怎样将压缩文件上传到服务器上

前言： 由于项目api是一台服务器，upload也是一台服务器，所以整体思路就是

1，先将zip上传到upload服务器

2，在upload服务器上解压zip。

3，在upload服务器上处理解压的文件（基本上都是json string）

4，通过接口调用将json string传入到接口中，进行数据库的操作

一、html

<input id="discoverImg" type="file" name="" class="layui-input">
<input type='button' class="layui-btn layui-btn-primary" onclick="getImg()" value='生成图片'></input>

二、JS

function getImg(){

var zipUpdate = $("#zipId")[0].files[0];
var formData = new FormData();

formData.append("zipFile",zipUpdate);

uploadZip(formData,callback);

}

function uploadZip(formData, callback){

$.ajax({
    url : '/uploadZip',
    method : 'POST',
    async: false,
    processData: false,
    contentType:false,
    data : formData,
    success : function(result) {
        callback(result)
    }
})

}

function callback(result){
    if(result.resultCode==1){
        var emojiName = $(".emojiName").val();
        // var emojiPath = $(".emojiPath").val();
        var emojiProfile = $(".emojiProfile").val();
        var emojiEveryName = $(".emojiEveryName").val();
        var emojiPath = JSON.stringify(result.data);//将data转化成json String
        Common.invoke({
            path : '/add',
            data : {
                'zipName':emojiName,
                'zipPath':emojiPath,//json String
                'zipProfile': emojiProfile,
                'nameStr' :emojiEveryName
            },
            successMsg : "",
            errorMsg : "",
            successCb : function(result) {
                
                }
            },
            errorCb : function(result) {
            }
        });
    }
}

三、Java、

 //一下代码主要是组装访问upload的request和解析结果

public static Map getUploadZipPath(String domain,MultipartFile multipartFile){
      String newUrl=null;
      Map mapImags = new HashMap();
      try {
         // 换行符
         final String newLine = "
";
         final String boundaryPrefix = "--";
         // 定义数据分隔线
         String BOUNDARY = "========7d4a6d158c9";
         // 服务器的域名
         URL url = new URL(domain+"/upload/UploadZipServlet");
         HttpURLConnection conn = (HttpURLConnection) url.openConnection();
         // 设置为POST情
         conn.setRequestMethod("POST");
         // 发送POST请求必须设置如下两行
         conn.setDoOutput(true);
         conn.setDoInput(true);
         conn.setUseCaches(false);
         // 设置请求头参数
         conn.setRequestProperty("connection", "Keep-Alive");
         conn.setRequestProperty("Charsert", "UTF-8");
         conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);
         OutputStream out = new DataOutputStream(conn.getOutputStream());
         // 上传文件
         String fileRealName = multipartFile.getOriginalFilename();//获得原始文件名;
         StringBuilder sb = new StringBuilder();
         sb.append(boundaryPrefix);
         sb.append(BOUNDARY);
         sb.append(newLine);
         // 文件参数,photo参数名可以随意修改
         sb.append("Content-Disposition: form-data;name="file";filename="" + fileRealName + """ + newLine);
         sb.append("Content-Type:application/octet-stream");
         // 参数头设置完以后需要两个换行，然后才是参数内容
         sb.append(newLine);
         sb.append(newLine);
         // 将参数头的数据写入到输出流中
         out.write(sb.toString().getBytes());
         // 数据输入流,用于读取文件数据
         DataInputStream in = new DataInputStream(multipartFile.getInputStream());
         byte[] bufferOut = new byte[1024];
         int bytes = 0;
         // 每次读1KB数据,并且将文件数据写入到输出流中
         while ((bytes = in.read(bufferOut)) != -1) {
            out.write(bufferOut, 0, bytes);
         }
         // 最后添加换行
         out.write(newLine.getBytes());
         in.close();
         // 定义最后数据分隔线，即--加上BOUNDARY再加上--。
         byte[] end_data = (newLine + boundaryPrefix + BOUNDARY + boundaryPrefix + newLine).getBytes();
         // 写上结尾标识
         out.write(end_data);
         out.flush();
         out.close();
//          定义BufferedReader输入流来读取URL的响应
         BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
         JSONObject resultObj = JSON.parseObject(reader.readLine());
         JSONObject resultData= resultObj.getJSONObject("data");
         if(null == resultData)
            throw new ServiceException("源文件不存在");
         JSONArray imagesData = resultData.getJSONArray("images");
         JSONArray imagesDataOthers = resultData.getJSONArray("zip");
         List zipImags = Lists.newArrayList();
         List zip = Lists.newArrayList();
         if (imagesData.size() > 0){
            for(int i = 0; i< imagesData.size(); i++){
               JSONObject imageData = imagesData.getJSONObject(i);
               String newUrlO = imageData.getString("oUrl");
               String newUrlT = imageData.getString("tUrl");
               System.out.println(" upload new Url =====>"+newUrlO);
               System.out.println(" upload new Url =====>"+newUrlT);
               newUrl = newUrlO + "," + newUrlT;
               zipImags.add(newUrl);
            }
            mapImags.put("imags",zipImags);
         }
         if(imagesDataOthers.size()>0){
            JSONObject imageDataOthers = imagesDataOthers.getJSONObject(0);
            String newUrlOthers = imageDataOthers.getString("oUrl");
            zip.add(newUrlOthers);
            mapImags.put("zip",zip);
         }

      } catch (Exception e) {
         System.out.println("发送POST请求出现异常！" + e);
         e.printStackTrace();
      }
      return mapImags;
   }
//以下主要是一个uploadZip的servlet，我传的是一些图片的zip压缩，而且图图片有压缩的也有原图。主要的步骤就是在下面，精华。。。。

@WebServlet("/upload/UploadZipServlet")
public class UploadZipServlet extends BaseServlet {
    private static final long serialVersionUID = 1L;

    public UploadZipServlet() {
        super();
    }

    @Override
    protected JMessage hander(HttpServletRequest request, HttpServletResponse response) {
        long start = System.currentTimeMillis();
        DiskFileItemFactory factory = new DiskFileItemFactory(1000 * 1024 * 1024, new File(getSystemConfig().getuTemp()));
        ServletFileUpload fileUpload = new ServletFileUpload(factory);
        List<FileItem> multipart = null;

        JMessage jMessage = null;
        int totalCount = 0;
        long userId = 0;
        double validTime = 0;
        try {
            multipart = fileUpload.parseRequest(request);
            for (FileItem item : multipart) {
                if (item.isFormField()) {
                    if ("validTime".equals(item.getFieldName())) {
                        try {
                            validTime = Double.valueOf(item.getString());
                        } catch (NumberFormatException e) {
                            validTime = new Double(-1);
                        }
                    }
                    if ("userId".equals(item.getFieldName())) {
                        userId = Long.parseLong(item.getString());
                    }
                } else {
                    if (item.getSize() > 0) {
                        totalCount++;
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        if (null == multipart) {
            jMessage = new JMessage(1020101, "表单解析失败");
        }
        else if (0 == totalCount) {
            jMessage = new JMessage(1010101, "缺少上传文件");
        }
        if (null != jMessage)
            return jMessage;
        jMessage = defHander(multipart, userId, validTime);

        int successCount = jMessage.getIntValue("success");
        jMessage.put("total", totalCount);
        jMessage.put("failure", totalCount - successCount);
        jMessage.put("time", System.currentTimeMillis() - start);

        return jMessage;
    }

    protected JMessage defHander(List<FileItem> multipart, long userId, double validTime) {
        JMessage jMessage = null;
        int successCount = 0;
        String oUrl = null;
        String tUrl = null;
        List<UploadItem> images = Lists.newArrayList();
        List<UploadItem> audios = Lists.newArrayList();
        List<UploadItem> videos = Lists.newArrayList();
        List<UploadItem> others = Lists.newArrayList();
        for (FileItem item : multipart) {
            UploadItem uploadItem;
            if (item.isFormField() || item.getSize() < 1)
                continue;
            String oFileName = item.getName();
            String formatName = ConfigUtils.getFormatName(oFileName);
            String newFileName = ConfigUtils.getName(oFileName);
            String fileName;
            if (!StringUtils.isEmpty(newFileName) && !newFileName.equals(oFileName)) {
                fileName = 32 == newFileName.length() ? oFileName : Joiner.on("").join(UUID.randomUUID().toString().replace("-", ""), ".", formatName);
            } else {
                fileName = oFileName;
            }
         /*String fileName = 32 == ConfigUtils.getName(oFileName).length() ? oFileName : Joiner.on("").join(UUID.randomUUID().toString().replace("-", ""), ".", formatName);*/
            FileType fileType = getFileType(formatName);
            File[] uploadPath = ConfigUtils.getUploadPath(userId, fileType);
            File oFile = new File(uploadPath[0], fileName);
            File tFile = new File(uploadPath[1], fileName);
            try {
                FileUtils.transfer(item.getInputStream(), oFile);
                 successCount++;
                 oUrl = getUrl(oFile);
                 if(ConfigUtils.getSystemConfig().isOsStatus()){
                    if (oUrl.contains(ConfigUtils.getSystemConfig().getDomain())){
                         String urlNewName = oUrl.replace(ConfigUtils.getSystemConfig().getDomain(),"");
                         String oUrlNew = FileOSUtil.uploadFile(oFile,urlNewName);
                         log("UploadServlet uploadEd OBS Other oUrl"+oUrlNew);
                         if (oUrlNew != null){
                              oUrl = oUrlNew;
                         }
                   }
                 }
                   uploadItem = new UploadItem(oFileName, oUrl,(byte) 1, null);
                   ResourcesDBUtils.saveFileUrl(1, oUrl, -1);
                   others.add(uploadItem);
                   log("UploadServlet uploadEd " + oUrl);
                    try {
                        ZipInputStream ZinO=new ZipInputStream(new FileInputStream(oFile.getPath()));
                        BufferedInputStream BinO=new BufferedInputStream(ZinO);
                        String ParentO=uploadPath[0].toString(); //输出路径（文件夹目录）
                        File fout=null;
                        ZipEntry entryO;
                        try {
                            while ((entryO = ZinO.getNextEntry()) != null && !entryO.isDirectory()) {
                                fout = new File(ParentO, entryO.getName());
                                if (!fout.exists()) {
                                     (new File(fout.getParent())).mkdirs();
                                 }
                                FileOutputStream outO = new FileOutputStream(fout);
                                BufferedOutputStream BoutO = new BufferedOutputStream(outO);
                                int b;
                                while ((b = BinO.read()) != -1) {
                                    BoutO.write(b);
                                }
                                BoutO.close();
                                outO.close();
                                System.out.println(fout + "解压成功");
                                FileInputStream fileInputStream = new FileInputStream(fout);
                                MultipartFile multipartFile = new MockMultipartFile(fout.getName(), fout.getName(), ContentType.APPLICATION_OCTET_STREAM.toString(), fileInputStream);
                                images =  uploadImg(images,multipartFile,userId,validTime);
                            }
                            BinO.close();
                            ZinO.close();
                        } catch (Exception e) {
                              e.printStackTrace();
                        }
                     } catch (FileNotFoundException e) {
                        e.printStackTrace();
                     }
                } catch (Exception e) {
                    e.printStackTrace();
                    uploadItem = new UploadItem(oFileName, null, (byte) 0, e.getMessage());
                    others.add(uploadItem);
                }
        }
        Map<String, Object> data = new HashMap<String, Object>();
        data.put("zip", others);
        data.put("images", images);
        jMessage = new JMessage(1, null, data);
        jMessage.put("success", successCount);
        return jMessage;

    }

    protected List<UploadItem> uploadImg(List<UploadItem> images,MultipartFile file, long userId, double validTime) {
        String oUrl = null;
        String tUrl = null;
        String oFileName = file.getName();
        String formatName = ConfigUtils.getFormatName(oFileName);
        String newFileName = ConfigUtils.getName(oFileName);
        String imgName;
        if (!StringUtils.isEmpty(newFileName) && !newFileName.equals(oFileName)) {
            imgName = 32 == newFileName.length() ? oFileName : Joiner.on("").join(UUID.randomUUID().toString().replace("-", ""), ".", formatName);
        } else {
            imgName = oFileName;
        }
        FileType imgType = getFileType(formatName);
        File[] uploadImgPath = ConfigUtils.getUploadPath(userId, imgType);
        File oFile = new File(uploadImgPath[0], imgName);
        File tFile = new File(uploadImgPath[1], imgName);
        UploadItem uploadItem;
        try {
            FileUtils.transfer(file.getInputStream(), oFile, tFile, formatName);
            oUrl = getUrl(oFile);
            tUrl = getUrl(tFile);
            if(ConfigUtils.getSystemConfig().isOsStatus()){
                if (oUrl.contains(ConfigUtils.getSystemConfig().getDomain())){
                    String urlNewName = oUrl.replace(ConfigUtils.getSystemConfig().getDomain(),"");
                    String oUrlNew = FileOSUtil.uploadFile(oFile,urlNewName);
                    log("UploadServlet uploadEd OBS oUrl "+oUrlNew);
                    if (oUrlNew != null){
                        oUrl = oUrlNew;
                    }
                }
                if (tUrl.contains(ConfigUtils.getSystemConfig().getDomain())){
                    String urlNewName = tUrl.replace(ConfigUtils.getSystemConfig().getDomain(),"");
                    String urlNew = FileOSUtil.uploadFile(tFile,urlNewName);
                    log("UploadServlet uploadEd OBS tUrl "+urlNew);
                    if (urlNew != null){
                        tUrl = urlNew;
                    }
                }
            }
            ResourcesDBUtils.saveFileUrl(1, oUrl, validTime);
            ResourcesDBUtils.saveFileUrl(1, tUrl, validTime);
            log("UploadServlet uploadEd " + oUrl);
            log("UploadServlet uploadEd " + tUrl);
            uploadItem = new UploadItem(oFileName, oUrl, tUrl, (byte) 1, null);
        } catch (Exception e) {
            e.printStackTrace();
            uploadItem = new UploadItem(oFileName, null, (byte) 0, e.getMessage());
        }
        images.add(uploadItem);
        return images;
    }
}

还有一个类，就是进行数据库的处理的接口
首先将json string转化成json object，之后自己就可以解析啦。。。

JSONObject json = JSONObject.parseObject(zipPath);
Map map = (Map)json;

进来售后说会出现有的zip可以上传有的不可以，就查了一下问题，报错是java.lang.IllegalArgumentException: MALFORMED
所以查了一下，说是编码的问题导致解压不成功。
参考一个博客 https://blog.csdn.net/guying4875/article/details/81034022

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.*;
import java.util.BitSet;

/**
 * @author 自动识别文件编码格式
 *
 */
public class EncodeUtil {
    private static Logger logger = LoggerFactory.getLogger(EncodeUtil.class);

    private static int BYTE_SIZE = 8;
    public static String CODE_UTF8 = "UTF-8";
    public static String CODE_UTF8_BOM = "UTF-8_BOM";
    public static String CODE_GBK = "GBK";

    /**
     * 通过文件全名称获取编码集名称
     *
     * @param fullFileName
     * @param ignoreBom
     * @return
     * @throws Exception
     */
    public static String getEncode(String fullFileName, boolean ignoreBom) throws Exception {
        logger.debug("fullFileName ; {}", fullFileName);
        BufferedInputStream bis = new BufferedInputStream(new FileInputStream(fullFileName));
        return getEncode(bis, ignoreBom);
    }

    /**
     * 通过文件缓存流获取编码集名称，文件流必须为未曾
     *
     * @param bis
     * @param ignoreBom 是否忽略utf-8 bom
     * @return
     * @throws Exception
     */
    public static String getEncode(BufferedInputStream bis, boolean ignoreBom) throws Exception {
        bis.mark(0);

        String encodeType = "未识别";
        byte[] head = new byte[3];
        bis.read(head);
        if (head[0] == -1 && head[1] == -2) {
            encodeType = "UTF-16";
        } else if (head[0] == -2 && head[1] == -1) {
            encodeType = "Unicode";
        } else if (head[0] == -17 && head[1] == -69 && head[2] == -65) { //带BOM
            if (ignoreBom) {
                encodeType = CODE_UTF8;
            } else {
                encodeType = CODE_UTF8_BOM;
            }
        } else if ("Unicode".equals(encodeType)) {
            encodeType = "UTF-16";
        } else if (isUTF8(bis)) {
            encodeType = CODE_UTF8;
        } else {
            encodeType = CODE_GBK;
        }
        logger.info("result encode type : " + encodeType);
        return encodeType;
    }

    /**
     * 是否是无BOM的UTF8格式，不判断常规场景，只区分无BOM UTF8和GBK
     *
     * @param bis
     * @return
     */
    private static boolean isUTF8( BufferedInputStream bis) throws Exception {
        bis.reset();

        //读取第一个字节
        int code = bis.read();
        do {
            BitSet bitSet = convert2BitSet(code);
            //判断是否为单字节
            if (bitSet.get(0)) {//多字节时，再读取N个字节
                if (!checkMultiByte(bis, bitSet)) {//未检测通过,直接返回
                    return false;
                }
            } else {
                //单字节时什么都不用做，再次读取字节
            }
            code = bis.read();
        } while (code != -1);
        return true;
    }

    /**
     * 检测多字节，判断是否为utf8，已经读取了一个字节
     *
     * @param bis
     * @param bitSet
     * @return
     */
    private static boolean checkMultiByte(BufferedInputStream bis, BitSet bitSet) throws Exception {
        int count = getCountOfSequential(bitSet);
        byte[] bytes = new byte[count - 1];//已经读取了一个字节，不能再读取
        bis.read(bytes);
        for (byte b : bytes) {
            if (!checkUtf8Byte(b)) {
                return false;
            }
        }
        return true;
    }

    /**
     * 检测单字节，判断是否为utf8
     *
     * @param b
     * @return
     */
    private static boolean checkUtf8Byte(byte b) throws Exception {
        BitSet bitSet = convert2BitSet(b);
        return bitSet.get(0) && !bitSet.get(1);
    }

    /**
     * 检测bitSet中从开始有多少个连续的1
     *
     * @param bitSet
     * @return
     */
    private static int getCountOfSequential( BitSet bitSet) {
        int count = 0;
        for (int i = 0; i < BYTE_SIZE; i++) {
            if (bitSet.get(i)) {
                count++;
            } else {
                break;
            }
        }
        return count;
    }


    /**
     * 将整形转为BitSet
     *
     * @param code
     * @return
     */
    private static BitSet convert2BitSet(int code) {
        BitSet bitSet = new BitSet(BYTE_SIZE);

        for (int i = 0; i < BYTE_SIZE; i++) {
            int tmp3 = code >> (BYTE_SIZE - i - 1);
            int tmp2 = 0x1 & tmp3;
            if (tmp2 == 1) {
                bitSet.set(i);
            }
        }
        return bitSet;
    }

    /**
     * 将一指定编码的文件转换为另一编码的文件
     *
     * @param oldFullFileName
     * @param oldCharsetName
     * @param newFullFileName
     * @param newCharsetName
     */
    public static void convert(String oldFullFileName, String oldCharsetName, String newFullFileName, String newCharsetName) throws Exception {
        logger.info("the old file name is : {}, The oldCharsetName is : {}", oldFullFileName, oldCharsetName);
        logger.info("the new file name is : {}, The newCharsetName is : {}", newFullFileName, newCharsetName);

        StringBuffer content = new StringBuffer();

        BufferedReader bin = new BufferedReader(new InputStreamReader(new FileInputStream(oldFullFileName), oldCharsetName));
        String line;
        while ((line = bin.readLine()) != null) {
            content.append(line);
            content.append(System.getProperty("line.separator"));
        }
        newFullFileName = newFullFileName.replace("\", "/");
        File dir = new File(newFullFileName.substring(0, newFullFileName.lastIndexOf("/")));
        if (!dir.exists()) {
            dir.mkdirs();
        }
        Writer out = new OutputStreamWriter(new FileOutputStream(newFullFileName), newCharsetName);
        out.write(content.toString());
    }

}

String fileEncode = EncodeUtil.getEncode(oFile.getPath(),false);
ZipInputStream ZinO=new ZipInputStream(new FileInputStream(oFile.getPath()), Charset.forName(fileEncode));

最后解决。