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From Mike Guo <hongw...@163.com>
Subject Re: what's the Bootstrap when I use "stream" result type for a picture output
Date Thu, 24 Sep 2015 04:18:13 GMT
and I think the finally answer is here:

http://www.oracle.com/technetwork/articles/javase/headless-136834.html <http://www.oracle.com/technetwork/articles/javase/headless-136834.html>



just for record.

Mike.G


> 在 2015年9月24日,12:05,Mike Guo <hongweig@163.com> 写道:
> 
> ok, finally, I got the solution for this one.  although I don’t know why.
> 
> I just add one java param in here:
> java -Djava.awt.headless=true then it will be gone.
> 
> 
> 
> thanks 
> 
> 
> Mike.G
> 
> 
>> 在 2015年9月24日,12:02,Mike Guo <hongweig@163.com> 写道:
>> 
>> ok, I just found it is not related with tomcat or struts.
>> 
>> I just use this code:
>> 
>> 
>> import java.util.Arrays;
>> 
>> import javax.imageio.ImageIO;
>> 
>> public class ListImageFormatters {
>> 
>>   public static void main(String[] args) {
>>       String[] readerFormatNames = ImageIO.getReaderFormatNames();
>>       //[BMP, bmp, jpg, JPG, wbmp, jpeg, png, PNG, JPEG, WBMP, GIF, gif]
>>       System.out.println(Arrays.toString(readerFormatNames));
>> 
>>       //[jpg, BMP, bmp, JPG, jpeg, wbmp, png, JPEG, PNG, WBMP, GIF, gif]
>>       String[] writerFormatNames = ImageIO.getWriterFormatNames();
>>       System.out.println(Arrays.toString(writerFormatNames));
>>   }
>> 
>> }
>> 
>> and it will start the Bootstrap too.
>> 
>> 
>> so, look like it is belong to JDK part. 
>> 
>> but I don’t understand it still. is there anyone can share some tips to me?
>> 
>> 
>> thanks so much
>> 
>> 
>> Mike.G
>> 
>> 
>> 
>> 
>>> 在 2015年9月24日,11:32,Mike Guo <hongweig@163.com> 写道:
>>> 
>>> Anyone? Please.  
>>> 
>>> 
>>> 发自我的 iPhone
>>> 
>>>> 在 2015年9月24日,02:15,Mike Guo <hongweig@163.com> 写道:
>>>> 
>>>> Hi. all.
>>>> 
>>>> I got a very strange issues.
>>>> 
>>>> I tried to generate dynamic check code by struts2.  so, I used buffered image
and javax.imageio for a byteinputstream in my Action.
>>>> 
>>>> look like the function work fine. but strange thing is:  every time when
I access that dynamic check code action. system will be start a java application “Bootstrap”
>>>> 
>>>> please check the picture. also, when quit this Bootstrap java application,
and my tomcat is stop running too.
>>>> 
>>>> 
>>>> 
>>>> would you please share with me what’s this? and why it running by automatic?
>>>> 
>>>> <屏幕快照 2015-09-24 02.13.46.png>
>>>> 
>>>> 
>>>> 
>>>> thanks so much
>>>> 
>>>> 
>>>> Mike.G
>>>> 
>>> 
>>> 
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>>> 
>> 
> 


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