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我正在使用库Sharepoint-Java-API从 Sharepoint 下载文件。
我能够下载文件，但得到了字符串格式，使用org.apache.commons.io.IOUtilsas进行转换

public static String get(Pair<String, String> token, String url) {
    CloseableHttpClient httpClient = HttpClients.createDefault();
    try {
        HttpGet getRequest = new HttpGet(url);
        getRequest.addHeader("Cookie", token.getLeft() + ";" + token.getRight());
        getRequest.addHeader("accept", "application/json;odata=verbose");
        HttpResponse response = httpClient.execute(getRequest);
        if (response.getStatusLine().getStatusCode() == 200) {
            return IOUtils.toString(response.getEntity().getContent(), "utf-8");
        } else {
            System.err.println("Failed : HTTP error code : " + response.getStatusLine().getStatusCode() + ", " + url);
            return null;
        }
    } catch (ClientProtocolException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            httpClient.close();
        } catch (IOException ex) {
            Logger.getLogger(SPOnlineMFT.class).error(ex);
        }
    }
    return null;
}

现在我正在尝试将其转换为InputStream并将其保存在本地文件系统中以进行测试

呼叫者：-

String content = SPOnline.get(token, domain, url );
if (content != null) {
    File targetFile = new File("D:\\Rivian\\SharePoint\\TempDownload/"+fileName);
//  InputStream stream = new ByteArrayInputStream(content.getBytes("utf-8"));
    InputStream stream = IOUtils.toInputStream(content, "utf-8");
    Files.copy(stream, targetFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
    System.out.println("File Downloaded")
}

但我无法读取/打开文件，例如 MS excel 文件。打开文件时收到消息为损坏的文件。

4

1 回答 1

0

只需将字节数组直接写入文件，无需将其转换为 utf-8 字符串。

import java.nio.file.Files;
import java.nio.file.Path;

Path file = Path.of("D:\\SharePoint\\TempDownload/"+fileName);
Files.write(file, response.getEntity().getContent()));
于 2021-02-24T13:28:32.370 回答