将图像发布到Tumblr API

所以我正在编写一个小型Java应用程序，使用他们提供的API将图像目录转储到用户的tumblr博客中： http ： //www.tumblr.com/docs/en/api

我已经发布明文了，但现在我需要找出如何在POST中发送图像文件。 我的代码目前正在返回403禁止错误，我尝试的其他所有内容都给我一个错误的请求错误。 如果可以的话，我宁愿不必使用外部库。 这是我的ImagePost类：

import java.io.*; import java.net.*; public class ImagePost { String data = null; String enc = "UTF-8"; String type; File img; byte[] bytes; FileReader reader; ByteArrayOutputStream bytesOut; public ImagePost(String imgPath, String caption, String tags) throws IOException { //Construct data type = "photo"; img = new File(imgPath); bytes = fileToByteArray(img); bytesOut = new ByteArrayOutputStream(); data = URLEncoder.encode("email", enc) + "=" + URLEncoder.encode(Main.getEmail(), enc); data += "&" + URLEncoder.encode("password", enc) + "=" + URLEncoder.encode(Main.getPassword(), enc); data += "&" + URLEncoder.encode("type", enc) + "=" + URLEncoder.encode(type, enc); data += "&" + URLEncoder.encode("data", enc) + "=" + URLEncoder.encode(bytes.toString(), enc); data += "&" + URLEncoder.encode("caption", enc) + "=" + URLEncoder.encode(caption, enc); data += "&" + URLEncoder.encode("generator", "UTF-8") + "=" + URLEncoder.encode(Main.getVersion(), "UTF-8"); data += "&" + URLEncoder.encode("tags", "UTF-8") + "=" + URLEncoder.encode(tags, "UTF-8"); } public byte[] fileToByteArray(File img) throws IOException { long length = img.length(); InputStream in = new FileInputStream(img); byte[] byteArray; if (length > Integer.MAX_VALUE) { System.out.println("File too large!"); return null; } byteArray = new byte[(int) length]; int offset = 0; int numRead = 0; while (offset = 0) { offset += numRead; } in.close(); return byteArray; } public void send() throws IOException { // Set up connection URL tumblrWrite = new URL("http://www.tumblr.com/api/write"); HttpURLConnection http = (HttpURLConnection) tumblrWrite.openConnection(); http.setDoOutput(true); http.setRequestMethod("POST"); http.setRequestProperty("Content-Encoding", "application/x-www-form-urlencoded"); http.setRequestProperty("Content-Type", "image/png"); OutputStreamWriter out = new OutputStreamWriter(http.getOutputStream()); // Send data http.connect(); out.write(data); out.flush(); System.out.println(http.getResponseCode()); System.out.println(http.getResponseMessage()); out.close(); } } 

Answer 1

您需要将post设置为具有以下内容类型：

 multipart/form-data 

Answer 2

我建议你使用像Jumblr这样的外部库，它允许你使用java轻松地使用tumblr API。 发布图像的示例

 PhotoPost post = client.newPost("blog name", PhotoPost.class); post.setCaption("caption"); post.setSource("image url"); post.save();