Spring Boot and MVC: How to set default value for @RequestBody object fields from application.properties?

spring, spring-boot, spring-mvc

Solution

It isn't going to work that way. Spring can only replace values in managed beans, yours is constructed from request parameters. What you can do is inject a value into your controller and use that

public class UserController

    @Value("${userList.pageSize:500}")
    private int pageSize;

This value you can then use in your method to set the `pageSize` on the object.

Problem

I am writing following code: ``` @RestController @RequestMapping("/user") public class UserController { @Autowired private JdbcTemplate jt; @RequestMapping("/getUsers") public ListResult getUsers(@RequestBody GetUsersArgs args) { // paging query that returns ListResult object. // ... } private static class GetUsersArgs { public int firstRowIndex = 0; public int pageSize = 500; } } ``` What I want to do is, to set the default value for pageSize field of GetUsersArgs object from application.properties file of Spring Boot. When the content of application.properties file is as follows, ``` server.port: 9000 management.port: 9001 userList.pageSize: 100 ``` pageSize field must be set to 100. Otherwise, set to 500. How can it be done?

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