SpringMvc上传图片，仅供参考，开发这么久第一次写博客，希望大家别喷，有不足之处希望大家多多指教。
Controller：
@ResponseBody
@RequestMapping(params = "uploadImge")
public String uploadImge(HttpServletRequest request) {
Map<String, List<List<String>>> map = new HashMap<>();
List<List<String>> newImgNames = new ArrayList<>();
//请求解析器
CommonsMultipartResolver cmr = new CommonsMultipartResolver(request.getServletContext());
String imgname = request.getParameter("imgname");
if(!StringUtil.isEmpty(imgname)){
String[] imgnameArr = imgname.split(",");
for (int i = 0; i < imgnameArr.length; i++) {
deleteImg(request, imgnameArr[i]);
}
}
//判断是否有文件上传
if (cmr.isMultipart(request)) {
//转换成MultipartHttpRequest
MultipartHttpServletRequest mRequest = (MultipartHttpServletRequest) (request);
//获取所有文件名的迭代器
Iterator<String> files = mRequest.getFileNames();
//拿到每一个文件
while (files.hasNext()) {
//按照文件名称获取这个上传文件，上传文件被转化为MultipartFile 对象
MultipartFile mFile = mRequest.getFile(files.next());
if (mFile != null) {
// String fileName = UUID.randomUUID() + mFile.getOriginalFilename();
newImgNames.add(saveFile(mFile, request));
}
}
map.put("fileMsg", newImgNames);
}
JSONArray arr = JSONArray.fromObject(map);
System.out.println(arr);
return arr.toString();
}
/**
* 保存图片
*
* @param file
* @param request
* @return
*/
private List<String> saveFile(MultipartFile file, HttpServletRequest request) {
List<String> list = new ArrayList<>();
try {
byte[] bytes = file.getBytes();
// 当前项目根目录
String rootPath = request.getServletContext().getRealPath("/");
// 在当前项目中地址
String relativePath = "upload/app";
// 文件夹是否存在，不存在就创建
File dir = new File(rootPath + File.separator + relativePath);
if (!dir.exists())
dir.mkdirs();
String fileExtension = FileUtils.getFileExtension(file);
// String filename = file.getName(); //文件原名字
String uuid = java.util.UUID.randomUUID().toString()
.replace("-", "");
long timeMillis = System.currentTimeMillis(); // 时间戳
// 图片名称
String fileName = uuid + timeMillis + "." + fileExtension;
//访问图片路径
String fullServerPath = new URL(request.getScheme(), request.getServerName(), request.getServerPort(),
request.getContextPath()).toString() +"/"+ relativePath +"/"+ fileName;
// 图片在服务器的路径
String serverPath = dir.getAbsolutePath() + File.separator
+ fileName;
// 保存图片
File serverFile = new File(serverPath);
BufferedOutputStream stream = new BufferedOutputStream(
new FileOutputStream(serverFile));
stream.write(bytes);
stream.close();
/*logger.info("Server File Location = " + serverFile.getAbsolutePath());
String serverPath = new URL(request.getScheme(),
request.getServerName(), request.getServerPort(),
request.getContextPath()).toString();*/
HFileUploadDownloadGaoEntity fileEntity = new HFileUploadDownloadGaoEntity();
fileEntity.setFileName(fileName);
fileEntity.setFilePath(serverPath);
fileEntity.setFileUploadTime(df.format(new Date()));
systemService.save(fileEntity);
list.add(fullServerPath);
list.add(fileName);
} catch (Exception e) {
logger.info("error: {}", e);
}
return list;
}
/**
* 删除图片在数据库中的路径
* @param request
* @param imgName
* @return
*/
@RequestMapping(params="deleteImg")
@ResponseBody
public int deleteImg(HttpServletRequest request,String imgName){
int result = -1;
if (StringUtil.isEmpty(imgName)) {
imgName = request.getParameter("imgName");
}
HFileUploadDownloadGaoEntity entity = dao.getImgPath(imgName);
String path = entity.getFilePath();
boolean delete = FileUtils.delete(path);
if (delete) {
result = dao.deleteImg(imgName);
}else{
result = 0;
}
return result;
}
package org.jeecgframework.core.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import org.apache.commons.lang3.StringUtils;
import org.springframework.web.multipart.MultipartFile;
/**
* 文件操作工具类
* @author
*
*/
public class FileUtils {
/**
* 获取文件扩展名
*
* @param file
* @return
*/
public static String getFileExtension(MultipartFile file) {
String fileName = file.getName();
if (fileName.lastIndexOf(".") != -1 && fileName.lastIndexOf(".") != 0) {
return fileName.substring(fileName.lastIndexOf(".") + 1);
} else {
return "";
}
}
/**
* 获取文件扩展名
*
* @param filename
* @return
*/
public static String getExtend(String filename) {
return getExtend(filename, "");
}
/**
* 获取文件扩展名
*
* @param filename
* @return
*/
public static String getExtend(String filename, String defExt) {
if ((filename != null) && (filename.length() > 0)) {
int i = filename.lastIndexOf('.');
if ((i > 0) && (i < (filename.length() - 1))) {
return (filename.substring(i+1)).toLowerCase();
}
}
return defExt.toLowerCase();
}
/**
* 获取文件名称[不含后缀名]
*
* @param
* @return String
*/
public static String getFilePrefix(String fileName) {
int splitIndex = fileName.lastIndexOf(".");
return fileName.substring(0, splitIndex).replaceAll("\\s*", "");
}
/**
* 获取文件名称[不含后缀名]
* 不去掉文件目录的空格
* @param
* @return String
*/
public static String getFilePrefix2(String fileName) {
int splitIndex = fileName.lastIndexOf(".");
return fileName.substring(0, splitIndex);
}
/**
* 文件复制
*方法摘要：这里一句话描述方法的用途
*@param
*@return void
*/
public static void copyFile(String inputFile,String outputFile) throws FileNotFoundException{
File sFile = new File(inputFile);
File tFile = new File(outputFile);
FileInputStream fis = new FileInputStream(sFile);
FileOutputStream fos = new FileOutputStream(tFile);
int temp = 0;
byte[] buf = new byte[10240];
try {
while((temp = fis.read(buf))!=-1){
fos.write(buf, 0, temp);
}
} catch (IOException e) {
e.printStackTrace();
} finally{
try {
fis.close();
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* 判断文件是否为图片<br>
* <br>
*
* @param filename
* 文件名<br>
* 判断具体文件类型<br>
* @return 检查后的结果<br>
* @throws Exception
*/
public static boolean isPicture(String filename) {
// 文件名称为空的场合
if (oConvertUtils.isEmpty(filename)) {
// 返回不和合法
return false;
}
// 获得文件后缀名
//String tmpName = getExtend(filename);
String tmpName = filename;
// 声明图片后缀名数组
String imgeArray[][] = { { "bmp", "0" }, { "dib", "1" },
{ "gif", "2" }, { "jfif", "3" }, { "jpe", "4" },
{ "jpeg", "5" }, { "jpg", "6" }, { "png", "7" },
{ "tif", "8" }, { "tiff", "9" }, { "ico", "10" } };
// 遍历名称数组
for (int i = 0; i < imgeArray.length; i++) {
// 判断单个类型文件的场合
if (imgeArray[i][0].equals(tmpName.toLowerCase())) {
return true;
}
}
return false;
}
/**
* 判断文件是否为DWG<br>
* <br>
*
* @param filename
* 文件名<br>
* 判断具体文件类型<br>
* @return 检查后的结果<br>
* @throws Exception
*/
public static boolean isDwg(String filename) {
// 文件名称为空的场合
if (oConvertUtils.isEmpty(filename)) {
// 返回不和合法
return false;
}
// 获得文件后缀名
String tmpName = getExtend(filename);
// 声明图片后缀名数组
if (tmpName.equals("dwg")) {
return true;
}
return false;
}
/**
* 删除指定的文件
*
* @param strFileName
* 指定绝对路径的文件名
* @return 如果删除成功true否则false
*/
public static boolean delete(String strFileName) {
File fileDelete = new File(strFileName);
if (!fileDelete.exists() || !fileDelete.isFile()) {
LogUtil.info("错误: " + strFileName + "不存在!");
return false;
}
LogUtil.info("--------成功删除文件---------"+strFileName);
return fileDelete.delete();
}
/**
*
* @Title: encodingFileName 2015-11-26 huangzq add
* @Description: 防止文件名中文乱码含有空格时%20
* @param @param fileName
* @param @return 设定文件
* @return String 返回类型
* @throws
*/
public static String encodingFileName(String fileName) {
String returnFileName = "";
try {
returnFileName = URLEncoder.encode(fileName, "UTF-8");
returnFileName = StringUtils.replace(returnFileName, "+", "%20");
if (returnFileName.length() > 150) {
returnFileName = new String(fileName.getBytes("GB2312"), "ISO8859-1");
returnFileName = StringUtils.replace(returnFileName, " ", "%20");
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
LogUtil.info("Don't support this encoding ...");
}
return returnFileName;
}
}
package com.towery.thermal.file.entity;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.PrimaryKeyJoinColumn;
import javax.persistence.Table;
import org.jeecgframework.poi.excel.annotation.Excel;
import org.jeecgframework.web.system.pojo.base.TSAttachment;
/**
* @Title: Entity
* @Description: 文件上传实体类
* @author onlineGenerator
* @date 2017-10-12 11:05:55
* @version V1.0
*
*/
@Entity
@Table(name = "h_file_upload_download_gao")
@PrimaryKeyJoinColumn(name = "id")
public class HFileUploadDownloadGaoEntity extends TSAttachment implements java.io.Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
/**主键*/
// private java.lang.String id;
/**创建人名称*/
private java.lang.String createName;
/**创建人登录名称*/
private java.lang.String createBy;
/**创建日期*/
private java.util.Date createDate;
/**更新人名称*/
private java.lang.String updateName;
/**更新人登录名称*/
private java.lang.String updateBy;
/**更新日期*/
private java.util.Date updateDate;
/**所属部门*/
private java.lang.String sysOrgCode;
/**所属公司*/
private java.lang.String sysCompanyCode;
/**流程状态*/
private java.lang.String bpmStatus;
/**文件名称*/
private java.lang.String fileName;
/**文件路径*/
@Excel(name = "文件路径")
private java.lang.String filePath;
/**文件上传时间*/
private java.lang.String fileUploadTime;
/**模块外键*/
private java.lang.String foreignKey;
/**上传人*/
private java.lang.String uploadPerson;
/**
*方法: 取得java.lang.String
*@return: java.lang.String 主键
*/
// @Id
// @GeneratedValue(generator = "paymentableGenerator")
// @GenericGenerator(name = "paymentableGenerator", strategy = "uuid")
// @Column(name = "ID", nullable = false, length = 36)
// public java.lang.String getId() {
// return this.id;
// }
//
// /**
// *方法: 设置java.lang.String
// *@param: java.lang.String 主键
// */
// public void setId(java.lang.String id) {
// this.id = id;
// }
/**
*方法: 取得java.lang.String
*@return: java.lang.String 创建人名称
*/
@Column(name = "CREATE_NAME", nullable = true, length = 50)
public java.lang.String getCreateName() {
return this.createName;
}
/**
*方法: 设置java.lang.String
*@param: java.lang.String 创建人名称
*/
public void setCreateName(java.lang.String createName) {
this.createName = createName;
}
/**
*方法: 取得java.lang.String
*@return: java.lang.String 创建人登录名称
*/
@Column(name = "CREATE_BY", nullable = true, length = 50)
public java.lang.String getCreateBy() {
return this.createBy;
}
/**
*方法: 设置java.lang.String
*@param: java.lang.String 创建人登录名称
*/
public void setCreateBy(java.lang.String createBy) {
this.createBy = createBy;
}
/**
*方法: 取得java.util.Date
*@return: java.util.Date 创建日期
*/
@Column(name = "CREATE_DATE", nullable = true, length = 20)
public java.util.Date getCreateDate() {
return this.createDate;
}
/**
*方法: 设置java.util.Date
*@param: java.util.Date 创建日期
*/
public void setCreateDate(java.util.Date createDate) {
this.createDate = createDate;
}
/**
*方法: 取得java.lang.String
*@return: java.lang.String 更新人名称
*/
@Column(name = "UPDATE_NAME", nullable = true, length = 50)
public java.lang.String getUpdateName() {
return this.updateName;
}
/**
*方法: 设置java.lang.String
*@param: java.lang.String 更新人名称
*/
public void setUpdateName(java.lang.String updateName) {
this.updateName = updateName;
}
/**
*方法: 取得java.lang.String
*@return: java.lang.String 更新人登录名称
*/
@Column(name = "UPDATE_BY", nullable = true, length = 50)
public java.lang.String getUpdateBy() {
return this.updateBy;
}
/**
*方法: 设置java.lang.String
*@param: java.lang.String 更新人登录名称
*/
public void setUpdateBy(java.lang.String updateBy) {
this.updateBy = updateBy;
}
/**
*方法: 取得java.util.Date
*@return: java.util.Date 更新日期
*/
@Column(name = "UPDATE_DATE", nullable = true, length = 20)
public java.util.Date getUpdateDate() {
return this.updateDate;
}
/**
*方法: 设置java.util.Date
*@param: java.util.Date 更新日期
*/
public void setUpdateDate(java.util.Date updateDate) {
this.updateDate = updateDate;
}
/**
*方法: 取得java.lang.String
*@return: java.lang.String 所属部门
*/
@Column(name = "SYS_ORG_CODE", nullable = true, length = 50)
public java.lang.String getSysOrgCode() {
return this.sysOrgCode;
}
/**
*方法: 设置java.lang.String
*@param: java.lang.String 所属部门
*/
public void setSysOrgCode(java.lang.String sysOrgCode) {
this.sysOrgCode = sysOrgCode;
}
/**
*方法: 取得java.lang.String
*@return: java.lang.String 所属公司
*/
@Column(name = "SYS_COMPANY_CODE", nullable = true, length = 50)
public java.lang.String getSysCompanyCode() {
return this.sysCompanyCode;
}
/**
*方法: 设置java.lang.String
*@param: java.lang.String 所属公司
*/
public void setSysCompanyCode(java.lang.String sysCompanyCode) {
this.sysCompanyCode = sysCompanyCode;
}
/**
*方法: 取得java.lang.String
*@return: java.lang.String 流程状态
*/
@Column(name = "BPM_STATUS", nullable = true, length = 32)
public java.lang.String getBpmStatus() {
return this.bpmStatus;
}
/**
*方法: 设置java.lang.String
*@param: java.lang.String 流程状态
*/
public void setBpmStatus(java.lang.String bpmStatus) {
this.bpmStatus = bpmStatus;
}
/**
*方法: 取得java.lang.String
*@return: java.lang.String 文件名称
*/
@Column(name = "FILE_NAME", nullable = true, length = 200)
public java.lang.String getFileName() {
if (fileName != null) {
String fileName_ = fileName.replace(" ", "");
return fileName_;
} else {
return this.fileName;
}
}
/**
*方法: 设置java.lang.String
*@param: java.lang.String 文件名称
*/
public void setFileName(java.lang.String fileName) {
this.fileName = fileName;
}
/**
*方法: 取得java.lang.String
*@return: java.lang.String 文件路径
*/
@Column(name = "FILE_PATH", nullable = true, length = 200)
public java.lang.String getFilePath() {
return this.filePath;
}
/**
*方法: 设置java.lang.String
*@param: java.lang.String 文件路径
*/
public void setFilePath(java.lang.String filePath) {
this.filePath = filePath;
}
/**
*方法: 取得java.lang.String
*@return: java.lang.String 文件上传时间
*/
@Column(name = "FILE_UPLOAD_TIME", nullable = true, length = 100)
public java.lang.String getFileUploadTime() {
return this.fileUploadTime;
}
/**
*方法: 设置java.lang.String
*@param: java.lang.String 文件上传时间
*/
public void setFileUploadTime(java.lang.String fileUploadTime) {
this.fileUploadTime = fileUploadTime;
}
/**
*方法: 取得java.lang.String
*@return: java.lang.String 模块外键
*/
@Column(name = "FOREIGN_KEY", nullable = true, length = 64)
public java.lang.String getForeignKey() {
return this.foreignKey;
}
/**
*方法: 设置java.lang.String
*@param: java.lang.String 模块外键
*/
public void setForeignKey(java.lang.String foreignKey) {
this.foreignKey = foreignKey;
}
/**
*方法: 取得java.lang.String
*@return: java.lang.String 上传人
*/
@Column(name = "UPLOAD_PERSON", nullable = true, length = 64)
public java.lang.String getUploadPerson() {
return this.uploadPerson;
}
/**
*方法: 设置java.lang.String
*@param: java.lang.String 上传人
*/
public void setUploadPerson(java.lang.String uploadPerson) {
this.uploadPerson = uploadPerson;
}
}
