Spring Boot中如何将多个提交按钮映射到独立控制器方法

我有如下提交按钮表单：

<form>
    <input type="submit" class="button" name="Test 1" value="Test 1">
    <input type="submit" class="button" name="Test 2" value="Test 2">
    <input type="submit" class="button" name="Test 3" value="Test 3">
    <input type="submit" class="button" name="Test 4" value="Test 4">
    <input type="submit" class="button" name="Test 5" value="Test 5">
</form>

需求是让每个按钮映射到独立的Spring Boot控制器方法，最初尝试定义多个@GetMapping("/panels")方法无法实现，最终通过以下方案解决：

后端控制器实现 #

@Controller
@RequestMapping("all-panels")
public class PanelsController {
    @GetMapping()
    public String allPanels() {
        System.out.println("BASE PANELS PAGE!");
        return "panels";
    }

    @GetMapping("/panel1")
    public String test1() {
        System.out.println("TEST 1!");
        return "panels";
    }

    @GetMapping("/panel2")
    public String test2() {
        System.out.println("TEST 2!");
        return "panels";
    }

    @GetMapping("/panel3")
    public String test3() {
        System.out.println("TEST 3!");
        return "panels";
    }

    @GetMapping("/panel4")
    public String test4() {
        System.out.println("TEST 4!");
        return "panels";
    }

    @GetMapping("/panel5")
    public String test5() {
        System.out.println("TEST 5!");
        return "panels";
    }
}

前端表单修改 #

将原来的<input type="submit">替换为<button>标签，并通过formaction属性指定每个按钮对应的控制器接口路径：

<form>
    <button class="button" type="submit" formaction="/all-panels/panel1">Test1</button>
    <button class="button" type="submit" formaction="/all-panels/panel2">Test2</button>
    <button class="button" type="submit" formaction="/all-panels/panel3">Test3</button>
    <button class="button" type="submit" formaction="/all-panels/panel4">Test4</button>
    <button class="button" type="submit" formaction="/all-panels/panel5">Test5</button>
</form>

该方案实现了每个按钮对应独立的控制器方法，且点击按钮后仍会返回面板页面。

内容的提问来源于stack exchange，提问作者Grant Allan