检验，cardId与cardInfo这两个字段其中一个必须传值，也就是不能都是null值

Controller.java

@PostMapping(value = "/api/card/test/getCard")
	public JsonResult getCard(@RequestBody @Validated UserCardGetParam param) {
    // ...
  }

UserCardGetParam.java

import javax.validation.constraints.AssertTrue;

import lombok.Data;

@Data
public class UserCardGetParam {
	private Byte getType;
	/** card info */
	private CardInfo cardInfo;
	private Integer cardId;
	
	@AssertTrue(message="cardId must need.")
	private boolean isValid() {
		System.out.println("正在进行校验");
		if(cardId != null || cardInfo != null) {
			return true;
		}
		return false;
	}
}

https://stackoverflow.com/questions/1972933/cross-field-validation-with-hibernate-validator-jsr-303