Android网络编程之使用HttpClient批量上传文件(二)AsyncTask+HttpClient并实现上传进度监听
2016-10-05 12:55
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请尊重他人的劳动成果,转载请注明出处:
运行效果图:
我曾在《Android网络编程之使用HttpClient批量上传文件》一文中介绍过如何通过HttpClient实现多文件上传和服务器的接收。在上一篇主要使用Handler+HttpClient的方式实现文件上传。这一篇将介绍使用AsyncTask+HttpClient实现文件上传并监听上传进度。
监控进度实现:
首先定义监听器接口。如下所示:
[java]
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/**
* 进度监听器接口
*/
public interface ProgressListener {
public void transferred(longtransferedBytes);
}
实现监控进度的关键部分就在于记录已传输字节数,所以我们需重载FilterOutputStream,重写其中的关键方法,实现进度监听的功能,如下所示,本例中首先重载的是HttpEntityWrapper,顾名思义,就是将需发送的HttpEntity打包,以便计算总字节数,代码如下:
[java]
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package com.jph.ufh.utils;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import org.apache.http.HttpEntity;
import org.apache.http.entity.HttpEntityWrapper;
/**
* ProgressOutHttpEntity:输出流(OutputStream)时记录已发送字节数
* @author JPH
* Date:2014.11.03
*/
public class ProgressOutHttpEntity extends HttpEntityWrapper {
/**进度监听对象**/
private final ProgressListener listener;
public ProgressOutHttpEntity(final HttpEntity entity,final ProgressListener listener) {
super(entity);
this.listener = listener;
}
public static class CountingOutputStream extends FilterOutputStream {
private final ProgressListener listener;
private long transferred;
CountingOutputStream(final OutputStream out,
final ProgressListener listener) {
super(out);
this.listener = listener;
this.transferred = 0;
}
@Override
public void write(final byte[] b, final int off, final int len)
throws IOException {
out.write(b, off, len);
this.transferred += len;
this.listener.transferred(this.transferred);
}
@Override
public void write(final int b) throws IOException {
out.write(b);
this.transferred++;
this.listener.transferred(this.transferred);
}
}
@Override
public void writeTo(final OutputStream out) throws IOException {
this.wrappedEntity.writeTo(out instanceof CountingOutputStream ? out
: new CountingOutputStream(out, this.listener));
}
/**
* 进度监听器接口
*/
public interface ProgressListener {
public void transferred(long transferedBytes);
}
}
最后就是使用上述实现的类和Httpclient进行上传并显示进度的功能,非常简单,代码如下,使用AsyncTask异步上传。
[java]
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/**
* 异步AsyncTask+HttpClient上传文件,支持多文件上传,并显示上传进度
* @author JPH
* Date:2014.10.09
* last modified 2014.11.03
*/
public class UploadUtilsAsync extends AsyncTask<String, Integer, String>{
/**服务器路径**/
private String url;
/**上传的参数**/
private Map<String,String>paramMap;
/**要上传的文件**/
private ArrayList<File>files;
private long totalSize;
private Context context;
private ProgressDialog progressDialog;
public UploadUtilsAsync(Context context,String url,Map<String, String>paramMap,ArrayList<File>files) {
this.context=context;
this.url=url;
this.paramMap=paramMap;
this.files=files;
}
@Override
protected void onPreExecute() {//执行前的初始化
// TODO Auto-generated method stub
progressDialog=new ProgressDialog(context);
progressDialog.setTitle("请稍等...");
progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressDialog.setCancelable(true);
progressDialog.show();
super.onPreExecute();
}
@Override
protected String doInBackground(String... params) {//执行任务
// TODO Auto-generated method stub
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
builder.setCharset(Charset.forName(HTTP.UTF_8));//设置请求的编码格式
builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);//设置浏览器兼容模式
int count=0;
for (File file:files) {
// FileBody fileBody = new FileBody(file);//把文件转换成流对象FileBody
// builder.addPart("file"+count, fileBody);
builder.addBinaryBody("file"+count, file);
count++;
}
builder.addTextBody("method", paramMap.get("method"));//设置请求参数
builder.addTextBody("fileTypes", paramMap.get("fileTypes"));//设置请求参数
HttpEntity entity = builder.build();// 生成 HTTP POST 实体
totalSize = entity.getContentLength();//获取上传文件的大小
ProgressOutHttpEntity progressHttpEntity = new ProgressOutHttpEntity(
entity, new ProgressListener() {
@Override
public void transferred(long transferedBytes) {
publishProgress((int) (100 * transferedBytes / totalSize));//更新进度
}
});
return uploadFile(url, progressHttpEntity);
}
@Override
protected void onProgressUpdate(Integer... values) {//执行进度
// TODO Auto-generated method stub
Log.i("info", "values:"+values[0]);
progressDialog.setProgress((int)values[0]);//更新进度条
super.onProgressUpdate(values);
}
@Override
protected void onPostExecute(String result) {//执行结果
// TODO Auto-generated method stub
Log.i("info", result);
Toast.makeText(context, result, Toast.LENGTH_LONG).show();
progressDialog.dismiss();
super.onPostExecute(result);
}
/**
* 向服务器上传文件
* @param url
* @param entity
* @return
*/
public String uploadFile(String url, ProgressOutHttpEntity entity) {
HttpClient httpClient=new DefaultHttpClient();// 开启一个客户端 HTTP 请求
httpClient.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
httpClient.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 5000);// 设置连接超时时间
HttpPost httpPost = new HttpPost(url);//创建 HTTP POST 请求
httpPost.setEntity(entity);
try {
HttpResponse httpResponse = httpClient.execute(httpPost);
if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
return "文件上传成功";
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (ConnectTimeoutException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (httpClient != null && httpClient.getConnectionManager() != null) {
httpClient.getConnectionManager().shutdown();
}
}
return "文件上传失败";
}
}
关于服务器端如何接收:可以参考:《Android网络编程之使用HttpClient批量上传文件》,我在里面已经介绍的很清楚了。
如果你觉得这篇博文对你有帮助的话,请为这篇博文点个赞吧!也可以关注fengyuzhengfan的博客,收看更多精彩!http://blog.csdn.net/fengyuzhengfan/
请尊重他人的劳动成果,转载请注明出处:
Android网络编程之使用HttpClient批量上传文件(二)AsyncTask+HttpClient并实现上传进度监听
运行效果图:我曾在《Android网络编程之使用HttpClient批量上传文件》一文中介绍过如何通过HttpClient实现多文件上传和服务器的接收。在上一篇主要使用Handler+HttpClient的方式实现文件上传。这一篇将介绍使用AsyncTask+HttpClient实现文件上传并监听上传进度。
监控进度实现:
首先定义监听器接口。如下所示:
[java]
view plain
copy
print?
/**
* 进度监听器接口
*/
public interface ProgressListener {
public void transferred(longtransferedBytes);
}
/** * 进度监听器接口 */ public interface ProgressListener { public void transferred(longtransferedBytes); }
实现监控进度的关键部分就在于记录已传输字节数,所以我们需重载FilterOutputStream,重写其中的关键方法,实现进度监听的功能,如下所示,本例中首先重载的是HttpEntityWrapper,顾名思义,就是将需发送的HttpEntity打包,以便计算总字节数,代码如下:
[java]
view plain
copy
print?
package com.jph.ufh.utils;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import org.apache.http.HttpEntity;
import org.apache.http.entity.HttpEntityWrapper;
/**
* ProgressOutHttpEntity:输出流(OutputStream)时记录已发送字节数
* @author JPH
* Date:2014.11.03
*/
public class ProgressOutHttpEntity extends HttpEntityWrapper {
/**进度监听对象**/
private final ProgressListener listener;
public ProgressOutHttpEntity(final HttpEntity entity,final ProgressListener listener) {
super(entity);
this.listener = listener;
}
public static class CountingOutputStream extends FilterOutputStream {
private final ProgressListener listener;
private long transferred;
CountingOutputStream(final OutputStream out,
final ProgressListener listener) {
super(out);
this.listener = listener;
this.transferred = 0;
}
@Override
public void write(final byte[] b, final int off, final int len)
throws IOException {
out.write(b, off, len);
this.transferred += len;
this.listener.transferred(this.transferred);
}
@Override
public void write(final int b) throws IOException {
out.write(b);
this.transferred++;
this.listener.transferred(this.transferred);
}
}
@Override
public void writeTo(final OutputStream out) throws IOException {
this.wrappedEntity.writeTo(out instanceof CountingOutputStream ? out
: new CountingOutputStream(out, this.listener));
}
/**
* 进度监听器接口
*/
public interface ProgressListener {
public void transferred(long transferedBytes);
}
}
package com.jph.ufh.utils; import java.io.FilterOutputStream; import java.io.IOException; import java.io.OutputStream; import org.apache.http.HttpEntity; import org.apache.http.entity.HttpEntityWrapper; /** * ProgressOutHttpEntity:输出流(OutputStream)时记录已发送字节数 * @author JPH * Date:2014.11.03 */ public class ProgressOutHttpEntity extends HttpEntityWrapper { /**进度监听对象**/ private final ProgressListener listener; public ProgressOutHttpEntity(final HttpEntity entity,final ProgressListener listener) { super(entity); this.listener = listener; } public static class CountingOutputStream extends FilterOutputStream { private final ProgressListener listener; private long transferred; CountingOutputStream(final OutputStream out, final ProgressListener listener) { super(out); this.listener = listener; this.transferred = 0; } @Override public void write(final byte[] b, final int off, final int len) throws IOException { out.write(b, off, len); this.transferred += len; this.listener.transferred(this.transferred); } @Override public void write(final int b) throws IOException { out.write(b); this.transferred++; this.listener.transferred(this.transferred); } } @Override public void writeTo(final OutputStream out) throws IOException { this.wrappedEntity.writeTo(out instanceof CountingOutputStream ? out : new CountingOutputStream(out, this.listener)); } /** * 进度监听器接口 */ public interface ProgressListener { public void transferred(long transferedBytes); } }
最后就是使用上述实现的类和Httpclient进行上传并显示进度的功能,非常简单,代码如下,使用AsyncTask异步上传。
[java]
view plain
copy
print?
/**
* 异步AsyncTask+HttpClient上传文件,支持多文件上传,并显示上传进度
* @author JPH
* Date:2014.10.09
* last modified 2014.11.03
*/
public class UploadUtilsAsync extends AsyncTask<String, Integer, String>{
/**服务器路径**/
private String url;
/**上传的参数**/
private Map<String,String>paramMap;
/**要上传的文件**/
private ArrayList<File>files;
private long totalSize;
private Context context;
private ProgressDialog progressDialog;
public UploadUtilsAsync(Context context,String url,Map<String, String>paramMap,ArrayList<File>files) {
this.context=context;
this.url=url;
this.paramMap=paramMap;
this.files=files;
}
@Override
protected void onPreExecute() {//执行前的初始化
// TODO Auto-generated method stub
progressDialog=new ProgressDialog(context);
progressDialog.setTitle("请稍等...");
progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressDialog.setCancelable(true);
progressDialog.show();
super.onPreExecute();
}
@Override
protected String doInBackground(String... params) {//执行任务
// TODO Auto-generated method stub
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
builder.setCharset(Charset.forName(HTTP.UTF_8));//设置请求的编码格式
builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);//设置浏览器兼容模式
int count=0;
for (File file:files) {
// FileBody fileBody = new FileBody(file);//把文件转换成流对象FileBody
// builder.addPart("file"+count, fileBody);
builder.addBinaryBody("file"+count, file);
count++;
}
builder.addTextBody("method", paramMap.get("method"));//设置请求参数
builder.addTextBody("fileTypes", paramMap.get("fileTypes"));//设置请求参数
HttpEntity entity = builder.build();// 生成 HTTP POST 实体
totalSize = entity.getContentLength();//获取上传文件的大小
ProgressOutHttpEntity progressHttpEntity = new ProgressOutHttpEntity(
entity, new ProgressListener() {
@Override
public void transferred(long transferedBytes) {
publishProgress((int) (100 * transferedBytes / totalSize));//更新进度
}
});
return uploadFile(url, progressHttpEntity);
}
@Override
protected void onProgressUpdate(Integer... values) {//执行进度
// TODO Auto-generated method stub
Log.i("info", "values:"+values[0]);
progressDialog.setProgress((int)values[0]);//更新进度条
super.onProgressUpdate(values);
}
@Override
protected void onPostExecute(String result) {//执行结果
// TODO Auto-generated method stub
Log.i("info", result);
Toast.makeText(context, result, Toast.LENGTH_LONG).show();
progressDialog.dismiss();
super.onPostExecute(result);
}
/**
* 向服务器上传文件
* @param url
* @param entity
* @return
*/
public String uploadFile(String url, ProgressOutHttpEntity entity) {
HttpClient httpClient=new DefaultHttpClient();// 开启一个客户端 HTTP 请求
httpClient.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
httpClient.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 5000);// 设置连接超时时间
HttpPost httpPost = new HttpPost(url);//创建 HTTP POST 请求
httpPost.setEntity(entity);
try {
HttpResponse httpResponse = httpClient.execute(httpPost);
if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
return "文件上传成功";
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (ConnectTimeoutException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (httpClient != null && httpClient.getConnectionManager() != null) {
httpClient.getConnectionManager().shutdown();
}
}
return "文件上传失败";
}
}
/** * 异步AsyncTask+HttpClient上传文件,支持多文件上传,并显示上传进度 * @author JPH * Date:2014.10.09 * last modified 2014.11.03 */ public class UploadUtilsAsync extends AsyncTask<String, Integer, String>{ /**服务器路径**/ private String url; /**上传的参数**/ private Map<String,String>paramMap; /**要上传的文件**/ private ArrayList<File>files; private long totalSize; private Context context; private ProgressDialog progressDialog; public UploadUtilsAsync(Context context,String url,Map<String, String>paramMap,ArrayList<File>files) { this.context=context; this.url=url; this.paramMap=paramMap; this.files=files; } @Override protected void onPreExecute() {//执行前的初始化 // TODO Auto-generated method stub progressDialog=new ProgressDialog(context); progressDialog.setTitle("请稍等..."); progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); progressDialog.setCancelable(true); progressDialog.show(); super.onPreExecute(); } @Override protected String doInBackground(String... params) {//执行任务 // TODO Auto-generated method stub MultipartEntityBuilder builder = MultipartEntityBuilder.create(); builder.setCharset(Charset.forName(HTTP.UTF_8));//设置请求的编码格式 builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);//设置浏览器兼容模式 int count=0; for (File file:files) { // FileBody fileBody = new FileBody(file);//把文件转换成流对象FileBody // builder.addPart("file"+count, fileBody); builder.addBinaryBody("file"+count, file); count++; } builder.addTextBody("method", paramMap.get("method"));//设置请求参数 builder.addTextBody("fileTypes", paramMap.get("fileTypes"));//设置请求参数 HttpEntity entity = builder.build();// 生成 HTTP POST 实体 totalSize = entity.getContentLength();//获取上传文件的大小 ProgressOutHttpEntity progressHttpEntity = new ProgressOutHttpEntity( entity, new ProgressListener() { @Override public void transferred(long transferedBytes) { publishProgress((int) (100 * transferedBytes / totalSize));//更新进度 } }); return uploadFile(url, progressHttpEntity); } @Override protected void onProgressUpdate(Integer... values) {//执行进度 // TODO Auto-generated method stub Log.i("info", "values:"+values[0]); progressDialog.setProgress((int)values[0]);//更新进度条 super.onProgressUpdate(values); } @Override protected void onPostExecute(String result) {//执行结果 // TODO Auto-generated method stub Log.i("info", result); Toast.makeText(context, result, Toast.LENGTH_LONG).show(); progressDialog.dismiss(); super.onPostExecute(result); } /** * 向服务器上传文件 * @param url * @param entity * @return */ public String uploadFile(String url, ProgressOutHttpEntity entity) { HttpClient httpClient=new DefaultHttpClient();// 开启一个客户端 HTTP 请求 httpClient.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1); httpClient.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 5000);// 设置连接超时时间 HttpPost httpPost = new HttpPost(url);//创建 HTTP POST 请求 httpPost.setEntity(entity); try { HttpResponse httpResponse = httpClient.execute(httpPost); if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) { return "文件上传成功"; } } catch (ClientProtocolException e) { e.printStackTrace(); } catch (ConnectTimeoutException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } finally { if (httpClient != null && httpClient.getConnectionManager() != null) { httpClient.getConnectionManager().shutdown(); } } return "文件上传失败"; } }
关于服务器端如何接收:可以参考:《Android网络编程之使用HttpClient批量上传文件》,我在里面已经介绍的很清楚了。
如果你觉得这篇博文对你有帮助的话,请为这篇博文点个赞吧!也可以关注fengyuzhengfan的博客,收看更多精彩!http://blog.csdn.net/fengyuzhengfan/
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