Excel上传并解析java对象(项目可下载)

Excel上传并解析java对象(maven版)

点我下载完成项目

http://download.csdn.net/download/weixin_39549656/10195349

成功如下

需要上传Excel例子



解析成功图片



上传页面

代码

pom.xml需要加入,文件上传需要的的file-upload.jar和解析Exl的poi.jar

pom.xml

<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.8</version>
<exclusions>
<exclusion>
<artifactId>commons-codec</artifactId>
<groupId>commons-codec</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
4000

<version>3.8</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.github.davidcarboni/encrypted-file-upload -->
<dependency>
<groupId>com.github.davidcarboni</groupId>
<artifactId>encrypted-file-upload</artifactId>
<version>1.0.2</version>
</dependency>

UserAction.java

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;

import com.ccd.user.service.UserService;

@Controller
@RequestMapping("user")
public class UserAction {

@Autowired
private UserService userService;

@RequestMapping(value = "/upload", method = RequestMethod.POST)
@ResponseBody
public String upload(@RequestParam(value = "file", required = false) MultipartFile file, HttpServletRequest request,
HttpServletResponse response) {
// 这里今天controller层
String result = userService.readExcelFile(file);
return result;

}
}

UserService.java

import org.springframework.web.multipart.MultipartFile;

public interface UserService {

/**
* 读取excel中的数据,生成list
*/
String readExcelFile( MultipartFile file);
}

MeetingRoomServiceImpl.java

import java.util.List;

import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import com.ccd.user.model.UserTest;
import com.ccd.user.service.UserService;
import com.ccd.util.ReadExcel;

@Service
public class MeetingRoomServiceImpl implements UserService{
@Override
public String readExcelFile(MultipartFile file) {
String result ="";
//创建处理EXCEL的类
ReadExcel readExcel=new ReadExcel();
//解析excel，获取上传的事件单
List<UserTest> useList = readExcel.getExcelInfo(file);
//至此已经将excel中的数据转换到list里面了,接下来就可以操作list,可以进行保存到数据库,或者其他操作,
//和你具体业务有关,这里不做具体的示范
if(useList != null && !useList.isEmpty()){
result = "chenggong";
}else{
result = "shibai";
}
return result;
}

}

ReadExcel.java

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
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 com.ccd.user.model.UserTest;

public class ReadExcel {
//总行数
private int totalRows = 0;
//总条数
private int totalCells = 0;
//错误信息接收器
private String errorMsg;
//构造方法
public ReadExcel(){}
//获取总行数
public int getTotalRows()  { return totalRows;}
//获取总列数
public int getTotalCells() {  return totalCells;}
//获取错误信息
public String getErrorInfo() { return errorMsg; }

/**
* 读EXCEL文件，获取信息集合
* @param fielName
* @return
*/
public List<UserTest> getExcelInfo(MultipartFile mFile) {
String fileName = mFile.getOriginalFilename();//获取文件名
List<UserTest> userList=null;
try {
if (!validateExcel(fileName)) {// 验证文件名是否合格
return null;
}
boolean isExcel2003 = true;// 根据文件名判断文件是2003版本还是2007版本
if (isExcel2007(fileName)) {
isExcel2003 = false;
}
userList = createExcel(mFile.getInputStream(), isExcel2003);
} catch (Exception e) {
e.printStackTrace();
}
System.out.println("ReadExcel工具类类 文件名  :"+fileName);
System.out.println(userList);
return userList;
}

/**
* 根据excel里面的内容读取客户信息
* @param is 输入流
* @param isExcel2003 excel是2003还是2007版本
* @return
* @throws IOException
*/
public List<UserTest> createExcel(InputStream is, boolean isExcel2003) {
List<UserTest> userList=null;
try{
Workbook wb = null;
if (isExcel2003) {// 当excel是2003时,创建excel2003
wb = new HSSFWorkbook(is);
} else {// 当excel是2007时,创建excel2007
wb = new XSSFWorkbook(is);
}
userList = readExcelValue(wb);// 读取Excel里面客户的信息
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("根据excel里面的内容读取客户信息 ReadExcel工具类类 文件名  :");
System.out.println(userList);
return userList;
}

/**
* 读取Excel里面客户的信息
* @param wb
* @return
*/
private List<UserTest> readExcelValue(Workbook wb) {
// 得到第一个shell
Sheet sheet = wb.getSheetAt(0);
// 得到Excel的行数
this.totalRows = sheet.getPhysicalNumberOfRows();
// 得到Excel的列数(前提是有行数)
if (totalRows > 1 && sheet.getRow(0) != null) {
this.totalCells = sheet.getRow(0).getPhysicalNumberOfCells();
}
List<UserTest> userList = new ArrayList<UserTest>();
// 循环Excel行数
for (int r = 1; r < totalRows; r++) {
Row row = sheet.getRow(r);
if (row == null){
continue;
}
UserTest user = new UserTest();
// 循环Excel的列
for (int c = 0; c < this.totalCells; c++) {
Cell cell = row.getCell(c);
if (null != cell) {
if (c == 0) {
//如果是纯数字,比如你写的是25,cell.getNumericCellValue()获得是25.0,通过截取字符串去掉.0获得25
if(cell.getCellType() == HSSFCell.CELL_TYPE_NUMERIC){
String name = String.valueOf(cell.getNumericCellValue());
user.setName(name.substring(0, name.length()-2>0?name.length()-2:1));//名称
}else{
user.setName(cell.getStringCellValue());//名称
}
} else if (c == 1) {
if(cell.getCellType() == HSSFCell.CELL_TYPE_NUMERIC){
String sex = String.valueOf(cell.getNumericCellVa
b04d
lue());
user.setSex(sex.substring(0, sex.length()-2>0?sex.length()-2:1));//性别
}else{
user.setSex(cell.getStringCellValue());//性别
}
} else if (c == 2){
if(cell.getCellType() == HSSFCell.CELL_TYPE_NUMERIC){
String age = String.valueOf(cell.getNumericCellValue());
user.setAge(age.substring(0, age.length()-2>0?age.length()-2:1));//年龄
}else{
user.setAge(cell.getStringCellValue());//年龄
}
}
}
}
// 添加到list
userList.add(user);
}
return userList;
}

/**
* 验证EXCEL文件
*
* @param filePath
* @return
*/
public boolean validateExcel(String filePath) {
if (filePath == null || !(isExcel2003(filePath) || isExcel2007(filePath))) {
errorMsg = "文件名不是excel格式";
return false;
}
return true;
}

// @描述：是否是2003的excel，返回true是2003
public static boolean isExcel2003(String filePath)  {
return filePath.matches("^.+\\.(?i)(xls)$");
}

//@描述：是否是2007的excel，返回true是2007
public static boolean isExcel2007(String filePath)  {
return filePath.matches("^.+\\.(?i)(xlsx)$");
}
}