jasper踩坑笔记

学习网址：

教程一：https://www.cnblogs.com/xyyz120/category/1695447.html
代码地址：https://gitee.com/xyyz150/jasperreport-demo?_from=gitee_search

教程二：https://www.yiibai.com/jasper_reports/jasper_report_sections.html

教程三：https://www.cnblogs.com/Monroyhahaha/p/13560009.html

教程四（2.0.4）：https://blog.csdn.net/chenmeiXXL/article/details/79171995

教程五：https://blog.csdn.net/qq_18671415/article/details/119109616?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522163037968016780366559802%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fall.%2522%257D&request_id=163037968016780366559802&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~first_rank_ecpm_v1~times_rank-1-119109616.first_rank_v2_pc_rank_v29&utm_term=ireport&spm=1018.2226.3001.4187

解决方案：

字体问题：pom添加字体jar包

			net.sf.jasperreports
			jasperreports-fonts
			4.0.0
		

JDK5升级到JDK8导致的ireport编译问题：

// 问题： Cannot cast from boolean to Boolean
//$P{PAGE_NUMBER}>1
//解决方案：最外面用Boolean包裹
new Boolean($P{PAGE_NUMBER}.intValue()>1)
// 问题：is undefined for the argument type(s) Integer, int
//解决方案：变量后面添加 .intValue() 方法，将Interger转为基础类型（int）去比较大小
$P{PAGE_NUMBER}.intValue()>1

// 空值问题：$P{isShowNormal}||$P{isShowCn}|| $P{isShowTax}
new Boolean(!$P{isShowNormal}.equals( "" )||!$P{isShowCn}.equals( "" )|| !$P{isShowTax}.equals( "" ))

JasperReports® Library | Jaspersoft Community

JasperReport报表导出踩坑实录 - 小卖铺的老爷爷 - 博客园
https://www.cnblogs.com/laoyeye/p/7707149.html

jasperreport_百度百科
https://baike.baidu.com/item/jasperreport/3413053

JasperReports® Library | Jaspersoft Community
https://community.jaspersoft.com/project/jasperreports-library

JasperReports报表数据源 - JasperReports教程
https://www.yiibai.com/jasper_reports/jasper_report_data_sources.html

JasperReport| JasperReport中使用自定义字体(font)
https://blog.csdn.net/u011479200/article/details/78607812?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522163038081316780366570982%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fblog.%2522%257D&request_id=163038081316780366570982&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~first_rank_v2~rank_v29-3-78607812.pc_v2_rank_blog_default&utm_term=jasperstudio&spm=1018.2226.3001.4450