使用 ajax 将 formData 发送到 spring 服务器时如何添加对象列表

问：

objs 值在如下编写的代码中为 null。我尝试了各种方法，但结果是 objs 为 null。如何在FormData中添加对象列表？

在“网络”选项卡上检查有效负载时，objs 如下所示。

obj[0]: {"name":"n1", "age":10}
obj[1]: {"name":"n2", "age":20}

此外，当我检查 from 和 时，objs 的值如下。HttpServletRequest requestrequest.getParameterMap()

["{"name":"n1", "age":10}", "{"name":"n2", "age":20}"]

JavaScript的

$('#submit-button').click(
      function () {
        var objs = [{"name":"n1", "age":10}, {"name":"n2", "age":20}];
      
        var formData = new FormData();
        formData.append("title", $('#title').val());
        formData.append("summary", $('#summary').val());
        formData.append("content", $('#content').val());
        for (var i=0; i < objs.length; i++) {
          formData.append("objs[" + i + "]", JSON.stringify(objs[i])); //this is not working
          //formData.append("objs", objs[i]); //this is not working
          //formData.append("objs[" + i + "].name", objs[i].name); //this is not working
        }

        $.ajax({
          url: "/example",
          type: "POST",
          data: formData,
          enctype: "multipart/form-data",
          contentType: false,
          processData: false
        });
      }
    )

Java Spring 中的 DTO

public record ExampleRequest(
        @NotBlank
        String title,
        @NotBlank
        String summary,
        @NotBlank
        String content,
        @NotNull
        List<OBJ> objs,
){}

public record OBJ(
    String name,
    Integer age
) {}

控制器

    @PostMapping("/example")
    public String example(
            @Validated @ModelAttribute ExampleRequest exampleRequest, //request.objs is null...
            BindingResult bindingResult
    ) {}

我希望在 javascript 中处于春季状态。帮帮我。。。var objs = [{"name":"n1", "age":10}, {"name":"n2", "age":20}];List<OBJ>