java 实现图片上传功能

1：jsp 页面上传图片按钮在这里我就写相关的代码

        <div class="control-group">
         <label class="control-label">营业执照:</label>
             <div class="controls">
                <input type="file" class="form-control-input" name="yingYeZhiZhaoName"  value="${office.yingYeZhiZhao }"/>
                <%-- <input type="hidden" name="yingYeZhiZhao" value="${office.yingYeZhiZhao }"/> --%>
            </div>
            <div class="controls"><img src="${office.yingYeZhiZhao }" width="203" title="点击更换图片" id="logoImgTag" /></div>
        </div>

2：下面是控制层action 代码

@RequestMapping("/add")
    public String addOffice(HttpServletRequest request, HttpServletResponse response,Office office, Model model, RedirectAttributes redirectAttributes, User user,String officeId,String userId,String roleName,MultipartFile yingYeZhiZhaoName) {
        String originalFilename = yingYeZhiZhaoName.getOriginalFilename();
        if((officeId !=null && !"".equals(officeId))&&(userId !=null && !"".equals(userId)) ){//修改用户信息
            User newUser = systemService.getUser(userId);
            Office newOffice = officeService.get(officeId);

            //用户表基本信息
                if(StringUtils.isNotBlank(user.getPassword())){
                    String password = SystemService.entryptPassword(user.getPassword());
                    newUser.setPassword(password);
                }
                //newUser.setName(user.getName());//公司名称

                //公司表信息
                newOffice.setMaster(office.getMaster());
                newOffice.setMasterSex(office.getMasterSex());
                newOffice.setZhiWei(office.getZhiWei());
                newOffice.setEmail(office.getEmail());//公司邮箱
                newOffice.setName(office.getName());//公司名称
                newOffice.setJianCheng(office.getJianCheng());//公司简称
                newOffice.setProvince(office.getProvince());//省
                newOffice.setCity(office.getCity());//市
                newOffice.setAddress(office.getAddress());
                newOffice.setDuiGongZhangHu(office.getDuiGongZhangHu());//对公账户
                newOffice.setDuiGongShouKuan(office.getDuiGongShouKuan());//对公收款
                newOffice.setDuiGongYinHang(office.getDuiGongYinHang());//对公银行
                newOffice.setQuHao(office.getQuHao());
                newOffice.setTelephone(office.getTelephone());//公司固话
                newOffice.setRemarks(office.getRemarks());//备注

                if(originalFilename !=null && !"".equals(originalFilename)){//如果是重新上传了图片
                    int num=(int)(Math.random()*100000);
                    Map<String, String> map = QiniuUtils.fileUploadPdf(yingYeZhiZhaoName,num+officeId);
                    newOffice.setYingYeZhiZhao(map.get(Constants.QIUNIU_EXHI_IMAGE_SOURCE));
                }
                officeService.updateSysOffice(newOffice);
                systemService.udateUser(newUser);
              //officeService.save(newOffice);

        }else{//添加用户信息

            if(originalFilename !=null && !"".equals(originalFilename)){//如果是重新上传了图片
                int num=(int)(Math.random()*100000);
                Map<String, String> map = QiniuUtils.fileUploadPdf(yingYeZhiZhaoName,num+officeId);
                office.setYingYeZhiZhao(map.get(Constants.QIUNIU_EXHI_IMAGE_SOURCE));
            }
            List<Role> roles = new ArrayList<Role>(0);
            Role role = null;
            User newUser = new User();
            newUser.setPassword(SystemService.entryptPassword(user.getPassword()));// 设置密码
            newUser.setMobile(user.getMobile());// 手机号码
            newUser.setLoginName(user.getMobile());// 登录名(手机或者邮箱)

            role = systemService.getRole(roleName);//这地方判断是2是会展代理商15是会展主办方
            roles.add(role);

            Role admin = new Role();
            admin.setId(Constants.HE_ZUO_SHANG_ADMIN);// 默认注册的用户就是合作商管理员
            roles.add(admin);
            newUser.setRoleList(roles);

            Area area = new Area();
            area.setId("1");
            office.setCode(UUID.randomUUID().toString());
            office.setType("1");
            office.setGrade("1");
            office.setUseable("1");
            office.setDelFlag("0");
            User createBy = new User();
            createBy.setId("1");
            Office poffice = new Office();
            poffice.setId("0");
            office.setParent(poffice);
            office.setParentIds("0,");
            office.setArea(area);
            office.preInsert();
            office.setIsNewRecord(true);
            office.setCreateBy(createBy);
            office.setUpdateBy(createBy);
            office.setRole(role);
            officeService.register(office);
            newUser.setOffice(office);
            newUser.setCompany(office);
            newUser.setName(office.getName());
            systemService.saveUser(newUser);

        }

        String id = "0".equals(office.getParentId()) ? "" : office.getParentId();
        return "redirect:" + adminPath + "/sys/office/list?id=" + id + "&parentIds=" + office.getParentIds();
    }

以上实现图片功能是把图片上传到七牛服务器上

注意

<input type="file" class="form-control-input" name="yingYeZhiZhaoName"  value="${office.yingYeZhiZhao }"/> 控件里面的name 不要和提交时表单对象里面的属性一样，所以这地方最好不要写对象属性的名字
3：下面是七牛部分代码

/**
     * 七牛招展函上传
     * @param file
     * @param name
     * @return
     */
    public static Map<String, String> fileUploadPdf(MultipartFile file, String name) {
        Map<String, String> map = new HashMap<String, String>();
        try {
            UploadManager uploadManager = new UploadManager();

            // 上传到云中的文件名
            // String newName = name+System.currentTimeMillis();

            byte[] bytes = file.getBytes();

            uploadManager.put(bytes, name, getUpToken0(name));
            String isProduct = Global.getConfig("isProduct");
            String url = null;
            if ("Y".equalsIgnoreCase(isProduct)) {
                url = Constants.QIUNIU_EXHI_IMAGE_URL;
            } else if ("N".equalsIgnoreCase(isProduct)) {
                url = Constants.QIUNIU_TEST_IMAGE_URL;
            }
            map.put("fileUrl", url + name);
            map.put("disposeUrl", url + name + ":result");
        } catch (Exception e) {
            log.error("七牛上传文件失败:" + e.getMessage());
            e.printStackTrace();
        }
        return map;
    }