我需要从Android应用程序将多个图像上传到PHP服务器。多重意味着用户只能上传1张图片，或2张，或3张，甚至5张图片。
我需要用参数路径[numberOfImage]将图像发送到服务器，如下所示：
reqEntity.addPart("path[0]", bab);
有了这个代码，我可以上传一个图像到服务器。
File file1 = new File(selectedPath1);
Bitmap bitmap = decodeFile(file1);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
bitmap.compress(CompressFormat.JPEG, 75, bos);
byte[] data = bos.toByteArray();
try
{
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost(urlString);
ByteArrayBody bab = new ByteArrayBody(data, "test.jpg");
MultipartEntity reqEntity = new MultipartEntity();
reqEntity.addPart("path[0]", bab);
post.setEntity(reqEntity);
HttpResponse response = client.execute(post);
resEntity = response.getEntity();
response_str = EntityUtils.toString(resEntity);
}
您可以简单地将其放入循环中。假设您有一个文件的array（在本例中称为myFiles），您只需要执行这样的操作。请记住，每次迭代都要创建一个新的对象，这一点很重要，因此通过这种方式，您可以确保始终发送一个不同且独立的对象。
int i = 0;
String[] myFiles = { "C:'path1.jpg", "C:'path2.jpg" };
for (String selectedPath : myFiles) {
File file = new File(selectedPath);
Bitmap bitmap = decodeFile(file);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
bitmap.compress(CompressFormat.JPEG, 75, bos);
byte[] data = bos.toByteArray();
try {
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost(urlString);
ByteArrayBody bab = new ByteArrayBody(data, "test.jpg");
MultipartEntity reqEntity = new MultipartEntity();
reqEntity.addPart("path[" + String.valueOf(i++) + "]", bab);
post.setEntity(reqEntity);
HttpResponse response = client.execute(post);
resEntity = response.getEntity();
response_str = EntityUtils.toString(resEntity);
}
catch (...) { ... }
}