EasyPoi

官方文档：http://doc.wupaas.com/docs/easypoi

Excel模版导出

引入依赖

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>cn.afterturn</groupId>
            <artifactId>easypoi-base</artifactId>
            <version>4.4.0</version>
        </dependency>
        <dependency>
            <groupId>cn.afterturn</groupId>
            <artifactId>easypoi-web</artifactId>
            <version>4.4.0</version>
        </dependency>
        <dependency>
            <groupId>cn.afterturn</groupId>
            <artifactId>easypoi-annotation</artifactId>
            <version>4.4.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi</artifactId>
            <version>4.1.2</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>4.1.2</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml-schemas</artifactId>
            <version>4.1.2</version>
        </dependency>
    </dependencies>

创建模版

测试

import cn.afterturn.easypoi.excel.ExcelExportUtil;
import cn.afterturn.easypoi.excel.entity.TemplateExportParams;
import org.apache.poi.ss.usermodel.Workbook;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.core.io.ClassPathResource;
import org.springframework.test.context.junit4.SpringRunner;
import pers.kw.esaypoi.EasyPoiApp;

import java.io.File;
import java.io.FileOutputStream;
import java.util.HashMap;
import java.util.Map;

@SpringBootTest(classes = EasyPoiApp.class)
@RunWith(SpringRunner.class)
public class PoiTest {

    @Test
    public void test() throws Exception {
        ClassPathResource classPathResource = new ClassPathResource("templates/student.xlsx");
        File file = classPathResource.getFile();
        TemplateExportParams params = new TemplateExportParams(
                file.getPath());
        Map<String, Object> map = new HashMap<>();
        map.put("date", "2014年09月01日");
        map.put("sex", "男");
        map.put("stuNo", "12138");
        map.put("addr", "五道口");
        map.put("tel", "123456");
        //excel如何遍历列表
        Workbook workbook = ExcelExportUtil.exportExcel(params, map);
        FileOutputStream fos = new FileOutputStream("/Users/kw/Downloads/student.xlsx");
        workbook.write(fos);
        fos.close();
    }
}

导出效果

问题记录

运行时，类找不到

Caused by: java.lang.ClassNotFoundException: org.apache.poi.ss.usermodel.WorkbookFactory$CreateWorkbook0

这种运行类找不到问题，一般就是依赖冲突了。
使用maven helper查看到poi-ooxml等相关依赖，版本冲突了。
解决：
引入依赖

 <dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi</artifactId>
    <version>4.1.2</version>
</dependency>
<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>4.1.2</version>
</dependency>
<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml-schemas</artifactId>
    <version>4.1.2</version>
</dependency>

运行报错No valid entries or contents found, this is not a valid OOXML (Office Open XML) file

原因是maven插件打包配置了过滤文件类型
排除xlsx xls类型即可

<build>
        <resources>
            <resource>
                <directory>src/main/resources/</directory>
                <includes>
                    <include>**/*.yml</include>
                    <include>**/*.xml</include>
                    <include>**/*.properties</include>
                    <include>**/*.html</include>
                    <include>**/*.xlsx</include>
                    <include>**/*.xls</include>
                </includes>
                <filtering>true</filtering>
            </resource>
        </resources>

        <plugins>
            <plugin>
                <artifactId>maven-resources-plugin</artifactId>
                <version>3.1.0</version>
                <configuration>
                    <encoding>utf-8</encoding>
                    <resources>
                        <resource>
                            <directory>src/main/resources/</directory>
                            <filtering>true</filtering>
                        </resource>
                    </resources>
                    <nonFilteredFileExtensions>
                        <nonFilteredFileExtension>
                            xls
                        </nonFilteredFileExtension>
                        <nonFilteredFileExtension>
                            xlsx
                        </nonFilteredFileExtension>
                    </nonFilteredFileExtensions>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <target>1.8</target>
                    <source>1.8</source>
                    <encoding>utf-8</encoding>
                </configuration>
            </plugin>
        </plugins>
    </build>