标签：map String Excel new put EasyPoi ev binocularOperation 模板
1. 引入依赖
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-base</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-web</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-annotation</artifactId>
<version>3.2.0</version>
</dependency>
2.Excel模板
3.具体业务代码
FileOutputStream fileOut;
BufferedImage bufferImg1;
BufferedImage bufferImg2;
Map resMap = new HashMap();
try {
//数据库查出的对象 具体根据业务逻辑更改
EngineeringVo ev = engineeringExplorationMapper.findEngineeringVoByAssetsId(assetsId);
TemplateExportParams params = new TemplateExportParams(
"D:/excel/光交箱勘测表.xls");
//填充数据
//注意map中put的值 不要为空binocularOperation()自己写的三目运算为空处理办法
Map<String, Object> map = new HashMap<>();
map.put("projectName", binocularOperation(ev.getProjectName()));
map.put("contactsTelephone", binocularOperation(ev.getContactsTelephone()));
map.put("assetsCode", binocularOperation(ev.getAssetsCode()));
map.put("address", binocularOperation(ev.getAddress()));
map.put("boxSize", binocularOperation(ev.getBoxSize()));
map.put("capacity", binocularOperation(ev.getCapacity()));
map.put("operationSurfaces", binocularOperation(ev.getOperationSurfaces()));
map.put("boxBaseSize", binocularOperation(ev.getBoxBaseSize()));
map.put("adapters", binocularOperation(ev.getAdapters()));
map.put("environmentDescription", binocularOperation(ev.getEnvironmentDescription()));
map.put("expansionDirections", binocularOperation(ev.getExpansionDirections()));
map.put("capacityExpansion", binocularOperation(ev.getCapacityExpansion()));
map.put("description", binocularOperation(ev.getDescription()));
map.put("userName", binocularOperation(ev.getUserName()));
map.put("tel", binocularOperation(ev.getTel()));
String time = " ";
Date createTime = ev.getCreateTime();
SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd");
if (null != createTime) {
time = sf.format(createTime);
}
map.put("createTime", time);
//这里需要强转 插入图片需要XSSFWorkbook对象
//Workbook不可以转为HSSFWorkbook 具体逻辑调试看结果集
XSSFWorkbook workbook = (XSSFWorkbook) ExcelExportUtil.exportExcel(params, map);
String time2 = " ";
SimpleDateFormat sf2 = new SimpleDateFormat("yyyyMMddHHmmss");
if (null != createTime) {
time2 = sf2.format(createTime);
}
String assetsPicture = ev.getAssetsPicture();
//插入图片
if (!StringUtil.isEmpty(assetsPicture)) {
String replace = assetsPicture.replace(ur, di).replace("[", "").replace("]", "").replace("\"", "");
String[] split = replace.split(",");
if(split.length == 1){
String s = split[0];
String picturePath = s.replace(ur, di);
ByteArrayOutputStream byteArrayOut = new ByteArrayOutputStream();
//加载图片
bufferImg1 = ImageIO.read(new File(picturePath));
ImageIO.write(bufferImg1, "png", byteArrayOut);
XSSFSheet sheet1 = workbook.getSheet("sheet1");
XSSFDrawing patriarch = sheet1.createDrawingPatriarch();
//图片 1 3 11 7 18 意思为 横轴3 纵轴11 横轴3 纵轴18
XSSFClientAnchor anchor = new XSSFClientAnchor(0, 0, 0, 0, (short) 3, 11, (short) 7, 18);
patriarch.createPicture(anchor, workbook.addPicture(byteArrayOut.toByteArray(), XSSFWorkbook.PICTURE_TYPE_PNG));
//图片2
anchor = new XSSFClientAnchor(-200, 0, 0, 0, (short) 9, 11, (short) 12, 18);
patriarch.createPicture(anchor, workbook.addPicture(byteArrayOut.toByteArray(), XSSFWorkbook.PICTURE_TYPE_PNG));
}else{
String s1 = split[0];
String picturePath1 = s1.replace(ur, di);
String s2 = split[1];
String picturePath2 = s2.replace(ur, di);
ByteArrayOutputStream byteArrayOut1 = new ByteArrayOutputStream();
ByteArrayOutputStream byteArrayOut2 = new ByteArrayOutputStream();
//加载图片
bufferImg1 = ImageIO.read(new File(picturePath1));
bufferImg2 = ImageIO.read(new File(picturePath2));
log.info("加载图片完成！！");
ImageIO.write(bufferImg1, "png", byteArrayOut1);
ImageIO.write(bufferImg2, "png", byteArrayOut2);
XSSFSheet sheet1 = workbook.getSheet("sheet1");
XSSFDrawing patriarch = sheet1.createDrawingPatriarch();
log.info("开始写入图片位置！！");
//图片 1
XSSFClientAnchor anchor1 = new XSSFClientAnchor(0, 0, 0, 0, (short) 3, 11, (short) 7, 18);
patriarch.createPicture(anchor1, workbook.addPicture(byteArrayOut1.toByteArray(), XSSFWorkbook.PICTURE_TYPE_PNG));
//图片2
XSSFClientAnchor anchor2 = new XSSFClientAnchor(0, 0, 0, 0, (short) 9, 11, (short) 12, 18);
patriarch.createPicture(anchor2, workbook.addPicture(byteArrayOut2.toByteArray(), XSSFWorkbook.PICTURE_TYPE_PNG));
}
}
String fileName = ev.getAssetsName() + "-" + time2 + ".xlsx";
fileOut = new FileOutputStream(fileDir + fileName);
workbook.write(fileOut);
fileOut.close();
resMap.put("url", fileUrl + fileName);
} catch (IOException e) {
e.printStackTrace();
}
4. 效果图
5. 遍历多行数据
fe的写法 fe标志 冒号 list数据 单个元素数据（默认t，可以不写） 第一个元素 {{$fe: maplist t t.id }}
上述获取为list
填充数据
Map<String, Object> map = new HashMap<String, Object>();
List<Map<String, String>> listMap = new ArrayList<Map<String, String>>();
for (int i = 0; i < 4; i++) {
Map<String, String> lm = new HashMap<String, String>();
lm.put("id", i + 1 + "");
lm.put("zijin", i * 10000 + "");
lm.put("bianma", "A001");
lm.put("mingcheng", "设计");
lm.put("xiangmumingcheng", "EasyPoi " + i + "期");
lm.put("quancheng", "开源项目");
lm.put("sqje", i * 10000 + "");
lm.put("hdje", i * 10000 + "");
listMap.add(lm);
}
map.put("maplist", listMap);
具体参考：http://easypoi.mydoc.io/ 中第三点
6.总结：
1) map中的值不能为null，不然会报空指针 2) workbook对象不能转HSSFWorkbook，可以转为XSSFWorkbook
标签：map,String,Excel,new,put,EasyPoi,ev,binocularOperation,模板 来源： https://www.cnblogs.com/mylqm/p/14813634.html
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