cn.hhh.myandroidserver.response.AndServerUploadHandler.java Source code

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Here is the source code for cn.hhh.myandroidserver.response.AndServerUploadHandler.java

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/*
 * Copyright  Yan Zhenjie. All Rights Reserved
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package cn.hhh.myandroidserver.response;

import android.os.Environment;

import com.yanzhenjie.andserver.AndServerRequestHandler;
import com.yanzhenjie.andserver.util.HttpRequestParser;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.ProgressListener;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.httpserv.HttpServFileUpload;
import org.apache.commons.fileupload.httpserv.HttpServRequestContext;
import org.apache.http.HttpException;
import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.http.entity.StringEntity;
import org.apache.http.protocol.HttpContext;

import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.Map;

/**
 * <p>?</p>
 * Created on 2016/6/13.
 *
 * @author Yan Zhenjie.
 */
public class AndServerUploadHandler implements AndServerRequestHandler {

    @Override
    public void handle(HttpRequest request, HttpResponse response, HttpContext context)
            throws HttpException, IOException {
        System.out.println("123");
        if (HttpServFileUpload.isMultipartContent(request)) {//??

            // ????
            Map<String, String> params = HttpRequestParser.parse(request);//?

            // ?

            String saveUpLoadDirPath = Environment.getExternalStorageDirectory().getPath() + "/hhhService";
            final File saveUpLoadDir = new File(saveUpLoadDirPath);
            if (!(saveUpLoadDir.exists() && saveUpLoadDir.isDirectory()))
                if (!saveUpLoadDir.mkdirs()) {
                    response(400, "The server can not save the file.", response);
                    return;
                }

            try {
                // ?
                processFileUpload(request, saveUpLoadDir);
                response(200, "Ok.", response);
            } catch (Exception e) {
                e.printStackTrace();
                response(500, "Save the file when the error occurs.", response);
            }

        } else {// ??
            response(403, "You must upload file, contentType is multipart/form-data.", response);
        }
    }

    /**
     * ??SD?
     *
     * @param request   {@link HttpRequest}.
     * @param uploadDir ?
     * @throws Exception ???
     */
    private void processFileUpload(HttpRequest request, File uploadDir) throws Exception {
        FileItemFactory factory = new DiskFileItemFactory(1024 * 1024, uploadDir);
        HttpServFileUpload fileUpload = new HttpServFileUpload(factory);

        // ???handlerUI
        fileUpload.setProgressListener(new AndWebProgressListener());

        List<FileItem> fileItems = fileUpload.parseRequest(new HttpServRequestContext(request));

        for (FileItem fileItem : fileItems) {
            if (!fileItem.isFormField()) {
                // ?
                //                fileItem.getContentType()
                File uploadedFile = new File(uploadDir, fileItem.getName());

                // ?
                fileItem.write(uploadedFile);

            }
        }
    }

    /**
     * ????
     *
     * @param responseCode ??
     * @param message      ??
     * @param response     ?
     * @throws Exception ????
     */
    private void response(int responseCode, String message, HttpResponse response) throws IOException {
        response.setStatusCode(responseCode);
        response.setEntity(new StringEntity(message, "utf-8"));
    }

    private class AndWebProgressListener implements ProgressListener {
        /**
         * .
         *
         * @param pBytesRead     
         * @param pContentLength ??-1
         * @param pItems         0?1
         */
        @Override
        public void update(long pBytesRead, long pContentLength, int pItems) {
            if (pContentLength != -1) {
                int progress = (int) (pBytesRead * 100 / pContentLength);

            }
        }
    }
}