程序没有报错，但是图片就是传不下去啊高人指点上

package com.webapp.model.service.impl;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;

import javax.imageio.ImageIO;
import javax.jws.WebService;

import org.directwebremoting.annotations.Param;
import org.directwebremoting.annotations.RemoteMethod;
import org.directwebremoting.annotations.RemoteProxy;
import org.directwebremoting.spring.SpringCreator;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGEncodeParam;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
import com.webapp.model.businessobject.Errorfeedback;
import com.webapp.model.dao.ErrorfeedbackDao;
import com.webapp.model.service.ErrorfeedbackService;
import com.webapp.model.service.GridJsonDataService;
import com.webapp.model.service.UsersService;
import com.webapp.model.service.UtilService;
import com.webapp.util.GuidCreator;
@Service
@WebService(endpointInterface = "com.webapp.model.service.ErrorfeedbackService")
@RemoteProxy(creator = SpringCreator.class, creatorParams = @Param(name = "beanName", value = "errorfeedbackServiceImpl"), name = "ErrorfeedbackService")

public class ErrorfeedbackServiceImpl implements ErrorfeedbackService {
    @Autowired
    private ErrorfeedbackDao errorfeedbackDao;
    
    @Autowired
    private UsersService usersService;
    
    @Autowired
    private UtilService utilService;
    
    @RemoteMethod
    public String saveErrorfeedback(Errorfeedback errorfeedback){
        GuidCreator guid = new GuidCreator();
        String typeStr = errorfeedback.getPicture().substring(errorfeedback.getPicture().lastIndexOf(".")+1);
        if(!"jpg".equals(typeStr) && !"png".equals(typeStr) && !"gif".equals(typeStr) && !"bmp".equals(typeStr)){
            return "typeError";
        }else{
//            errorfeedback.setPicture(errorfeedback.getPicture().substring(errorfeedback.getPicture().lastIndexOf("\\")));
            System.out.println("图片路径："+errorfeedback.getPicture());
            System.out.println("E:\\testCreateImg");
            String picPath = "";
            try {
                picPath = LoadImageToServer(errorfeedback.getPicture(),"E:\\testCreateImg");
                if(picPath != null && !"".equals(picPath)){
                    errorfeedback.setPicture(picPath);
                }
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        errorfeedback.setGid(guid.createNewGuid(3));
        errorfeedback.setSubmitby(utilService.getCurrentUser().getGid());
        errorfeedback.setSubmitTime(new Date());
//        try {
//            Image image = ImageIO.read(new File(errorfeedback.getPicture()));
//            errorfeedback.setPicture(new String(imageToBytes(image, "jpg")));
//        } catch (Exception e) {
//            // TODO: handle exception
//        }
        this.errorfeedbackDao.save(errorfeedback);
        return "true";
    }
    
    
    public String LoadImageToServer(String filePath,String serverPath) throws Exception { 
        String resultPath = "";          //上传后图片所在的路径 
        FileOutputStream out = null;     //文件输出流 
        try {                               //验证图片上传的格式是否正确 
            File f = new File(filePath); 
            if (!f.isFile()) { 
                throw new Exception(" 不是图片文件!"); 
            } 
            if (f != null && f.exists()) {          //这里的ImageIO属于java工厂类，在工厂类class里面，调用的System.gc()，频繁调用会造成dump，需要考虑优化 
                BufferedImage image = ImageIO.read(f); // 读入文件 
                if (image != null) { 
                    BufferedImage tag = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_INT_RGB);  //构造一个类型为预定义图像类型之一的 BufferedImage 
                    tag.getGraphics().drawImage(image, 0, 0, image.getWidth(), image.getHeight(), null);                     //绘制所需要尺寸大小的图片 
                    /* 
                     * 以下生成图片上传后在服务器上的新路径 
                     */ 
                    int lastLength = filePath.lastIndexOf("."); 
                    Date date = new Date(System.currentTimeMillis()); 
                    String strDate = new SimpleDateFormat("yyyyMMddhhmmss").format(date); 
                    int random = (int)(Math.random()*99); 
                    String imageName = strDate + random;                          //以系统时间来随机的创建图片文件名 
                    String fileType = filePath.substring(lastLength);              //获取上传图片的类型 
                    resultPath = serverPath + "\\" + imageName + fileType; 
                    /* 
                     * 进行图片的绘制 
                     */ 
                    out = new FileOutputStream(resultPath); 
                                        //下面的代码下边都有黄线不知道和这个有没有关系……………………
                    JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out); 
                    JPEGEncodeParam param = 
                    encoder.getDefaultJPEGEncodeParam(tag); 
                    param.setQuality(0.95f, true); //95%图像       
                    param.setDensityUnit(1);                //像素尺寸单位.像素/英寸     
                    param.setXDensity(300);                  //水平分辨率       
                    param.setYDensity(300);                 //垂直分辨率 
                    encoder.setJPEGEncodeParam(param); 
                    encoder.encode(tag); 
                    tag = null; 
                } 
            } 
            f = null; 
        } catch (Exception ex) { 
            ex.printStackTrace(); 
        } finally { 
            out.close(); 
            out = null; 
        } 
        return resultPath; 
    } 

    
}