标签：返回 code framework list web puts mapping mode type
<!-- excel解析包 -->
<!-- https://mvnrepository.com/artifact/org.apache.poi/poi -->
<!--处理2003 excel-->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.16</version>
</dependency>
<!--处理2007 excel-->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.16</version>
</dependency>//配置文件上传
@Bean(name = "multipartResolver")
public MultipartResolver multipartResolver() {
CommonsMultipartResolver resolver = new CommonsMultipartResolver();
resolver.setDefaultEncoding("UTF-8");
// resolveLazily属性启用是为了推迟文件解析，以在在UploadAction中捕获文件大小异常
resolver.setResolveLazily(true);
resolver.setMaxInMemorySize(40960);
// 上传文件大小 5G
resolver.setMaxUploadSize(5 * 1024 * 1024 * 1024);
return resolver;
}package com.sanyu.tender.util.excelAnalysis;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.multipart.MultipartFile;
import java.io.*;
import java.util.ArrayList;
/**
* @Author：huang
* @Date：2019-09-10 10:29
* @Description：excel文件解析类
*/
public class Analysis {
public Analysis() {
throw new Error("工具类不允许实例化！");
}
/**
* 获取并解析excel文件，返回一个二维集合
* @param file 上传的文件
* @return 二维集合（第一重集合为行，第二重集合为列，每一行包含该行的列集合，列集合包含该行的全部单元格的值）
*/
public static ArrayList<ArrayList<String>> analysis(MultipartFile file) {
ArrayList<ArrayList<String>> row = new ArrayList<>();
//获取文件名称
String fileName = file.getOriginalFilename();
System.out.println(fileName);
try {
//获取输入流
InputStream in = file.getInputStream();
//判断excel版本
Workbook workbook = null;
if (judegExcelEdition(fileName)) {
workbook = new XSSFWorkbook(in);
} else {
workbook = new HSSFWorkbook(in);
}
//获取第一张工作表
Sheet sheet = workbook.getSheetAt(0);
//从第二行开始获取
for (int i = 1; i < sheet.getPhysicalNumberOfRows(); i++) {
//循环获取工作表的每一行
Row sheetRow = sheet.getRow(i);
//循环获取每一列
ArrayList<String> cell = new ArrayList<>();
for (int j = 0; j < sheetRow.getPhysicalNumberOfCells(); j++) {
//将每一个单元格的值装入列集合
cell.add(sheetRow.getCell(j).getStringCellValue());
}
//将装有每一列的集合装入大集合
row.add(cell);
//关闭资源
workbook.close();
}
} catch (FileNotFoundException e) {
e.printStackTrace();
System.out.println("===================未找到文件======================");
} catch (IOException e) {
e.printStackTrace();
System.out.println("===================上传失败======================");
}
return row;
}
/**
* 判断上传的excel文件版本（xls为2003，xlsx为2017）
* @param fileName 文件路径
* @return excel2007及以上版本返回true，excel2007以下版本返回false
*/
private static boolean judegExcelEdition(String fileName){
if (fileName.matches("^.+\\.(?i)(xls)$")){
return false;
}else {
return true;
}
}
}html：
<input type="file" multiple name="file_0" id="input-file" class="input-file">js：
/*判断文件类型*/
function isExcel(){
var fileInput = document.getElementById("input-file").value;
//判断文件是否为空
if (fileInput == null || fileInput.trim() == ''){
//layer.msg('请上传文件！');
return false;
}else {
//判断文件是否为excel文件
var reg =/^.*\.(?:xls|xlsx)$/;
if (!reg.test(fileInput)){
//layer.msg('请上传Excel文件！');
return false;
}else {
return true;
}
}
}
/*文件上传*/
function uplaodFile() {
//当文件符合标准的时候才上传
if (isExcel()){
//将上传组件添加进临时表单
var form = new FormData();
form.append("file", document.getElementById("input-file").files[0]);
//提交表单
$.ajax({
url: "http://localhost:8080/upload",
data: form,
cache: false,
async: false,
type: "POST",
dataType: 'json',
processData: false,
contentType: false,
success: function (data) {
var status = data["status"]
if(status == "success"){
alert("解析成功！");
}else {
alert("解析失败！");
}
},
error: function (err) {
console.log(err);
alert("上传失败！");
}
});
}
}controller
package com.sanyu.tender.controller.util;
import com.sanyu.tender.util.excelAnalysis.Analysis;
import javafx.scene.control.Alert;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* @Author：huang
* @Date：2019-09-09 18:41
* @Description：<描述>
*/
@Controller
public class ImportFileController {
//接受文件上传
@RequestMapping("/upload")
@ResponseBody
public Map uploadFile(MultipartFile file){
Map<String,Object> map = new HashMap<>(16);
//解析excel文件
List<ArrayList<String>> row = Analysis.analysis(file);
//打印信息
for (int i = 0;i<row.size();i++){
List<String> cell = row.get(i);
for (int j = 0;j<cell.size();j++){
System.out.print(cell.get(j)+" ");
}
System.out.println();
}
//如果要上传到服务器的话
/*String targetUrl = "D:\\MYURLFILE";
try {
file.transferTo(new File(targetUrl, fileName));
} catch (IOException e) {
e.printStackTrace();
map.put("status","error");
}*/
map.put("status","success");
return map;
}
}
准备导入的excel文件
运行后的控制台打印的数据
标签：返回 code framework list web puts mapping mode type
原文地址：https://www.cnblogs.com/Createsequence/p/11496786.html
