struts2整合jasper模版生成PDF导出下载<二>
jasperreport模版制作过程可参见：
http://www.blogjava.net/heis/archive/2009/02/16/254978.html

模版规则参见：
http://blog.csdn.net/czp0608/article/details/7354030

二，添加项目依赖包：

结合ireport4.1.3，项目需要添加相关jar包依赖，特别注意的jar的版本必须兼容ireport模版，否则会解析出错。
我们在maven项目的pom.xml添加依赖包（需要现在资源库添加这些jar包供下载）：

<dependency><groupId>net.sf.jasperreports</groupId><artifactId>jasperreports</artifactId><version>4.1.3</version></dependency><dependency>  <groupId>com.lowagie</groupId>  <artifactId>itext</artifactId>  <version>2.1.7.1</version>        </dependency><dependency>  <groupId>jfree</groupId>  <artifactId>jfreechart</artifactId>  <version>1.0.12</version></dependency><dependency><groupId>org.apache.struts</groupId>  <artifactId>struts2-jasperreports-plugin</artifactId>  <version>2.2.3</version></dependency><dependency><groupId>com.keypoint</groupId>  <artifactId>png-encoder</artifactId>  <version>1.5</version></dependency><dependency>          <groupId>groovy</groupId>          <artifactId>groovy-all</artifactId>          <version>1.7.5</version>         </dependency> <dependency>  <groupId>iTextAsian</groupId>  <artifactId>iTextAsian</artifactId>  <version>4.1.3</version> </dependency> <dependency>  <groupId>com.csair</groupId>  <artifactId>commons-digester</artifactId>  <version>1.7</version> </dependency><dependency>  <groupId>commons-collections</groupId>  <artifactId>commons-collections</artifactId>  <version>2.1.1</version></dependency>