android的自带的httpClient 怎么上传文件

Posted 2023-03-18

参考技术A 发送post请求即可 参考技术B 这里只贴出代码，可根据实际情况自行修改。

[java]
package com.lxb.uploadwithprogress.http;

import java.io.File;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.protocol.HttpContext;
import org.apache.http.util.EntityUtils;

import android.app.ProgressDialog;
import android.content.Context;
import android.os.AsyncTask;

import com.lxb.uploadwithprogress.http.CustomMultipartEntity.ProgressListener;

public class HttpMultipartPost extends AsyncTask


private Context context;
private String filePath;
private ProgressDialog pd;
private long totalSize;

public HttpMultipartPost(Context context, String filePath)
this.context = context;
this.filePath = filePath;


@Override
protected void onPreExecute()
pd = new ProgressDialog(context);
pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
pd.setMessage(Uploading Picture...);
pd.setCancelable(false);
pd.show();


@Override
protected String doInBackground(String... params)
String serverResponse = null;

HttpClient httpClient = new DefaultHttpClient();
HttpContext httpContext = new BasicHttpContext();
HttpPost httpPost = new HttpPost(上传URL， 如：http://www.xx.com/upload.php);

try
CustomMultipartEntity multipartContent = new CustomMultipartEntity(
new ProgressListener()
@Override
public void transferred(long num)
publishProgress((int) ((num / (float) totalSize) * 100));

);

// We use FileBody to transfer an image
multipartContent.addPart(data, new FileBody(new File(
filePath)));
totalSize = multipartContent.getContentLength();

// Send it
httpPost.setEntity(multipartContent);
HttpResponse response = httpClient.execute(httpPost, httpContext);
serverResponse = EntityUtils.toString(response.getEntity());

catch (Exception e)
e.printStackTrace();


return serverResponse;


@Override
protected void onProgressUpdate(Integer... progress)
pd.setProgress((int) (progress[0]));


@Override
protected void onPostExecute(String result)
System.out.println(result: + result);
pd.dismiss();


@Override
protected void onCancelled()
System.out.println(cancle);



[java]
package com.lxb.uploadwithprogress.http;

import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.charset.Charset;

import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntity;

public class CustomMultipartEntity extends MultipartEntity

private final ProgressListener listener;

public CustomMultipartEntity(final ProgressListener listener)
super();
this.listener = listener;


public CustomMultipartEntity(final HttpMultipartMode mode,
final ProgressListener listener)
super(mode);
this.listener = listener;


public CustomMultipartEntity(HttpMultipartMode mode, final String boundary,
final Charset charset, final ProgressListener listener)
super(mode, boundary, charset);
this.listener = listener;


@Override
public void writeTo(OutputStream outstream) throws IOException
super.writeTo(new CountingOutputStream(outstream, this.listener));


public static interface ProgressListener
void transferred(long num);


public static class CountingOutputStream extends FilterOutputStream

private final ProgressListener listener;
private long transferred;

public CountingOutputStream(final OutputStream out,
final ProgressListener listener)
super(out);
this.listener = listener;
this.transferred = 0;


public void write(byte[] b, int off, int len) throws IOException
out.write(b, off, len);
this.transferred += len;
this.listener.transferred(this.transferred);


public void write(int b) throws IOException
out.write(b);
this.transferred++;
this.listener.transferred(this.transferred);




上面为两个主要的类，下面放一个调用的Activity本回答被提问者和网友采纳

android和httpClient

初，谷歌安卓新出，库中自带HttpClient 4.0测试预览版。为与安卓保持API同步，HTTPClient不敢大动大改。后来，HTTPClient 4.0渐趋成熟，apache欲使android跟进更新对应的库，android拒绝之。然旧库bug丛生，瑕疵遍地。故今apache新出一个HTTPClient for android。

链接：http://hc.apache.org/httpcomponents-client-4.3.x/android-port.html