豆瓣开放平台api的坑

最近在接豆瓣的分享，期间碰到了较多的陷阱，一路磕磕碰碰，还好最终都解决了。下面总结下期间耗费了我一天的一个巨坑。。。

第一次使用在使用豆瓣广播api（shuo/v2/statuses/）即碰壁，查找原因后发现最后的“/”必不可少。

那么我们继续：

MultiThreadedHttpConnectionManager httpConnectionManager = new MultiThreadedHttpConnectionManager();
HttpClient client = new HttpClient(httpConnectionManager);
PostMethod postMethod = new PostMethod("https://api.douban.com/shuo/v2/statuses/");
Part[] parts = new Part[2];
parts[0] = new StringPart("source","XXXXXXXXX", "UTF-8");
parts[0] = new StringPart("text", "ttttt", "UTF-8");

File file = new File("D:\\upload.jpg");
FilePart filePart = new FilePart("image", file.getName(), file,new MimetypesFileTypeMap().getContentType(file), "UTF-8");
parts[1] = filePart;

MultipartRequestEntity requestEntity = new MultipartRequestEntity(parts, postMethod.getParams());
postMethod.setRequestEntity(requestEntity);
postMethod.setRequestHeader("Authorization", "Bearer XXXXXX");
int statusCode = client.executeMethod(postMethod);

String response = new String(postMethod.getResponseBody(), "UTF-8");
System.out.println("response--->" + response);
System.out.println("statusCode--->" + statusCode);

MultiThreadedHttpConnectionManager httpConnectionManager = new MultiThreadedHttpConnectionManager();
HttpClient client = new HttpClient(httpConnectionManager); 
PostMethod postMethod = new PostMethod("https://api.douban.com/shuo/v2/statuses/");
Part[] parts = new Part[2];
parts[0] = new StringPart("source","XXXXXXXXX", "UTF-8");
parts[0] = new StringPart("text", "ttttt", "UTF-8");
			
File file = new File("D:\\upload.jpg");
FilePart filePart = new FilePart("image", file.getName(), file,new MimetypesFileTypeMap().getContentType(file), "UTF-8");
parts[1] = filePart;

MultipartRequestEntity requestEntity = new MultipartRequestEntity(parts, postMethod.getParams());
postMethod.setRequestEntity(requestEntity);
postMethod.setRequestHeader("Authorization", "Bearer XXXXXX");
int statusCode = client.executeMethod(postMethod);

String response = new String(postMethod.getResponseBody(), "UTF-8");
System.out.println("response--->" + response);
System.out.println("statusCode--->" + statusCode);

我用的是httpclient3.1，返回结果为{"msg":"不支持的图片格式","r":0}

怎么办？检查多次代码，尝试调整编码多次后，依旧，宣告失败，上豆瓣api小组上搜索，满眼尽是提问的，官方的回复也很简单:"我们的api没问题，请检查参数Content-Type"。

好吧我怕你了，既然你说你们的api没问题，我拿你们提供的sdk参考下总可以吧。于是 下载sdk，我x，老版本的。attachments方式的，不支持image参数。

灵光一显，没准豆瓣自己官方的android里可以用一定的借鉴意义，反编译之，上 应用汇下载豆瓣广播，使用 apk2java解压，jdgui反编译之。
发现android客户端里使用的是httpclient4。参数设置可我也没什么不同。