先做模板，做成想要的格式样子保存，然后通过程序根据模板生成对应样式的Excel文件，代码简单。什么连接数据库查询然后将结果生成Excel文件就不讲了，放入List里面，然后套一下就行了，照老虎花猫。
准备：
1、相关jar包：
2、模板文件 ：
开始：
1、 先实体类：Staff.java
package myjxls;
/**
* 2014-3-17
* 8dou
* 实体
*/
public class Staff {
/**
* 名称
*/
private String name;
/**
* 薪资
*/
private Double payment;
/**
* 年终奖
*/
private Double bonus;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Double getPayment() {
return payment;
}
public void setPayment(Double payment) {
this.payment = payment;
}
public Double getBonus() {
return bonus;
}
public void setBonus(Double bonus) {
this.bonus = bonus;
}
public Staff(String name, Double payment, Double bonus) {
super();
this.name = name;
this.payment = payment;
this.bonus = bonus;
}
}
2、测试类 ChartTest.java
package myjxls;
/**
* 2014-3-17
* 8dou
* 测试JXLS根据模板样式导出Excel
*/
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import net.sf.jxls.transformer.XLSTransformer;
public class ChartTest {
/**
* @param args
*/
public static void main(String[] args) throws Exception {
List<Staff> staffs = new ArrayList<Staff>();
Staff s1 = new Staff("张三", 6000D, 3000D);
staffs.add(s1);
Staff s2 = new Staff("李四", 5000D, 2000D);
staffs.add(s2);
Staff s3 = new Staff("王五", 4000D, 1000D);
staffs.add(s3);
String srcFilePath = "e:/simple.xlsx";
String destFilePath = "e:/template-simple.xlsx";
Map<String, List<Staff>> beanParams = new HashMap<String, List<Staff>>();
beanParams.put("staffs", staffs);
XLSTransformer former = new XLSTransformer();
former.transformXLS(srcFilePath, beanParams, destFilePath);
System.out.println("the end !!!");
}
}
运行结束后看生成的Excel文件，template-simple.xlsx
如果是Web,需要下载可以看
// 下载
public static void doDownLoad(String path, String name,
HttpServletResponse response) {
try {
response.reset();
response.setHeader("Content-disposition",
"attachment;success=true;filename ="
+ URLEncoder.encode(name, "utf-8"));
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
OutputStream fos = null;
InputStream fis = null;
File uploadFile = new File(path);
fis = new FileInputStream(uploadFile);
bis = new BufferedInputStream(fis);
fos = response.getOutputStream();
bos = new BufferedOutputStream(fos);
// 弹出下载对话框
int bytesRead = 0;
byte[] buffer = new byte[8192];
while ((bytesRead = bis.read(buffer, 0, 8192)) != -1) {
bos.write(buffer, 0, bytesRead);
}
bos.flush();
fis.close();
bis.close();
fos.close();
bos.close();
} catch (Exception e) {
e.printStackTrace();
}
}
最后补充下Excel知识：在单元格里面将日期和时间显示在同一个单元格里面，自定义单元格式→yyyy-m-d hh:mm:ss
