Spring Dropbox API 연동

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Hello World

Spring Dropbox API 연동 본문

Spring/Boot(4.x)

Spring Dropbox API 연동

EnterKey 2016. 1. 10. 11:27

Dropbox 연동 테스트를 할 일이 있어서, Dropbox Java v2 API를 사용해보았다.

실제 예제대로 하면 잘 동작하지 않아서 포스팅 한다.

URL : https://www.dropbox.com/developers/documentation/java#tutorial

개발환경: Spring Boot 1.3.1, Maven

폴더 구조

Application.java

DropboxController.java

package me.enterkey.controller;

import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletResponse;

import me.enterkey.dto.DropboxDTO;
import me.enterkey.service.DropboxService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.RequestBody;
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;

import com.dropbox.core.v2.DbxClientV2;

@Controller
@RequestMapping("dropbox")
public class DropboxController {
	@Autowired
	DropboxService dropboxService;
	
	@Autowired
	DbxClientV2 dbxClientV2;
	
	@RequestMapping(value = "/upload", method = RequestMethod.POST)
	@ResponseBody
	public String handleFileUpload(
		@RequestParam("file") MultipartFile file,
		@RequestParam("filePath") String filePath
	) throws Exception {
		dropboxService.fileUpload(file, filePath);
		return "You successfully uploaded " + filePath + "!";
    }
	
	@RequestMapping(value = "/list", method = RequestMethod.GET)
	@ResponseBody
	public List<Map<String, Object>> index(
		@RequestParam(value = "target", required = false, defaultValue = "") String target
	) throws Exception {
		return dropboxService.getFileList(target);
	}

@RequestMapping(value = "/download", method = RequestMethod.GET)
	@ResponseBody
	public void fileDownload(
		HttpServletResponse response, 
		@RequestBody DropboxDTO.Download download
	) throws Exception {
		dropboxService.fileDownload(response, download);
	}
	
	
	@RequestMapping(value = "/delete", method = RequestMethod.DELETE)
	@ResponseBody
	public ResponseEntity fileDelete(
		@RequestBody DropboxDTO.Delete delete, BindingResult result
	) throws Exception {
		dropboxService.fileDelete(delete);
		
		DropboxDTO.Response response = new DropboxDTO.Response(200, "success");
		return new ResponseEntity<>(response, HttpStatus.OK);
	}
}

DropboxService.java

package me.enterkey.service;

import java.io.ByteArrayInputStream;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import com.dropbox.core.v2.DbxClientV2;
import com.dropbox.core.v2.DbxFiles.Metadata;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;

import me.enterkey.dto.DropboxDTO;

@Service
public class DropboxService {
	@Autowired
	DbxClientV2 dbxClientV2;
	
	public void fileUpload(MultipartFile file, String FilePath) throws Exception {
		ByteArrayInputStream bis = new ByteArrayInputStream(file.getBytes());
        Metadata uploadMetadata = dbxClientV2.files.uploadBuilder(FilePath).run(bis);
        System.out.println("uploadMetadata : " + uploadMetadata.toString());
        bis.close();
	}
	
	public List<Map<String, Object>> getFileList(String target) throws Exception {
		// target 경로 내의 폴더 정보 조회
		ArrayList<Metadata> entries = dbxClientV2.files.listFolder(target).entries;
		
		List<Map<String, Object>> result = new ArrayList<>();
		
		// 폴더 내의 meta 정보 iteration
		for (Metadata metadata : entries) {
			String medtaDataString = metadata.toJson(false);
			ObjectMapper mapper = new ObjectMapper();
			Map<String, Object> map = new HashMap<String, Object>();
			map = mapper.readValue(medtaDataString, new TypeReference<Map<String, String>>(){});
			result.add(map);
		}
		return result;
	}
	
	public void fileDownload(HttpServletResponse response, DropboxDTO.Download download) throws Exception {
		response.setContentType("application/octet-stream");
	    response.setHeader("Content-Disposition", "attachment; fileName=\"" + URLEncoder.encode(download.getFileName(),"UTF-8")+"\";");
	    response.setHeader("Content-Transfer-Encoding", "binary");
	    
		ServletOutputStream out = response.getOutputStream();
		dbxClientV2.files.downloadBuilder(download.getFilePath()).run(out);
		
		response.getOutputStream().flush();
	    response.getOutputStream().close();
	}
	
	public void fileDelete(DropboxDTO.Delete delete) throws Exception {
		dbxClientV2.files.delete(delete.getFilePath());
	}
	
}

DropboxDTO.java

package me.enterkey.dto;

import org.springframework.web.multipart.MultipartFile;

public class DropboxDTO {
	/**
	 * File Upload
	 * @author dooseong.eom
	 *
	 */
	public static class Upload {
		private String filePath;
		private MultipartFile file;
		
		public String getFilePath() {
			return filePath;
		}
		public void setFilePath(String filePath) {
			this.filePath = filePath;
		}
		public MultipartFile getMultipartFile() {
			return file;
		}
		public void setMultipartFile(MultipartFile file) {
			this.file = file;
		}
		
	}

/**
	 * File Download
	 * @author dooseong.eom
	 *
	 */
	public static class Download {
		private String fileName;
		private String filePath;

public String getFileName() {
			return fileName;
		}

public void setFileName(String fileName) {
			this.fileName = fileName;
		}

public String getFilePath() {
			return filePath;
		}

public void setFilePath(String filePath) {
			this.filePath = filePath;
		}

}

/**
	 * File Delete
	 * @author dooseong.eom
	 *
	 */
	public static class Delete {
		private String filePath;

public String getFilePath() {
			return filePath;
		}

public void setFilePath(String filePath) {
			this.filePath = filePath;
		}
	}

/**
	 * Dropbox Controller Response
	 * @author dooseong.eom
	 *
	 */
	public static class Response {
		private int statusCode;
		private String message;

public Response(int statusCode, String message) {
			super();
			this.statusCode = statusCode;
			this.message = message;
		}

public int getStatusCode() {
			return statusCode;
		}

public void setStatusCode(int statusCode) {
			this.statusCode = statusCode;
		}

public String getMessage() {
			return message;
		}

public void setMessage(String message) {
			this.message = message;
		}
	}
}

----------------------------------------------------------------------------------------------------------------------------------

Rest API로 테스트 하기위해 간단한 뷰도 추가

뷰 구조 :

SyntaxHighlighter에 html 표시하는데 문제가 있어서 간단히 표시

index.html

<!DOCTYPE html>

<head lang="en">
    <meta charset="UTF-8"/>
    <title>Dropbox CRUD</title>
    <link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css"
          th:href="@{/webjars/bootstrap/3.3.4/css/bootstrap.min.css}"/>
    <link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap-theme.min.css"
          th:href="@{/webjars/bootstrap/3.3.4/css/bootstrap-theme.min.css}"/>
    <link href="../../../static/resources/css/main.css"
         th:href="@{/resources/css/main.css}"
         rel="stylesheet" media="screen" />
</head>

<nav class="navbar navbar-inverse navbar-fixed-top">
      <div class="container">
        <div class="navbar-header">
          <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
            <span class="sr-only">Toggle navigation</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
          </button>
          <a class="navbar-brand" href="#">Dropbox CRUD</a>
        </div>
      </div>
    </nav>

<div class="container-fluid">
      <div class="row">
        <div class="col-md-12 main">
          <h1 class="page-header">Dashboard</h1>
			
          <div class="row placeholders">
			<div class="row">
				<div class="col-sm-12 col-md-12">
					<label for="inputFileSize" class="col-sm-1 control-label">Log File Size</label>
			    	<div class="col-sm-2">
			      		<input type="text" class="form-control" id="inputFileSize" placeholder="Default 10MB" />
			    	</div>
			    	<p class="col-sm-9">Total: <span class="totalFileSize">10</span>MB</p>
				</div>
		  	</div>
          </div>

<h2 class="sub-header">Process Select Table</h2>
          <div class="table-responsive">
            <table class="table table-striped">
              <thead>
                <tr>
                  <th>#</th>
                  <th>Excute</th>
                  <th>Process</th>
                </tr>
              </thead>
              <tbody>
                <tr>
                  <td>1</td>
                  <td><input type="button" class="btn btn-default excute-btn" data-type="upload" value="실행" /></td>
                  <td>file upload</td>
                </tr>
                
                <tr>
                  <td>2</td>
                  <td><input type="button" class="btn btn-default excute-btn" data-type="download" value="실행" /></td>
                  <td>file download</td>
                </tr>
                
                <tr>
                  <td>3</td>
                  <td><input type="button" class="btn btn-default excute-btn" data-type="delete" value="실행" /></td>
                  <td>file delete</td>
                </tr>
              </tbody>
            </table>
          </div>
        </div>
      </div>
    </div>    
    
	<script src="https://code.jquery.com/jquery-1.11.3.min.js"
	        th:src="@{/webjars/jquery/1.11.3/jquery.min.js}"></script>
	<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"
	        th:src="@{/webjars/bootstrap/3.3.4/js/bootstrap.min.js}"></script>
    <script src="../../../static/resources/javascript/main.js"
	        th:src="@{/resources/javascript/main.js}">
    </script>

main.js

$( document ).ready(function() {
	init();
});

function init() {
	addEventListener();
}

function addEventListener() {
	excuteProcess();
	changeFileSize();
}

main.css

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