标签：文件上传 怎样 访问 exists list fun fileutils 出现 for
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 = "\r\n";
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;
标签：文件上传 怎样 访问 exists list fun fileutils 出现 for
原文地址：https://www.cnblogs.com/echo777/p/11311180.html
