图片文件上传及其它操作

1、保存图片并获取路径

/**
* 获取图片路径信息
*
* @author zcq
* @param picName
* @param suffix
* @return
*/
private String getPicPath(String picName, String suffix) {
String picPath = "resource" + File.separator + "upload" + File.separator + "headImage" + File.separator
+ picName + suffix;
File newFile = new File(request.getServletContext().getRealPath(File.separator) + picPath);
if (newFile.exists()) {
picPath = getHeadPic(picName + CreateRandomCode.getRandomCode(2), suffix);
}
return picPath;
}

2、移动图片或重命名

/**
* 移动或重命名图片
*
* @author zcq
* @param from
* @param dest
*/
private void movePic(String from, String dest) {
String temp_path = request.getServletContext().getRealPath(File.separator);
// 创建文件夹
File destFile = new File(temp_path + dest.substring(0, dest.lastIndexOf(File.separator)));
destFile.mkdirs();
new File(from).renameTo(new File(temp_path + dest));// 移动图片到指定文件夹
}

3、创建文件夹

/**
* 创建机构文件夹
*
* @author zcq
* @param insId
*/
private void createInsFile(String insId) {
String temp_path = request.getServletContext().getRealPath(File.separator);
String newFilePath = temp_path + "logo" + File.separator + insId;
// 建立对应的目录
new File(newFilePath).mkdir();

String oldPatht = temp_path + "template" + File.separator + "封面logo.png";
String oldPathb = temp_path + "template" + File.separator + "封底logo.png";
String destb = newFilePath + File.separator + "封面logo.png";
String destt = newFilePath + File.separator + "封底logo.png";
copy(oldPatht, destt);
copy(oldPathb, destb);
}

4、复制图片

/**
 * 复制图片
 * 
 * @author zcq
 * @param from
 * @param dest
 */
private void copy(String from, String dest) {
    // 建立对应的目录
    new File(dest.substring(0, dest.lastIndexOf("/"))).mkdirs();

    FileInputStream fromFS = null;
    FileChannel fromFC = null;
    FileOutputStream destFS = null;
    FileChannel destFC = null;
    try {
        fromFS = new FileInputStream(from);
        destFS = new FileOutputStream(dest);
        destFC = destFS.getChannel();
        fromFC = fromFS.getChannel();
        fromFC.transferTo(0, fromFC.size(), destFC);
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            fromFC.close();
            fromFS.close();
            destFC.close();
            destFS.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

5、删除文件

/**
* 删除文件夹中的所有内容而不删除文件夹本身
*
* @author zcq
* @p
4000
aram path
* @return flag
*/
public static boolean delAllFile(String path) {
boolean flag = false;
File file = new File(path);
if (!file.exists()) {
return flag;
}
if (!file.isDirectory()) {
return flag;
}
String[] tempList = file.list();
File temp = null;
for (int i = 0; i < tempList.length; i++) {
if (path.endsWith(File.separator)) {
temp = new File(path + tempList[i]);
} else {
temp = new File(path + File.separator + tempList[i]);
}
if (temp.isFile()) {
temp.delete();
}
if (temp.isDirectory()) {
delAllFile(path + "/" + tempList[i]);// 先删除文件夹里面的文件
temp.delete();// 再删除文件夹本身
flag = true;
}
}
return flag;
}
6、上传图片FORM表单

/**
* 上传Form表单
*
* @author zcq
* @version 1.0
*
*          变更履历：v1.0 2015-2-4 zcq 初版
*/
public class UploadForm {

/** 上传事件ID，主要区分属于哪部分业务使用 */
private String upid;

/** 当上传多个图片，此参数有用，代表第几张图片 */
private String picsheet;

/** 文件列表 */
private MultipartFile Filedata;

/** 临时上传路径 */
private String picType;

public String getUpid() {
return upid;
}

public void setUpid(String upid) {
this.upid = upid;
}

public String getPicsheet() {
return picsheet;
}

public void setPicsheet(String picsheet) {
this.picsheet = picsheet;
}

public MultipartFile getFiledata() {
return Filedata;
}

public void setFiledata(MultipartFile filedata) {
Filedata = filedata;
}

public String getPicType() {
return picType;
}

public void setPicType(String picType) {
this.picType = picType;
}

}

7、上传图片Controller

/**
* 通用上传
*
* @author zcq
* @param request
* @param response
* @param uploadForm
* @return
*/
@ResponseBody
@RequestMapping(value = "upload.action")
public FileUploadResult upload_image(HttpServletRequest request, HttpServletResponse response, UploadForm uploadForm) {
// 图片上传
FileUploadResult result = new FileUploadResult();

String tmp_path = "";
String picName = "";
String picType = uploadForm.getPicType();
// 食材图片上传临时路径
if ("foodExtPic".equals(picType)) {
tmp_path = "resource" + File.separator + "upload" + File.separator + "food_temp" + File.separator + "ext";
}
// 菜谱图片上传临时路径
if ("foodCuisinePic".equals(picType)) {
tmp_path = "resource" + File.separator + "upload" + File.separator + "food_temp" + File.separator
+ "cuisine";
}
MultipartFile patch = uploadForm.getFiledata();
if (patch != null && !patch.isEmpty()) {
String fileName = patch.getOriginalFilename();// 文件名，不包含路径
String suffix = fileName.substring(fileName.lastIndexOf("."));// 取扩展名
File filePath = new File(request.getSession().getServletContext().getRealPath(tmp_path));
File newFile = new File(filePath.getAbsolutePath());// 文件存储路径
if (!newFile.exists()) {
newFile.mkdirs();
}
try {
String newFileName = "";
if (StringUtils.isEmpty(picName)) {
Random random = new Random(9999); // 随机数
newFileName = JodaTimeTools.getCurrentDate(JodaTimeTools.FORMAT_8) + random.nextInt(9999) + suffix;
} else {
newFileName = picName + suffix;
}
patch.transferTo(new File(filePath.getAbsolutePath() + File.separator + newFileName));
result.setResult(true);
if (tmp_path.endsWith(File.separator)) {
result.setUppath(tmp_path + newFileName);
} else {
result.setUppath(tmp_path + File.separator + newFileName);
}
} catch (Exception e) {
e.printStackTrace();
result.setUppath("[300]文件上传出错了！");
}
if (File.separator.equals("\\")) {
result.setUppath(result.getUppath().replaceAll("\\\\", "/"));
}
}
return result;
}