SpringMVC文件上传的配置实例详解
记述一下步骤以备查。
准备工作：
需要把JakartaCommonsFileUpload及JakartaCommonsio的包放lib里。
我这边的包是：
commons-fileupload-1.1.1.jar
commons-io-1.3.2.jar
然后在spring-servlet.xml进行multipartResolver配置，不配置好上传会不好用。
<beanid="multipartResolver"class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <propertyname="maxUploadSize"><value>100000</value></property> <propertyname="defaultEncoding"><value>UTF-8</value></property> </bean>
接下来就是页面了：
注意Form的写法和文件上传组件的写法。
<formaction="uploadPosdetailFile.html"method="post"ENCTYPE="multipart/form-data"> <divclass="form"> <p> <spanclass="req"><inputid="startDateTxt"name="startDateTxt"class="fieldsize4"title="Enterthedate"/></span> <label>StartDate:<span>(Dateformat:MM/dd/yyyy,eg:01/01/2014)</span></label> </p> <p> <spanclass="req"><inputid="endDateTxt"name="endDateTxt"class="fieldsize4"title="Enterthedate"/></span> <label>EndDate:<span>(Dateformat:MM/dd/yyyy,eg:12/25/2014)</span></label> </p> <p> <spanclass="req"><inputtype="file"name="uploadFileCtrl"class="fieldsize4"title="Choosethefile"/></span> <label>Uploadfile:<span>(clickbrowsetochoose)</span></label> </p> </div> <divclass="buttons"> <inputid="queryBtn"type="Submit"class="button"value="Submit"/> </div> </form>
再在控制器里写处理代码，注意参数和页面控件的对应关系：
@RequestMapping(value="/uploadPosdetailFile")
publicStringuploadPosdetailFile(@RequestParam("startDateTxt")StringstartDateTxt,
@RequestParam("endDateTxt")StringendDateTxt,
@RequestParam("uploadFileCtrl")MultipartFilefile,HttpServletRequestrequest,HttpServletResponseresponse){
try{
System.out.println("@@@@@@@@@1.startDateTxt="+startDateTxt);
System.out.println("@@@@@@@@@2.endDateTxt="+endDateTxt);
System.out.println("@@@@@@@@@3.file="+file.getOriginalFilename());//得到上传文件的文件名
if(file.isEmpty()==false){
InputStreamis=file.getInputStream();
InputStreamReaderisr=newInputStreamReader(is);
BufferedReaderbr=newBufferedReader(isr);
Strings;
while((s=br.readLine())!=null){
System.out.println(s);
}
br.close();
isr.close();
is.close();
}
return"/pages/posdetail/uploadposdetailresult/index.jsp";
}catch(Exceptione){
e.printStackTrace();
logger.error(e);
request.setAttribute("error",e.getClass());
request.setAttribute("reason",e.getMessage());
StackTraceElement[]arr=e.getStackTrace();
request.setAttribute("stackTraceElements",arr);
return"pages/error/index.jsp";
}
}