EasyPoi快速 Office、PDF 开发工具
easypoi 功能如同名字 easy，主打的功能就是容易，让一个没见接触过 poi 的人员可以方便地写出 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语言(熟悉的表达式语法)，完成以前复杂的写法。
EasyPoi的主要特点
- 设计精巧,使用简单
- 接口丰富,扩展简单
- 默认值多,write less do more
- AbstractView 支持,web导出可以简单明了
EasyPoi的几个入口工具类
1.ExcelExportUtil Excel导出(普通导出,模板导出) 2.ExcelImportUtil Excel导入 3.WordExportUtil Word导出(只支持docx ,doc版本poi存在图片的bug,暂不支持)
EasyPoi导出实例
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
@ExcelTarget("courseEntity")
public class CourseEntity implements java.io.Serializable {
/** 主键 */
private String id;
/** 课程名称 */
@Excel(name = "课程名称", orderNum = "1", needMerge = true)
private String name;
/** 老师主键 */
@ExcelEntity(id = "yuwen")
@ExcelVerify()
private TeacherEntity teacher;
/** 老师主键 */
@ExcelEntity(id = "shuxue")
private TeacherEntity shuxueteacher;
@ExcelCollection(name = "选课学生", orderNum = "4")
private List students;
2.基础导出 传入导出参数,导出对象,以及对象列表即可完成导出
HSSFWorkbook workbook = ExcelExportUtil.exportExcel(new ExportParams( "2412312", "测试", "测试"), CourseEntity.class, list);
3.基础导出,带有索引 在到处参数设置一个值,就可以在导出列增加索引
ExportParams params = new ExportParams("2412312", "测试", "测试");
params.setAddIndex(true);
HSSFWorkbook workbook = ExcelExportUtil.exportExcel(params,
TeacherEntity.class, telist);
4.导出Map 创建类似注解的集合,即可完成Map的导出,略有麻烦
List entity = new ArrayList();
entity.add(new ExcelExportEntity("姓名", "name"));
entity.add(new ExcelExportEntity("性别", "sex"));
List> list = new ArrayList>();
Map map;
for (int i = 0; i < 10; i++) {
map = new HashMap();
map.put("name", "1" + i);
map.put("sex", "2" + i);
list.add(map);
}
HSSFWorkbook workbook = ExcelExportUtil.exportExcel(new ExportParams(
"测试", "测试"), entity, list);
5.模板导出 根据模板配置,完成对应导出
TemplateExportParams params = new TemplateExportParams();
params.setHeadingRows(2);
params.setHeadingStartRow(2);
Map map = new HashMap();
map.put("year", "2013");
map.put("sunCourses", list.size());
Map obj = new HashMap();
map.put("obj", obj);
obj.put("name", list.size());
params.setTemplateUrl("org/jeecgframework/poi/excel/doc/exportTemp.xls");
Workbook book = ExcelExportUtil.exportExcel(params, CourseEntity.class, list,
map);
6.导入 设置导入参数,传入文件或者流,即可获得相应的list
ImportParams params = new ImportParams(); params.setTitleRows(2); params.setHeadRows(2); //params.setSheetNum(9); params.setNeedSave(true); long start = new Date().getTime(); List list = ExcelImportUtil.importExcel(new File( "d:/tt.xls"), CourseEntity.class, params);
7.和spring mvc的无缝融合 简单几句话,Excel导出搞定
@RequestMapping(params = "exportXls")
public String exportXls(CourseEntity course,HttpServletRequest request,HttpServletResponse response
, DataGrid dataGrid,ModelMap map) {
CriteriaQuery cq = new CriteriaQuery(CourseEntity.class, dataGrid);
org.jeecgframework.core.extend.hqlsearch.HqlGenerateUtil.installHql(cq, course, request.getParameterMap());
List courses = this.courseService.getListByCriteriaQuery(cq,false);
map.put(NormalExcelConstants.FILE_NAME,"用户信息");
map.put(NormalExcelConstants.CLASS,CourseEntity.class);
map.put(NormalExcelConstants.PARAMS,new ExportParams("课程列表", "导出人:Jeecg",
"导出信息"));
map.put(NormalExcelConstants.DATA_LIST,courses);
return NormalExcelConstants.JEECG_EXCEL_VIEW;
}
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