a safer alternative to setter binding because it's selective about what we bind from, but to make it more complete, it needs to support collection and map arguments.
In Spring Framework 6.1 we added a number of improvements to data binding via constructor args such as
DataBindersupport for constructor binding (#26721) including nested constructors (#20806), customizing request parameter names for constructor binding (#30947), and declarative binding mode (#30948).This makes constructor data binding a safer alternative to setter binding because it's selective about what we bind from, but to make it more complete, it needs to support collection and map arguments.