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public class Student
{
//private int sid;
private String name;
private String age;
public Student()
{
//super();
}
public Student( String name, String age)
{
//super();
//this.sid = sid;
this.name = name;
this.age = age;
}
//public int getSid()
//{
//return sid;
//}
//public void setSid(int sid)
//{
// this.sid = sid;
//}
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;
}
@Override
public String toString()
{
return ";name=" + name + ";age=" + age;
}
}
import java.io.FileOutputStream;
import java.text.SimpleDateFormat;
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.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
public class CreateSimpleExcelToDisk
{
/**
* @功能:手工构建一个简单格式的Excel
*/
private static List<Student> getStudent() throws Exception
{
List list = new ArrayList();
SimpleDateFormat df = new SimpleDateFormat("yyyy-mm-dd");
Student user1 = new Student("1", "张三");
Student user2 = new Student("2", "李四");
Student user3 = new Student("3", "王五");
list.add(user1);
list.add(user2);
list.add(user3);
return list;
}
public static void main(String[] args) throws Exception
{
// 第一步,创建一个webbook,对应一个Excel文件
HSSFWorkbook wb = new HSSFWorkbook();
// 第二步,在webbook中添加一个sheet,对应Excel文件中的sheet
HSSFSheet sheet = wb.createSheet("学生表一");
// 第三步,在sheet中添加表头第0行,注意老版本poi对Excel的行数列数有限制short
HSSFRow row = sheet.createRow((int) 0);
// 第四步,创建单元格,并设置值表头 设置表头居中
HSSFCellStyle style = wb.createCellStyle();
style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 创建一个居中格式
HSSFCell cell = row.createCell((short) 0);
cell.setCellValue("学号");
cell.setCellStyle(style);
cell = row.createCell((short) 1);
cell.setCellValue("姓名");
cell.setCellStyle(style);
cell = row.createCell((short) 2);
cell.setCellValue("年龄");
cell.setCellStyle(style);
cell = row.createCell((short) 3);
cell.setCellValue("生日");
cell.setCellStyle(style);
// 第五步,写入实体数据 实际应用中这些数据从数据库得到,
List list = CreateSimpleExcelToDisk.getStudent();
for (int i = 0; i < list.size(); i++)
{
row = sheet.createRow((int) i + 1);
Student stu = (Student) list.get(i);
// 第四步,创建单元格,并设置值
row.createCell((short) 0).setCellValue(stu.getName());
row.createCell((short) 1).setCellValue(stu.getName());
row.createCell((short) 2).setCellValue(stu.getAge());
// cell = row.createCell((short) 3);
// cell.setCellValue(new SimpleDateFormat("yyyy-mm-dd").format(stu.getName()));
}
// 第六步,将文件存到指定位置
try
{
FileOutputStream fout = new FileOutputStream("D:/students.xls");
wb.write(fout);
fout.close();
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
private OnClickListener listener_execl=new OnClickListener()
{
public void onClick(View v)
{
CreateSimpleExcelToDisk disk = new CreateSimpleExcelToDisk();
try {
Toast.makeText(Chapter22Test1.this, "点击之前", Toast.LENGTH_SHORT).show();
disk.main_todisk();
Toast.makeText(Chapter22Test1.this, "点击成功", Toast.LENGTH_SHORT).show();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
};
package com.iaiai.activity;
import java.io.FileOutputStream;
import java.text.SimpleDateFormat;
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.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import android.util.Log;
import com.szy.sqlite.model.Student;
public class CreateSimpleExcelToDisk
{
/**
* @功能:手工构建一个简单格式的Excel
*/
private List<Student> getStudent() throws Exception
{
List list = new ArrayList();
SimpleDateFormat df = new SimpleDateFormat("yyyy-mm-dd");
Student user1 = new Student("1", "张三");
Student user2 = new Student("2", "李四");
Student user3 = new Student("3", "王五");
list.add(user1);
list.add(user2);
list.add(user3);
return list;
}
public void main_todisk() throws Exception
{
Log.i("TAG", "jinlail");
// 第一步,创建一个webbook,对应一个Excel文件
HSSFWorkbook wb = new HSSFWorkbook();
// 第二步,在webbook中添加一个sheet,对应Excel文件中的sheet
HSSFSheet sheet = wb.createSheet("1");
// 第三步,在sheet中添加表头第0行,注意老版本poi对Excel的行数列数有限制short
HSSFRow row = sheet.createRow((int) 0);
// 第四步,创建单元格,并设置值表头 设置表头居中
HSSFCellStyle style = wb.createCellStyle();
style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 创建一个居中格式
HSSFCell cell = row.createCell((short) 0);
cell.setCellValue("id");
cell.setCellStyle(style);
cell = row.createCell((short) 1);
cell.setCellValue("name");
cell.setCellStyle(style);
cell = row.createCell((short) 2);
cell.setCellValue("age");
cell.setCellStyle(style);
cell = row.createCell((short) 3);
cell.setCellValue("birthday");
cell.setCellStyle(style);
// 第五步,写入实体数据 实际应用中这些数据从数据库得到,
List list = getStudent();
for (int i = 0; i < list.size(); i++)
{
row = sheet.createRow((int) i + 1);
Student stu = (Student) list.get(i);
// 第四步,创建单元格,并设置值
row.createCell((short) 0).setCellValue(stu.getName());
row.createCell((short) 1).setCellValue(stu.getName());
row.createCell((short) 2).setCellValue(stu.getAge());
// cell = row.createCell((short) 3);
// cell.setCellValue(new SimpleDateFormat("yyyy-mm-dd").format(stu.getName()));
}
// 第六步,将文件存到指定位置
try
{
FileOutputStream fout = new FileOutputStream("D:/students.xls");
wb.write(fout);
fout.close();
}
catch (Exception e)
{
e.printStackTrace();
}
}
}