有没有DWR的高手啊关于利用dwr上传文件的问题

FXZ555 2012-08-13 02:35:49

dwr：如下：
function uploadFile(){
var uploadFile = dwr.util.getValue("uploadFile");
var uploadFileuploadFile_temp = uploadFile.value.replace("\\","/");
var filenames = uploadFile.value.split("/");
var filename = filenames[filenames.length-1];
fileUpload.uploadFile(uploadFile,filename,function(data){
var file_a= document.getElementById("file_a");
file_a.href=data;
file_a.innerHTML=data;
document.getElementById("filediv").style.display="";
});
}

java代码：

public String uploadFile(InputStream uploadFile, String filename)
throws Exception {
System.out.println("ggggggggggg");
return "hello";
WebContext webContext = WebContextFactory.get();
String realtivepath = ((HttpServletRequest) webContext).getContextPath() + "/upload/";
String saveurl = webContext.getHttpServletRequest().getSession()
.getServletContext().getRealPath("/upload");
File file = new File(saveurl + "/" + filename);
// if (!file.exists()) {
// file.mkdirs();
// }
int available = uploadFile.available();
byte[] b = new byte[available];
FileOutputStream foutput = new FileOutputStream(file);
uploadFile.read(b);
foutput.write(b);
foutput.flush();
foutput.close();
uploadFile.close();
return realtivepath + filename;
}

后台报：
这里得到的uploadFile并不是InputStream类型，但是在DWR的代码中直接当InputStream类型使用了，运行的时候会报错：org.directwebremoting.dwrp.BaseCallMarshaller ---Erroring: batchId[2] message[java.lang.IllegalArgumentException: Missing method or missing parameter converters]

ps:dwr用的是2.0，我估计大概是dwr无法识别那个inputstream参数，但是系统用了dwr2.0,好像是改了3.0会好，但是改3.0的话，系统改动很大（只是猜测是不是3.0的问题而已），问一下又没有哪个高手遇到这样的问题啊

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