package com.lf.server.service.all;
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import com.alibaba.fastjson.JSON;
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import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
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import com.lf.server.controller.all.BaseController;
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import com.lf.server.entity.all.*;
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import com.lf.server.entity.ctrl.KeyValueEntity;
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import com.lf.server.entity.data.MetaEntity;
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import com.lf.server.entity.data.MetaFileEntity;
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import com.lf.server.entity.sys.AttachEntity;
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import com.lf.server.entity.sys.UserEntity;
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import com.lf.server.helper.*;
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import com.lf.server.mapper.all.BasicMapper;
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import com.lf.server.service.sys.AttachService;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import org.springframework.web.multipart.MultipartFile;
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import javax.servlet.http.HttpServletResponse;
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import java.io.File;
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import java.lang.reflect.Field;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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/**
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* 上传附件服务类
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* @author WWW
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*/
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@Service
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public class UploadAttachService {
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@Autowired
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PathHelper pathHelper;
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@Autowired
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AttachService attachService;
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private static String tabs = "''";
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private final static Map<String, String> ATTACH_TABS = new HashMap<>();
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private final static Log log = LogFactory.getLog(UploadAttachService.class);
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/**
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* 获取表名
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*/
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public static String getTabs() {
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return tabs;
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}
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/**
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* 初始化附件表
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*/
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public static void init(String cfg) {
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if (StringHelper.isEmpty(cfg)) {
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return;
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}
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String[] strs = cfg.split(StaticData.COMMA);
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if (strs.length == 0) {
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return;
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}
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List<String> keys = new ArrayList<>();
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for (String str : strs) {
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if (ATTACH_TABS.containsKey(str)) {
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continue;
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}
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ATTACH_TABS.put(str, str.contains("bd.") ? "materiname" : "photono");
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keys.add("'" + str + "'");
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}
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tabs = StringHelper.join(keys, ",");
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}
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/**
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* 上传文件
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*/
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public ResponseMsg<String> upload(UserEntity ue, String tab, MultipartFile file, BaseController ctrl) {
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try {
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if (file == null && file.isEmpty()) {
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return ctrl.fail("文件上传为空", null);
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}
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if (file.getSize() > SettingData.MAX_FILE_SIZE) {
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return ctrl.fail(String.format("文件大于 %d MB", SettingData.MAX_FILE_SIZE / 1024 / 1024), null);
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}
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// 传输文件
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String oldName = file.getOriginalFilename();
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String filePath = pathHelper.getTempPath() + File.separator + oldName;
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File newFile = new File(filePath);
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file.transferTo(newFile);
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double sizes = FileHelper.sizeToMb(file.getSize());
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// 获取MD5
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String md5 = FileHelper.getFileMd5(filePath);
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AttachEntity entity = attachService.selectByGuid(md5);
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if (entity != null) {
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newFile.delete();
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return ctrl.success("文件已存在", md5);
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}
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AttachEntity ae = getAttachEntity(ue, tab, oldName, md5, sizes);
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String targetPath = pathHelper.getConfig().getUploadPath() + File.separator + ae.getPath();
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newFile.renameTo(new File(targetPath));
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int rows = attachService.insert(ae);
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return rows > 0 ? ctrl.success(md5) : ctrl.fail("保存文件失败", null);
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} catch (Exception ex) {
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return ctrl.fail(ex.getMessage(), null);
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}
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}
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/**
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* 获取附件实体类
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*/
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protected AttachEntity getAttachEntity(UserEntity ue, String tab, String oldName, String md5, double sizes) {
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AttachEntity entity = new AttachEntity();
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entity.setName(oldName);
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entity.setTab(tab);
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entity.setGuid(md5);
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String subPath = PathHelper.getUploadPath() + File.separator + md5 + FileHelper.getExtension(oldName);
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entity.setPath(subPath);
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entity.setSizes(sizes);
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if (ue != null) {
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entity.setCreateUser(ue.getId());
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}
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return entity;
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}
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/**
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* 下载文件
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*/
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public void download(String guid, HttpServletResponse res) {
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download(guid, false, res);
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}
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/**
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* 下载文件
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*/
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public void download(String guid, boolean inline, HttpServletResponse res) {
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try {
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if (StringHelper.isEmpty(guid)) {
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WebHelper.writeStr2Page(res, StaticData.NO_FILE);
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return;
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}
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AttachEntity entity = attachService.selectByGuid(guid);
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if (entity == null) {
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WebHelper.writeStr2Page(res, StaticData.NO_FILE);
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return;
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}
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String filePath = pathHelper.getConfig().getUploadPath() + File.separator + entity.getPath();
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File file = new File(filePath);
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if (!file.exists() || file.isDirectory()) {
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WebHelper.writeJson2Page(res, "文件不存在");
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}
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WebHelper.download(filePath, entity.getName(), inline, res);
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} catch (Exception ex) {
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WebHelper.writeJson2Page(res, "文件下载出错");
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log.error(ex.getMessage(), ex);
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}
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}
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/**
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* 上传Excel附件
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*/
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public List<KeyValueEntity> uploadXlsAnnex(UserEntity ue, List<MetaEntity> ms, List<MetaFileEntity> list, String path) {
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List<String> files = getAttachFiles(list, path);
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if (files.size() == 0) {
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return null;
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}
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List<KeyValueEntity> rs = new ArrayList<>();
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for (MetaEntity meta : ms) {
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int rows = uploadXlsAnnex(ue, meta, files);
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rs.add(new KeyValueEntity(meta.getName(), String.valueOf(rows)));
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}
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return rs;
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}
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/**
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* 获取附件文件
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*/
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private List<String> getAttachFiles(List<MetaFileEntity> list, String path) {
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List<String> files = new ArrayList<>();
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for (MetaFileEntity mf : list) {
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if (mf.getName().contains(StaticData.ZIP)) {
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List<String> subs = getZipFiles(mf, path);
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if (null != subs && subs.size() > 0) {
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files.addAll(subs);
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}
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continue;
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}
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files.add(mf.getPath());
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}
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return files;
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}
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/**
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* 获取zip中的文件
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*/
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private List<String> getZipFiles(MetaFileEntity mf, String path) {
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File file = new File(mf.getPath());
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if (!file.exists() || file.isDirectory()) {
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return null;
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}
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File zipFolder = new File(pathHelper.getConfig().getTempPath() + File.separator + path + "_zip");
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if (!zipFolder.exists() || !zipFolder.isDirectory()) {
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zipFolder.mkdirs();
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}
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String subPath = zipFolder + File.separator + mf.getName().toLowerCase().replace(".zip", "");
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ZipHelper.unzip(mf.getPath(), subPath);
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List<String> files = new ArrayList<>();
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getFilesByPath(files, subPath);
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return files;
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}
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/**
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* 根据路径获取文件
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*/
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private void getFilesByPath(List<String> list, String path) {
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File file = new File(path);
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if (!file.isDirectory()) {
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list.add(file.getPath());
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return;
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}
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File[] files = file.listFiles();
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if (null == files) {
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return;
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}
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for (File f : files) {
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if (f.isDirectory()) {
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getFilesByPath(list, f.getPath());
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} else {
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list.add(f.getPath());
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}
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}
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}
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/**
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* 上传Excel附件
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*/
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private int uploadXlsAnnex(UserEntity ue, MetaEntity meta, List<String> files) {
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List<?> list = queryXlsData(meta);
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if (null == list || list.size() == 0) {
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return 0;
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}
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Field field = getAnnexField(list.get(0), meta);
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String folder = meta.getName().split("\\.")[0].trim().toLowerCase() + File.separator;
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int rows = 0;
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for (Object obj : list) {
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String name = getAnnexName(obj, field);
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if (StringHelper.isEmpty(name)) {
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continue;
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}
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String file = findAnnexFile(name, folder, files);
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if (null == file) {
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continue;
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}
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BaseEntity be = (BaseEntity) obj;
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rows += insertXlsAnnex(ue, meta, be, file);
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files.remove(file);
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}
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return rows;
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}
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/**
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* 查询Excel数据
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*/
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private List<?> queryXlsData(MetaEntity meta) {
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String entity = meta.getTab().substring(meta.getTab().indexOf(".") + 1).replace("_", "").toLowerCase();
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BasicMapper basicMapper = ClassHelper.getBasicMapper(entity);
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if (null == basicMapper) {
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return null;
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}
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QueryWrapper wrapper = new QueryWrapper();
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wrapper.eq("parentid", meta.getEventid());
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List<?> list = basicMapper.selectList(wrapper);
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if (null == list || list.size() == 0) {
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return null;
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}
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if (!(list.get(0) instanceof BaseEntity)) {
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return null;
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}
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return list;
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}
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/**
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* 获取附件字段
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*/
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private Field getAnnexField(Object obj, MetaEntity meta) {
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try {
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String str = ATTACH_TABS.get(meta.getTab());
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Field field = obj.getClass().getDeclaredField(str);
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field.setAccessible(true);
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return field;
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} catch (Exception ex) {
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return null;
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}
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}
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/**
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* 获取附件名称
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*/
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private String getAnnexName(Object obj, Field field) {
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try {
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Object val = field.get(obj);
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return null == val ? null : val.toString().trim();
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} catch (Exception ex) {
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return null;
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}
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}
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/**
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* 查找附件文件
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*/
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private String findAnnexFile(String name, String folder, List<String> files) {
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name = File.separator + name.split("\\.")[0].trim().toLowerCase();
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for (String file : files) {
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if (file.toLowerCase().contains(folder) && file.toLowerCase().contains(name)) {
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return file;
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}
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}
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for (String file : files) {
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if (file.toLowerCase().contains(name)) {
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return file;
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}
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}
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return null;
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}
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/**
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* 插入Excel附件
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*/
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private int insertXlsAnnex(UserEntity ue, MetaEntity meta, BaseEntity be, String file) {
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File f = new File(file);
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if (!f.exists() || f.isDirectory()) {
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return 0;
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}
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String md5 = FileHelper.getFileMd5(file);
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AttachEntity old = attachService.selectByTabAndGuid(meta.getTab(), be.getEventid(), md5);
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if (null != old) {
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f.delete();
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return 0;
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}
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String fileName = FileHelper.getFileName(file);
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double sizes = FileHelper.sizeToMb(f.length());
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AttachEntity ae = getAttachEntity(ue, meta.getTab(), be.getEventid(), fileName, md5, sizes);
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String targetPath = pathHelper.getConfig().getUploadPath() + File.separator + ae.getPath();
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f.renameTo(new File(targetPath));
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int rows = attachService.insert(ae);
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return rows > 0 ? 1 : 0;
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}
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/**
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* 获取附件实体类
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*/
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protected AttachEntity getAttachEntity(UserEntity ue, String tabName, String eventid, String fileName, String md5, double sizes) {
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AttachEntity entity = new AttachEntity();
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entity.setTab(tabName);
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entity.setTabGuid(eventid);
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entity.setName(fileName);
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entity.setGuid(md5);
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String subPath = PathHelper.getUploadPath() + File.separator + md5 + FileHelper.getExtension(fileName);
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entity.setPath(subPath);
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entity.setSizes(sizes);
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if (ue != null) {
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entity.setCreateUser(ue.getId());
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}
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return entity;
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}
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}
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