Wicket 1.5中的WebResponse.getOutputStream()?

时间:2011-11-17 06:41:54

标签: wicket wicket-1.5

此代码在1.4中适用于我:

WebResponse response = (org.apache.wicket.request.http.WebResponse) getResponse();
response.setAttachmentHeader("List.xls");
response.setContentType("application/ms-excel");
OutputStream out = response.getOutputStream();
WritableWorkbook workbook = Workbook.createWorkbook(out);
.....
.....
workbook.write();
workbook.close();

我在1.5中看到没有WebResponse.getOutputStream() - 但它没有被标记为已弃用?

我查看了1.5迁移指南,但我看不到任何明显的解决方案。

有人可以告诉我在1.5中我应该怎么做。

2 个答案:

答案 0 :(得分:1)

这已于昨天修复。将成为Wicket 1.5.4的一部分。 但对于此用例,您应该使用资源。请参阅ResourceLink的实现。

答案 1 :(得分:1)

您可以将Response包裹在OutputStream

public final class ResponseOutputStream extends OutputStream {
    private final Response response;
    private final byte[] singleByteBuffer = new byte[1];
    public ResponseOutputStream(Response response) {
        this.response = response;
    }
    @Override
    public void write(int b) throws IOException {
        singleByteBuffer[0] = (byte) b;
        write(singleByteBuffer);
    }
    @Override
    public void write(byte[] b) throws IOException {
        response.write(b);
    }
    @Override
    public void write(byte[] b, int off, int len) throws IOException {
        if (off == 0 && len == b.length) {
            this.write(b);
        } else {
            super.write(b, off, len);
        }
    }
}