GWT RequestFactory性能 [英] GWT RequestFactory Performance

问题描述

我有一个关于RequestFactory和GWT性能的问题。我有一个带有8个字段的域实体，返回大约1000个EntityProxies。请求触发和响应之间的时间约为20秒。我这样做，但返回10个EntityProxies和时间是17秒，几乎相同。

这是因为我在开发模式，或者当我释放代码到网络的时间将是相同的？

有什么方法可以提高性能？ ，我只是读数据，所以也许只有读和不写的东西可能是解决方案？

我读了这篇文章，类似于我的问题：

GWT Requestfactory性能建议 p>

非常感谢。

PD：我在某处读到一种解决方案可能是在服务器中创建一个xml，发送给客户端并在那里重新创建对象，我不想这样做，因为它会真的改变我的应用程序的设计。

感谢大家的帮助，我现在意识到可能使用Request Factory来检索数千条记录是一个错误。

我根据这篇文章最初使用定位器来覆盖isLive（）和Find（）方法：
gwt-requestfactory-performance-suggestions

响应时间减少到13秒左右，但仍然过高。

但我很容易解决它。我创建了一个新的数据库表，其中每个字段都具有由分隔符连接的所有相同字段记录（1000+）（每个数据库字段的长度约为10000），并且表中只有一条记录大约8个领域。

类似这样：

  Field1 | Field2 | Field3 
  

Field1val; Field1val; Field1val; ....... | Field2val; Field2val; Field2val; ...... | Field3val; Field3val; Field3val; ......

我通过RequestFactory将一条记录返回给我的客户端，它大大降低了速度！我在客户端解析这个大的字符串，其持续时间约为500毫秒。所以，不要浪费大约20秒钟，现在大约需要1-2秒钟。

顺便说一句，我只显示信息，没有必要插入，删除或更新记录，所以这个解决方案适用于我。

以为我可以分享这个解决方案。

I have a question regarding the performance of RequestFactory and GWT. I have a Domain Entity with 8 fields that returns around 1000 EntityProxies. The time between the request fires and it responds is around 20 seconds. I do the same but returning 10 EntityProxies and the time is 17 seconds, almost the same.

Is this because I'm working in development mode, or when I release the code to the web the time will be the same?

Is there any way to improve the performance? , I'm only reading data so perhaps something that only read and doesn't writes may be the solution?

I read this post with something similar to my problem:

GWT Requestfactory performance suggestions

Thanks a lot.

PD: I read somewhere that one solution could be to create an xml in the server, send it to the client and recreate the object there, I don't want to do this because it would really change the design of my app.

解决方案

Thank you all for the help, I realize now that perhaps using Request Factory to retrieve thousands of records was a mistake.

I initially used a Locator to override isLive() and Find() methods according to this post: gwt-requestfactory-performance-suggestions

The response time was reduced to about 13 seconds, but it is still too high.

But I solved it easily. Instead of returning 1000+ Entities , I created a new database table which each field has all the same field records (1000+) concatenated by a separator (each db field has a length of about 10000 ) and I only have one record in the table with around 8 fields.

Something like this:

 Field1           |           Field2          |           Field3         

Field1val;Field1val;Field1val;....... | Field2val;Field2val;Field2val;...... | Field3val;Field3val;Field3val;......

I return that One record through RequestFactory to my client and it reduced the speed a lot!, around 1 second. I parse this large String in the client and the duration of that is about 500ms. So instead of wasting around 20 seconds now it takes around 1-2 seconds to accomplish the same.

By the way I am only displaying information, it is not necessary to Insert, Delete or Update records so this solution works for me.

Thought I could share this solution.

这篇关于GWT RequestFactory性能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！