BufferedImage image = BufferedImage(800, 600, BufferedImage.TYPE_INT_RGB);

------解决方案--------------------
探讨

new 的时候设置ImageType不就行了么？  

Java code
BufferedImage image = BufferedImage(800, 600, BufferedImage.TYPE_INT_RGB);




对于ARGB类型来说  
int -> 0x  00  00  00  00  
         |    |    |    |  
       alpha red  green blue  

对于RGB来说  
int -> 0x  00  00  00  00  
         |    |    |    |  
       nouse blue green red 

只是多了透明度的alpha值而已  

把ARGB的颜色值和0…