java 导入到EXCEL表格

桃扇骨 2022-09-13 05:29 193阅读 0赞

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    package com.fh.util;
    
    import java.util.Date;
    import java.util.List;
    import java.util.Map;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    import org.apache.poi.hssf.usermodel.HSSFCellStyle;
    import org.apache.poi.hssf.usermodel.HSSFFont;
    import org.apache.poi.hssf.usermodel.HSSFRow;
    import org.apache.poi.hssf.usermodel.HSSFSheet;
    import org.apache.poi.hssf.usermodel.HSSFWorkbook;
    import org.apache.poi.ss.usermodel.HorizontalAlignment;
    import org.apache.poi.ss.usermodel.VerticalAlignment;
    import org.apache.poi.ss.usermodel.Workbook;
    import org.springframework.web.servlet.view.document.AbstractXlsView;
    
    import com.fh.util.PageData;
    import com.fh.util.Tools;
    
    /**
     * 说明：导入到EXCEL
     * 作者：FH Admin
     * from：fhadmin.cn
     */
    public class ObjectExcelView extends AbstractXlsView{
        
        @Override
        protected void buildExcelDocument(Map<String, Object> model,
                Workbook workbook, HttpServletRequest request,
                HttpServletResponse response) throws Exception {
            // TODO Auto-generated method stub
            Date date = new Date();
            String filename = Tools.date2Str(date, "yyyyMMddHHmmss");
            HSSFSheet sheet;
            response.setContentType("application/octet-stream");
            response.setHeader("Content-Disposition", "attachment;filename="+filename+".xls");
            
            HSSFWorkbook book = (HSSFWorkbook) workbook;
            sheet = book.createSheet("sheet1");
            
            List<String> titles = (List<String>) model.get("titles");
            int len = titles.size();
            HSSFCellStyle headerStyle = book.createCellStyle(); //标题样式
            headerStyle.setAlignment(HorizontalAlignment.CENTER);
            headerStyle.setVerticalAlignment(VerticalAlignment.CENTER);
            HSSFFont headerFont = book.createFont();            //标题字体
            headerFont.setBold(true);
            headerFont.setFontHeightInPoints((short)11);
            headerStyle.setFont(headerFont);
            short height=25*20;
            HSSFRow row = sheet.createRow(0);
            for(int i=0; i<len; i++){ //设置标题
                String title = titles.get(i);
                row.setRowStyle(headerStyle);
                row.createCell(i).setCellValue(title);  
            }
            sheet.getRow(0).setHeight(height);
            
            HSSFCellStyle contentStyle = book.createCellStyle(); //内容样式
            contentStyle.setAlignment(HorizontalAlignment.CENTER);
            List<PageData> varList = (List<PageData>) model.get("varList");
            int varCount = varList.size();
            for(int i=0; i<varCount; i++){
                PageData vpd = varList.get(i);
                HSSFRow rows = sheet.createRow(i+1); 
                for(int j=0;j<len;j++){
                    String varstr = vpd.getString("var"+(j+1)) != null ? vpd.getString("var"+(j+1)) : "";
                    rows.setRowStyle(contentStyle);
                    rows.createCell(j).setCellValue(varstr);
                }
                
            }
            
        }
    
    
    
    }

------------------------------------------------------------------自定义表单  
28. 定义模版：拖拽左侧表单元素到右侧区域，编辑表单元素，保存表单模版  
29. 表单模版：编辑维护表单模版，复制表单模版，修改模版类型，预览表单模版  
30. 我的表单：选择表单模版，编辑表单规则，是否上传图片、附件、开启富文本、挂靠流程开关等  
31. 表单数据：从我的表单进去可增删改查表单数据，修改表单规则  
32. 挂靠记录：记录表单数据和流程实例ID关联记录，可删除