java poi Excel exportación y descarga de archivos cifrados

Language 2023-09-16 00:30:48 views: null

java poi Excel exportación y descarga de archivos cifrados

Imagen del resultado final

Insertar descripción de la imagen aquí

poi depende del paquete jar

<dependency>
   <groupId>org.apache.poi</groupId>
   <artifactId>poi</artifactId>
   <version>3.16-beta2</version>
</dependency>
<dependency>
   <groupId>org.apache.poi</groupId>
   <artifactId>poi-ooxml</artifactId>
   <version>3.16-beta2</version>
</dependency>

Ubicación del recurso de archivoFileResource

package com.test.export;
import java.io.File;
import java.io.FileNotFoundException;

import org.springframework.util.ResourceUtils;

public class FileResource {
    
    

	public static String xls= "";
	
	static{
    
    
		try {
    
    
			
			File path = new File(ResourceUtils.getURL("classpath:").getPath());
			// 如果通过jar允许，则使用当前jar包所在路径
			if (!path.exists())
				path = new File("");
			
			path = new File(path.getAbsolutePath(), "static"+File.separator+"xls");
			if (!path.exists())
				path.mkdirs();

			xls = path.getAbsolutePath();
		} catch (FileNotFoundException e) {
    
    
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

Clase de herramienta de exportación TestExport

package com.example.demo123.service;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.example.demo123.config.FileResource;
import com.example.demo123.controller.Test;
import com.example.demo123.util.DCPException;
import com.example.demo123.util.ErrorCode;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.openxml4j.opc.OPCPackage;
import org.apache.poi.openxml4j.opc.PackageAccess;
import org.apache.poi.poifs.crypt.EncryptionInfo;
import org.apache.poi.poifs.crypt.EncryptionMode;
import org.apache.poi.poifs.crypt.Encryptor;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;

import java.io.*;
import java.security.GeneralSecurityException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;

/**
 * @program: demo1231
 * @description:
 * @author: lxq
 * @create: 2020-11-21 16:08
 * @Version: 1.0
 **/
public class TestExport {
    
    
    public static String export(List<Test> rows, String excelName) throws ParseException{
    
    
        HSSFWorkbook wb = new HSSFWorkbook();
        HSSFSheet sheet = wb.createSheet("poi导出");
        sheet.setDefaultRowHeight((short) (20 * 20));
        HSSFRow row = null;
        row = sheet.createRow(0);

        // 假设你的查询数据里有表头这些字段
        // 表头
        row.createCell(0).setCellValue("userId");
        row.createCell(1).setCellValue("userName");
        row.createCell(2).setCellValue("userPassword");
        row.createCell(3).setCellValue("sex");

        JSONArray array = JSONArray.parseArray(JSON.toJSONString(rows));

        // 数据
        for (int i = 0; i < array.size(); i++) {
    
    
            JSONObject jsonObj = array.getJSONObject(i);
            row = sheet.createRow(i + 1);

            row.createCell(0).setCellValue(jsonObj.getString("userId"));
            row.createCell(1).setCellValue(jsonObj.getString("userName"));
            row.createCell(2).setCellValue(jsonObj.getString("userPassword"));
            row.createCell(3).setCellValue(jsonObj.getString("sex"));
        }

        sheet.setColumnWidth(0, 450 * 20);
        sheet.setColumnWidth(1, 300 * 20);
        sheet.setColumnWidth(2, 150 * 20);
        sheet.setColumnWidth(3, 150 * 20);

        String fileName = createFile(wb, excelName);
        return fileName;
    }

    private static String createFile(HSSFWorkbook workbook, String name) throws ParseException{
    
    
        String filePath = FileResource.xls;
        // 生成文件
        DateFormat fm = new SimpleDateFormat("yyyMMddhhmmss");
        String fileName = name + fm.format(new Date())+".xlsx";
        FileOutputStream fos = null;
        try {
    
    
            File file = new File(filePath+File.separator+fileName);
            if(!file.exists()) {
    
    
                file.createNewFile();
            }
            fileName=file.getPath();
            // 保存此XSSFWorkbook对象为xlsx文件
            workbook.write(new FileOutputStream(file));
            FileOutputStream fileOut = new FileOutputStream(file);
            workbook.write(fileOut);
            fileOut.close();
            POIFSFileSystem fs = new POIFSFileSystem();
            EncryptionInfo info = new EncryptionInfo(EncryptionMode.agile);
            Encryptor enc = info.getEncryptor();
            enc.confirmPassword("123456");
            OPCPackage opc = OPCPackage.open(new File(String.valueOf(file)), PackageAccess.READ_WRITE);
            OutputStream os = enc.getDataStream(fs);
            opc.save(os);
            opc.close();
            fos= new FileOutputStream(file);
            fs.writeFilesystem(fos);
            fos.close();
        } catch (IOException e) {
    
    
            e.printStackTrace();
        } catch (GeneralSecurityException | InvalidFormatException e) {
    
    
            e.printStackTrace();
        } finally {
    
    
            try {
    
    
                fos.close();
                workbook.close();
            } catch (IOException e) {
    
    
                e.printStackTrace();
            }
        }

        return fileName;
    }
    public static void export1(String filePath) {
    
    
        FileInputStream fis= null; //这里换成你本地的excel相对路径或绝对路径
        try {
    
    
            fis = new FileInputStream(new File(filePath));
            FileOutputStream fos= null;
            HSSFWorkbook workbook = new HSSFWorkbook(fis);
            workbook.writeProtectWorkbook("password","admin");
            fos=new FileOutputStream(new File(filePath));//这里换成你本地的excel相对路径或绝对路径
            workbook.write(fos);
            //   writeProtectWorkbook第一个参数是打开Excel文件的密码
            //   writeProtectWorkbook第二个参数是现实文件密码是由谁设置的
            //   第二个参数用中文可能会出现乱码的情况，我用utf8编码workspace
            //   可能用gbk不会有乱码
            fis.close();
            fos.close();
        } catch (IOException e) {
    
    
            e.printStackTrace();
        }
    }
}

pruebaExportController

package com.example.demo123.controller;

import com.example.demo123.config.ReturnValue;
import com.example.demo123.service.TestExport;
import com.example.demo123.service.TestService;
import com.example.demo123.util.ErrorCode;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import java.io.File;
//import java.io.FileInputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.List;

@Slf4j
@RequestMapping("/test")
public class testExportController {
    
    
    @Autowired
    private static TestService testService;
    @PostMapping("/testDataExport")
    public R ReturnValue<String> testDataExport(
            @RequestParam(name = "excelName", required = true) String excelName) {
    
    
        try {
    
    
            List<Test> rows = new ArrayList<>();
            Test test = new Test();
            test.setUserId("0000");
            test.setSex(0);
            test.setUserName("张三");
            test.setUserPassword("123456");
            rows.add(test);
            if (rows.size()<= 0) {
    
    
                return  R.data("无数据导出");
            }
            String fileName = TestExport.export(rows, excelName);
            TestExport.export1(fileName);
            return R.data(fileName);
        } catch (Exception e) {
    
    
            return R.fail("服务内部错误");
        }
    }
    public static void main(String[] args){
    
    
        testDataExport("11");
    }

//    public static void main(String[] args)throws Exception{
    
    
//        FileInputStream fis=new FileInputStream(new File("E:/backup/系统存储告警记录-20201214012437.xls")); //这里换成你本地的excel相对路径或绝对路径
//        FileOutputStream fos= null;
//        HSSFWorkbook workbook = new HSSFWorkbook(fis);
//        workbook.writeProtectWorkbook("password","admin");
//        fos=new FileOutputStream(new File("E:/backup/系统存储告警记录-20201214012437.xls"));//这里换成你本地的excel相对路径或绝对路径
//        workbook.write(fos);
//        //   writeProtectWorkbook第一个参数是打开Excel文件的密码
//        //   writeProtectWorkbook第二个参数是现实文件密码是由谁设置的
//        //   第二个参数用中文可能会出现乱码的情况，我用utf8编码workspace
//        //   可能用gbk不会有乱码
//        fis.close();
//        fos.close();
//    }
}

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.7.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demo123</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- 热部署依赖 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </dependency>
        <!--  mysql的依赖-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <!-- get/set依赖 -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.20</version>
        </dependency>
        <!-- 日志依赖 -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>log4j-over-slf4j</artifactId>
        </dependency>
        <!-- 阿里巴巴druid数据源依赖 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.12</version>
        </dependency>
        <!-- Base64编码需要  -->
        <dependency>
            <groupId>org.apache.directory.studio</groupId>
            <artifactId>org.apache.commons.codec</artifactId>
            <version>1.8</version>
        </dependency>
        <!-- 阿里巴巴fastjson依赖 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.47</version>
        </dependency>
        <!-- 谷歌gson依赖 -->
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.8.2</version>
        </dependency>
        <!-- 工具包依赖 -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.4</version>
        </dependency>
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.4</version>
        </dependency>
        <!-- servlet 依赖 -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <scope>provided</scope>
        </dependency>
        <!-- 模板引擎依赖 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <!-- 加解密 -->
<!--        <dependency>-->
<!--            <groupId>org.springframework.boot</groupId>-->
<!--            <artifactId>encrypt-body-spring-boot-starter</artifactId>-->
<!--            <version>1.0.0</version>-->
<!--        </dependency>-->
<!--        <dependency>-->
<!--            <groupId>org.springframework.boot</groupId>-->
<!--            <artifactId>spring-boot-autoconfigure</artifactId>-->
<!--            <version>2.2.1.RELEASE</version>-->
<!--        </dependency>-->
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi</artifactId>
            <version>3.16-beta2</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>3.16-beta2</version>
        </dependency>
        <dependency>
            <groupId>net.lingala.zip4j</groupId>
            <artifactId>zip4j</artifactId>
            <version>1.3.2</version>
        </dependency>
        <!--缺少此jar包，导致@Mapper注解无效-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.2.0</version>
        </dependency>
    </dependencies>

    <build>
        <resources>

            <resource>

                <directory>src/main/java</directory>

                <filtering>true</filtering>

            </resource>

            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                    <include>**/*.ftl</include>
                </includes>
            </resource>
        </resources>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
        <repositories>
            <repository>
                <id>release</id>
                <name>Release Repository</name>
                <url>http://nexus.gitee.ltd/repository/maven-releases/</url>
            </repository>
            <repository>
                <id>aliyun-repos</id>
                <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
                <snapshots>
                    <enabled>false</enabled>
                </snapshots>
            </repository>
        </repositories>

        <pluginRepositories>
            <pluginRepository>
                <id>aliyun-plugin</id>
                <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
                <snapshots>
                    <enabled>false</enabled>
                </snapshots>
            </pluginRepository>
        </pluginRepositories>
</project>

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