Question

我需要使用post方法将图像文件上传到http服务器。我的代码在这里

try {
HttpClient httpclient = new DefaultHttpClient();

HttpPost httppost = new HttpPost(url);

InputStreamEntity reqEntity = new InputStreamEntity(
        new FileInputStream(file), -1);
reqEntity.setContentType("binary/octet-stream");

httppost.setEntity(reqEntity);
HttpResponse response = httpclient.execute(httppost);
//Do something with response...

} catch (Exception e) {
// show error
}

它不起作用。以正确的方式提出我的意见。

注意：服务器是IIS服务器。

Answer 1

您可以尝试reqEntity.setChunked(true);如果需要，可以发送多个部分

为此你的代码应该是

InputStreamEntity reqEntity = new InputStreamEntity(
        new FileInputStream(file), -1);
reqEntity.setContentType("binary/octet-stream");
reqEntity.setChunked(true);
httppost.setEntity(reqEntity);

但如果您的文件大小，那么您应该使用

HttpClient httpclient = new DefaultHttpClient();

HttpPost httppost = new HttpPost(url);

File f = new File(file);
FileInputStream fileInputStream = new FileInputStream(f);
InputStreamEntity reqEntity = new InputStreamEntity(fileInputStream, f.length());

httppost.setEntity(reqEntity);
reqEntity.setContentType("binary/octet-stream");
HttpResponse response = httpclient.execute(httppost);
HttpEntity responseEntity = response.getEntity();

if (responseEntity != null) {
  responseEntity.consumeContent();
}

httpclient.getConnectionManager().shutdown();

Answer 2

前几天我也被困在这一点上，无法正常工作。我正在使用WCF休息服务并花费15-20天。最后我将我的WCF更改为webservice，现在我可以非常轻松地上传图像和调用服务。我使用SOAP对象将其称为

private String RegisterUser(String[] parameter, String image) {
        SoapObject request = new SoapObject(WSDL_TARGET_NAMESPACE,
                OPERATION_NAME);

        request.addProperty("param1", parameter[0].toString());
        request.addProperty("param2", parameter[1].toString());
        request.addProperty("profilepic", image);
        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
                SoapEnvelope.VER11);
        envelope.dotNet = true;
        envelope.setOutputSoapObject(request);
        HttpTransportSE httpTransport = new HttpTransportSE(SOAP_ADDRESS);
        Object response = null;

        try {
            httpTransport.call(SOAP_ACTION + OPERATION_NAME, envelope);
            response = envelope.getResponse();
        } catch (Exception exception) {
            response = exception.toString();
        }
        return response.toString();
    }

我已将Image转换为字符串，然后调用webservice，一切都非常流畅。

如果愿意使用webservice，你可以试试。希望这会对你有所帮助

的问候，
Sourabh

使用android中的post方法将图像文件上传到Http Server

2 个答案: