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);
- }
- }
复制代码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);
- }
-
复制代码
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/49945915 demo:https://github.com/yanzi1225627/TestMultipartRequest
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