gwt-rpc

问题 I have a RPC service with the following method: public List<Serializable> myMethod(TransactionCall call) {...} But I get a warning when this method is analyzed, and then the rpc call fails Analyzing 'my.project.package.myService' for serializable types Analyzing methods: public abstract java.util.List<java.io.Serializable> myMethod(my.project.package.TransactionCall call) Return type: java.util.List<java.io.Serializable> [...] java.io.Serializable Verifying instantiability (!) Checking all

问题 I have a RPC service with the following method: public List<Serializable> myMethod(TransactionCall call) {...} But I get a warning when this method is analyzed, and then the rpc call fails Analyzing 'my.project.package.myService' for serializable types Analyzing methods: public abstract java.util.List<java.io.Serializable> myMethod(my.project.package.TransactionCall call) Return type: java.util.List<java.io.Serializable> [...] java.io.Serializable Verifying instantiability (!) Checking all

问题 I want to access a GWT service from a Python script, so I want to generate a x-gwt-rpc request manually. Can't seem to find any info on the format of a GWT RPC call, since everybody does it from Java (so the call is generated by the framework). Where can I find some detailed documentation about this format? 回答1: Don't think it is a trivial task to do that, but because gwt is opensource i would say that the source-code is a pretty good documentation for how it works, if you know java that is.

问题 I've been using Objectify up till now, but now I have to deal with some code using JDO. I'm having problems with basic stuff that is easy with Objectify, specifically: if an object has either a List or an array as a member, I can't get that to persist. I have a class FileInfoBatch (code indents lost here, don't know why) containing a List of FileInfo: @PersistenceCapable public class FileInfoBatch implements Serializable{ private static final long serialVersionUID = 1L; @PrimaryKey

问题 I am using GWT and I want to upload an image and display its preview without interacting with the server, so the gwtupload lib does not look like a way to go. After the image is uploaded and displayed, user can optionally save it. The idea is to send the image through GWT-RPC as a Base64 encoded String and finally store it in the DB as a CLOB. Is there any easy way to do it either with GWT or using JSNI? 回答1: This document answers your question: Reading files in JavaScript using the File APIs

问题 I have a strange issue (hope you can help): I am working on a GWT Web Application that has times when more than 4 - 5 GWT RPC calls are made in the same time - as far as time is concerned. Every once in a while - once every 15 calls maybe? The return Object from one call, gets 'assigned' to another. I have proof of this by using the gwt-log library on the client side. Here the return object of the HistoryChangesCount call, got assigned to the modelingGetTemplates call also. Thus resulting in

问题 I've written a quick GWT app with the following code: MyTaskService package com.google.gwt.mytasks.client; import com.google.gwt.core.client.GWT; import com.google.gwt.user.client.rpc.RemoteService; import com.google.gwt.user.client.rpc.RemoteServiceRelativePath; @RemoteServiceRelativePath("taskAction") public interface MyTasksService extends RemoteService { public void addTask(String title, String description); } web.xml <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE web-app PUBLIC "-//Sun

问题 This question is an extension of previous question. GWT Cannot compile the project Please have a look and tell me what's wrong with it. Client side. Twitter.java package in.isuru.twitter.client; import java.util.ArrayList; import twitter4j.Tweet; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.core.client.GWT; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.ui.FlexTable; import com.google.gwt.user.client.ui.FlexTable.FlexCellFormatter

问题 I have code to browse a file . i have to send the file to server side. I dont know how to pass file to Server Using RPC. formPanel.addFormHandler(new FormHandler() { public void onSubmitComplete(final FormSubmitCompleteEvent event) { // TODO Auto-generated method stub Window.alert(event.getResults()); } public void onSubmit(final FormSubmitEvent event) { // TODO Auto-generated method stub event.setCancelled(true); } }); formPanel.setMethod(FormPanel.METHOD_POST); formPanel.setEncoding

问题 I am new to GWT. I am trying to Upload a file. I need the data and the name of the file on the server side. the file is doc type and can be of size more then 1 MB to 5MB. Plz suggest me How to do it. any sample code will be of great help. 回答1: There is a really nice little libary called GwT-UPLOAD: http://code.google.com/p/gwtupload/ There is a quick start guide here: http://code.google.com/p/gwtupload/wiki/GwtUpload_GettingStarted 来源： https://stackoverflow.com/questions/9616117/how-to-upload