android - 上传图片到服务器使用base64编码android

Question

我正在尝试将图像字符串上传到服务器，但每次我上传时它都会显示一条消息，没有从您这边收到任何信息(表示空字符串)。我还在编码后检查了图像字符串，但仍然无法上传图像字符串。你能帮帮我吗？

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

import android.util.Log;

public class UploadImages {
     String _responseMain;
    private int serverResponseCode;

    public String upLoad2Server(String encode) {


        HttpURLConnection conn = null;


        DataOutputStream dos = null;
        String lineEnd = "\r\n";
        String twoHyphens = "--";
        String boundary = "*****";
        int bytesRead, bytesAvailable, bufferSize;
        byte[] buffer;
        int maxBufferSize = 1 * 1024 * 1024;



        try {
             Log.d("encodedImage",  encode);
            URL url = new URL(ConfigImages.UPLOAD_URL);
            conn = (HttpURLConnection) url.openConnection();
            conn.setDoInput(true);
            conn.setDoOutput(true);
            conn.setUseCaches(false);
            conn.setChunkedStreamingMode(1024);



            conn.setRequestProperty("Connection", "Keep-Alive");
            conn.setRequestProperty("ENCTYPE", "multipart/form-data");
            conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
            conn.setRequestMethod("POST");
            conn.connect();
            conn.connect();



            OutputStream outputStream = conn.getOutputStream();
            BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(outputStream, "UTF-8"));
            writer.write(encode);

            writer.close();
            outputStream.close();

            //Read
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));

            String line = null;
            StringBuilder sb = new StringBuilder();

            while ((line = bufferedReader.readLine()) != null) {
                System.out.println("Uploading............");
                sb.append(line);
            }

            bufferedReader.close();
             _responseMain = sb.toString();
            System.out.println("Response of Image Upload : " +_responseMain);


        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return _responseMain ;





    }
}

Answer 1

您没有发送像这样的参数名称

 {"image_code":"AAARoABQAAAAEAAAEe"}