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运用jfreechart制作柱状图时
<%@ page import = "........
org.jfree.chart.renderer.category.BarRenderer3D,
org.jfree.chart.renderer.category.BarRenderer,
........."
......
BarRenderer3D renderer = new BarRenderer3D();
renderer.setItemMargin(1.0);
renderer.setMinimumBarLength(0.3);
renderer.setMaxBarWidth(0.07);
.......
结果出现错误:
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 24 in the jsp file: /12.jsp
Generated servlet error:
The method setMaxBarWidth(double) is undefined for the type BarRenderer3D
而隐去renderer.setMaxBarWidth(0.07);这行则没有错误
所需的class路径设置是正确的,请问是什么问题呢? |
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