JXLS2.4导出Excel

1.添加依赖：http://mvnrepository.com/artifact/org.jxls

<dependency>  

  <groupId>org.jxls</groupId>  

  <artifactId>jxls</artifactId>  

  <version>2.4.3</version>  

</dependency>

 

2.创建Excel模板

Jxls默认支持Apache JEXL表达式语言，用于在模板中操作Java对象的属性及方法，类似于EL表达式。

如图：

注：

Jxls利用Excel的批注声明各种命令，

jx:each()  这是一个遍历注释，默认向下增加一行。官网写可以横向遍历（增加direction 参数）

上图中：A1单元格的批注：jx:area(lastCell="D4")，定义模板区域是A1：D4

A4单元格的批注：jx:each(items="employees" var="employee" lastCell="D4")，定义Each循环命令 ，lastCell="D4 表示Each命令的操作区域是A4：D4

 

3.java代码

/**
 * 简单列表导出--将绩效大于2000的显示绿色，大于1000小于2000的显示黄色，小于1000的显示红色
 * @author chendd
 */
public class SimpleIfJxls {

   public static void main(String[] args) throws Exception {
      //构造集合数据
      List<Employee> employees = new ArrayList<Employee>();
      Calendar time = Calendar.getInstance();
      time.set(2015, 5, 20);
      Date date = time.getTime();
      employees.add(new Employee("lishengle" , date , new BigDecimal(5000) , new BigDecimal(800)));
      employees.add(new Employee("jiajitao" , date , new BigDecimal(6000) , new BigDecimal(1200)));
      employees.add(new Employee("jiangjunjian" , date , new BigDecimal(8500) , new BigDecimal(2500)));
      employees.add(new Employee("sunming" , date , new BigDecimal(17000) , new BigDecimal(1500)));
      employees.add(new Employee("chendd" , date , new BigDecimal(17000) , new BigDecimal(1500)));
      employees.add(new Employee("zenxianrong" , date , new BigDecimal(7500) , new BigDecimal(3500)));
      //载入模板
      InputStream is = SimpleIfJxls.class.getClass().getResourceAsStream("/cn/chendd/examples/templates/simpleIf.xls");
      Context context = new Context();
      context.putVar("employees", employees);
      context.putVar("title", "员工信息列表");
      OutputStream os = new FileOutputStream(new File("d:\\test\\out_simpleIf.xls"));
      //指定Sheet文件解析
      JxlsHelper.getInstance().processTemplate(is, os, context);
      os.flush();
      os.close();
      is.close();
   }

}

public class Employee {

   private String name;
   private Date birthDate;
   private BigDecimal payment;
   private BigDecimal bonus;

   public Employee() {
      super();
   }

   public Employee(String name, Date birthDate, BigDecimal payment,
         BigDecimal bonus) {
      super();
      this.name = name;
      this.birthDate = birthDate;
      this.payment = payment;
      this.bonus = bonus;
   }

   //省略getter/setter

}

更多参考：https://www.chendd.cn/information/viewInformation/other/224.a