【转载】Android 使用volley上传图片、多张图片
使用volley请求数据很简便，但遇到上传文件就麻烦那可不好，同时使用多个网络请求类库也是不太建议的。所以这里就给出了一种解决方法，也要借助一个jar包，这里用到的是httpmime(点击下载)，主要用到的是MultipartEntity类，可以对请求参数进行封装。主要是继承volley的Request类，然后通过使用httpmim的MultipartEntity类对文件参数进行封装，这里实现了一个参数名对应一个文件，一个参数名对应多个文件，如果还要多个参数名对应多个文件可以自己试着实现一下哈：package com.android.volley.toolbox;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.http.entity.mime.MultipartEntity;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.entity.mime.content.StringBody;
import com.android.volley.AuthFailureError;
import com.android.volley.NetworkResponse;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyLog;
import com.common.utils.CLog;
import com.common.utils.FileUtil;
public class MultipartRequest extends Request<String> {
private MultipartEntity entity = new MultipartEntity();
private final Response.Listener<String> mListener;
private List<File> mFileParts;
private String mFilePartName;
private Map<String, String> mParams;
/**
* 单个文件
* @param url
* @param errorListener
* @param listener
* @param filePartName
* @param file
* @param params
*/
public MultipartRequest(String url, Response.ErrorListener errorListener,
Response.Listener<String> listener, String filePartName, File file,
Map<String, String> params) {
super(Method.POST, url, errorListener);
mFileParts = new ArrayList<File>();
if (file != null) {
mFileParts.add(file);
}
mFilePartName = filePartName;
mListener = listener;
mParams = params;
buildMultipartEntity();
}
/**
* 多个文件，对应一个key
* @param url
* @param errorListener
* @param listener
* @param filePartName
* @param files
* @param params
*/
public MultipartRequest(String url, Response.ErrorListener errorListener,
Response.Listener<String> listener, String filePartName,
List<File> files, Map<String, String> params) {
super(Method.POST, url, errorListener);
mFilePartName = filePartName;
mListener = listener;
mFileParts = files;
mParams = params;
buildMultipartEntity();
}
private void buildMultipartEntity() {
if (mFileParts != null && mFileParts.size() > 0) {
for (File file : mFileParts) {
entity.addPart(mFilePartName, new FileBody(file));
}
long l = entity.getContentLength();
CLog.log(mFileParts.size()+"个，长度："+l);
}
try {
if (mParams != null && mParams.size() > 0) {
for (Map.Entry<String, String> entry : mParams.entrySet()) {
entity.addPart(
entry.getKey(),
new StringBody(entry.getValue(), Charset
.forName("UTF-8")));
}
}
} catch (UnsupportedEncodingException e) {
VolleyLog.e("UnsupportedEncodingException");
}
}
@Override
public String getBodyContentType() {
return entity.getContentType().getValue();
}
@Override
public byte[] getBody() throws AuthFailureError {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
try {
entity.writeTo(bos);
} catch (IOException e) {
VolleyLog.e("IOException writing to ByteArrayOutputStream");
}
return bos.toByteArray();
}
@Override
protected Response<String> parseNetworkResponse(NetworkResponse response) {
CLog.log("parseNetworkResponse");
if (VolleyLog.DEBUG) {
if (response.headers != null) {
for (Map.Entry<String, String> entry : response.headers
.entrySet()) {
VolleyLog.d(entry.getKey() + "=" + entry.getValue());
}
}
}
String parsed;
try {
parsed = new String(response.data,
HttpHeaderParser.parseCharset(response.headers));
} catch (UnsupportedEncodingException e) {
parsed = new String(response.data);
}
return Response.success(parsed,
HttpHeaderParser.parseCacheHeaders(response));
}
/*
* (non-Javadoc)
*
* @see com.android.volley.Request#getHeaders()
*/
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
VolleyLog.d("getHeaders");
Map<String, String> headers = super.getHeaders();
if (headers == null || headers.equals(Collections.emptyMap())) {
headers = new HashMap<String, String>();
}
return headers;
}
@Override
protected void deliverResponse(String response) {
mListener.onResponse(response);
}
}通过这个请求就可以上传多文件了
private void doUploadTest(){
String path = "/mnt/sdcard/0/test.jpg";
String url = "http://app.sod90.com/xxx/upload/app_upload"; //换成自己的测试url地址
Map<String, String> params = new HashMap<String, String>();
params.put("id", "19");
params.put("type", "shop");
File f1 = new File(path);
File f2 = new File(path);
if(!f1.exists()){
Toast.makeText(getApplicationContext(), "图片不存在，测试无效", Toast.LENGTH_SHORT).show();
return;
}
List<File> f = new ArrayList<File>();
f.add(f1);
f.add(f2);
MultipartRequest request = new MultipartRequest(url, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Toast.makeText(getApplicationContext(), "uploadSuccess,response = " + response, Toast.LENGTH_SHORT).show();
Log.i("YanZi", "success,response = " + response);
}
}, new ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getApplicationContext(), "uploadError,response = " + error.getMessage(), Toast.LENGTH_SHORT).show();
Log.i("YanZi", "error,response = " + error.getMessage());
}
}, "f_file[]", f1, params); //注意这个key必须是f_file[],后面的[]不能少
mSingleQueue.add(request);
}
类似：Android基于Volley实现多文件/图片上传（包含服务器端）
http://blog.csdn.net/yanzi1225627/article/details/49945915demo：https://github.com/yanzi1225627/TestMultipartRequest
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