table of Contents

JavaBean converted into the red part of Excel document as the key code

The following code is converted to lead-in portion that is a JavaBean excel red part of the key codes

Download excel_io-poi3.14 excel_io-poi3.17

excel_io.jar tool is dependent on the development and poi poi-ooxml two apached a jar made of, respectively, 3.14 and 3.17 dependent on both versions, please download the user's attention if the name is dependent excel_io-poi3.14.jar na poi version is 3.14. If the name is excel_io-poi3.17.jar, then that is dependent on the 3.17 version of poi.

Maven introduction of the code

POI introduced 3.14

<dependency>
      <groupId>org.apache.poi</groupId>
      <artifactId>poi</artifactId>
      <version>3.14</version>
  </dependency>
  <dependency>
      <groupId>org.apache.poi</groupId>
      <artifactId>poi-ooxml</artifactId>
      <version>3.14</version>
  </dependency>

POI introduced 3.17

  <dependency>
      <groupId>org.apache.poi</groupId>
      <artifactId>poi</artifactId>
      <version>3.17</version>
  </dependency>
  <dependency>
      <groupId>org.apache.poi</groupId>
      <artifactId>poi-ooxml</artifactId>
      <version>3.17</version>
  </dependency>

excel_io.jar use Description

Setting JavaBean

Javabean properties required for use on excel document fields and corresponding annotations @ExcelProperty (ZH = "", Sequence = 0);
@ExcelProperty annotation has three attributes are represented zh Chinese excel in the corresponding field name (required), the sequence shown in Sequence cexcel is, from zero, if not set to 0 by default all fields. whether the requisite set must have a value, the property is not being used in the tool, please pay attention to subsequent updates.

excel documents to use the JavaBean

Create a class object Excel, Excel provides two class constructors are Excel (Class <T> clasz), Excel (Class <T> clasz, String sheetName)
Excel (Class <T> clasz) incoming and excel documents corresponding JavaBean, but the excel sheet table must be the first. Or the import fails.
Excel (Class <T> clasz, String sheetName) the difference between the front and a constructor is passed a sheet table name.
Call readExcel (InputStream fis) method returns a List <T> objects;

JavaBean to use excel document

As before, the class object to create Excel, no longer tired.
Call createExcel (List <T> objs) , a set of parameters of objects JavaBean object data is not equipped. Returns a Workbook object, a Workbook object directly call the Write ( OutputStream Stream ) to generate excel documents.

JavaBean settings

@ExcelProperty(zh="生日",sequence=3)
 private Date birthday;
 @ExcelProperty(zh="姓名",sequence=0)
 private String name;
 @ExcelProperty(zh="手机号码",sequence=2)
 private String phoneNum;
 @ExcelProperty(zh="年龄",sequence=1)
 private int age;


setter\getter……

JavaBean converted into the red part of Excel document as the key code

  File file = new File("F:/poi/test/type.xlsx");
  FileOutputStream fos = new FileOutputStream(file);
  Excel<People> excel = new Excel<>(People.class);
  List<People> peoples = new ArrayList<People>();
  for(int i=0;i<10;i++) {
       People p =new People();
       p.setName("Mac"+i);
       p.setAge(20+i);
       p.setPhoneNum("1366111111"+i);
       try {
            p.setBirthday(new SimpleDateFormat("yyyy/MM/dd").parse("2018/10/31"));
       } catch (ParseException e) {
            e.printStackTrace();
       }
       peoples.add(p);
  }
  Workbook workbook =excel.createExcel(peoples);
  workbook.write(fos);

The following code is converted to lead-in portion that is a JavaBean excel red part of the key codes

 File file = new File("F:/poi/test/type.xlsx");
 Excel<People> excel = new Excel<>(People.class);
 InputStream fis = new FileInputStream(file);
 List<People> peoples = excel.readExcel(fis);
 for(People p:peoples) {
       System.out.println(p);
 }