使用 jxl 实现复杂的excel 表格导出 java代码

1. 使用 jxl 插件 jxl.jar

2. 导出excel 表格

3. java

4.myeclipse

5.mysql

6.ssm

7. 导出的效果

图中红色部分为从数据库中获取的动态数据。

8. 这是我们公司的项目,所以后台代码中我只粘贴出 excel 代码。如果不懂得可以联系我。

QQ:905352007

9. excel 代码段

public void exportCourseContent(HttpServletRequest request,HttpServletResponse response, List<Outline> list,
			String course_name) {
		WritableWorkbook wwb = null;
        OutputStream os = null;
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
        try {
            os = response.getOutputStream();// 取得输出流
            response.reset();// 清空输出流
            // excel 文件的 MIME 类型
            response.setContentType("application/msexcel");
            //在导出前对名称根据浏览器做下处理
            String agent = request.getHeader("USER-AGENT").toLowerCase();
            response.setContentType("application/vnd.ms-excel");
            //***************很重要
            String fileName = course_name;//文件名中文乱码
            String codedFileName = java.net.URLEncoder.encode(fileName, "UTF-8");
            if (agent.contains("firefox")) {
                response.setCharacterEncoding("utf-8");
                response.setHeader("content-disposition", "attachment;filename=" + new String(fileName.getBytes(), "ISO8859-1") + ".xls");
            } else {
                response.setHeader("content-disposition", "attachment;filename=" + codedFileName + ".xls");
            }

            wwb = jxl.Workbook.createWorkbook(os);
            WritableSheet ws = wwb.createSheet("课程统计", 10); // 创建一个工作表

            // 设置标题单元格的文字格式
            WritableFont titleFont = new WritableFont(WritableFont.createFont("宋体"), 12,
            		WritableFont.BOLD, false, UnderlineStyle.NO_UNDERLINE,Colour.BLACK);
            WritableCellFormat titleFontFormat = new WritableCellFormat(titleFont);
            titleFontFormat.setVerticalAlignment(VerticalAlignment.CENTRE);
            titleFontFormat.setAlignment(Alignment.CENTRE);
            titleFontFormat.setBackground(Colour.LIGHT_TURQUOISE);
            

            // 设置内容数据单元格的文字格式
            WritableFont cellFont = new WritableFont(WritableFont.createFont("宋体"), 12,
                    WritableFont.NO_BOLD, false, UnderlineStyle.NO_UNDERLINE,Colour.BLACK);
            WritableCellFormat cellFontFormat = new WritableCellFormat(cellFont);
            cellFontFormat.setVerticalAlignment(VerticalAlignment.CENTRE);//垂直居中
            cellFontFormat.setAlignment(Alignment.LEFT);//文字对齐方式
            
            // 设置内容数据单元格的文字格式
            WritableFont cellFont1 = new WritableFont(WritableFont.createFont("宋体"), 12,
                    WritableFont.NO_BOLD, false, UnderlineStyle.NO_UNDERLINE,Colour.BLACK);
            WritableCellFormat cellFontFormat1 = new WritableCellFormat(cellFont1);
            cellFontFormat1.setVerticalAlignment(VerticalAlignment.CENTRE);//垂直居中
            cellFontFormat1.setAlignment(Alignment.CENTRE);//文字对齐方式

            ws.getSettings().setDefaultColumnWidth(18);
            ws.getSettings().setDefaultRowHeight(300);
            
            CellView cellView = new CellView();  
            cellView.setAutosize(true); //设置自动大小  
            /*======= 设置列宽 =====*/ 
            ws.setColumnView(0, 30);//根据内容自动设置列宽 
            ws.setColumnView(1, 30);
            ws.setColumnView(2, 30);
            ws.setColumnView(3, 24);
            ws.setColumnView(4, 24);
            ws.setColumnView(5, 24);
           
            //ws.mergeCells(0, 0, 3, 0);//合并单元格 第一个参数从哪个列开始合并,第二个参数为第几行,第三个参数为到那一列结束,第四个参数为合并几行
            /*======= 填充标题 =====*/ 
            ws.addCell(new Label(0, 0, "章名", titleFontFormat));  // 第一个参数为: 第几列,第二个参数为: 第几行
            ws.addCell(new Label(1, 0, "节名", titleFontFormat));
            ws.addCell(new Label(2, 0, "单元名", titleFontFormat));
            ws.addCell(new Label(3, 0, "单元序号", titleFontFormat));
            ws.addCell(new Label(4, 0, "单元类型", titleFontFormat));
            ws.addCell(new Label(5, 0, "视频时长", titleFontFormat));
            
            /*======= 填充内容 =====*/ 
            /** 循环章 */
            Outline outline = null;
            Outline childoutline = null;
            CourseContent content = null;
            List<Outline> childlist = null;
            List<CourseContent> contentlist = null;
            String dan="";
            int oc_count = 0;
            int occ_count = 0;
            int content_count = 0;
            int outline_content_count = 0;
            dan="--";
            //循环章
            for (int i = 0; i < list.size(); i++) {
            	outline = list.get(i);
            	childlist = outline.getChild();
            	oc_count = content_count+1;
            	ws.addCell(new Label(0, content_count+1, "" + outline.getTitle(),cellFontFormat));// 章的内容
                //循环节
                for(int j = 0; j < childlist.size(); j++){
                	childoutline = childlist.get(j);
                	contentlist = childoutline.getContent();
                	occ_count = outline_content_count+1;
                	ws.addCell(new Label(1, outline_content_count+1, "" + childoutline.getTitle(),cellFontFormat));
                	//循环单元
                	if(contentlist==null||contentlist.size()<=0){
                		ws.addCell(new Label(2, outline_content_count+1,dan,cellFontFormat));
                		ws.addCell(new Label(3, outline_content_count+1,dan,cellFontFormat1));
                		ws.addCell(new Label(4, outline_content_count+1,dan,cellFontFormat1));
                		ws.addCell(new Label(5, outline_content_count+1,dan,cellFontFormat1));
                		content_count++;
                		outline_content_count++;
                	}else{
                		for(int k = 0; k < contentlist.size(); k++){
                			content = contentlist.get(k);
                    		ws.addCell(new Label(2, content_count+1,content.getTitle(),cellFontFormat));
                    		ws.addCell(new Label(3, content_count+1,content.getSort()+"",cellFontFormat1));
                    		if(content.getType()!=null){
                    			if(content.getType()==1){
                    				ws.addCell(new Label(4, content_count+1,"视频",cellFontFormat1));
                    			}else if(content.getType()==2){
                    				ws.addCell(new Label(4, content_count+1,"文档",cellFontFormat1));
                    			}else{
                    				ws.addCell(new Label(4, content_count+1,"其他",cellFontFormat1));
                    			}
                    		}else{
                    			ws.addCell(new Label(4, content_count+1,"暂无",cellFontFormat1));
                    		}
                    		if(content.getVideo_time()!=null){
                    			ws.addCell(new Label(5, content_count+1,content.getVideo_time()+"",cellFontFormat1));
                    		}else{
                    			ws.addCell(new Label(5, content_count+1,0+"",cellFontFormat1));
                    		}
                    		
                    		content_count++;
                    		outline_content_count++;
                    	}
                	}
                	//合并节单元格
                	ws.mergeCells(1, occ_count, 1, outline_content_count);
                }
                //合并章单元格
                ws.mergeCells(0, oc_count, 0, content_count);
            }
            ws.toString();
            wwb.write();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (wwb != null) {
                    wwb.close();
                }
                if (os != null) {
                    os.close();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
	}

  10. 当然了,这只是我想到的一种方法,如果有哪个大神有更简单的方法,欢迎在下方留言!

原文地址:https://www.cnblogs.com/bb1008/p/9232346.html