今天给各位分享excelutiljava的知识，其中也会对进行解释，如果能碰巧解决你现在面临的问题，别忘了关注本站，现在开始吧！
本文目录一览：
1、如何用Java导出数据存到excel里面2、如何用Java将excel数据导入数据库3、Java对Excel解析(求助)
如何用Java导出数据存到excel里面
java中jxl导出数据到excel的例子
import jxl.*;
import jxl.write.*;
import java.io.*;
import java.io.File.*;
import java.util.*;
public class excel
{
public static void main(String[] args)
{
String targetfile = “c:/out.xls”;//输出的excel文件名
String worksheet = “List”;//输出的excel文件工作表名
String[] title = {“ID”,”NAME”,”DESCRIB”};//excel工作表的标题
WritableWorkbook workbook;
try
{
//创建可写入的Excel工作薄,运行生成的文件在tomcat/bin下
//workbook = Workbook.createWorkbook(new File(“output.xls”));
System.out.println(“begin”);
OutputStream os=new FileOutputStream(targetfile);
workbook=Workbook.createWorkbook(os);
WritableSheet sheet = workbook.createSheet(worksheet, 0); //添加第一个工作表
//WritableSheet sheet1 = workbook.createSheet(“MySheet1”, 1); //可添加第二个工作
/*
jxl.write.Label label = new jxl.write.Label(0, 2, “A label record”); //put a label in cell A3, Label(column,row)
sheet.addCell(label);
*/
jxl.write.Label label;
for (int i=0; ititle.length; i++)
{
//Label(列号,行号 ,内容 )
label = new jxl.write.Label(i, 0, title[i]); //put the title in row1
sheet.addCell(label);
}
//下列添加的对字体等的设置均调试通过，可作参考用
//添加数字
jxl.write.Number number = new jxl.write.Number(3, 4, 3.14159); //put the number 3.14159 in cell D5
sheet.addCell(number);
//添加带有字型Formatting的对象
jxl.write.WritableFont wf = new jxl.write.WritableFont(WritableFont.TIMES,10,WritableFont.BOLD,true);
jxl.write.WritableCellFormat wcfF = new jxl.write.WritableCellFormat(wf);
jxl.write.Label labelCF = new jxl.write.Label(4,4,”文本”,wcfF);
sheet.addCell(labelCF);
//添加带有字体颜色,带背景颜色 Formatting的对象
jxl.write.WritableFont wfc = new jxl.write.WritableFont(WritableFont.ARIAL,10,WritableFont.BOLD,false,jxl.format.UnderlineStyle.NO_UNDERLINE,jxl.format.Colour.RED);
jxl.write.WritableCellFormat wcfFC = new jxl.write.WritableCellFormat(wfc);
wcfFC.setBackground(jxl.format.Colour.BLUE);
jxl.write.Label labelCFC = new jxl.write.Label(1,5,”带颜色”,wcfFC);
sheet.addCell(labelCFC);
//添加带有formatting的Number对象
jxl.write.NumberFormat nf = new jxl.write.NumberFormat(“#.##”);
jxl.write.WritableCellFormat wcfN = new jxl.write.WritableCellFormat(nf);
jxl.write.Number labelNF = new jxl.write.Number(1,1,3.1415926,wcfN);
sheet.addCell(labelNF);
//3.添加Boolean对象
jxl.write.Boolean labelB = new jxl.write.Boolean(0,2,false);
sheet.addCell(labelB);
//4.添加DateTime对象
jxl.write.DateTime labelDT = new jxl.write.DateTime(0,3,new java.util.Date());
sheet.addCell(labelDT);
//添加带有formatting的DateFormat对象
jxl.write.DateFormat df = new jxl.write.DateFormat(“ddMMyyyyhh:mm:ss”);
jxl.write.WritableCellFormat wcfDF = new jxl.write.WritableCellFormat(df);
jxl.write.DateTime labelDTF = new jxl.write.DateTime(1,3,new java.util.Date(),wcfDF);
sheet.addCell(labelDTF);
//和宾单元格
//sheet.mergeCells(int col1,int row1,int col2,int row2);//左上角到右下角
sheet.mergeCells(4,5,8,10);//左上角到右下角
wfc = new jxl.write.WritableFont(WritableFont.ARIAL,40,WritableFont.BOLD,false,jxl.format.UnderlineStyle.NO_UNDERLINE,jxl.format.Colour.GREEN);
jxl.write.WritableCellFormat wchB = new jxl.write.WritableCellFormat(wfc);
wchB.setAlignment(jxl.format.Alignment.CENTRE);
labelCFC = new jxl.write.Label(4,5,”单元合并”,wchB);
sheet.addCell(labelCFC); //
//设置边框
jxl.write.WritableCellFormat wcsB = new jxl.write.WritableCellFormat();
wcsB.setBorder(jxl.format.Border.ALL,jxl.format.BorderLineStyle.THICK);
labelCFC = new jxl.write.Label(0,6,”边框设置”,wcsB);
sheet.addCell(labelCFC);
workbook.write();
workbook.close();
}catch(Exception e)
{
e.printStackTrace();
}
System.out.println(“end”);
Runtime r=Runtime.getRuntime();
Process p=null;
//String cmd[]={“notepad”,”exec.java”};
String cmd[]={“C:\\Program Files\\Microsoft Office\\Office\\EXCEL.EXE”,”out.xls”};
try{
p=r.exec(cmd);
}
catch(Exception e){
System.out.println(“error executing: “+cmd[0]);
}
}
}
如何用Java将excel数据导入数据库
我前端时间要导数据，，随便找代码弄了一个 能用的，贴给你看看。
public String uploadExcel(HttpServletRequest request) throws Exception {
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
System.out.println(“通过传统方式form表单提交方式导入excel文件！”);
InputStream in =null;
ListListObject listob = null;
MultipartFile file = multipartRequest.getFile(“upfile”);
if(file.isEmpty()){
throw new Exception(“文件不存在！”);
}
in = file.getInputStream();
listob = new ImportExcelUtil().getBankListByExcel(in,file.getOriginalFilename());
in.close();
//该处可调用service相应方法进行数据保存到数据库中，现只对数据输出
for (int i = 0; i listob.size(); i++) {
ListObject lo = listob.get(i);
System.out.println(lo.get(0));
System.out.println(lo.get(1));
Word word = new Word();
word.setId(UUIDTools.getUUID());
word.setChinese(lo.get(1).toString());
word.setEnglish(lo.get(0).toString());
wordService.saveEnglishWord(word);
/* InfoVo vo = new InfoVo();
vo.setCode(String.valueOf(lo.get(0)));
vo.setName(String.valueOf(lo.get(1)));
vo.setDate(String.valueOf(lo.get(2)));
vo.setMoney(String.valueOf(lo.get(3)));
System.out.println(“打印信息–机构:”+vo.getCode()+” 名称：”+vo.getName()+” 时间：”+vo.getDate()+” 资产：”+vo.getMoney()); */
}
return “result”;
}
ImportExcelUtil类的getBankListByExcel方法：
public ListListObject getBankListByExcel(InputStream in,String fileName) throws Exception{
ListListObject list = null;
//创建excel工作簿
Workbook work = this.getWorkbook(in,fileName);
Sheet sheet = null;
Row row = null;
Cell cell = null;
list = new ArrayListListObject();
//遍历Excel中所有的sheet
for (int i = 0; i work.getNumberOfSheets(); i++) {
sheet = work.getSheetAt(i);
if(sheet==null){continue;}
//遍历当前sheet中的所有行
for (int j = sheet.getFirstRowNum(); j sheet.getLastRowNum(); j++) {
row = sheet.getRow(j);
if(row==null||row.getFirstCellNum()==j){continue;}
//遍历所有的列
ListObject li = new ArrayListObject();
for (int y = row.getFirstCellNum(); y row.getLastCellNum(); y++) {
cell = row.getCell(y);
li.add(this.getCellValue(cell));
}
list.add(li);
}
}
// work.close();
return list;
}
前台弄个上传标签 访问这个action就行了。
Java对Excel解析(求助)
这篇blog主要是讲述java中poi读取excel，而excel的版本包括：2003-2007和2010两个版本， 即excel的后缀名为：xls和xlsx。
读取excel和MySQL相关： java的poi技术读取Excel数据到MySQL
代码如下
/**
*
*/
package com.b510.common;
/**
* @author Hongten
* @created 2014-5-21
*/
public class Common {
public static final String OFFICE_EXCEL_2003_POSTFIX = “xls”;
public static final String OFFICE_EXCEL_2010_POSTFIX = “xlsx”;
public static final String EMPTY = “”;
public static final String POINT = “.”;
public static final String LIB_PATH = “lib”;
public static final String STUDENT_INFO_XLS_PATH = LIB_PATH + “/student_info” + POINT + OFFICE_EXCEL_2003_POSTFIX;
public static final String STUDENT_INFO_XLSX_PATH = LIB_PATH + “/student_info” + POINT + OFFICE_EXCEL_2010_POSTFIX;
public static final String NOT_EXCEL_FILE = ” : Not the Excel file!”;
public static final String PROCESSING = “Processing…”;
}
/**
*
*/
package com.b510.excel;
import java.io.FileInputStream;
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.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import com.b510.common.Common;
import com.b510.excel.util.Util;
import com.b510.excel.vo.Student;
/**
* @author Hongten
* @created 2014-5-20
*/
public class ReadExcel {
/**
* read the Excel file
* @param path the path of the Excel file
* @return
* @throws IOException
*/
public ListStudent readExcel(String path) throws IOException {
if (path == null || Common.EMPTY.equals(path)) {
return null;
} else {
String postfix = Util.getPostfix(path);
if (!Common.EMPTY.equals(postfix)) {
if (Common.OFFICE_EXCEL_2003_POSTFIX.equals(postfix)) {
return readXls(path);
} else if (Common.OFFICE_EXCEL_2010_POSTFIX.equals(postfix)) {
return readXlsx(path);
}
} else {
System.out.println(path + Common.NOT_EXCEL_FILE);
}
}
return null;
}
/**
* Read the Excel 2010
* @param path the path of the excel file
* @return
* @throws IOException
*/
public ListStudent readXlsx(String path) throws IOException {
System.out.println(Common.PROCESSING + path);
InputStream is = new FileInputStream(path);
XSSFWorkbook xssfWorkbook = new XSSFWorkbook(is);
Student student = null;
ListStudent list = new ArrayListStudent();
// Read the Sheet
for (int numSheet = 0; numSheet xssfWorkbook.getNumberOfSheets(); numSheet++) {
XSSFSheet xssfSheet = xssfWorkbook.getSheetAt(numSheet);
if (xssfSheet == null) {
continue;
}
// Read the Row
for (int rowNum = 1; rowNum = xssfSheet.getLastRowNum(); rowNum++) {
XSSFRow xssfRow = xssfSheet.getRow(rowNum);
if (xssfRow != null) {
student = new Student();
XSSFCell no = xssfRow.getCell(0);
XSSFCell name = xssfRow.getCell(1);
XSSFCell age = xssfRow.getCell(2);
XSSFCell score = xssfRow.getCell(3);
student.setNo(getValue(no));
student.setName(getValue(name));
student.setAge(getValue(age));
student.setScore(Float.valueOf(getValue(score)));
list.add(student);
}
}
}
return list;
}
/**
* Read the Excel 2003-2007
* @param path the path of the Excel
* @return
* @throws IOException
*/
public ListStudent readXls(String path) throws IOException {
System.out.println(Common.PROCESSING + path);
InputStream is = new FileInputStream(path);
HSSFWorkbook hssfWorkbook = new HSSFWorkbook(is);
Student student = null;
ListStudent list = new ArrayListStudent();
// Read the Sheet
for (int numSheet = 0; numSheet hssfWorkbook.getNumberOfSheets(); numSheet++) {
HSSFSheet hssfSheet = hssfWorkbook.getSheetAt(numSheet);
if (hssfSheet == null) {
continue;
}
// Read the Row
for (int rowNum = 1; rowNum = hssfSheet.getLastRowNum(); rowNum++) {
HSSFRow hssfRow = hssfSheet.getRow(rowNum);
if (hssfRow != null) {
student = new Student();
HSSFCell no = hssfRow.getCell(0);
HSSFCell name = hssfRow.getCell(1);
HSSFCell age = hssfRow.getCell(2);
HSSFCell score = hssfRow.getCell(3);
student.setNo(getValue(no));
student.setName(getValue(name));
student.setAge(getValue(age));
student.setScore(Float.valueOf(getValue(score)));
list.add(student);
}
}
}
return list;
}
@SuppressWarnings(“static-access”)
private String getValue(XSSFCell xssfRow) {
if (xssfRow.getCellType() == xssfRow.CELL_TYPE_BOOLEAN) {
return String.valueOf(xssfRow.getBooleanCellValue());
} else if (xssfRow.getCellType() == xssfRow.CELL_TYPE_NUMERIC) {
return String.valueOf(xssfRow.getNumericCellValue());
} else {
return String.valueOf(xssfRow.getStringCellValue());
}
}
@SuppressWarnings(“static-access”)
private String getValue(HSSFCell hssfCell) {
if (hssfCell.getCellType() == hssfCell.CELL_TYPE_BOOLEAN) {
return String.valueOf(hssfCell.getBooleanCellValue());
} else if (hssfCell.getCellType() == hssfCell.CELL_TYPE_NUMERIC) {
return String.valueOf(hssfCell.getNumericCellValue());
} else {
return String.valueOf(hssfCell.getStringCellValue());
}
}
}
/**
*
*/
package com.b510.excel.client;
import java.io.IOException;
import java.util.List;
import com.b510.common.Common;
import com.b510.excel.ReadExcel;
import com.b510.excel.vo.Student;
/**
* @author Hongten
* @created 2014-5-21
*/
public class Client {
public static void main(String[] args) throws IOException {
String excel2003_2007 = Common.STUDENT_INFO_XLS_PATH;
String excel2010 = Common.STUDENT_INFO_XLSX_PATH;
// read the 2003-2007 excel
ListStudent list = new ReadExcel().readExcel(excel2003_2007);
if (list != null) {
for (Student student : list) {
System.out.println(“No. : ” + student.getNo() + “, name : ” + student.getName() + “, age : ” + student.getAge() + “, score : ” + student.getScore());
}
}
System.out.println(“======================================”);
// read the 2010 excel
ListStudent list1 = new ReadExcel().readExcel(excel2010);
if (list1 != null) {
for (Student student : list1) {
System.out.println(“No. : ” + student.getNo() + “, name : ” + student.getName() + “, age : ” + student.getAge() + “, score : ” + student.getScore());
}
}
}
}
/**
*
*/
package com.b510.excel.util;
import com.b510.common.Common;
/**
* @author Hongten
* @created 2014-5-21
*/
public class Util {
/**
* get postfix of the path
* @param path
* @return
*/
public static String getPostfix(String path) {
if (path == null || Common.EMPTY.equals(path.trim())) {
return Common.EMPTY;
}
if (path.contains(Common.POINT)) {
return path.substring(path.lastIndexOf(Common.POINT) + 1, path.length());
}
return Common.EMPTY;
}
}
/**
*
*/
package com.b510.excel.vo;
/**
* Student
*
* @author Hongten
* @created 2014-5-18
*/
public class Student {
/**
* id
*/
private Integer id;
/**
* 学号
*/
private String no;
/**
* 姓名
*/
private String name;
/**
* 学院
*/
private String age;
/**
* 成绩
*/
private float score;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getNo() {
return no;
}
public void setNo(String no) {
this.no = no;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAge() {
return age;
}
public void setAge(String age) {
this.age = age;
}
public float getScore() {
return score;
}
public void setScore(float score) {
this.score = score;
}
}
excelutiljava的介绍就聊到这里吧，感谢你花时间阅读本站内容，更多关于、excelutiljava的信息别忘了在本站进行查找喔。
微信扫一扫 
支付宝扫一扫 
