用poi導出Excel表格，需要配置很多東西，也比較麻煩，這里使用poi的封裝easypoi，可以快速配置，實現Excel或者word文件的導出。這里我們結合SpringMVC開發easypoi。

1，導入以下3個.jar包:這里是springMVC和easypoi所需的jar包，主要是easypoi-base和easypoi-web，其它都是關聯所需的jar包，我們需要commons-lang3.jar包，開始使用commons-lang2.6版本會出現錯誤。

2，spring-mvc.xml配置如下：

class="org.springframework.web.servlet.view.BeanNameViewResolver"?p:order="0">

1.ExcelExportUtil?Excel導出(普通導出,模板導出)

2.ExcelImportUtil?Excel導入

3.WordExportUtil?Word導出(只支持docx?,doc版本poi

3 Controller

導入方式，可以根據映射關系，通過注解，字段名符合導入，如下例

public?class?RechannelreportEntity?implements?java.io.Serializable?{

/**id*/

private?java.lang.Integer?id;

/**amount*/

@Excel(name="amount")

private?java.lang.Integer?amount;

/**amounts*/

@Excel(name="amounts")

private?java.lang.Integer?amounts;

/**counts*/

@Excel(name="counts")

private?java.lang.Integer?counts;

/**date*/

@Excel(name="date",format?=?"yyyy-MM-dd")

private?java.util.Date?date;

/**username*/

.......

@SuppressWarnings("unchecked")

@RequestMapping(params?=?"importExcel",?method?=?RequestMethod.POST)

@ResponseBody

public?AjaxJson?importExcel(HttpServletRequest?request,?HttpServletResponse?response)?{

AjaxJson?j?=?new?AjaxJson();

MultipartHttpServletRequest?multipartRequest?=?(MultipartHttpServletRequest)?request;

Map?fileMap?=?multipartRequest.getFileMap();

for?(Map.Entry?entity?:?fileMap.entrySet())?{

MultipartFile?file?=?entity.getValue();//?獲取上傳文件對象

ImportParams?params?=?new?ImportParams();

params.setTitleRows(2);

params.setHeadRows(1);

params.setNeedSave(true);

try?{

List?listRechannelreportEntitys?=?ExcelImportUtil.importExcel(file.getInputStream(),RechannelreportEntity.class,params);

for?(RechannelreportEntity?rechannelreport?:?listRechannelreportEntitys)?{

rechannelreportService.save(rechannelreport);

}

j.setMsg("文件導入成功！");

}?catch?(Exception?e)?{

j.setMsg("文件導入失敗！");

logger.error(ExceptionUtil.getExceptionMessage(e));

}finally{

try?{

file.getInputStream().close();

}?catch?(IOException?e)?{

e.printStackTrace();

}

}

}

return?j;

導出方式一，可以自定義輸出字段，并賦值

@RequestMapping(params?=?"exportXls2")

public?String?string2(RechannelreportEntity?rechannelreport,HttpServletRequest?request,HttpServletResponse?response

,?DataGrid?dataGrid,ModelMap?modelMap)?{

//"&&searchColums=&undefined=&sqlbuilder=&username=CL007&date_begin=2017-01-17&date_end=2017-01-17"

List?entityList?=?new?ArrayList();

entityList.add(new?ExcelExportEntity("日期",?"cou1",?15));

entityList.add(new?ExcelExportEntity("渠道號",?"cou2",?15));

entityList.add(new?ExcelExportEntity("原始金額",?"cou3",?15));

entityList.add(new?ExcelExportEntity("扣量金額",?"cou4",?15));

entityList.add(new?ExcelExportEntity("結算金額",?"cou5",?15));

//這邊的getData2?方法是對?MapExcelConstants.MAP_LIST進行賦值

List>?dataResult?=?getData2(getDateGrid(rechannelreport,?request));

modelMap.put(MapExcelConstants.ENTITY_LIST,?entityList);

modelMap.put(MapExcelConstants.MAP_LIST,?dataResult);

modelMap.put(MapExcelConstants.FILE_NAME,?DateUtils.formatDate(new?Date())?+?"數據");

Date?now?=?new?Date();

modelMap.put(NormalExcelConstants.PARAMS,?new?ExportParams(rechannelreport.getUsername()?+?"對賬單詳情",?"導出日期:"?+?DateUtils.formatDate(new?Date())?+?"?????",?"導出信息"));

return?MapExcelConstants.JEECG_MAP_EXCEL_VIEW;

}

導出方式二，根據實體映射現實字段

@ExcelTarget("courseEntity")

public?class?CourseEntity?implements?java.io.Serializable?{

/**?主鍵?*/????private?String?id;

/**?課程名稱?*/????@Excel(name?=?"課程名稱",?orderNum?=?"1",?needMerge?=?true)

private?String?name;

/**?老師主鍵?*/????@ExcelEntity(id?=?"yuwen")

@ExcelVerify()

private?TeacherEntity?teacher;

/**?老師主鍵?*/????@ExcelEntity(id?=?"shuxue")

private?TeacherEntity?shuxueteacher;

@ExcelCollection(name?=?"選課學生",?orderNum?=?"4")

private?List?students;

@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,"用戶信息");

map.put(NormalExcelConstants.CLASS,CourseEntity.class);

map.put(NormalExcelConstants.PARAMS,new?ExportParams("課程列表",?"導出人:Jeecg",

"導出信息"));

map.put(NormalExcelConstants.DATA_LIST,courses);

return?NormalExcelConstants.JEECG_EXCEL_VIEW;

}

總結

以上是生活随笔為你收集整理的easypoi needmerge失效_EasyPOI简单用例，简单有效的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。