JAVA 上传图片到 服务器（Tomcat）目录下
package com.shangjian.cms.utils;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import org.apache.commons.io.FilenameUtils;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import com.shangjian.cms.bean.Picture;
public class ImgToProjectTools {
//图片上传路径
String url2 = "E:/Shang-Jian/Git/CHS/src/main/webapp/view/GrowthRecordImg";
String url3 = "E:/Shang-Jian/Git/CHS/src/main/webapp/view/pictures";
String CMSURL = "E:/Shang-Jian/Git/CMS/CMS/src/main/webapp/view/pictures";
/**
* 处理图片组【两张】上传至项目
* @param pictureFile
* @return
* @throws Exception
*/
public Map dataImg(@RequestParam("pictureFile")MultipartFile[] pictureFile) throws Exception{
Map imgMap = new HashMap();
String img_url = null;
String img_url2 = null;
if (pictureFile != null && pictureFile.length > 0) {
for (int i = 0; i < pictureFile.length; i++) {
MultipartFile file = pictureFile[i];
if(file.getName()== ""){}else{
//保存图片
String url = saveImgTwo(file);
//分开保存两个imgurl两个字段
if(i==0){
img_url = url;
}else if(i==1){
img_url2 = url;
}
}
}
}
imgMap.put("img_url", img_url);
imgMap.put("img_url2", img_url2);
return imgMap;
}
//保存图片方法
public String saveImgTwo(MultipartFile pictureFile){
if(pictureFile.getSize()==0){
return null;
}else{
String pic_path;
//获取Tomcat服务器所在的路径
String tomcat_path = System.getProperty("catalina.home");
System.out.println(tomcat_path);
//获取Tomcat服务器所在路径的最后一个文件目录
String bin_path = tomcat_path.substring(tomcat_path.lastIndexOf("\\") + 1, tomcat_path.length());
System.out.println(bin_path);
//若最后一个文件目录为bin目录，则服务器为手动启动
if (("bin").equals(bin_path)) {//手动启动Tomcat时获取路径为：D:\Software\Tomcat-8.5\bin
//获取保存上传图片的文件路径
pic_path = tomcat_path.substring(0, System.getProperty("catalina.home").lastIndexOf("\\")) + "\\webapps" + "\\App_user_Photo\\";
} else {//服务中自启动Tomcat时获取路径为：D:\Software\Tomcat-8.5
pic_path = tomcat_path + "\\webapps" + "\\CHS" + "\\view" + "\\GrowthRecordImg\\";
}
String uuid=UUID.randomUUID().toString().replaceAll("-", "");
//项目部署使用
String strPath = pic_path;
//本地使用
//String strPath = url2;
//String strPath = Config.PATH;
String suffix = pictureFile.getOriginalFilename().substring(pictureFile.getOriginalFilename().lastIndexOf("."));
suffix = suffix.toLowerCase();
if (suffix.equals(".jpg") || suffix.equals(".jpeg") || suffix.equals(".png") || suffix.equals(".gif")) {
String fileName = uuid + suffix;
File targetFile = new File(strPath, fileName);
if (!targetFile.getParentFile().exists()) { //注意，判断父级路径是否存在
targetFile.getParentFile().mkdirs();
}
long size = 0;
//保存
try {
pictureFile.transferTo(targetFile);
size = pictureFile.getSize();
} catch (Exception e) {
e.printStackTrace();
}
return fileName;
} else {
/* JSONObject jsonObject = new JSONObject();
jsonObject.put("error", 1);*/
return "图片格式不正确，保存失败！";
}
}
}
//保存图片方法
public Picture saveImgThree(MultipartFile pictureFile){
if(pictureFile.getSize()==0){
return null;
}else{
Picture pc = new Picture();
//图片大小
pictureFile.getContentType();
pc.setOld_name(pictureFile.getOriginalFilename());
pc.setSize(pictureFile.getSize());
String pic_path;
//获取Tomcat服务器所在的路径
String tomcat_path = System.getProperty("catalina.home");
System.out.println(tomcat_path);
//获取Tomcat服务器所在路径的最后一个文件目录
String bin_path = tomcat_path.substring(tomcat_path.lastIndexOf("\\") + 1, tomcat_path.length());
System.out.println(bin_path);
//若最后一个文件目录为bin目录，则服务器为手动启动
if (("bin").equals(bin_path)) {//手动启动Tomcat时获取路径为：D:\Software\Tomcat-8.5\bin
//获取保存上传图片的文件路径
pic_path = tomcat_path.substring(0, System.getProperty("catalina.home").lastIndexOf("\\")) + "\\webapps" + "\\App_user_Photo\\";
} else {//服务中自启动Tomcat时获取路径为：D:\Software\Tomcat-8.5
pic_path = tomcat_path + "\\webapps" + "\\CMS" + "\\view" + "\\pictures\\";
}
String uuid=UUID.randomUUID().toString().replaceAll("-", "");
//项目部署使用
String strPath = pic_path;
//本地使用
//String strPath = CMSURL;
pc.setPath(strPath);
//String strPath = Config.PATH;
String suffix = pictureFile.getOriginalFilename().substring(pictureFile.getOriginalFilename().lastIndexOf("."));
suffix = suffix.toLowerCase();
pc.setExt(suffix);
if (suffix.equals(".jpg") || suffix.equals(".jpeg") || suffix.equals(".png") || suffix.equals(".gif")) {
String fileName = uuid + suffix;
pc.setNew_name(fileName);
File targetFile = new File(strPath, fileName);
if (!targetFile.getParentFile().exists()) { //注意，判断父级路径是否存在
targetFile.getParentFile().mkdirs();
}
long size = 0;
//保存
try {
pictureFile.transferTo(targetFile);
size = pictureFile.getSize();
} catch (Exception e) {
e.printStackTrace();
}
return pc;
} else {
/* JSONObject jsonObject = new JSONObject();
jsonObject.put("error", 1);*/
return null;
}
}
}
}
图片实体类（省略service 和 Dao 层 文件）：
package com.shangjian.cms.bean;
import java.util.Date;
/**
*
* @author Wangzhao
*
* 2019年4月28日-上午10:27:44
* 图片实体类
*/
public class Picture {
private int id ;// BIGINT(20) (NULL) NO PRI (NULL) AUTO_INCREMENT SELECT,INSERT,UPDATE,REFERENCES
private Date addtime ;// DATETIME (NULL) YES (NULL) SELECT,INSERT,UPDATE,REFERENCES
private int height ;// INT(50) (NULL) YES (NULL) SELECT,INSERT,UPDATE,REFERENCES
private int width ;// INT(50) (NULL) YES (NULL) SELECT,INSERT,UPDATE,REFERENCES
private String path ;// VARCHAR(100) utf8_general_ci YES (NULL) SELECT,INSERT,UPDATE,REFERENCES
private String new_name;// VARCHAR(100) utf8_general_ci YES (NULL) SELECT,INSERT,UPDATE,REFERENCES
private String old_name;// VARCHAR(100) utf8_general_ci YES (NULL) SELECT,INSERT,UPDATE,REFERENCES
private String ext ;// VARCHAR(50) utf8_general_ci YES (NULL) SELECT,INSERT,UPDATE,REFERENCES
private float size ;// FLOAT (NULL) YES (NULL) SELECT,INSERT,UPDATE,REFERENCES
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public Date getAddtime() {
return addtime;
}
public void setAddtime(Date addtime) {
this.addtime = addtime;
}
public int getHeight() {
return height;
}
public void setHeight(int height) {
this.height = height;
}
public int getWidth() {
return width;
}
public void setWidth(int width) {
this.width = width;
}
public String getPath() {
return path;
}
public void setPath(String path) {
this.path = path;
}
public String getNew_name() {
return new_name;
}
public void setNew_name(String new_name) {
this.new_name = new_name;
}
public String getOld_name() {
return old_name;
}
public void setOld_name(String old_name) {
this.old_name = old_name;
}
public String getExt() {
return ext;
}
public void setExt(String ext) {
this.ext = ext;
}
public float getSize() {
return size;
}
public void setSize(float size) {
this.size = size;
}
}
Controller层添加对象，保存图片字段：
/**
* form添加
*
*/
@ResponseBody
@RequestMapping(value = { "/formadd" }, method = RequestMethod.POST)
public void formadd(HttpServletRequest request, HttpServletResponse response,
@RequestParam("pictureFile") MultipartFile[] pictureFile, String at_tizhi, String at_txt,String title) throws Exception {
// 处理图片组
// 接受保存图片的 ID
List pcidList = new ArrayList();
if (pictureFile != null && pictureFile.length > 0) {
for (int i = 0; i < pictureFile.length; i++) {
MultipartFile file = pictureFile[i];
// 保存图片
Picture pc = new ImgToProjectTools().saveImgThree(file);
int pc_id = picturemanagecontroller.addPicture(request, response, pc);
pcidList.add(pc_id);
}
}
// 构造对象
Aftercare_Tea at = new Aftercare_Tea();
at.setAt_tizhi(at_tizhi);
at.setAt_txt(at_txt);
at.setTitle(title);
at.setPcids(StringUtils.strip(pcidList.toString(), "[]"));
int mpa = iaftercare_teaservice.add(at);
response.sendRedirect(request.getContextPath() + "/view/page/aftercare_tea/aftercare_teaList.jsp");
}如有疑问，请高人留言。。。。交流问题，及时回复。。