package org.jeecg.common.system.base.controller;
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import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
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import com.baomidou.mybatisplus.core.metadata.IPage;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import com.baomidou.mybatisplus.extension.service.IService;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.commons.beanutils.PropertyUtils;
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import org.apache.shiro.SecurityUtils;
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import org.jeecg.common.api.vo.Result;
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import org.jeecg.common.system.query.QueryGenerator;
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import org.jeecg.common.system.vo.LoginUser;
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import org.jeecg.common.util.oConvertUtils;
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import org.jeecgframework.poi.excel.ExcelImportUtil;
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import org.jeecgframework.poi.excel.def.NormalExcelConstants;
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import org.jeecgframework.poi.excel.entity.ExportParams;
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import org.jeecgframework.poi.excel.entity.ImportParams;
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import org.jeecgframework.poi.excel.entity.enmus.ExcelType;
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import org.jeecgframework.poi.excel.view.JeecgEntityExcelView;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.web.multipart.MultipartFile;
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import org.springframework.web.multipart.MultipartHttpServletRequest;
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import org.springframework.web.servlet.ModelAndView;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.IOException;
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import java.util.*;
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import java.util.stream.Collectors;
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/**
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* @Description: Controller基类
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* @Author: dangzhenghui@163.com
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* @Date: 2019-4-21 8:13
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* @Version: 1.0
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*/
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@Slf4j
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public class JeecgController<T, S extends IService<T>> {
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//issues/2933 JeecgController注入service时改用protected修饰，能避免重复引用service
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@Autowired
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protected S service;
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@Value("${jeecg.path.upload}")
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private String upLoadPath;
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/**
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* 导出excel
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*
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* @param request
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*/
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protected ModelAndView exportXls(HttpServletRequest request, T object, Class<T> clazz, String title) {
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// Step.1 组装查询条件
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QueryWrapper<T> queryWrapper = QueryGenerator.initQueryWrapper(object, request.getParameterMap());
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LoginUser sysUser = (LoginUser) SecurityUtils.getSubject().getPrincipal();
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// Step.2 获取导出数据
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List<T> pageList = service.list(queryWrapper);
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List<T> exportList = null;
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// 过滤选中数据
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String selections = request.getParameter("selections");
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if (oConvertUtils.isNotEmpty(selections)) {
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List<String> selectionList = Arrays.asList(selections.split(","));
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exportList = pageList.stream().filter(item -> selectionList.contains(getId(item))).collect(Collectors.toList());
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} else {
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exportList = pageList;
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}
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// Step.3 AutoPoi 导出Excel
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ModelAndView mv = new ModelAndView(new JeecgEntityExcelView());
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mv.addObject(NormalExcelConstants.FILE_NAME, title); //此处设置的filename无效 ,前端会重更新设置一下
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mv.addObject(NormalExcelConstants.CLASS, clazz);
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//update-begin--Author:liusq Date:20210126 for：图片导出报错，ImageBasePath未设置--------------------
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ExportParams exportParams=new ExportParams(title + "报表", "导出人:" + sysUser.getRealname(), title);
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exportParams.setImageBasePath(upLoadPath);
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//update-end--Author:liusq Date:20210126 for：图片导出报错，ImageBasePath未设置----------------------
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mv.addObject(NormalExcelConstants.PARAMS,exportParams);
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mv.addObject(NormalExcelConstants.DATA_LIST, exportList);
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return mv;
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}
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/**
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* 根据每页sheet数量导出多sheet
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*
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* @param request
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* @param object 实体类
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* @param clazz 实体类class
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* @param title 标题
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* @param exportFields 导出字段自定义
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* @param pageNum 每个sheet的数据条数
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* @param request
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*/
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protected ModelAndView exportXlsSheet(HttpServletRequest request, T object, Class<T> clazz, String title,String exportFields,Integer pageNum) {
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// Step.1 组装查询条件
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QueryWrapper<T> queryWrapper = QueryGenerator.initQueryWrapper(object, request.getParameterMap());
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LoginUser sysUser = (LoginUser) SecurityUtils.getSubject().getPrincipal();
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// Step.2 计算分页sheet数据
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double total = service.count();
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int count = (int)Math.ceil(total/pageNum);
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// Step.3 多sheet处理
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List<Map<String, Object>> listMap = new ArrayList<Map<String, Object>>();
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for (int i = 1; i <=count ; i++) {
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Page<T> page = new Page<T>(i, pageNum);
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IPage<T> pageList = service.page(page, queryWrapper);
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List<T> records = pageList.getRecords();
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List<T> exportList = null;
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// 过滤选中数据
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String selections = request.getParameter("selections");
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if (oConvertUtils.isNotEmpty(selections)) {
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List<String> selectionList = Arrays.asList(selections.split(","));
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exportList = records.stream().filter(item -> selectionList.contains(getId(item))).collect(Collectors.toList());
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} else {
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exportList = records;
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}
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Map<String, Object> map = new HashMap<String, Object>();
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ExportParams exportParams=new ExportParams(title + "报表", "导出人:" + sysUser.getRealname(), title+i,upLoadPath);
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exportParams.setType(ExcelType.XSSF);
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//map.put("title",exportParams);//表格Title
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map.put(NormalExcelConstants.PARAMS,exportParams);//表格Title
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map.put(NormalExcelConstants.CLASS,clazz);//表格对应实体
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map.put(NormalExcelConstants.DATA_LIST, exportList);//数据集合
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listMap.add(map);
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}
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// Step.4 AutoPoi 导出Excel
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ModelAndView mv = new ModelAndView(new JeecgEntityExcelView());
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mv.addObject(NormalExcelConstants.FILE_NAME, title); //此处设置的filename无效 ,前端会重更新设置一下
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mv.addObject(NormalExcelConstants.MAP_LIST, listMap);
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return mv;
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}
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/**
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* 根据权限导出excel，传入导出字段参数
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*
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* @param request
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*/
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protected ModelAndView exportXls(HttpServletRequest request, T object, Class<T> clazz, String title,String exportFields) {
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ModelAndView mv = this.exportXls(request,object,clazz,title);
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mv.addObject(NormalExcelConstants.EXPORT_FIELDS,exportFields);
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return mv;
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}
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/**
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* 获取对象ID
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*
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* @return
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*/
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private String getId(T item) {
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try {
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return PropertyUtils.getProperty(item, "id").toString();
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} catch (Exception e) {
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e.printStackTrace();
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return null;
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}
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}
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/**
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* 通过excel导入数据
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*
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* @param request
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* @param response
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* @return
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*/
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protected Result<?> importExcel(HttpServletRequest request, HttpServletResponse response, Class<T> clazz) {
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MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
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Map<String, MultipartFile> fileMap = multipartRequest.getFileMap();
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for (Map.Entry<String, MultipartFile> entity : fileMap.entrySet()) {
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MultipartFile file = entity.getValue();// 获取上传文件对象
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ImportParams params = new ImportParams();
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params.setTitleRows(2);
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params.setHeadRows(1);
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params.setNeedSave(true);
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try {
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List<T> list = ExcelImportUtil.importExcel(file.getInputStream(), clazz, params);
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//update-begin-author:taoyan date:20190528 for:批量插入数据
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long start = System.currentTimeMillis();
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service.saveBatch(list);
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//400条 saveBatch消耗时间1592毫秒 循环插入消耗时间1947毫秒
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//1200条 saveBatch消耗时间3687毫秒 循环插入消耗时间5212毫秒
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log.info("消耗时间" + (System.currentTimeMillis() - start) + "毫秒");
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//update-end-author:taoyan date:20190528 for:批量插入数据
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return Result.ok("文件导入成功！数据行数：" + list.size());
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} catch (Exception e) {
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log.error(e.getMessage(), e);
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return Result.error("文件导入失败:" + e.getMessage());
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} finally {
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try {
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file.getInputStream().close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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return Result.error("文件导入失败！");
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}
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}
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