Java导出Excel表格、Txt到浏览器下载 --菜鸟小回

Java导出Excel表格、Txt到浏览器下载

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• 注：若只需要导出Txt则不需要Excel的pom包和工具类

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一. pom依赖

		
			org.apache.poi
			poi
			3.17
		
		
			org.apache.poi
			poi-ooxml
			3.17
		
		
			org.apache.poi
			poi-ooxml-schemas
			3.17
		

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二. 工具类

1. ExcelUtil 用于生成工作簿对象和sheet对象等

public class ExcelUtils {
	/**
	 * 
	 * @param titles 表格标题
	 * @param name sheet名
	 * @return
	 * @throws Exception
	 */
	public static Workbook exportExcel(String[] titles,String name) throws Exception{

		// 新建工作簿对象
		XSSFWorkbook workBook = new XSSFWorkbook();
		// 创建sheet对象
		XSSFSheet sheet = workBook.createSheet(name);
		// 创建行,标题行
		XSSFRow row = sheet.createRow(0);
		for(int i = 0; i < titles.length; i++){
			// 创建单元格
			XSSFCell cell = row.createCell(i);
			// 设置单元格内容
			cell.setCellValue(titles[i]);
		}
		return workBook;
	}
}

2. BuildPath 用于创建响应对象输出流

public class BuildPath {
	/**
	 * 
	 * @param response  响应对象
	 * @param fileName  输出内容
	 * @return 响应对象输出流
	 * @throws IOException
	 */
	public  static OutputStream  Manual_Saving(HttpServletResponse response,String fileName) throws IOException{
		
		//浏览器自选输出路径
		response.setHeader("Content-disposition", "attachment;filename="+fileName);
		response.setContentType("application/msexcel");

		OutputStream out=response.getOutputStream();
		return out;
	}
}

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三、后台

1. 导出Txt(只需要传入需要导出表的id集合如“1,2,3”即可)

@RequestMapping("/exportTxt.do")
	public void exportTerminalKey(HttpServletRequest request, HttpServletResponse response,String ids) throws Exception {

		Result result=new Result(6001, false, "导出失败");
		
		List list=new ArrayList<>();
		Collections.addAll(list, ids.split(","));
		VO mv=new VO();
		mv.setIds(list);
		List medicines=medicineService.selectAll(mv);
		StringBuilder sb = new StringBuilder("编号,图片地址,进价,售价,药品名称\r\n");
		if(medicines!=null&&medicines.size()>0){
			for(int i=0;i

2. 导出Excel(只需要传入需要导出表的id集合如“1,2,3”即可)

@RequestMapping("/exportMedicine.do")
	public void exportDoctor(String ids,HttpServletResponse response) throws Exception{

		String[] titles={"编号","图片地址","进价","售价","药品名称"};
		Result result=new Result(6001, false, "导出失败");
		VO mv=new VO();
		List list=new ArrayList<>();
		//分割ids字符串得到数组并放入集合
		Collections.addAll(list, ids.split(","));
		mv.setIds(list);
		//查询所有信息放到集合中
		List medicines=medicineService.selectAll(mv);
		
		//设置导出信息
		Workbook wk=ExcelUtils.exportExcel(titles,"药品信息");

		XSSFSheet sheet=(XSSFSheet) wk.getSheet("药品信息");
		
		//取出集合中的数据放到表格中
		for(int i=0;i

四、前端

1. JavaScript

$.post("../selectMedicineByCondition.do",{pageNum:pageNum,m_name:m_name,m_type:m_type},function(result){
    //填充数据到tbody
    $("#tbody").empty();//清除之前的内容
    $(result.object.list).each(function(index,medicine){
    	$("#tbody").append(
    			" "+
             	""+
                ""+medicine.m_number+""+
                ""+medicine.m_name+""+
                ""+medicine.m_type+""+
                ""+medicine.m_description+""+
                ""+medicine.m_state+""+
                ""+medicine.m_residue+""+
                ""+
                "详情>>>    "+
            	""
            	);
    })
},"json");	

$("input[type=checkbox]").live("change",function(){
	delAll();  
})
//查看所有被选中的checkbox框并记录其id
function delAll(){
	var alls=document.getElementsByName("check");
	var ids=new Array();
	for(var i=0;i

2. Html

    

    

        

        
药品编号
        
药品名称
        
药品类型
        
简单描述
        
状态
        
剩余量
        
操作