Java Alfresco-如何在使用RestTemplate进行post时添加/设置文件内容

我正在尝试使用以下方法将文件上载到DocLibrary文件夹：

private static void postTheDocument() {
        final String restENDPoint = "http://servername:8080/alfresco/api/-default-/public/alfresco/versions/1/nodes/48eea6b2-fe9b-4cd2-8270-5caa35d7e8dc/children";
        RestTemplate restTemplate = new RestTemplate();
        HttpHeaders headers = new HttpHeaders();
        headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
        headers.setBasicAuth("admin", "admin");
        String requestJson = "{\"name\": \"TestName123s.doc\",\"nodeType\": \"hr:HR_Type\",\"properties\":{\"cm:title\":\"New Test title123\",\"hr:emp_no\":\"123456\",\"hr:lname\":\"Last_Name1\",\"hr:fname\":\"First_Name1\"}}";
        HttpEntity<String> entity = new HttpEntity<String>(requestJson, headers);
        HttpEntity<String> response = restTemplate.exchange(restENDPoint, HttpMethod.POST, entity,
                String.class);
        System.out.println(response.getBody().toString());
    }

使用postTheDocument（）方法创建空文档。但当我尝试以下请求时：

String requestJson = "{\"filedata\": \"@Z:/05test/YYYYest11qq890.pdf\",\"name\": \"TestName123s.doc\",\"nodeType\": \"hr:HR_Type\",\"properties\":{\"cm:title\":\"New Test title123\",\"hr:emp_no\":\"123456\",\"hr:lname\":\"Last_Name1\",\"hr:fname\":\"First_Name1\"}}";

我得到以下例外情况：

 Exception in thread "main" org.springframework.web.client.HttpClientErrorException$BadRequest: 400 : [{"error":{"errorKey":"Could not read content from HTTP request body: Unrecognized field \"filedata\" (class org.alfresco.rest.api.model.Node), not marked as ignorable (36 known properties: \"modifiedB... (1969 bytes)]
    

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我在这里做错了什么或者我缺少了什么？

我认为常用的方法是在露天创建节点，然后将文件以多部分上传的方式发送到节点http://localhost:8080/alfresco/api/-默认-/public/alfresco/versions/1/nodes/-root-/children”（有关多部分上载的示例，请参阅：）

要从创建的节点获取节点id，请执行以下操作：

    if (response != null) {
        try {
            JSONObject result;
            result = new JSONObject(response.getBody());
            System.out.println(result.toString());
              
            JSONObject oj = result.getJSONObject("entry");
            String id = (String) oj.get("id");

            System.out.println(id);
            fileupload(file_upload,id);

        } catch (JSONException e2) {
            e2.printStackTrace();
        }

    }        

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发布对我有效的解决方案。它不是基于RestTemplate的，但可以工作。这是我从Alfresco支持人员那里得到的解决方案，效果非常好（请参阅内联注释）：

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您是否检查了您在Java代码中传递的数据负载是否能够与curl一起工作？我经常使用Python请求模块来发送HTTP客户机命令，并且有一个模块将打印出与curl完全相同的代码。Java可能也有类似的功能，但我不确定。我尝试了所有这些功能，但没有任何效果。我联系了Alfresco支持部门，他们提供了ApacheHTTP客户端方法，效果很好。也就是说，使用RESTAPI，我能够一次性成功地上传文件和自定义元数据，而不是先创建节点，然后再加载文件（内容）。谢谢你的帮助，柯蒂斯。将重试并向您更新此信息。

    if (response != null) {
        try {
            JSONObject result;
            result = new JSONObject(response.getBody());
            System.out.println(result.toString());
              
            JSONObject oj = result.getJSONObject("entry");
            String id = (String) oj.get("id");

            System.out.println(id);
            fileupload(file_upload,id);

        } catch (JSONException e2) {
            e2.printStackTrace();
        }

    }        

private static void postFileAndMetadataToAlfresco() throws IOException, AuthenticationException {

        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpPost httpPost = new HttpPost("http://someservername:8080/alfresco/api/-default-/public/alfresco/versions/1/nodes/12341234-1234-1234-1234-123412341234/children");
        UsernamePasswordCredentials creds = new UsernamePasswordCredentials ("admin","adminpswd");
        httpPost.addHeader (new BasicScheme().authenticate(creds,httpPost, null));

        File payload = new File ("/path/to/my/file.pdf");

        MultipartEntityBuilder builder = MultipartEntityBuilder.create(); // Entity builder

        builder.addPart("filedata", new FileBody(payload)); // this is where I was struggling
        builder.addTextBody ("name", "thenamegoeshere");
        builder.addTextBody ("foo", "foo");
        builder.addTextBody ("bar", "bar");
        builder.addTextBody ("description", "descriptiongoeshere");

        builder.addTextBody ("overwrite", "true");

        HttpEntity entity = builder.build();

        httpPost.setHeader("Accept","application/json");
        httpPost.setEntity(entity);

        CloseableHttpResponse response = httpClient.execute(httpPost); // Post the request and get response

        System.out.println(response.toString()); // Response print to console

        httpClient.close();  // close the client
}