Question

我正在尝试使用Parts从多部分表单中获取值，而不使用DiskFileItemFactory。在这段代码中，我能够处理文件，但是不确定如何获取传递的其他非文件值。

failed assertion `For color attachment 0, the renderPipelineState pixelFormat must be MTLPixelFormatInvalid, as no texture is set.'

}

Answer 1

请在下面找到：

    @WebServlet(name = "ImageHandler", urlPatterns = {"/ImageHandler"})
@MultipartConfig(maxFileSize = 100 * 1024 * 1024)  // 100MB max
public class ImageHandler extends HttpServlet {

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();

        String name = request.getParameter("name");
        out.println("<br>name: " + name);

        // Create a new file upload handler
        InputStream inputStream = null;

        // obtains the upload file part in this multipart request
        Part filePart = request.getPart("file");

        if (filePart != null) {
            // prints out some information for debugging
            out.println("<br>getName: " + filePart.getName());
            out.println("<br>getSize: " + filePart.getSize());
            out.println("<br>getContentType: " + filePart.getContentType());

            // obtains input stream of the upload file
            //inputStream = filePart.getInputStream();
        }
    }

}

HTML格式：

<form action="ImageHandler" method="post" enctype="multipart/form-data" role="form">
            Name: <input  maxlength="100" type="text" name="name" class="form-control" placeholder=""  />

            <br>
                file: <input type="file" id="files"  name="file" /> 
            <br>

            <input type="submit" value="submit">
        </form>

如何使用零件获取multipart / form-data的参数

1 个答案: