图片文件上传

 1 function submitUpload(){
 2     var option = {
 3             url:path+"/upload/uploadPic.do",//上传的url
 4             dataType:"text",//回调值的数据类型
 5             success:function(responseText){
 6                 var jsonObject = $.parseJSON(responseText);
 7                 //图片回显
 8                 $("#imgsImgSrc").attr("src",jsonObject.realPath);
 9                 //图片相对路径用于数据库保存
10                 $("#imgs").val(jsonObject.relativePath);
11                 //页面保存上次访问路径
12                 $("#lastRealPath").val(jsonObject.realPath);
13             },
14             error:function(){
15                 alert("系统错误");
16             }
17     };
18     //使用ajax方式提交表单
19     $("#form111").ajaxSubmit(option);
20 }

<!-- 复杂类型文件上传 -->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="maxInMemorySize" value="1024000"/>
    </bean>

1 <init-param>
2             <param-name>readonly</param-name>
3             <param-value>false</param-value>
4         </init-param>

@Controller
@RequestMapping("/upload")
public class EbUploadController {
    
    @RequestMapping("/uploadPic.do")
    public void uploadPic(HttpServletRequest request,PrintWriter pw,String lastRealPath) throws IOException {
        MultipartHttpServletRequest req = (MultipartHttpServletRequest) request;
        //获得input类型的name属性
        Iterator<String> inputNames = req.getFileNames();
        String inputName = inputNames.next();
        //获得文件
        MultipartFile file = req.getFile(inputName);
        //将文件转化成字节数组
        byte[] fileBytes = file.getBytes();
        
        //定义文件名
        String fileName = new SimpleDateFormat("yyyyMMddHHmmssSSS").format(new Date());
        Random random = new Random();
        for(int i=0;i<3;i++) {
            fileName = fileName + random.nextInt(10);
        }
        //获得原始文件名
        String oriName = file.getOriginalFilename();
        //获得后缀名
        String suffix = oriName.substring(oriName.lastIndexOf("."));
        String realPath = ECPSUtils.readProp("upload_file_path")+"/upload/"+fileName + suffix;
        String relativePath = "/upload/" + fileName + suffix;
        
        
        //不同主机文件上传,创建jersey客户端
        Client client = Client.create();
        //判断比较上次文件路径是否为空，如果不为空，则需要先删除上次图片
        if(StringUtils.isNotBlank(lastRealPath)) {
            WebResource wr = client.resource(lastRealPath);
            wr.delete();
        }
        
        //指定上传的绝对路径
        WebResource wr = client.resource(realPath);
        //文件上传
        wr.put(fileBytes);
        
        //回传绝对路径与相对路径
        JSONObject jo = new JSONObject();
        jo.accumulate("realPath", realPath);
        jo.accumulate("relativePath", relativePath);
        String responseText = jo.toString();
        pw.print(responseText);
        
        
    }
}