//Controller层：/*start---------------------------------------导出Excel接口[需要3个参数]-------------------------------------------------------------*/
/**
* 功能描述：【导出Excel接口】
* 创建者：shiyanjun
* @param columns 表头
* @param querySql 查询SQL
* @param filePath 文件目录
* @param request
* @param response
*/
@RequestMapping(value = "exportExcelApi", method = RequestMethod.GET)
@ResponseBody
public void exportExcelApi( @RequestParam (value = "columns",defaultValue = "")String columns,
@RequestParam(value = "querySql",defaultValue = "") String querySql,
@RequestParam(value = "filePath",defaultValue = "") String filePath,
HttpServletRequest request,HttpServletResponse response) {
String fileName = "档案信息";//文件名称
columns = "ID,EHR_ID,EHR_CODE,INNER_CODE,PERSON_NAME,GENDER";//模拟表头
querySql = "SELECT ID,EHR_ID,EHR_CODE,INNER_CODE,PERSON_NAME,GENDER FROM EHR_BASE EB WHERE EB.GENDER = ‘1‘";//模拟查询SQL
String basePath = ApplicationContextUtils.getBasePath();//获取项目根路径
filePath = basePath + "exportExcelApi\\";
String dateName = "20140220\\";//日期文件夹
String tabName = "EHR\\";//表名文件夹
filePath = filePath + dateName + tabName;
try {
exportApiService.importExcelApi(querySql, columns, fileName, filePath);
} catch (Exception e) {
e.printStackTrace();
}
}
/*end---------------------------------------导出Excel接口[需要3个参数]-------------------------------------------------------------*/
/*start---------------------------------------导出Excel接口[需要3个参数]-------------------------------------------------------------*/
//Service层
/**
* 功能描述：【导出Excel接口】
* @param querySql
* @param columnsStr
* @param fileName
* @param outStream
* @throws Exception
*/
public void importExcelApi(String querySql,String columnsStr,String fileName,String filePath)throws Exception{
FileOutputStream outStream = null;
//根据SQL语句查询要导出的数据
List<Map<String,Object>> rowData = jdbcTemplate.queryForList(querySql);
//要导出的表头
List<ExportColumnDto> columns=new ArrayList<ExportColumnDto>();
if(columnsStr != null){
String[] arr = columnsStr.split(",");
if(arr != null){
for (String str : arr) {
if(str != null){
columns.add(new ExportColumnDto(str, str));
}
}
}
}
int count = rowData.size();//数据总条数
int rows = 1500;//每个Excel文件中要显示的数据条数
int num = 1;//初始化要导出的Excel文件数
//根据count和rows来计算实际导出的文件个数
if(count >= rows){
if(count % rows == 0){
num = count/rows;
}else{
num = count/rows + 1;
}
}
List<Map<String,Object>> rowDataSub = null;//从rowData中取出指定条数(rows)的数据存到rowDataSub中
File file = new File(filePath);
//如果文件夹不存在则创建
if(!file.exists() && !file.isDirectory()){
// System.out.println("//不存在");
file.mkdirs();
}/* else {
System.out.println("//目录存在");
}*/
for (int i = 0; i < num; i++) {
try {
outStream = new FileOutputStream(filePath + (i+1) + ".xls");//创建文件输出流，指定导出的文件路径
} catch (FileNotFoundException e) {
e.printStackTrace();
}
if(i == (num - 1)){
rowDataSub = rowData.subList(i*rows, count);//最后一个文件
}else{
rowDataSub = rowData.subList(i*rows, (i+1)*rows);
}
try {
ExportApiService.printExcelApi(columns, rowDataSub, fileName, outStream);//导出Excel
} catch (Exception e) {
logger.error("导出Excel异常", e);
} finally {
try {
if (outStream != null) {
outStream.flush();
outStream.close();
}
} catch (Exception e1) {
}
}
}
}
/**
* 【自定义查询导出到Excel】
* @param columns List<ExportColumnDto> 列设置集合
* @param rowData 数据集合
* @param filename 自定义查询名称
* @param filePath 导出文件临时存放路径
* @return
*/
public static void printExcelApi(List<ExportColumnDto> columns,List<Map<String,Object>> rowData,String fileName,FileOutputStream outStream)throws Exception{
if(rowData == null || rowData.size() < 1) throw new RuntimeException("数据集合为空");
else if(columns == null || columns.size() < 1) throw new RuntimeException("导出列集合集合为空");
else{
WritableWorkbook writableWorkbook=Workbook.createWorkbook(outStream); // 创建工作薄
WritableSheet writableSheet = writableWorkbook.createSheet(fileName, 0); // 创建工作表
//设置标题格式
WritableFont headerFont = new WritableFont(WritableFont.ARIAL, 15,WritableFont.BOLD, false, UnderlineStyle.NO_UNDERLINE,jxl.format.Colour.BLACK);
WritableCellFormat headerFormat = new WritableCellFormat(headerFont);
// headerFormat.setBorder(Border.ALL, BorderLineStyle.THIN);
// headerFormat.setAlignment(Alignment.CENTRE);//水平对齐
headerFormat.setVerticalAlignment(VerticalAlignment.CENTRE); // 垂直对齐
//设置表头格式
WritableFont titleFont = new WritableFont(WritableFont.ARIAL, 10,WritableFont.BOLD, false, UnderlineStyle.NO_UNDERLINE,jxl.format.Colour.BLACK);
WritableCellFormat titleFormat = new WritableCellFormat(titleFont);
// titleFormat.setBorder(Border.ALL, BorderLineStyle.THIN);
// titleFormat.setAlignment(Alignment.CENTRE);
WritableFont dateFont = new WritableFont(WritableFont.ARIAL, 10,WritableFont.NO_BOLD, false, UnderlineStyle.NO_UNDERLINE,jxl.format.Colour.BLACK);
//设置显示数据格式
WritableCellFormat dataFormat = new WritableCellFormat(dateFont);
// dataFormat.setAlignment(Alignment.CENTRE);
dataFormat.setVerticalAlignment(VerticalAlignment.CENTRE);
writableSheet.mergeCells(0, 0, columns.size()-1, 0); // 合并第一行的单元格(合并了titleList.size 个单元格)
//添加标题
writableSheet.addCell(new Label(0,0,fileName,headerFormat));//第一个0 表示 列 ,第二个0 表示行, headerFormat 格式化EXCEL
//添加title
String descript="";
for(int i=0;i<columns.size();i++){
descript=columns.get(i).getDescription();
writableSheet.addCell(new Label(i,1,descript,titleFormat));
}
//填充数据
Object value=null;
String showValue="";
String name="";
Method method=null;
//初始化字段转换函数
Map<String,Method> methodCache=new HashMap<String,Method>();
Class convert=FieldConvert.class;
for(int j=0;j<columns.size();j++){
String convertName=columns.get(j).getConvertName();
try{
method=convert.getMethod("convert"+convertName, String.class);
if(null != method) methodCache.put(convertName, method);
}catch(NoSuchMethodException ne){}
}
for(int k=0;k<rowData.size();k++){
for(int j=0;j<columns.size();j++){
name=columns.get(j).getName();
value=rowData.get(k).get(name);
showValue=value == null ? "":String.valueOf(value);
if("".equals(showValue.trim()) || "-1".equals(showValue.trim()) ){
showValue="不详";
}else{
String convertName=columns.get(j).getConvertName();
if(methodCache.containsKey(convertName)){
showValue=methodCache.get(convertName).invoke(convert, value).toString();
}
}
writableSheet.addCell(new Label(j,k+2,showValue,dataFormat));
}
}
writableWorkbook.write();
writableWorkbook.close();
}
}
/*end---------------------------------------导出Excel接口[需要3个参数]-------------------------------------------------------------*/
时间： 2024-10-09 21:19:08