如何上传图片到服务器 [英] how to upload the image into server

问题描述

我试图将图像上传到服务器了两天，但我无法发布.the编码编制的形象，成功地运行，但IMAG没有写入到服务器。

这是我的编码：

 进口java.io.BufferedInputStream中;
进口的java.io.File;
进口java.io.FileInputStream中;
进口java.io.FileOutputStream中;
进口java.io.IOException异常;
进口的java.io.InputStream;
进口java.io.OutputStream中;
进口java.net.HttpURLConnection中;
进口java.net.MalformedURLException;
进口的java.net.URL;

进口android.app.Activity;
进口android.content.Context;
进口android.graphics.Bitmap;
进口android.graphics.BitmapFactory;
进口android.os.Bundle;
进口android.widget.Toast;

公共类SDE延伸活动{
    / **第一次创建活动时调用。 * /
    @覆盖
    公共无效的onCreate（包savedInstanceState）{
        super.onCreate（savedInstanceState）;
        的setContentView（R.layout.main）;
        loadtoUrl（HTTP：//
）;
    }

    私人无效loadtoUrl（字符串字符串）{

        // TODO自动生成方法存根
         尝试 {
             字符串pathToOurFile =/sdcard/tamil.PNG;
             的FileInputStream的FileInputStream =新的FileInputStream（新文件（pathToOurFile））;
             的BufferedInputStream双=新的BufferedInputStream（的FileInputStream，3000）;
             byte []的BT =新的字节[bis.available（）];
            HttpURLConnection的连接=（HttpURLConnection类）新的URL（字符串）.openConnection（）;
             connection.setDoOutput（真正的）;
             connection.setRequestMethod（POST）;
             connection.connect（）;
            FileOutputStream中输入=（FileOutputStream中）connection.getOutputStream（）;
            input.write（BT）;
        }赶上（MalformedURLException异常E）{
            上下文的背景下= NULL;
            INT持续时间= 0;
            Toast.makeText（背景下，埃罗以书面形式，持续时间）;
            // TODO自动生成的catch块
            e.printStackTrace（）;
        }赶上（IOException异常E）{
            // TODO自动生成的catch块
            e.printStackTrace（）;
        }

    }
}
 

解决方案

在这里是一个很好的文章，的 http://blog.sptechnolab.com/2011/03/09/android/android-upload-image-to-server/ 。它包含了将上传的图片，并在服务器端把它写的一个例子。它的工作原理。

i tried to upload the image to the server for two days but i could not post the image .the coding is compiled and run sucessfully but the imag is not write into the server.

this is my coding:

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.widget.Toast;

public class sde extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        loadtoUrl("http://
");
    }

    private void loadtoUrl(String string) {

        // TODO Auto-generated method stub
         try {
             String pathToOurFile = "/sdcard/tamil.PNG";
             FileInputStream fileInputStream = new FileInputStream(new File(pathToOurFile) );
             BufferedInputStream bis = new BufferedInputStream(fileInputStream,3000);
             byte[] bt=new byte[bis.available()];
            HttpURLConnection connection = (HttpURLConnection)new URL(string).openConnection();
             connection.setDoOutput(true);
             connection.setRequestMethod("POST");
             connection.connect();
            FileOutputStream input = (FileOutputStream) connection.getOutputStream();
            input.write(bt);
        } catch (MalformedURLException e) {
            Context context = null;
            int duration = 0;
            Toast.makeText(context, "erro in writing", duration);
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }
}

解决方案

here is a nice article, http://blog.sptechnolab.com/2011/03/09/android/android-upload-image-to-server/. It contains an example that will upload an image and write it at server side. It works.

这篇关于如何上传图片到服务器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！