如何将图像作为参数传递给jasper报告？ [英] How can I pass an image as a parameter to jasper report?

问题描述

如何从Java应用程序将Image作为参数传递给Jasper Report？



我尝试过：



java.awt.HashMap params = new java.awt.HashMap（）;

params.put（logo，new javax.swing .ImageIcon（D：\\1.jpg）。getImage（））;

How can I pass an Image as a parameter to Jasper Report from a java application?

What I have tried:

java.awt.HashMap params = new java.awt.HashMap();
params.put("logo", new javax.swing.ImageIcon("D:\\1.jpg").getImage());

推荐答案

我认为你传递图像的方式还可以。在jrxml中使用它：



< image>

< reportElement ... />

< imageExpression class =java.awt.Image><！[CDATA

I think the way you are passing the image is OK. Use it in the jrxml as:

<image>
<reportElement ... />
<imageExpression class="java.awt.Image"><![CDATA

P {logo}]]>< / imageExpression>

< / image>

即确保表达式类是java.awt.Image，表达式本身指向正确的参数。

P{logo}]]></imageExpression>
</image>
I.e. make sure the expression class is java.awt.Image and the expression itself points to the correct parameter.

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