HttpPost写正文以及请求参数

Question

我正在使用 Apache 的 HttpPost。我正在尝试将文件上传到网络服务器，结果如下：

POST site/upload?uploadType=chunked&requestId={requestId} HTTP/1.1

Host:
Accept: application/xml

Authtoken:
Request Parameters

requestId The unique identifier for the current upload session.

Request Headers

Host The host name of the web server.

Accept The format of the response. Valid values are: application/xml or application/json.

Authtoken The authentication token received after successfully logging on.

FileEOF Specifies whether the end of file has reached with the current file chunk. Allowed values are 0 and 1. End of file means value 1.

Request Body

Include the contents of the file chunk in bytes.

我得到的是这样的：

HttpPost post = new HttpPost(url);
            post.setHeader("Authtoken", params.get("token"));
            String fileName = file.getName();
            long offset = Long.parseLong(chunkOffset);
            //...
            post.setHeader("FileEOF", eof);
            /*List<NameValuePair> postParameters = new ArrayList<NameValuePair>();
            postParameters.add(new BasicNameValuePair("requestId", requestId));
            post.setEntity(new UrlEncodedFormEntity(postParameters));*/

            fileInputStream.skip(offset);
            fileInputStream.read(bytes);
            post.setEntity(new ByteArrayEntity(bytes));

我在哪里写 HttpPost 的参数？

Answer 1

处理文件上传时，您将不得不使用 MultipartEntity 和 FileBody。

示例：

MultipartEntity entity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
entity.addPart("someparameter1", new StringBody("Woody"));
entity.addPart("someparameter2", new StringBody("Woodpecker"));
File fileToSend = new File(filePath);
FileBody fileBody = new FileBody(fileToSend, "application/octet-stream");
entity.addPart("upload_file", fileBody);

httpPost.setEntity(entity);

使用 MultipartEntityBuilder - 尝试以下操作：

MultipartEntityBuilder builder = MultipartEntityBuilder.create();        
builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);

final File aFile = new File(fileName);
FileBody fileBody = new FileBody(file);

builder.addPart("file", fileBody);  
builder.addTextBody("requestId", requestId);
final HttpEntity httpEntity = builder.build();

HttpPost写正文以及请求参数

HttpPost write body as well as the request parameters

java

http-post

apache-httpcomponents