open-wexcel/src/test/java/ExampleTest.java

import com.wb.excel.api.WSheet;
import com.wb.excel.api.exception.TemplateNotMatchException;

import java.io.*;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

/**
 * 实例
 */
public class ExampleTest {

    public static void main(String[] args) throws IOException, NoSuchMethodException, IllegalAccessException, InvocationTargetException {
//        testTemplate();
//        testExport();
        testImport();
    }

    public static void testTemplate() {
        try {
            WSheet WSheet = new WSheet<>(User.class);
            output("user_template.xlsx", WSheet.getBytes());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void testExport() {

        try {
            //第一步,准备数据模型及数据，模型需要打上注解
            List<User> pos = new ArrayList();

            User user = new User();
            user.setWz("张三");
            user.setDate(new Date());
            user.setBr(true);
            user.setBt((byte) 1);
            user.setZf('A');
            user.setDzs((short) 1);
            user.setZs(1);
            user.setCzs((long) 1);
            user.setFd(1.0f);
            user.setSjd(1.0);
            pos.add(user);
            pos.add(user);

            //第二步,初始化数据
            WSheet<User> WSheet = new WSheet<>(pos);

            //第四步，导出xlsx文件
            output("user.xlsx", WSheet.getBytes());
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        }
    }

    public static void testImport() {
        try {
            File file = new File("user.xlsx");
            FileInputStream stream = new FileInputStream(file);

            byte[] bytes = new byte[stream.available()];
            stream.read(bytes);

            WSheet<User> WSheet = new WSheet<>(bytes, User.class);

            if (WSheet.hasError()) {
                System.out.println("数据出现非法值");
                output("user_err.xlsx", WSheet.getBytes(true));
            } else {
                System.out.println("数据全部通过");
                List<User> list = WSheet.transferList(User.class);
                System.out.println("本次读取数据" + list.size() + "条!");
                for (User user : list) {
                    System.out.println(user);
                }
            }

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (InstantiationException e) {
            e.printStackTrace();
        } catch (TemplateNotMatchException e) {
            e.printStackTrace();
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
        }
    }

    public static void output(String path, byte[] bytes) {
        try {
            File file = new File(path);
            file.createNewFile();

            FileOutputStream fileOutputStream = null;
            try {
                fileOutputStream = new FileOutputStream(file);
                fileOutputStream.write(bytes);
            } finally {
                try {
                    fileOutputStream.flush();
                    fileOutputStream.close();
                } catch (Exception e) {

                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

}