Android Open Source - spring-android-samples File Upload Controller

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright 2010-2014 the original author or authors.
 *// ww w  . j  a v a2s  .  c o m
 * 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 showcase;

import java.io.IOException;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;

/**
 * Handles requests for the application file upload page.
 * 
 * @author Roy Clarkson
 */
@Controller
public class FileUploadController {

  private static final Logger logger = LoggerFactory.getLogger(FileUploadController.class);

  /**
   * Simply selects the view to render by returning its name.
   */
  @RequestMapping(value = "fileupload", method = RequestMethod.GET)
  public String fileUpload() {
    return "fileupload";
  }

  /**
   * Accepts a POST request with multipart/form-data content
   * @param name the name of the file being uploaded
   * @param file the binary file
   * @return response message indicating success or failure
   */
  @RequestMapping(value = "postformdata", method = RequestMethod.POST, headers = "Content-Type=multipart/form-data")
  public @ResponseBody String handleFormUpload(@RequestParam("description") String description,
      @RequestParam("file") MultipartFile file) {

    if (!file.isEmpty()) {
      byte[] bytes = null;
      try {
        bytes = file.getBytes();
      } catch (IOException e) {
        logger.info("error processing uploaded file", e);
      }
      return "file upload received! Name:[" + description + "] Size:["
          + bytes.length + "]";
    } else {
      return "file upload failed!";
    }
  }

}

Java Source Code List

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