grails excel-export 如何从页面导出excel

Posted 2023-05-05

1.如果没有Grails 的 Export插件， 需要事先安装和配置：
2.安装插件命令：grails install-plugin export
然后在Project下面的config里面配置，
在grails.mime.types=[]内加入信息如下：
/**
* 构建excel
* @param block 闭包，封装构建逻辑
*/
def build(dataList,titleList,out,Closure block)

def wb = new HSSFWorkbook();
def sheet = wb.createSheet("new sheet");
def row
def cell
def style = wb.createCellStyle()
def font = wb.createFont()
font.setFontHeightInPoints((short)12)
font.setFontName("宋体")
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD)
style.setFont(font)
style.setAlignment(HSSFCellStyle.ALIGN_CENTER)
style.setFillBackgroundColor(HSSFColor.ORANGE.index)
row = sheet.createRow((short) 0);

titleList.eachWithIndextitle, i ->
cell = row.createCell((short) (i));
cell.setCellStyle(style)
cell.setCellValue(title);


//生成逻辑
block.call(sheet,row)

titleList.size().times i ->
sheet.autoSizeColumn((short)i)

wb.write(out);
out.close()


/**
* 生成excel
* @param dataList 数据列表，其中的元素是放入每行cell的数据
* @param titleList 标题列表
* @param out
*/
def genForList(List<List> dataList,List titleList,out)
def block = sheet,row ->
dataList.eachWithIndex dataRow,i ->
row = sheet.createRow((short) (i+1));
dataRow.eachWithIndex data,j ->
row.createCell((short) (j)).setCellValue(data.toString())



build(dataList,titleList,out,block)


/**
* 生成excel
* @param dataList 数据列表，其中的元素是放入每行cell的数据
* @param titleList 标题列表
* @param out　OutputStream
*/
def genForMap(List<Map> dataList,List titleList,out)
def block = sheet,row ->
dataList.eachWithIndex dataRow,i ->
row = sheet.createRow((short) (i+1));
dataRow.eachWithIndex k,v,j ->
row.createCell((short) (j)).setCellValue(v.toString())



build(dataList,titleList,out,block)
参考技术A 用 poi 来导出 excel 文件

Java代码
import org.codehaus.groovy.grails.commons.*
import org.apache.poi.hssf.usermodel.HSSFWorkbook
import org.apache.poi.hssf.usermodel.HSSFSheet
import org.apache.poi.hssf.usermodel.HSSFRow
import org.apache.poi.hssf.usermodel.HSSFCell
import org.codehaus.groovy.grails.commons.GrailsDomainClass
import org.codehaus.groovy.grails.web.converters.ConverterUtil
import org.springframework.web.servlet.support.RequestContextUtils as RCU
import org.codehaus.groovy.grails.scaffolding.DomainClassPropertyComparator;
import org.springframework.context.MessageSource
import org.apache.poi.hssf.usermodel.HSSFCellStyle
import org.apache.poi.hssf.usermodel.HSSFFont
import org.apache.poi.hssf.util.HSSFColor;

class XlsExportService

// def messageSource
MessageSource messageSource
boolean transactional = true
// def config = ConfigurationHolder.config
// def domainName
def xlsExport(out, request, domain, datas)
def excludedProps = ['id', 'version']
def column = []
def titles = []
def outProperties
def locale = RCU.getLocale(request)
// def text
def args
def domainName = domain.toLowerCase()
GrailsDomainClass domainClass = ConverterUtil.getDomainClass(domain)
if (domainClass != null)
outProperties = domainClass.properties.findAll !excludedProps.contains(it.name)

Collections.sort(outProperties, new DomainClassPropertyComparator(domainClass))
outProperties.each
column << "$it.name"
def text = messageSource.getMessage(
"$domainName.$it.name".toString(),
args == null ? null : args.toArray(),
"$domainName.$it.name".toString(),
locale)
titles << text

HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet("new sheet");
HSSFRow row
HSSFCell cell
HSSFCellStyle style = wb.createCellStyle()
HSSFFont font = wb.createFont()
font.setFontHeightInPoints((short)12)
font.setFontName("宋体")
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD)
style.setFont(font)
style.setAlignment(HSSFCellStyle.ALIGN_CENTER)
style.setFillBackgroundColor(HSSFColor.ORANGE.index)
// style.setFillPattern(HSSFCellStyle.)
// set the title
row = sheet.createRow((short) 0);
titles.eachWithIndex title, i ->
cell = row.createCell((short) (i));
cell.setCellStyle(style)
cell.setCellValue(title);


// set the data
datas.eachWithIndex data, i ->
row = sheet.createRow((short) (i+1));
column.eachWithIndex p, j ->
row.createCell((short) (j)).setCellValue(data."$p");





// Write the output to a file
wb.write(out);
out.close()





在你的 domaincontroller 中加入

Java代码
def exportXls =
// def excludedProps = ['id', 'version']
// def column = []
// def titles = []
// def outProperties = []
// GrailsDomainClass domainClass = ConverterUtil.getDomainClass("Person");
// if (domainClass != null)
// domainClass.persistentProperties.each p ->
// outProperties << p.name
// ;
//
//
// outProperties.each
// column << "$it"
// titles << message(code: "person.$it")
//
response.setHeader("Content-disposition", "attachment; filename=person.xls")
response.setContentType("application/vnd.ms-excel")
// ServletOutputStream f = response.getOutputStream();
xlsExportService.xlsExport(response.outputStream, request,"Person", Person.list())
// render(contextType:"application/vnd.ms-excel")



这个好处就是导出的表头信息通过 properties来获取！本回答被提问者和网友采纳

Excel-Export导出批注报错

在Grails里面使用Excel-Export插件时，导出批注时会报如下异常：

org.openxmlformats.schemas.spreadsheetml.x2006.main.CTPhoneticRun

解决方法：

需引入 compile(group:'org.apache.poi',name:'ooxml-schemas',version:'1.1')