如何使用grails將JFreeChart呈現給gsp

Question

我是grails的新手。我無法將JFree Chart BAr圖呈現給我的gsp。而是將其呈現爲個人形象。我想要我的gsp形式和圖表在同一個gsp上呈現。請幫忙！！！！！！

Answer 1

def chart = ... 

def buffer = chart.createBufferesImage(700, 200) 
def bytes = EncoderUtil.encode(buffer, 'png') 

response.contentType = 'image/png' 
response.contentLength = bytes.length 
def out = response.outputStream 
out.write(bytes) 
out.flush() 
out.close() 

從卡塔赫納哥倫比亞！