package com.zc.excel;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
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.hssf.util.HSSFColor;
import org.apache.poi.ss.util.Region;
public class ExportExcel {
private HSSFWorkbook wb;
private HSSFSheet sheet;
public ExportExcel(HSSFWorkbook hssfWorkbook, HSSFSheet hssfSheet) {
super();
this.wb = hssfWorkbook;
this.sheet = hssfSheet;
}
/**
* 创建通用EXCEL头部
*
* @param headString
* 头部显示的字符
* @param colSum
* 该报表的列数
*/
@SuppressWarnings({ "deprecation", "unused" })
public void createNormalHead(String headString, int colSum) {
HSSFRow row = sheet.createRow(0);
// 设置第一行
HSSFCell cell = row.createCell(0);
row.setHeight((short) 1000);
HSSFCellStyle style = wb.createCellStyle();
// Font font1 = wb.createFont();
// font1.setColor((short)15);
// style.setFont(font1);
System.out.println("1111111111"+HSSFColor.GREEN.index);
HSSFFont font1 = wb.createFont();
font1.setColor(HSSFColor.RED.index);
style.setFont(font1);
style.setLocked(true);
style.setAlignment((short) -1);
// 定义单元格为字符串类型
cell.setCellType(HSSFCell.ENCODING_UTF_16);// 中文处理
cell.setCellValue(new HSSFRichTextString(headString));
// 指定合并区域
/**
* public Region(int rowFrom, short colFrom, int rowTo, short colTo)
*/
sheet.addMergedRegion(new Region(0, (short) 0, 0, (short) colSum));
// 定义单元格格式,添加单元格表样式,并添加到工作簿
HSSFCellStyle cellStyle = wb.createCellStyle();
// 设置单元格水平对齐类型
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 指定单元格居中对齐
cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 指定单元格垂直居中对齐
cellStyle.setWrapText(true);// 指定单元格自动换行
// 设置单元格字体
HSSFFont font = wb.createFont();
// font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
// font.setFontName("宋体");
// font.setFontHeight((short) 600);
// cellStyle.setFont(font);
cell.setCellStyle(cellStyle);
}
/**
* 创建通用报表第二行
*
* @param params
* 统计条件数组
* @param colSum
* 需要合并到的列索引
*/
@SuppressWarnings("deprecation")
public void createNormalTwoRow(String[] params, int colSum) {
// 创建第二行
HSSFRow row1 = sheet.createRow(1);
row1.setHeight((short) 400);
HSSFCell cell2 = row1.createCell(0);
cell2.setCellType(HSSFCell.ENCODING_UTF_16);
cell2.setCellValue(new HSSFRichTextString("时间:" + params[0] + "至"
+ params[1]));
// 指定合并区域
/**
* public Region(int rowFrom, short colFrom, int rowTo, short colTo)
*/
sheet.addMergedRegion(new Region(1, (short) 0, 1, (short) colSum));
HSSFCellStyle cellStyle = wb.createCellStyle();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 指定单元格居中对齐
cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 指定单元格垂直居中对齐
cellStyle.setWrapText(true);// 指定单元格自动换行
// 设置单元格字体
HSSFFont font = wb.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
font.setFontName("宋体");
font.setFontHeight((short) 250);
System.out.println("1111111111"+HSSFColor.RED.index);
font.setColor(HSSFColor.RED.index);
cellStyle.setFont(font);
cell2.setCellStyle(cellStyle);
}
/**
* 设置报表标题
*
* @param columHeader
* 标题字符串数组
*/
public void createColumHeader(String[] columHeader) {
// 设置列头 在第三行
HSSFRow row2 = sheet.createRow(2);
// 指定行高
row2.setHeight((short) 600);
HSSFCellStyle cellStyle = wb.createCellStyle();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 指定单元格居中对齐
cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 指定单元格垂直居中对齐
cellStyle.setWrapText(true);// 指定单元格自动换行
// 单元格字体
HSSFFont font = wb.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
font.setFontName("宋体");
font.setFontHeight((short) 250);
font.setColor(HSSFColor.RED.index);
cellStyle.setFont(font);
// 设置单元格背景色
cellStyle.setFillForegroundColor(HSSFColor.GREY_25_PERCENT.index);
cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
HSSFCell cell3 = null;
for (int i = 0; i < columHeader.length; i++) {
cell3 = row2.createCell(i);
cell3.setCellType(HSSFCell.ENCODING_UTF_16);
cell3.setCellStyle(cellStyle);
cell3.setCellValue(new HSSFRichTextString(columHeader[i]));
}
}
/**
* 创建内容单元格
*
* @param wb
* HSSFWorkbook
* @param row
* HSSFRow
* @param col
* short型的列索引
* @param align
* 对齐方式
* @param val
* 列值
*/
public void cteateCell(HSSFWorkbook wb, HSSFRow row, int col, short align,
String val) {
HSSFCell cell = row.createCell(col);
cell.setCellType(HSSFCell.ENCODING_UTF_16);
cell.setCellValue(new HSSFRichTextString(val));
HSSFCellStyle cellstyle = wb.createCellStyle();
cellstyle.setAlignment(align);
cell.setCellStyle(cellstyle);
}
/**
* 创建合计行
*
* @param colSum
* 需要合并到的列索引
* @param cellValue
*/
@SuppressWarnings("deprecation")
public void createLastSumRow(int colSum, String[] cellValue) {
HSSFCellStyle cellStyle = wb.createCellStyle();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 指定单元格居中对齐
cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 指定单元格垂直居中对齐
cellStyle.setWrapText(true);// 指定单元格自动换行
// 单元格字体
HSSFFont font = wb.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
font.setColor(HSSFColor.RED.index);
font.setFontName("宋体");
font.setFontHeight((short) 250);
cellStyle.setFont(font);
// 获取工作表最后一行
HSSFRow lastRow = sheet.createRow((short) (sheet.getLastRowNum() + 1));
HSSFCell sumCell = lastRow.createCell(0);
sumCell.setCellValue(new HSSFRichTextString("合计"));
sumCell.setCellStyle(cellStyle);
// 合并 最后一行的第零列-最后一行的第一列
sheet.addMergedRegion(new Region(sheet.getLastRowNum(), (short) 0,
sheet.getLastRowNum(), (short) colSum));// 指定合并区域
for (int i = 2; i < (cellValue.length + 2); i++) {
// 定义最后一行的第三列
sumCell = lastRow.createCell(i);
sumCell.setCellStyle(cellStyle);
// 定义数组 从0开始。
sumCell.setCellValue(new HSSFRichTextString(cellValue[i - 2]));
}
}
/**
* 输入EXCEL文件
*
* @param fileName
* 文件名
*/
public void outputExcel(String fileName) {
FileOutputStream fos = null;
try {
fos = new FileOutputStream(new File(fileName));
wb.write(fos);
fos.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* @return the sheet
*/
public HSSFSheet getSheet() {
return sheet;
}
/**
* @param sheet
* the sheet to set
*/
public void setSheet(HSSFSheet sheet) {
this.sheet = sheet;
}
/**
* @return the wb
*/
public HSSFWorkbook getWb() {
return wb;
}
/**
* @param wb
* the wb to set
*/
public void setWb(HSSFWorkbook wb) {
this.wb = wb;
}
}
package com.zc.excel;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
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.hssf.util.HSSFColor;
public class OutputExcel {
public void exec() throws UnsupportedEncodingException, FileNotFoundException{
System.out.println("helloworld");
List<Student> list = new ArrayList<Student>();
for(int i=0;i<500;i++){
Student student = new Student(i+1, "Jeelon", 21, "贵阳市 ", "15085943968",
'男');
list.add(student);
}
String fileName = "Excel.xls";
fileName = new String(fileName.getBytes("GBK"), "iso8859-1");
File f = new File("F:/"+fileName);
OutputStream output = new FileOutputStream(f);
BufferedOutputStream bufferedOutPut = new BufferedOutputStream(output);
// 定义单元格报头
String worksheetTitle = "Excel导出Student信息";
HSSFWorkbook wb = new HSSFWorkbook();
// 创建单元格样式
HSSFCellStyle cellStyleTitle = wb.createCellStyle();
// 指定单元格居中对齐
cellStyleTitle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
// 指定单元格垂直居中对齐
cellStyleTitle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
// 指定当单元格内容显示不下时自动换行
cellStyleTitle.setWrapText(true);
// ------------------------------------------------------------------
HSSFCellStyle cellStyle = wb.createCellStyle();
// 指定单元格居中对齐
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
// 指定单元格垂直居中对齐
cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
// 指定当单元格内容显示不下时自动换行
cellStyle.setWrapText(true);
// ------------------------------------------------------------------
// 设置单元格字体
HSSFFont font = wb.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
font.setFontName("宋体");
font.setFontHeight((short) 200);
font.setColor(HSSFColor.GREEN.index);
cellStyleTitle.setFont(font);
// 工作表名
String id = "id";
String name = "name";
String age = "age";
String address = "address";
String tel = "tel";
String sex = "sex";
HSSFSheet sheet = wb.createSheet();
ExportExcel exportExcel = new ExportExcel(wb, sheet);
// 创建报表头部
exportExcel.createNormalHead(worksheetTitle, 6);
// 定义第一行
HSSFRow row1 = sheet.createRow(1);
HSSFCell cell1 = row1.createCell(0);
//第一行第一列
cell1.setCellStyle(cellStyleTitle);
cell1.setCellValue(new HSSFRichTextString(id));
//第一行第er列
cell1 = row1.createCell(1);
cell1.setCellStyle(cellStyleTitle);
cell1.setCellValue(new HSSFRichTextString(name));
//第一行第san列
cell1 = row1.createCell(2);
cell1.setCellStyle(cellStyleTitle);
cell1.setCellValue(new HSSFRichTextString(age));
//第一行第si列
cell1 = row1.createCell(3);
cell1.setCellStyle(cellStyleTitle);
cell1.setCellValue(new HSSFRichTextString(address));
//第一行第wu列
cell1 = row1.createCell(4);
cell1.setCellStyle(cellStyleTitle);
cell1.setCellValue(new HSSFRichTextString(tel));
//第一行第liu列
cell1 = row1.createCell(5);
cell1.setCellStyle(cellStyleTitle);
cell1.setCellValue(new HSSFRichTextString(sex));
//第一行第qi列
cell1 = row1.createCell(6);
cell1.setCellStyle(cellStyleTitle);
cell1.setCellValue(new HSSFRichTextString(sex));
//第一行第qi列
cell1 = row1.createCell(7);
cell1.setCellStyle(cellStyleTitle);
cell1.setCellValue(new HSSFRichTextString(tel));
//定义第二行
HSSFRow row = sheet.createRow(2);
HSSFCell cell = row.createCell(1);
Student student = new Student();
for (int i = 0; i < list.size(); i++) {
student = list.get(i);
row = sheet.createRow(i + 2);
cell = row.createCell(0);
cell.setCellStyle(cellStyle);
cell.setCellValue(new HSSFRichTextString(student.getId() + ""));
cell = row.createCell(1);
cell.setCellStyle(cellStyle);
cell.setCellValue(new HSSFRichTextString(student.getName()));
cell = row.createCell(2);
cell.setCellStyle(cellStyle);
cell.setCellValue(new HSSFRichTextString(student.getAge() + ""));
cell = row.createCell(3);
cell.setCellStyle(cellStyle);
cell.setCellValue(new HSSFRichTextString(student.getAddress() + ""));
cell = row.createCell(4);
cell.setCellStyle(cellStyle);
cell.setCellValue(new HSSFRichTextString(student.getAddress()));
cell = row.createCell(5);
cell.setCellStyle(cellStyle);
cell.setCellValue(new HSSFRichTextString(student.getTel()));
cell = row.createCell(6);
cell.setCellValue(new HSSFRichTextString(String.valueOf(student.getSex())));
cell.setCellStyle(cellStyle);
cell = row.createCell(7);
cell.setCellValue(new HSSFRichTextString(String.valueOf(student.getSex())));
cell.setCellStyle(cellStyle);
}
try {
bufferedOutPut.flush();
wb.write(bufferedOutPut);
bufferedOutPut.close();
} catch (IOException e) {
e.printStackTrace();
System.out.println("Output is closed ");
} finally {
list.clear();
}
}
}
package com.zc.excel;
public class Student {
private int id;
private String name ;
private int age;
private String address;
private String tel;
private char sex;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getTel() {
return tel;
}
public void setTel(String tel) {
this.tel = tel;
}
public char getSex() {
return sex;
}
public void setSex(char sex) {
this.sex = sex;
}
@Override
public String toString() {
return "Student [id=" + id + ", name=" + name + ", age=" + age
+ ", address=" + address + ", tel=" + tel + ", sex=" + sex
+ "]";
}
public Student(int id, String name, int age, String address, String tel,
char sex) {
super();
this.id = id;
this.name = name;
this.age = age;
this.address = address;
this.tel = tel;
this.sex = sex;
}
public Student() {
super();
}
}
package com.zc.excel;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
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.hssf.util.HSSFColor;
public class Excel extends HttpServlet {
public Excel() {
super();
}
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
this.doPost(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
System.out.println("helloworld");
List<Student> list = new ArrayList<Student>();
Student student1 = new Student(1, "Jeelon", 21, "贵阳市 ", "15085943968",
'男');
Student student2 = new Student(2, "fengxu", 21, "贵阳市 ", "15085943968",
'男');
Student student3 = new Student(3, "jerry", 21, "贵阳市 ", "15085943968",
'男');
Student student4 = new Student(4, "merry", 21, "贵阳市 ", "15085943968",
'男');
Student student5 = new Student(5, "lariiy", 21, "贵阳市 ", "15085943968",
'男');
Student student6 = new Student(6, "monr", 21, "贵阳市 ", "15085943968",
'男');
Student student7 = new Student(7, "join", 21, "贵阳市 ", "15085943968",
'男');
Student student8 = new Student(8, "jay chou", 21, "贵阳市 ",
"15085943968", '男');
Student student9 = new Student(9, "laonb", 21, "贵阳市 ", "15085943968",
'男');
Student student0 = new Student(0, "mudg", 21, "贵阳市 ", "15085943968",
'男');
list.add(student1);
list.add(student2);
list.add(student3);
list.add(student4);
list.add(student5);
list.add(student6);
list.add(student7);
list.add(student8);
list.add(student9);
list.add(student0);
String fileName = "导出Excel.xls";
fileName = new String(fileName.getBytes("GBK"), "iso8859-1");
response.reset();
response.setHeader("Content-Disposition", "attachment;filename="
+ fileName);// 指定下载的文件名
response.setContentType("application/vnd.ms-excel");
response.setHeader("Pragma", "no-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);
OutputStream output = response.getOutputStream();
BufferedOutputStream bufferedOutPut = new BufferedOutputStream(output);
// 定义单元格报头
String worksheetTitle = "Excel导出Student信息";
HSSFWorkbook wb = new HSSFWorkbook();
// 创建单元格样式
HSSFCellStyle cellStyleTitle = wb.createCellStyle();
// 指定单元格居中对齐
cellStyleTitle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
// 指定单元格垂直居中对齐
cellStyleTitle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
// 指定当单元格内容显示不下时自动换行
cellStyleTitle.setWrapText(true);
// ------------------------------------------------------------------
HSSFCellStyle cellStyle = wb.createCellStyle();
// 指定单元格居中对齐
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
// 指定单元格垂直居中对齐
cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
// 指定当单元格内容显示不下时自动换行
cellStyle.setWrapText(true);
// ------------------------------------------------------------------
// 设置单元格字体
HSSFFont font = wb.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
font.setFontName("宋体");
font.setFontHeight((short) 200);
cellStyleTitle.setFont(font);
// 工作表名
String id = "id";
String name = "name";
String age = "age";
String address = "address";
String tel = "tel";
String sex = "sex";
HSSFSheet sheet = wb.createSheet();
ExportExcel exportExcel = new ExportExcel(wb, sheet);
// 创建报表头部
exportExcel.createNormalHead(worksheetTitle, 6);
// 定义第一行
HSSFRow row1 = sheet.createRow(1);
HSSFCell cell1 = row1.createCell(0);
//第一行第一列
cell1.setCellStyle(cellStyleTitle);
cell1.setCellValue(new HSSFRichTextString(id));
//第一行第er列
cell1 = row1.createCell(1);
cell1.setCellStyle(cellStyleTitle);
cell1.setCellValue(new HSSFRichTextString(name));
//第一行第san列
cell1 = row1.createCell(2);
cell1.setCellStyle(cellStyleTitle);
cell1.setCellValue(new HSSFRichTextString(age));
//第一行第si列
cell1 = row1.createCell(3);
cell1.setCellStyle(cellStyleTitle);
cell1.setCellValue(new HSSFRichTextString(address));
//第一行第wu列
cell1 = row1.createCell(4);
cell1.setCellStyle(cellStyleTitle);
cell1.setCellValue(new HSSFRichTextString(tel));
//第一行第liu列
cell1 = row1.createCell(5);
cell1.setCellStyle(cellStyleTitle);
cell1.setCellValue(new HSSFRichTextString(sex));
//第一行第qi列
cell1 = row1.createCell(6);
cell1.setCellStyle(cellStyleTitle);
cell1.setCellValue(new HSSFRichTextString(sex));
//定义第二行
HSSFRow row = sheet.createRow(2);
HSSFCell cell = row.createCell(1);
Student student = new Student();
for (int i = 0; i < list.size(); i++) {
student = list.get(i);
row = sheet.createRow(i + 2);
cell = row.createCell(0);
cell.setCellStyle(cellStyle);
cell.setCellValue(new HSSFRichTextString(student.getId() + ""));
cell = row.createCell(1);
cell.setCellStyle(cellStyle);
cell.setCellValue(new HSSFRichTextString(student.getName()));
cell = row.createCell(2);
cell.setCellStyle(cellStyle);
cell.setCellValue(new HSSFRichTextString(student.getAge() + ""));
cell = row.createCell(3);
cell.setCellStyle(cellStyle);
cell.setCellValue(new HSSFRichTextString(student.getAddress() + ""));
cell = row.createCell(4);
cell.setCellStyle(cellStyle);
cell.setCellValue(new HSSFRichTextString(student.getAddress()));
cell = row.createCell(5);
cell.setCellStyle(cellStyle);
cell.setCellValue(new HSSFRichTextString(student.getTel()));
cell = row.createCell(6);
cell.setCellValue(new HSSFRichTextString(String.valueOf(student.getSex())));
cell.setCellStyle(cellStyle);
}
try {
bufferedOutPut.flush();
wb.write(bufferedOutPut);
bufferedOutPut.close();
} catch (IOException e) {
e.printStackTrace();
System.out.println("Output is closed ");
} finally {
list.clear();
}
}
public void init() throws ServletException {
}
}
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java使用POI导出 Excel+图片工具类 ,里面含有poi jar包,只调用接口即可直接保存Excel。使用的时候需先把数据封装,具体包装需根据实际导出数据进行处理。文件demo中只提供包装格式。
在这个“POI导出Excel表格”的实例中,我们将深入探讨如何利用Apache POI进行Excel文件的导入与导出操作。 首先,我们需要在项目中集成Apache POI库。如果你使用的是Maven,可以在pom.xml文件中添加以下依赖: ```...
以上就是使用Java POI导出Excel的基本步骤。你可以根据实际需求调整代码,例如添加数据遍历、样式设置、图表生成等功能。确保正确管理资源,避免内存泄漏,特别是在服务器端处理大量数据时。记得在完成后关闭工作簿...
"poi导出excel需要的jar"指的是在使用Apache POI进行Excel导出时,你需要包含特定的JAR依赖文件。 首先,要实现POI导出Excel的功能,你需要下载Apache POI相关的JAR文件。这些文件通常包括以下核心组件: 1. **poi...
在使用Apache POI导出Excel时,首先需要创建一个`XSSFWorkbook`对象作为工作簿,然后通过工作簿创建`XSSFSheet`对象代表工作表。例如: ```java XSSFWorkbook workbook = new XSSFWorkbook(); XSSFSheet sheet =...
Java实现POI导出Excel是Java开发者常用的一种技术,用于生成和操作Microsoft Office Excel文件。在Java中,Apache POI库提供了对微软Office文档格式的支持,包括读取和写入Excel文件。这篇博客文章...
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POI导出Excel参考方法 POI(Poor Obfuscation Implementation)是一个Java的API,用于操作Microsoft Office文档,包括Excel、Word、PowerPoint等。下面是POI导出Excel参考方法的相关知识点: 1. POI的基本概念 ...
在这个场景中,我们关注的是如何使用POI来创建一个功能丰富的Excel导出工具类,它能够自动设置标题、列名、文件名,并且支持插入图片以及合并单元格。下面将详细介绍这些功能的实现。 首先,要创建一个Excel工作簿...
在本示例中,"poi导出excel demo"指的是使用Apache POI库创建和导出Excel文件的演示。这个项目可能包含了一个或多个Java源代码文件,展示了如何使用POI API来生成Excel工作簿、工作表、单元格等内容。 Apache POI ...
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4. **导出Excel**:最后,`jxls-poi`会生成一个新的Excel文件,其中包含了从JSON数据填充后的内容。你可以选择保存到本地或者直接通过HTTP响应发送给用户下载。 具体代码示例可能如下: ```java import org.jxls....