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===========================
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EasyPoi Excel和 Word简易工具类
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===========================
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easypoi功能如同名字easy,主打的功能就是易容,让一个没见接触过poi的人员
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就可以方便的写出Excel导出,Excel模板导出,Excel导入,Word模板导出,通过简单的注解和模板
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语言(熟悉的表达式语法),完成以前复杂的写法
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作者博客:http://blog.csdn.net/qjueyue
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作者邮箱: qrb.jueyue@gmail.com
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---------------------------
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EasyPoi的主要特点
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--------------------------
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1.设计精巧,使用简单
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2.接口丰富,扩展简单
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3.默认值多,write less do more
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4.AbstractView 支持,web导出可以简单明了
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---------------------------
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EasyPoi的几个入口工具类
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---------------------------
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1.ExcelExportUtil Excel导出(普通导出,模板导出)
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2.ExcelImportUtil Excel导入
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3.WordExportUtil Word导出(只支持docx ,doc版本poi存在图片的bug,暂不支持)
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---------------------------
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关于Excel导出XLS和XLSX区别
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---------------------------
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1.导出时间XLS比XLSX快2-3倍
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2.导出大小XLS是XLSX的2-3倍或者更多
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3.导出需要综合网速和本地速度做考虑^~^
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--------------------------
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版本修改
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--------------------------
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- 2.0.6-release
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- 修复导入的自定义格式异常
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- 修复导入的BigDecimal不识别
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- 导出大数据替换为SXSSFWorkbook,提高07版本Excel导出效率
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- 根据sonar的提示,修复编码格式问题
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- 做了更加丰富的测试
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- word 导出的优化
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- 2.0.6-SNAPSHOT
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- 增加map的导出
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- 增加index 列
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---------------------------
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EasyPoi 文档
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这几篇是旧的教程,不过和现在大同小异
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[Excel 介绍篇](http://note.youdao.com/share/?id=ea5166076313d437abbfb28a18d85486&type=note)
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[Excel 工具类](http://note.youdao.com/share/?id=dcfef5355d1d75b718be8fd563ad5216&type=note)
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[Excel 注解介绍.第一篇](http://note.youdao.com/share/?id=9898d1777ca97b81d82a6e151b880dbb&type=note)
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[Excel 注解介绍.第二篇](http://note.youdao.com/share/?id=9898d1777ca97b81d82a6e151b880dbb&type=note)
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[Excel 实体类](http://note.youdao.com/share/?id=dab97eababf8e91356f87be204b581e8&type=note)
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[Word模板导出教程](http://note.youdao.com/share/?id=26794c8eb4a285828663178c0ae854a2&type=note)
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后面都是新的了
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[EasyPoi-在财务报表中的应用](http://git.oschina.net/jueyue/easypoi/wikis/EasyPoi-%E5%9C%A8%E8%B4%A2%E5%8A%A1%E6%8A%A5%E8%A1%A8%E4%B8%AD%E7%9A%84%E5%BA%94%E7%94%A8)
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[EasyPoi-如何筛选导出属性](http://git.oschina.net/jueyue/easypoi/wikis/EasyPoi-%E5%A6%82%E4%BD%95%E7%AD%9B%E9%80%89%E5%AF%BC%E5%87%BA%E5%B1%9E%E6%80%A7)
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---------------------------
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EasyPoi导出实例
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1.注解,导入导出都是基于注解的,实体上做上注解,标示导出对象,同时可以做一些操作
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```Java
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@ExcelTarget("courseEntity")
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public class CourseEntity implements java.io.Serializable {
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/** 主键 */
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private String id;
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/** 课程名称 */
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@Excel(name = "课程名称", orderNum = "1", needMerge = true)
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private String name;
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/** 老师主键 */
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@ExcelEntity(id = "yuwen")
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@ExcelVerify()
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private TeacherEntity teacher;
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/** 老师主键 */
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@ExcelEntity(id = "shuxue")
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private TeacherEntity shuxueteacher;
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@ExcelCollection(name = "选课学生", orderNum = "4")
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private List<StudentEntity> students;
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```
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2.基础导出
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传入导出参数,导出对象,以及对象列表即可完成导出
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```Java
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HSSFWorkbook workbook = ExcelExportUtil.exportExcel(new ExportParams(
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"2412312", "测试", "测试"), CourseEntity.class, list);
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```
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3.基础导出,带有索引
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在到处参数设置一个值,就可以在导出列增加索引
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```Java
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ExportParams params = new ExportParams("2412312", "测试", "测试");
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params.setAddIndex(true);
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HSSFWorkbook workbook = ExcelExportUtil.exportExcel(params,
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TeacherEntity.class, telist);
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```
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4.导出Map
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创建类似注解的集合,即可完成Map的导出,略有麻烦
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```Java
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List<ExcelExportEntity> entity = new ArrayList<ExcelExportEntity>();
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entity.add(new ExcelExportEntity("姓名", "name"));
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entity.add(new ExcelExportEntity("性别", "sex"));
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List<Map<String, String>> list = new ArrayList<Map<String, String>>();
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Map<String, String> map;
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for (int i = 0; i < 10; i++) {
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map = new HashMap<String, String>();
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map.put("name", "1" + i);
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map.put("sex", "2" + i);
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list.add(map);
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}
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HSSFWorkbook workbook = ExcelExportUtil.exportExcel(new ExportParams(
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"测试", "测试"), entity, list);
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```
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5.模板导出
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根据模板配置,完成对应导出
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```Java
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TemplateExportParams params = new TemplateExportParams();
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params.setHeadingRows(2);
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params.setHeadingStartRow(2);
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Map<String,Object> map = new HashMap<String, Object>();
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map.put("year", "2013");
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map.put("sunCourses", list.size());
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Map<String,Object> obj = new HashMap<String, Object>();
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map.put("obj", obj);
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obj.put("name", list.size());
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params.setTemplateUrl("org/jeecgframework/poi/excel/doc/exportTemp.xls");
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Workbook book = ExcelExportUtil.exportExcel(params, CourseEntity.class, list,
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map);
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```
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6.导入
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设置导入参数,传入文件或者流,即可获得相应的list
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```Java
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ImportParams params = new ImportParams();
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params.setTitleRows(2);
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params.setHeadRows(2);
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//params.setSheetNum(9);
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params.setNeedSave(true);
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long start = new Date().getTime();
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List<CourseEntity> list = ExcelImportUtil.importExcel(new File(
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"d:/tt.xls"), CourseEntity.class, params);
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```
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7.和spring mvc的无缝融合
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简单几句话,Excel导出搞定
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```Java
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@RequestMapping(params = "exportXls")
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public String exportXls(CourseEntity course,HttpServletRequest request,HttpServletResponse response
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, DataGrid dataGrid,ModelMap map) {
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CriteriaQuery cq = new CriteriaQuery(CourseEntity.class, dataGrid);
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org.jeecgframework.core.extend.hqlsearch.HqlGenerateUtil.installHql(cq, course, request.getParameterMap());
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List<CourseEntity> courses = this.courseService.getListByCriteriaQuery(cq,false);
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map.put(NormalExcelConstants.FILE_NAME,"用户信息");
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map.put(NormalExcelConstants.CLASS,CourseEntity.class);
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map.put(NormalExcelConstants.PARAMS,new ExportParams("课程列表", "导出人:Jeecg",
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"导出信息"));
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map.put(NormalExcelConstants.DATA_LIST,courses);
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return NormalExcelConstants.JEECG_EXCEL_VIEW;
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}
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``` |