resteasy上传单个文件/多个文件到阿里云服务器

代码如下：

ExcelServerController.java

package com.xgt.controller;

import com.xgt.bean.bs.ExcelBean;
import com.xgt.common.BaseController;
import com.xgt.common.PcsResult;
import com.xgt.exception.EnumPcsServiceError;
import com.xgt.util.ConstantsUtil;
import com.xgt.util.MD5Util;
import com.xgt.util.OssUtil;
import org.apache.commons.io.IOUtils;
import org.jboss.resteasy.plugins.providers.multipart.InputPart;
import org.jboss.resteasy.plugins.providers.multipart.MultipartFormDataInput;
import org.springframework.stereotype.Controller;

import javax.ws.rs.Consumes;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.Map;

/**
 * Created by Administrator on 2017/8/31.
 * 上传Excel到服务器
 */
@Controller
@Path("/excelserver")
public class ExcelServerController extends BaseController{

    @POST
    @Path("/uploadExcel")
    @Consumes(MediaType.MULTIPART_FORM_DATA)
    @Produces(MediaType.APPLICATION_JSON)
    public PcsResult uploadExcel(MultipartFormDataInput input) {
        try {
            Map<String, List<InputPart>> uploadForm = input.getFormDataMap();
            ExcelBean excelBean = convertMap(uploadForm);
            uploadExcelFile(excelBean);
        } catch (Exception e) {
            e.printStackTrace();
            PcsResult result = new PcsResult();
            result.setCode(EnumPcsServiceError.ERROR_OPERATE.getCode()).setMessage(EnumPcsServiceError.ERROR_OPERATE.getDesc());
            result.setSuccess(false);
            return result;
        }
        return newResult(true);
    }

    private void uploadExcelFile(ExcelBean excelBean) throws FileNotFoundException {
        if(excelBean.getExcelPath().length>0){
            // 上传到图片服务器
　　　　　　　//这里是自己的服务器id，密码等关键信息
            OssUtil oss=new OssUtil(accessKeyId, accessKeySecret, endpoint,bucketName);
            //图片
            String EXCELFileName = excelBean.getExcelPathName().substring(0,
                    excelBean.getExcelPathName().lastIndexOf(".")).toLowerCase();
            EXCELFileName = MD5Util.MD5(EXCELFileName+System.currentTimeMillis());
            String EXCELExtName = excelBean.getExcelPathName().substring(
                    excelBean.getExcelPathName().lastIndexOf("."), excelBean.getExcelPathName().length())
                    .toLowerCase();
            oss.putObject(ConstantsUtil.Folder_EXCEL_CHART+ConstantsUtil.FILE_SEPARATOR
                    +EXCELFileName+EXCELExtName, excelBean.getExcelPath());
            excelBean.setExcelPathName(ConstantsUtil.Folder_EXCEL_CHART+ConstantsUtil.FILE_SEPARATOR
                    +EXCELFileName+EXCELExtName);
        }
    }

    /**
     * 数据摘取组装
     * @param uploadForm
     * @return
     * @throws IOException
     */
    private ExcelBean convertMap(Map<String, List<InputPart>> uploadForm) throws IOException {
        ExcelBean excelBean=new ExcelBean();
        if(uploadForm!=null) {
//普通实体类String属性inputPart.getBodyAsString()
//接收Integer类型，加一个Integer.parseInt(inputPart.getBodyAsString())即可
            if (uploadForm.containsKey("excelPathName")) {
                InputPart inputPart = uploadForm.get("excelPathName").get(0);
                inputPart.setMediaType(MediaType.TEXT_PLAIN_TYPE);
                excelBean.setExcelPathName(inputPart.getBodyAsString());
            }
//***文件这么做，用输入流接收
            if (uploadForm.containsKey("excelPath")) {
                InputPart inputPart = uploadForm.get("excelPath").get(0);
                MultivaluedMap<String, String> header = inputPart.getHeaders();
                excelBean.setExcelPathName(getFileName(header));
                InputStream inputStream = inputPart.getBody(InputStream.class, null);
                excelBean.setExcelPath(IOUtils.toByteArray(inputStream));
            }

        }
        return excelBean;
    }

    /**
     * 返回文件名
     * @param header
     * @return
     */
    private String getFileName(MultivaluedMap<String, String> header) {
        String[] contentDisposition = header.getFirst("Content-Disposition").split(";");
        for (String filename : contentDisposition) {
            if ((filename.trim().startsWith("filename"))) {
                String[] name = filename.split("=");
                String finalFileName = name[1].trim().replaceAll("\"", "");
                return finalFileName;
            }
        }
        return "unknown";
    }

}

关键是获取到MultipartFormDataInput的map，解析成ExcelBean类型，并注入进去

BaseController.java

package com.xgt.common;

import com.xgt.dao.entity.User;
import com.xgt.exception.EnumPcsServiceError;
import org.apache.shiro.SecurityUtils;
import org.springframework.beans.factory.annotation.Value;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import java.util.List;

/**
 * Base controller which contains common methods for other controllers.
 */
public class BaseController {

    @Value("${default.pageSize}")
    private int defPageSize;

    @Value("${default.maxPageSize}")
    private int defMaxPageSize;

    @Value("${aliyunOSS.accessKeyId}")
    protected String accessKeyId;

    @Value("${aliyunOSS.accessKeySecret}")
    protected String accessKeySecret;

    @Value("${aliyunOSS.uploadUrl}")
    protected String endpoint;

    @Value("${aliyunOSS.bucketname}")
    protected String bucketName;

    @Value("${aliyunOSS.imageAddress}")
    protected String imageAddress;

    /**
     * Generate new PcsResult object, default with "SUCCESS" code.
     *
     * @return PcsResult result.
     */
    protected PcsResult newResult() {
        PcsResult result = new PcsResult();
        result.setCode(EnumPcsServiceError.SUCCESS.getCode()).setMessage(EnumPcsServiceError.SUCCESS.getDesc());
        return result;
    }
    /**
     * Generate new PcsResult object, default with "SUCCESS" code.
     *
     * @return PcsResult result.
     */
    protected PcsResult newResult(Boolean success) {
        PcsResult result = new PcsResult();
        result.setSuccess(success);
        result.setCode(EnumPcsServiceError.SUCCESS.getCode()).setMessage(EnumPcsServiceError.SUCCESS.getDesc());

        return result;
    }

    protected PcsResult failedResult(EnumPcsServiceError error) {
        PcsResult result = new PcsResult();
        result.setCode(error.getCode()).setMessage(error.getDesc());
        return result;
    }

    @SuppressWarnings("unused")
    protected PcsResult validateFailedResult(Integer errorCode, String description) {
        PcsResult result = new PcsResult();
        result.setCode(errorCode).setMessage(description);
        return result;
    }

    @SuppressWarnings("unused")
    protected PcsResult validateFailedResult(EnumPcsServiceError error) {
        PcsResult result = new PcsResult();
        result.setCode(error.getCode()).setMessage(error.getDesc());
        return result;
    }

    protected Integer getLoginUserId(){
        User user = (User) SecurityUtils.getSubject().getPrincipal();
        return user.getUserId();
    }

    protected List<Integer> getDepartmentUserIdList(){
        User user = (User) SecurityUtils.getSubject().getPrincipal();
        return user.getDepartmentUserIdList();
    }

    /**
     * 构建 分页 页数
     * @param page 页
     * @return int
     */
    protected int getCurPage(Integer page) {
        if (page==null || page<1) {
            return 1;
        }
        return page;
    }
    /**
     * 构建 分页 每页显示条数
     * @param pageSize 每页显示条数
     * @return int
     */
    protected int getPageSize(Integer pageSize) {
        if (pageSize==null || pageSize<1) {
            return defPageSize;
        }
        if (pageSize>defMaxPageSize) {
            return defMaxPageSize;
        }
        return pageSize;
    }

}

工具类，少文件了可以留言

ConstantsUtil.java

package com.xgt.util;

/**
 * @author CC
 * 常量工具类
 * Created by CC on 2017/2/26.
 */
public class ConstantsUtil {

    public final static String FILE_SEPARATOR = "/";

    public final static String CONDITIONSPLIT = "\\.";

    //订单大图
    public final  static String Folder_MAX_IMAGE="Order/Max";
    //订单小图
    public final static String Folder_MIN_IMAGE="Order/Min";
    //人员身份证
    public final static String Folder_IDCARD_IMAGE="Personnel/ID_Card";
    //人员入职登记表
    public final static String Folder_ENTRYFORM_IMAGE="Personnel/EntryForm";
    //Excel路径
    public final static String Folder_EXCEL_CHART="BaiSheng/Excel";

    /**
     * 订单相关附件类型常量
     */
    public final  static Integer TYPE_MIN_IMAGE=1;

    public final  static Integer TYPE_MAX_IMAGE=2;

}

OssUtil.java

package com.xgt.util;

import java.io.*;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletContext;

import com.aliyun.oss.OSSException;

import org.apache.log4j.Logger;

import com.aliyun.oss.OSSClient;
import com.aliyun.oss.model.CompleteMultipartUploadRequest;
import com.aliyun.oss.model.CompleteMultipartUploadResult;
import com.aliyun.oss.model.InitiateMultipartUploadRequest;
import com.aliyun.oss.model.InitiateMultipartUploadResult;
import com.aliyun.oss.model.ListObjectsRequest;
import com.aliyun.oss.model.OSSObject;
import com.aliyun.oss.model.OSSObjectSummary;
import com.aliyun.oss.model.ObjectListing;
import com.aliyun.oss.model.ObjectMetadata;
import com.aliyun.oss.model.PartETag;
import com.aliyun.oss.model.PutObjectResult;
import com.aliyun.oss.model.UploadPartRequest;
import com.aliyun.oss.model.UploadPartResult;
import org.springframework.beans.factory.annotation.Value;

public class OssUtil {
    private OSSClient client;

    private String accessKeyId;

    private String accessKeySecret;

    private String endpoint;

    private String bucketName;

    private Logger _logger = Logger.getLogger(OssUtil.class);
    private Map<String, String> suffixMap = new HashMap<String, String>(); // 后缀名map

    public String getAccessKeyId() {
        return accessKeyId;
    }

    public void setAccessKeyId(String accessKeyId) {
        this.accessKeyId = accessKeyId;
    }

    public String getAccessKeySecret() {
        return accessKeySecret;
    }

    public void setAccessKeySecret(String accessKeySecret) {
        this.accessKeySecret = accessKeySecret;
    }

    public String getEndpoint() {
        return endpoint;
    }

    public void setEndpoint(String endpoint) {
        this.endpoint = endpoint;
    }

    public String getBucketName() {
        return bucketName;
    }

    public void setBucketName(String bucketName) {
        this.bucketName = bucketName;
    }

    public OssUtil(String accessKeyId, String accessKeySecret, String endpoint,String bucketName) {
        this.accessKeyId=accessKeyId;
        this.accessKeySecret=accessKeySecret;
        this.endpoint=endpoint;
        this.bucketName=bucketName;
            // 初始化一个OSSClient
        this.client = new OSSClient(endpoint, accessKeyId, accessKeySecret);
        suffixMap.put(".jpg", "image/jpg");
        suffixMap.put(".gif", "image/gif");
        suffixMap.put(".png", "image/png");
    }

    public static void main(String[] args) {
        /* ServletContext sc=null;

        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        ModelManageService mms = (ModelManageService) ac.getBean("modelManageService");

        OssUtils oss = new OssUtils(sc);
        String accessKeyId = "gJzNJt7MhfihXs59";
        String accessKeySecret = "jhGOCGbdzMIq7COPdSEITRcTdC7Z2n";
        // 以杭州为例
        String endpoint = "http://oss-cn-hangzhou.aliyuncs.com";

        // 初始化一个OSSClient
        oss.client = new OSSClient(endpoint, accessKeyId, accessKeySecret);
        oss.bucketName="ypxgt-1";
         try {
         // oss.putObject("cc581", "images/aaaa/bbbb/ccc/logo.png",
         // "D://logo.png");
         // oss.listObjects("cc581");
             List<YwOrderModel> modelList=mms.getModelList();
             for(YwOrderModel model:modelList){
                 if(oss.isObjectExists(model.getMxlj00()+model.getMxmc00()+model.getMxkzm0())){
                     mms.updateModelUploadOss(model);
                 }
             }
         } catch (Exception e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
         }*/
    }

    /**
     * 从这里去判断是通过普通上传还是分块上传
     *
     * @throws IOException
     */
    public void uploadObject(String key, File file) throws IOException {
        // 大于50M
        if (file.length() / (1024 * 1024) >= 50) {
            this.MultipartUpload(key, file);
        } else {
            this.putObject(key, file);
        }

    }

    /**
     * 简单上传文件
     *
     * @param bucketName
     *            桶名
     * @param key
     *            文件名
     * @param filePath
     *            文件路径
     * @throws FileNotFoundException
     */
    public void putObject(String key, File file) throws FileNotFoundException {

        InputStream content = new FileInputStream(file);
        // 创建上传Object的Metadata
        ObjectMetadata meta = new ObjectMetadata();
        // 必须设置ContentLength
        meta.setContentLength(file.length());

        String suffix = key.substring(key.lastIndexOf("."));
        meta.setContentType(suffixMap.get(suffix));

        // 上传Object.
        PutObjectResult result = client.putObject(bucketName, key, content,
                meta);

        // 打印ETag
        _logger.info(file.getName() + "上传成功：" + result.getETag());

        client.shutdown();
    }

    /**
     * 简单上传文件

     * @param key
     *            文件名
     * @param file
     *            字节文件
     * @throws FileNotFoundException
     */
    public void putObject(String key,byte[] file) throws FileNotFoundException {
        // 上传Object.
        PutObjectResult result = client.putObject(bucketName, key, new ByteArrayInputStream(file));

        _logger.info("上传成功：" + result.getETag());
        client.shutdown();
    }

    /**
     * 创建文件夹
     *
     *            桶名
     * @param objectName
     *            文件夹名，必须以"/"结尾
     * @throws IOException
     */
    public void createFolder(String objectName) throws IOException {
        ObjectMetadata objectMeta = new ObjectMetadata();
        /*
         * 这里的size为0,注意OSS本身没有文件夹的概念,这里创建的文件夹本质上是一个size为0的Object,dataStream仍然可以有数据
         */
        byte[] buffer = new byte[0];
        ByteArrayInputStream in = new ByteArrayInputStream(buffer);
        objectMeta.setContentLength(0);
        try {
            client.putObject(bucketName, objectName, in, objectMeta);
        } finally {
            in.close();
        }
    }

    /**
     * 列出指定桶名里的所有Object
     *
     */
    public void listObjects() {

        // 获取指定bucket下的所有Object信息
        ObjectListing listing = client.listObjects(bucketName);

        // 遍历所有Object
        for (OSSObjectSummary objectSummary : listing.getObjectSummaries()) {
            System.out.println(objectSummary.getKey());
        }
    }

    public void listFiles() {
        // 构造ListObjectsRequest请求
        ListObjectsRequest listObjectsRequest = new ListObjectsRequest(
                bucketName);

        // List Objects
        ObjectListing listing = client.listObjects(listObjectsRequest);

        // 遍历所有Object
        System.out.println("Objects:");
        for (OSSObjectSummary objectSummary : listing.getObjectSummaries()) {
            System.out.println(objectSummary.getKey());
        }

        // 遍历所有CommonPrefix
        System.out.println("CommonPrefixs:");
        for (String commonPrefix : listing.getCommonPrefixes()) {
            System.out.println(commonPrefix);
        }
    }

    /**
     * 删除指定文件
     *
     * @param key
     */
    public void deleteObject(String key) {
        client.deleteObject(bucketName, key);
    }

    public File getObject(String key, String newFileName) throws IOException {
        _logger.info("-------------------开始调用getObject方法");
        _logger.info("key:" + key);
        _logger.info("newFileName:" + newFileName);
        // 获取Object，返回结果为OSSObject对象
        OSSObject object = client.getObject(bucketName, key);

        // 获取ObjectMeta
        ObjectMetadata meta = object.getObjectMetadata();

        // 获取Object的输入流
        InputStream objectContent = object.getObjectContent();

        File file = new File(newFileName);
        if (!file.exists()) {

            File dir = new File(newFileName.substring(0,
                    newFileName.lastIndexOf("\\")));

            if (!dir.exists()) {
                dir.mkdirs();
            }

            file.createNewFile();

            OutputStream out = new FileOutputStream(newFileName);
            byte[] bytes = new byte[objectContent.available()];
            while ((objectContent.read(bytes)) != -1) {
                out.write(bytes);
                bytes = new byte[objectContent.available()];
            }

            objectContent.close();
            out.close();
            // 关闭流
            // objectContent.close();
            return file;
        }
        return file;
    }

    public void MultipartUpload(String key, File partFile) throws IOException {

        // 开始Multipart Upload
        InitiateMultipartUploadRequest initiateMultipartUploadRequest = new InitiateMultipartUploadRequest(
                bucketName, key);
        InitiateMultipartUploadResult initiateMultipartUploadResult = client
                .initiateMultipartUpload(initiateMultipartUploadRequest);
        // 打印UploadId
        System.out.println("UploadId: "
                + initiateMultipartUploadResult.getUploadId());
        // 设置每块为 10M
        final int partSize = 1024 * 1024 * 10;
        // 计算分块数目
        int partCount = (int) (partFile.length() / partSize);
        if (partFile.length() % partSize != 0) {
            partCount++;
        }
        // 新建一个List保存每个分块上传后的ETag和PartNumber
        List<PartETag> partETags = new ArrayList<PartETag>();
        for (int i = 0; i < partCount; i++) {
            // 获取文件流
            FileInputStream fis = new FileInputStream(partFile);
            // 跳到每个分块的开头
            long skipBytes = partSize * i;
            fis.skip(skipBytes);
            // 计算每个分块的大小
            long size = partSize < partFile.length() - skipBytes ? partSize
                    : partFile.length() - skipBytes;
            // 创建UploadPartRequest，上传分块
            UploadPartRequest uploadPartRequest = new UploadPartRequest();
            uploadPartRequest.setBucketName(bucketName);
            uploadPartRequest.setKey(key);
            uploadPartRequest.setUploadId(initiateMultipartUploadResult
                    .getUploadId());
            uploadPartRequest.setInputStream(fis);
            uploadPartRequest.setPartSize(size);
            uploadPartRequest.setPartNumber(i + 1);
            UploadPartResult uploadPartResult = client
                    .uploadPart(uploadPartRequest);
            // 将返回的PartETag保存到List中。
            partETags.add(uploadPartResult.getPartETag());
            // 关闭文件

            fis.close();
        }
        CompleteMultipartUploadRequest completeMultipartUploadRequest = new CompleteMultipartUploadRequest(
                bucketName, key, initiateMultipartUploadResult.getUploadId(),
                partETags);

        // 完成分块上传
        CompleteMultipartUploadResult completeMultipartUploadResult = client
                .completeMultipartUpload(completeMultipartUploadRequest);

        // 打印Object的ETag
        System.out.println(completeMultipartUploadResult.getETag());
    }

    /**
     * 获取dir下所有的文件
     *
     * @param dir
     * @return
     */
    public List<OSSObjectSummary> getFileLstInDir(String dir) {
        // 构造ListObjectsRequest请求
        ListObjectsRequest listObjectsRequest = new ListObjectsRequest(
                bucketName);

        // "/" 为文件夹的分隔符
        listObjectsRequest.setDelimiter("/");

        // 列出fun目录下的所有文件和文件夹
        listObjectsRequest.setPrefix(dir + "/");

        ObjectListing listing = client.listObjects(listObjectsRequest);

        return listing.getObjectSummaries();
    }

    /**
     * 判断OSS上是否有key为keyName的Object
     *
     * @param keyName
     * @return
     */
    public boolean isObjectExists(String keyName) {
        // 获取Object，返回结果为OSSObject对象
        try {
            OSSObject object = client.getObject(bucketName, keyName);
            if (object != null) {
                return true;
            }
        } catch (OSSException e) {
            return false;
        }
        return false;
    }

    /**
     * 从OSS上下载CKT文件至本地并打包上传至OSS上
     *
     * @param wjjPath
     * @param localPath
     * @throws Exception
     */
    public void cktZip(String wjjPath, String localPath) throws Exception {
        _logger.info("wjjPath:" + wjjPath);
        _logger.info("localPath:" + localPath);

        // 获取OSS目录下参考图的List
        List<OSSObjectSummary> fileList = getFileLstInDir(wjjPath);
        _logger.info(fileList.size());

        if (fileList == null || fileList.size() == 0) {
            return;
        }

        File cktDir = new File(localPath + wjjPath);
        _logger.info(cktDir.getName());
        if (!cktDir.exists()) {
            cktDir.mkdirs();
        }

        for (OSSObjectSummary ossObject : fileList) {
            String fileName = ossObject.getKey();
            _logger.info("fileName:" + fileName);
            // 将OSS的文件取回本地，为下一步压缩ZIP包作准备
            getObject(fileName, localPath + fileName.replaceAll("/", "\\\\"));
        }
        ZipUtils zipUtils = new ZipUtils();
        _logger.info("need zip's dirName:" + localPath + wjjPath);
        zipUtils.compress(localPath + wjjPath);
        File zipFile = new File(localPath + wjjPath.replaceAll("/", "\\\\")
                + ".zip");
        _logger.info("压缩后的文件名:" + localPath + wjjPath.replaceAll("/", "\\\\")
                + ".zip");
        putObject(wjjPath + ".zip", zipFile);
        if (zipFile.exists()) {
            zipFile.delete();
        }
    }

}

MD5Util.java

package com.xgt.util;

import java.security.MessageDigest;
import java.util.Random;

public class MD5Util {
    public final static String MD5(String s) {
        char hexDigits[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
                'A', 'B', 'C', 'D', 'E', 'F'};
        try {
            byte[] btInput = s.getBytes();
            // 获得MD5摘要算法的 MessageDigest 对象
            MessageDigest mdInst = MessageDigest.getInstance("MD5");
            // 使用指定的字节更新摘要
            mdInst.update(btInput);
            // 获得密文
            byte[] md = mdInst.digest();
            // 把密文转换成十六进制的字符串形式
            int j = md.length;
            char str[] = new char[j * 2];
            int k = 0;
            for (int i = 0; i < j; i++) {
                byte byte0 = md[i];
                str[k++] = hexDigits[byte0 >>> 4 & 0xf];
                str[k++] = hexDigits[byte0 & 0xf];
            }
            return new String(str);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static String toMD5(byte[] source) {
        try {
            MessageDigest md = MessageDigest.getInstance("MD5");
            md.update(source);
            StringBuffer buf = new StringBuffer();
            for (byte b : md.digest())
                buf.append(String.format("%02x", b & 0xff));
            return buf.toString();
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static String getRandomPassword(int pwd_len) {
        // 35是因为数组是从0开始的，26个字母+10个数字
        final int maxNum = 10;
        int i; // 生成的随机数
        int count = 0; // 生成的密码的长度
        // char[] str = { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k',
        // 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
        // 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' };
        char[] str = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'};

        StringBuffer pwd = new StringBuffer("");
        Random r = new Random();
        while (count < pwd_len) {
            // 生成随机数，取绝对值，防止生成负数，

            i = Math.abs(r.nextInt(maxNum)); // 生成的数最大为36-1

            if (i >= 0 && i < str.length) {
                pwd.append(str[i]);
                count++;
            }
        }

        return pwd.toString();
    }

    public static void main(String[] args) {
    }
}