DWR 中的错误：Invalid reply from server和No data receive

其中Invalid reply from server是由于dwr返回的数据格式不符合dwr的规范，
所以才会出现这个问题，其中可以把uk\ltd\getahead\dwr\engine.js改写
格式为

var s0=[];
DWREngine._handleRespone("7743",s0);

修改后在打dwr包jar cvf dwr.jar uk/* dwr-version.properties即可

DWREngine._stateChange = function(batch) {
  if (!batch.completed && batch.req.readyState == 4) {
    try {
      var reply = batch.req.responseText;
      var status = batch.req.status;

      if (reply == null || reply == "") {
        //DWREngine._handleMetaDataError(batch.metadata, "No data received from server");
        return;
      }
      // This should get us out of 404s etc.
      if (reply.search("DWREngine._handle") == -1) {
        //DWREngine._handleMetaDataError(batch.metadata, "Invalid reply from server");
        return;
      }

      if (status != 200) {
        if (reply == null) reply = "Unknown error occured";
        //DWREngine._handleMetaDataError(batch.metadata, reply);
        return;
      }

      eval(reply);

      // We're done. Clear up
      DWREngine._clearUp(batch);
    }
    catch (ex) {
      if (ex == null) 
		  ex = "Unknown error occured";
      //DWREngine._handleMetaDataError(batch.metadata, ex);
    }
    finally {
      // If there is anything on the queue waiting to go out, then send it.
      // We don't need to check for ordered mode, here because when ordered mode
      // gets turned off, we still process *waiting* batches in an ordered way.
      if (DWREngine._batchQueue.length != 0) {
        var sendbatch = DWREngine._batchQueue.shift();
        DWREngine._sendData(sendbatch);
        DWREngine._batches[DWREngine._batches.length] = sendbatch;
      }
    }
  }
};

评论

1 楼 wangxingddg 2013-12-09  

非常感谢，解决了我的问题。谢谢