GWT IncompatibleRemoteServiceException [英] GWT IncompatibleRemoteServiceException

问题描述

直截了当，但令人生气，我在RPC调用中遇到这个错误：

处理此调用时抛出了IncompatibleRemoteServiceException。
com.google.gwt.user.client.rpc.IncompatibleRemoteServiceException：com.milkrun.core.dto.UserBasket的无效类型签名

这里是类导致的问题：

  public class UserBasket implements Serializable {
 
 private static final long serialVersionUID = -6761554796753637352L ; 
 
 public int userBasketID; 
 public String description; 
 public String userID; 
 
公共列表< BasketItem>项目; 
 
 public String createUserId; 
 public Timestamp createTs; 
 public String lastUpdateUserId; 
 public Timestamp lastUpdateTs; 
 public Timestamp effStartTs; 
 public Timestamp effStopTs; 
 
 
  

和BasketItem类型：

  public class BasketItem implements Serializable {
 
 
 private static final long serialVersionUID = -17764683871112216L; 
 
 public int basketItemID; 
 
 public String upc; 
 public String description; 
 public String brandName; 
 
 public BigDecimal价格; 
 
 public String createUserId; 
 public Timestamp createTs; 
 public String lastUpdateUserId; 
 public Timestamp lastUpdateTs; 
 public Timestamp effStartTs; 
 public Timestamp effStopTs; 
 
} 
  

我不确定我要出错的地方，我宁愿不使用IsSerializable，因为这些DTOs在一个由android应用程序共享的项目中，而IsSerializable也是GWT堆栈的一部分。

我在开发模式下遇到了这个问题。在我的情况下，问题是码头没有做一个干净的。我在工作区/ .metadata / .plugins / org.eclipse.wst.server.core /（例如my-module.jar）中手动删除了我的gwt模块的.jar文件。

然后，服务器端和客户端的类再次相同。

Straight forward but maddening, I get this error on my RPC call:

An IncompatibleRemoteServiceException was thrown while processing this call. com.google.gwt.user.client.rpc.IncompatibleRemoteServiceException: Invalid type signature for com.milkrun.core.dto.UserBasket

Here is the class causing the issue:

public class UserBasket implements Serializable{

     private static final long serialVersionUID = -6761554796753637352L;

    public int userBasketID;
    public String description;
    public String userID;

    public List<BasketItem> items;

    public String createUserId;
    public Timestamp createTs;
     public String lastUpdateUserId;
    public Timestamp lastUpdateTs;
    public Timestamp effStartTs;
    public Timestamp effStopTs;

}

And the type BasketItem:

public class BasketItem implements Serializable {


private static final long serialVersionUID = -17764683871112216L;

public int basketItemID;

public String upc;
public String description;
public String brandName;

public BigDecimal price;

public String createUserId;
public Timestamp createTs;
public String lastUpdateUserId;
public Timestamp lastUpdateTs;
public Timestamp effStartTs;
public Timestamp effStopTs;

}

I'm not sure where I'm going wrong and I'd rather not use IsSerializable as these DTOs are in a project shared by an android app too and IsSerializable is part of the GWT stack.

解决方案

I experienced this issue with the jetty in development mode. The problem in my case was that the jetty didnt do a "clean". I removed manually the .jar of my gwt module in workspace/.metadata/.plugins/org.eclipse.wst.server.core/ (e.g. my-module.jar)

After that, the class on the server side and client site were the same again.

这篇关于GWT IncompatibleRemoteServiceException的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！