Java实现图片上传

package com.action; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.text.SimpleDateFormat; import java.util.Date; import javax.xml.ws.Action; import com.bean.Image; import com.dao.ImageDao; import com.opensymphony.xwork2.ActionSupport; import org.apache.struts2.ServletActionContext; public class UploadAction extends ActionSupport{ /** * */ private static final long serialVersionUID = 1L; private final static String file = "files"; private Image image; private File myFile; private String myFileFileName;//保存的是上传图片的全名 // @Action public String upImage(){ System.out.println("上传的文件名为："+myFileFileName);//打印出：上传的文件名为： String realPath = ServletActionContext.getServletContext().getRealPath(file + "/"); //将上传的图片名称保存到数据库中，但是名字全部统一以当前系统时间命名 SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd HHmmss"); String end = myFileFileName.substring(myFileFileName.indexOf(".")); String newPhothPath = "/files/"+sdf.format(new Date())+end;// System.out.println(newPhothPath); Image img = new Image(); image = new Image(); image.setImg_path(newPhothPath); img.setImg_path(newPhothPath); ImageDao dao = new ImageDao(); dao.insertImage(img);// copyFiles(realPath);// return "showOk"; } /** * 把目标文件拷贝到服务器下的指定目录中 * @param realPath */ private void copyFiles(String realPath) { try { InputStream is = new FileInputStream(myFile); SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd HHmmss"); String end = myFileFileName.substring(myFileFileName.indexOf(".")); OutputStream os = new FileOutputStream(realPath + "/"+ sdf.format(new Date())+end); int len = 0; byte[] b = new byte[is.available()]; while((len = is.read(b)) != -1){ os.write(b, 0, len); os.flush(); } is.close(); os.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } //--------------------------------------set和ge方法--------------------------------------// public File getMyFile() { return myFile; } public void setMyFile(File myFile) { this.myFile = myFile; } public String getMyFileFileName() { return myFileFileName; } public void setMyFileFileName(String myFileFileName) { this.myFileFileName = myFileFileName; } public Image getImage() { return image; } public void setImage(Image image) { this.image = image; } }