使用Android通过JSON上传照片到服务器

Z时代
2024-01-10
分类：问答

我正尝试将照片上传到我的服务器。但是我对如何以JSON提交多部分请求感到困惑。这是我迄今为止的代码。使用Android通过JSON上传照片到服务器

// Set up HTTP client. 
HttpClient client = DefaultHttpClient(); 
// Multi-part content body. 
MultipartEntity mpEntity = new MultipartEntity(); 
ContentBody content = new FileBody(source, "image/jpeg"); 
mpEntity.addPart("user[photo]", content); 
// Put method. 
HttpPut method = new HttpPut(url); 
method.setHeader("Accept", "application/json"); 
method.setHeader("Content-type", "application/json"); 
method.setHeader("Accept-Encoding", "gzip"); 
method.setEntity(mpEntity); 
response = client.execute(method); 
// Result. 
HttpEntity responseEntity = response.getEntity();

我从我的Rails服务器得到的错误是：

所有的

Error occurred while parsing request parameters. 
Contents: [garbled data]

回答：

这适用于Rails服务器。

// Target URL. 
// Add '.json' to end of the URL. This will make Rails 
// accept the request as JSON but yet allow the multi-part content 
// encoding below. 
String url = "http://blahblah.com/users/123.json" 
// Set up HTTP client. 
HttpClient client = DefaultHttpClient(); 
// Multi-part content body. 
MultipartEntity mpEntity = new MultipartEntity(); 
ContentBody content = new FileBody(source, "image/jpeg"); 
mpEntity.addPart("user[photo]", content); 
// Put method. 
HttpPut method = new HttpPut(url); 
method.setEntity(mpEntity); 
response = client.execute(method); 
// Result. 
HttpEntity responseEntity = response.getEntity();