Java上传图片功能

引入依赖

  <dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId><version>3.12.0</version></dependency><dependency><groupId>org.apache.commons</groupId><artifactId>commons-collections4</artifactId><version>4.4</version></dependency><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>2.11.0</version></dependency>

图片工具类

package com.example.demo.util;import com.example.demo.result.ResponseResult;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.web.multipart.MultipartFile;import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.UUID;/*** 图片工具类** @author yt*/
public class ImageUtils {public static final String IMAGE_JPG = "image/jpg";public static final String IMAGE_JPEG = "image/jpeg";public static final String IMAGE_PNG = "image/png";public static final String IMAGE_GIF = "image/gif";public static final String[] DEFAULT_ALLOWED_EXTENSION = {"jpg", "jpeg", "png", "gif"};/*** 图片文件名最大长度*/public static final int IMAGE_FILE_NAME_LENGTH_MAX = 80;/*** 图片文件大小最大限制 1MB*/public static final long IMAGE_FILE_SIZE_MAX = 1 * 1024 * 1024;/*** 图片上传** @param baseDir   相对应用的基目录* @param imageFile 图片文件* @return 图片文件名称*/public static String upload(String baseDir, MultipartFile imageFile) throws IOException {return upload(baseDir, imageFile, DEFAULT_ALLOWED_EXTENSION);}/*** 图片上传** @param baseDir       相对应用的基目录* @param bufferedImage 图片* @return 图片文件名称*/public static String upload(String baseDir, BufferedImage bufferedImage) throws IOException {String imageFileName = DateUtils.datePath() + "/" + UUID.randomUUID().toString().replaceAll("-", "") + ".jpg";File desc = getAbsoluteFile(baseDir, imageFileName);ImageIO.write(bufferedImage, "jpg", desc);String pathFileName = getPathFileName(imageFileName);return pathFileName;}/*** 图片上传** @param baseDir          相对应用的基目录* @param imageFile        图片文件* @param allowedExtension 允许上传图片文件类型* @return 图片文件名称*/public static String upload(String baseDir, MultipartFile imageFile, String[] allowedExtension) throws IOException {int imageFileNameLength = imageFile.getOriginalFilename().length();if (imageFileNameLength > IMAGE_FILE_NAME_LENGTH_MAX) {// throw new ServiceException(ApiResponseCodeEnum.FAIL, "图片文件名过长，最大长度为80字符");new ResponseResult(200, "图片文件名过长，最大长度为80字符");}long size = imageFile.getSize();if (IMAGE_FILE_SIZE_MAX > 0 && size > IMAGE_FILE_SIZE_MAX) {//  throw new ServiceException(ApiResponseCodeEnum.FAIL, "图片文件过大，最大限制为1MB");new ResponseResult(200, "图片文件过大，最大限制为1MB");}// 校验assertAllowed(imageFile, allowedExtension);String imageFileName = extractFilename(imageFile);File desc = getAbsoluteFile(baseDir, imageFileName);imageFile.transferTo(desc);String pathFileName = getPathFileName(imageFileName);return pathFileName;}/*** 校验** @param imageFile        图片文件* @param allowedExtension 允许上传图片文件类型*/public static void assertAllowed(MultipartFile imageFile, String[] allowedExtension) {String extension = getExtension(imageFile);if (!isAllowedExtension(extension, allowedExtension)) {//  throw new ServiceException(ApiResponseCodeEnum.FAIL, "图片文件格式错误，允许上传jpg,jpeg,png,gif格式");new ResponseResult(200, "图片文件格式错误，允许上传jpg,jpeg,png,gif格式");}}/*** 获取图片文件名称的后缀** @param imageFile 图片文件* @return 后缀*/public static String getExtension(MultipartFile imageFile) {String extension = FilenameUtils.getExtension(imageFile.getOriginalFilename());if (StringUtils.isBlank(extension)) {extension = getExtension(imageFile.getContentType());}return extension;}public static String getExtension(String prefix) {switch (prefix) {case IMAGE_JPG:return "jpg";case IMAGE_JPEG:return "jpeg";case IMAGE_PNG:return "png";case IMAGE_GIF:return "gif";default:return "";}}/*** 判断MIME类型是否是允许的MIME类型** @param extension        上传图片文件类型* @param allowedExtension 允许上传图片文件类型* @return true/false*/public static boolean isAllowedExtension(String extension, String[] allowedExtension) {for (String str : allowedExtension) {if (str.equalsIgnoreCase(extension)) {return true;}}return false;}/*** 编码文件名*/public static String extractFilename(MultipartFile imageFile) {String extension = getExtension(imageFile);String imageFileName = DateUtils.datePath() + "/" + UUID.randomUUID().toString().replaceAll("-", "") + "." + extension;return imageFileName;}private static File getAbsoluteFile(String uploadDir, String imageFileName) {File desc = new File(uploadDir + File.separator + imageFileName);if (!desc.exists()) {if (!desc.getParentFile().exists()) {desc.getParentFile().mkdirs();}}return desc.isAbsolute() ? desc : desc.getAbsoluteFile();}private static String getPathFileName(String imageFileName) {String pathFileName = "/" + imageFileName;return pathFileName;}
}

时间工具类

package com.example.demo.util;import org.apache.commons.lang3.time.DateFormatUtils;import java.util.Calendar;
import java.util.Date;/*** 日期工具类** @author yt*/
public class DateUtils {public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";public static String YYYYMMDD = "yyyyMMdd";public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";/*** 获取当前unix时间戳** @return 当前unix时间戳*/public static long getCurrentUnixTimestamp() {return System.currentTimeMillis() / 1000L;}public static String formatDateToStr(Date date) {return DateFormatUtils.format(date, YYYY_MM_DD_HH_MM_SS);}public static String formatDateToStr(Date date, String format) {return DateFormatUtils.format(date, format);}/*** 获取 年*/public static Integer getYear(Date date) {Calendar cal = Calendar.getInstance();cal.setTime(date);return cal.get(Calendar.YEAR);}/*** 获取 月*/public static Integer getMonth(Date date) {Calendar cal = Calendar.getInstance();cal.setTime(date);return cal.get(Calendar.MONTH) + 1;}/*** 获取 日*/public static Integer getDay(Date date) {Calendar cal = Calendar.getInstance();cal.setTime(date);return cal.get(Calendar.DAY_OF_MONTH);}/*** 获取 小时*/public static Integer getHour(Date date) {Calendar cal = Calendar.getInstance();cal.setTime(date);return cal.get(Calendar.HOUR_OF_DAY);}/*** 获取开始时间 天*/public static Date getDayStart(Date date) {Calendar cal = Calendar.getInstance();cal.setTime(date);cal.set(Calendar.HOUR_OF_DAY, 0);cal.set(Calendar.MINUTE, 0);cal.set(Calendar.SECOND, 0);cal.set(Calendar.MILLISECOND, 0);return cal.getTime();}/*** 获取结束时间 天*/public static Date getDayEnd(Date date) {Calendar cal = Calendar.getInstance();cal.setTime(date);cal.set(Calendar.HOUR_OF_DAY, 23);cal.set(Calendar.MINUTE, 59);cal.set(Calendar.SECOND, 59);cal.set(Calendar.MILLISECOND, 999);return cal.getTime();}/*** 获取开始时间 周*/public static Date getWeekStart(Date date) {Calendar cal = Calendar.getInstance();cal.setTime(date);int dayOfWeek = cal.get(Calendar.DAY_OF_WEEK);if (dayOfWeek == 1) {dayOfWeek += 7;}cal.add(Calendar.DATE, 2 - dayOfWeek);return getDayStart(cal.getTime());}/*** 获取结束时间 周*/public static Date getWeekEnd(Date date) {Calendar cal = Calendar.getInstance();cal.setTime(getWeekStart(date));cal.add(Calendar.DAY_OF_WEEK, 6);return getDayEnd(cal.getTime());}/*** 获取开始时间 月*/public static Date getMonthStart(Date date) {Calendar cal = Calendar.getInstance();cal.set(getYear(date), getMonth(date) - 1, 1);return getDayStart(cal.getTime());}/*** 获取结束时间 月*/public static Date getMonthEnd(Date date) {Calendar cal = Calendar.getInstance();cal.set(getYear(date), getMonth(date) - 1, 1);int day = cal.getActualMaximum(5);cal.set(getYear(date), getMonth(date) - 1, day);return getDayEnd(cal.getTime());}/*** 日期路径 即年/月/日 如2018/08/08*/public static String datePath() {Date now = new Date();return DateFormatUtils.format(now, "yyyy/MM/dd");}/*** date1 大于 date2** @param date1* @param date2* @return*/public static boolean greaterThan(Date date1, Date date2) {if (date1.compareTo(date2) > 0) {return true;}return false;}/*** date1 小于 date2** @param date1* @param date2* @return*/public static boolean lessThan(Date date1, Date date2) {if (date1.compareTo(date2) < 0) {return true;}return false;}/*** date1 等于 date2** @param date1* @param date2* @return*/public static boolean equal(Date date1, Date date2) {if (date1.compareTo(date2) == 0) {return true;}return false;}/*** date1 大于等于 date2** @param date1* @param date2* @return*/public static boolean greaterThanOrEqual(Date date1, Date date2) {if (date1.compareTo(date2) < 0) {return false;}return true;}/*** date1 小于等于 date2** @param date1* @param date2* @return*/public static boolean lessThanOrEqual(Date date1, Date date2) {if (date1.compareTo(date2) > 0) {return false;}return true;}/*** 计算 差 秒** @param date1* @param date2* @return*/public static int calcSecond(Date date1, Date date2) {long a = date1.getTime();long b = date2.getTime();int second = (int) ((a - b) / 1000);return second;}/*** 计算 差 月** @param date1* @param date2* @return*/public static int calcMonth(Date date1, Date date2) {Calendar cal1 = Calendar.getInstance();cal1.setTime(date1);Calendar cal2 = Calendar.getInstance();cal2.setTime(date2);int year1 = cal1.get(Calendar.YEAR);int year2 = cal2.get(Calendar.YEAR);int month1 = cal1.get(Calendar.MONTH);int month2 = cal2.get(Calendar.MONTH);int month = (year1 - year2) * 12 + (month1 - month2);return month;}/*** 计算 差 周** @param date1* @param date2* @return*/public static int calcWeek(Date date1, Date date2) {Calendar cal1 = Calendar.getInstance();cal1.setTime(date1);int dayOfWeek = cal1.get(Calendar.DAY_OF_WEEK);dayOfWeek = dayOfWeek - 1;if (dayOfWeek == 0) {dayOfWeek = 7;}int day = calcDay(date1, date2);int week = day / 7;int i;if (day > 0) {i = (day % 7 + dayOfWeek > 7) ? 1 : 0;} else {i = (dayOfWeek + week % 7 < 1) ? -1 : 0;}week = week + i;return week;}/*** 计算 差 天** @param date1* @param date2* @return*/public static int calcDay(Date date1, Date date2) {Calendar cal1 = Calendar.getInstance();cal1.setTime(date1);Calendar cal2 = Calendar.getInstance();cal2.setTime(date2);int day1 = cal1.get(Calendar.DAY_OF_YEAR);int day2 = cal2.get(Calendar.DAY_OF_YEAR);int year1 = cal1.get(Calendar.YEAR);int year2 = cal2.get(Calendar.YEAR);if (year1 != year2) {//同一年int timeDistance = 0;for (int i = year2; i < year1; i++) {if (i % 4 == 0 && i % 100 != 0 || i % 400 == 0) {//闰年timeDistance += 366;} else {//不是闰年timeDistance += 365;}}return timeDistance + (day1 - day2);} else {//不同年return day1 - day2;}}/*** 加减 秒** @param date* @param second* @return*/public static Date addSecond(Date date, int second) {Calendar cal = Calendar.getInstance();cal.setTime(date);cal.set(Calendar.SECOND, cal.get(Calendar.SECOND) + second);return cal.getTime();}/*** 加减 天** @param date* @param day* @return*/public static Date addDay(Date date, int day) {Calendar cal = Calendar.getInstance();cal.setTime(date);cal.add(Calendar.DAY_OF_MONTH, day);return cal.getTime();}/*** 加减 周** @param date* @param week* @return*/public static Date addWeek(Date date, int week) {Calendar cal = Calendar.getInstance();cal.setTime(date);cal.add(Calendar.WEEK_OF_MONTH, week);return cal.getTime();}/*** 加减 月** @param date* @param month* @return*/public static Date addMonth(Date date, int month) {Calendar cal = Calendar.getInstance();cal.setTime(date);cal.add(Calendar.MONTH, month);return cal.getTime();}
}

controller层

/*** @author yt* @create 2022/5/23 14:41*/
@RestController
@RequestMapping("image")
public class ImageController {@Autowiredprivate ImageService imageService;@PostMapping("/upload")public String upload(@RequestParam("image_file") MultipartFile imageFile) {return imageService.upload(imageFile);}
}

service层

package com.example.demo.service.impl;import com.example.demo.service.ImageService;
import com.example.demo.util.ImageUtils;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;import java.io.IOException;/*** @author yt* @create 2022/5/23 14:45*/
@Service
public class ImageServiceImpl implements ImageService {/*** 上传文件存储在本地的根路径*/@Value("${file.image.path}")private String path;/*** 域名或本机访问地址*/@Value("${file.image.domain}")private String domain;/*** 资源映射路径前缀*/@Value("${file.image.prefix}")private String prefix;@Overridepublic String upload(MultipartFile imageFile) {String address;try {address = ImageUtils.upload(path, imageFile);} catch (IOException e) {e.printStackTrace();throw new RuntimeException();}//总路径String url = domain + prefix + address;String name = imageFile.getOriginalFilename();String extension = ImageUtils.getExtension(imageFile);//扩展名System.out.println("extension = " + extension);//名称System.out.println("name = " + name);//上传文件存储在本地的根路径System.out.println("path = " + path);// 域名或本机访问地址System.out.println("domain = " + domain);//资源映射路径前缀System.out.println("prefix = " + prefix);//这里可以将需要的字段保存至数据库return url;}
}

application.properties配置

file.image.path=E:/file/image/star/systemfile.image.domain=http://100.100.90.45:8532file.image.prefix=/file/image/star/system

nginx配置（正常是不需要的，但是我的项目里使用了，记录一下）

server {listen       8532;server_name  localhost;#charset koi8-r;#access_log  logs/host.access.log  main;location / {root   html;index  index.html index.htm;}#图片配置location /file/image/ {alias   E:/file/image/;autoindex  on;}

postman测试

浏览器访问成功

备注：做项目的时候不知道本地需要nginx转发，浪费了不少时间，记录一下，本地访问不了图片，配置nginx之后成功访问。

Java上传图片功能相关推荐

java ajax传输图片_Java使用Ajax实现跨域上传图片功能
说明 : 图片服务器是用Nginx搭建的,用的是PHP语言这个功能需要用到两个js文件: jquery.js和jQuery.form.js function submitImgSize1Uplo ...
java+ jsp+js 实现富文本编辑和上传图片功能
java+ jsp+js 实现富文本编辑和上传图片功能使用kindeditor富文本插件: - kindeditor富文本官网地址详细的文档和demo都有下面是实现步骤: -导入项目中相关的文件 ...
图片上传组件_配置Django-TinyMCE组件实现上传图片功能
Django自带的Admin后台,好用,TinyMCE作为富文本编辑器,也蛮好用的,这两者结合起来在做博客的时候很方便(当然博客可能更适合用Markdown来写),但是Django-TinyMCE这个 ...
使用阿里云实现上传图片功能
前言: 需要先注册阿里云账号,开启对象存储oss(免费)功能,创建项目!(具体可百度) 步骤 1.创建yml配置文件 reggie:alioss:endpoint: xxxaccess-key-id: ...
springboot+vue实现七牛云上传图片功能
1.需求描述用户发布帖子,需要用到上传图片功能,并进行图片回显. 2.环境前端:uniapp + uview1.8 后端:springboot 2.5.13 3.具体流程用户在前端上传图片后,交 ...
java上传图片出现红色背景的问题
java上传图片出现红色背景的问题最近发现上传图片时有的图片可以正常上传,有的上传后颜色却变了,好像失真了一样,刚开始以为图片太大了,考虑压缩后再上传,不过发现并没有用,折腾了半天,发现是图片的位深 ...
PHP和Java的联系,PHP和Java的功能
PHP和Java的功能 PHP和Java PHP功能的另外一个高招是其调用已有Java对象的方法的能力,这种功能可以让你把PHP集成进已有的基于Java的应用程序.如果你正在你的工作场合推广PHP , ...
Java堆栈功能_【ThinkingInJava】35、用java实现堆栈功能
/** * 书本:<Thinking In Java> * 功能:用java实现堆栈功能 * 文件:LinkedStack.java * 时间:2015年4月17日14:23:34 * 作 ...
wcf 返回图片_WCF实现上传图片功能
初次学习实现WCF winform程序的通信,主要功能是实现图片的传输. 下面是实现步骤: 第一步: 首先建立一个类库项目TransferPicLib,导入wcf需要的引用System.Service ...

Java上传图片功能

Java上传图片功能相关推荐

最新文章

热门文章