java - 百里香叶绑定文件到对象(thymeleaf bind file to object)

Question

i am trying to bind multiple files to an object as a byte array, but thymeleaf instead it bind only file names as a byte array.

(我试图将多个文件作为字节数组绑定到一个对象，但是百里香相反，它仅将文件名作为字节数组绑定。)

How can i catch file in controller?

(如何在控制器中捕获文件？)

or bind file bytes?

(或绑定文件字节？)

Html:

(HTML：)

<form th:action="@{/add}" th:object="${testObject}" method="post">
<span>add key</span>
<input class="btn btn-primary btn-sm" th:field="*{privatekey}" type="file" name="file">
<span>add key</span>
<input class="btn btn-primary btn-sm" th:field="*{publickey}" type="file" name="file">
<button type="submit">Seve</button>

testObject like:

(testObject像：)

public class TestObject {
...
@Column(name = "privatekey")
private byte[] privatekey;

@Column(name = "publickey")
private byte[] publickey;
}

Controller:

(控制器：)

@PostMapping("/add")
    public String singleFileUpload(@ModelAttribute("testObject") TestObject testObject,
                               RedirectAttributes redirectAttributes,
                               Principal principal) {

    testObjectService.save(testObject);
    return "redirect:test/page";
}

  ask by Пётр П translate from so

Answer 1

等待大神答复