<h3 style="color: rgb(0, 0, 0); font-family: 'ms song', 'Microsoft Yahei', SimHei, Verdana, Helvetic

您的评价:

收藏该经验

Spring3 Web MVC 集成JasperReport生成PDF例子

一：环境搭建与配置

1.      安装JDK6以上版本

2.      安装STS, 下载地址如下：http://www./downloads/sts-ggts

3.      下载并安装Tomcat7

4.      创建一个Dynamic Web Project项目，然后选择创建好的项目右键选择

Configuration->convert to Manve Project.

5.      添加web.xml文件，在WEB-INF目录下新建reports, pages, classes三个子目录

6.      新建index.jsp文件在webapp目录下。

7.      最终的项目目录结构如下：

二：Spring配置详解

在web.xml中配置Spring的DispatchServlet与Context Listener，配置如下：

在express-servlet.xml中配置spring view解析器

三：Jasper Report配置详解

在jasper-views.xml添加如下配置

四：Report内容与数据源

两个报表，演示了子报表的用法，同时还演示了如何想子报表传递数据源，以及参

数传递在报表中显示图像等技巧。需要特别说明的是如果要在报表中使用图像路径

图像必须位于WEB-INF/classes下面，因为JasperReport解析是按找类路径寻找。关

于报表的详细内容建议查看下载以后的源文件，此处不再细说。

五：Controller与注解

Spring3 Controller支持注解(annotation)方式，使用非常方便，生成PDF报表的

Controller代码如下：

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56

package com.gloomyfish.express.controllers;   import java.util.HashMap; import java.util.Map;   import net.sf.jasperreports.engine.JRDataSource; import net.sf.jasperreports.engine.JREmptyDataSource;   import org.apache.log4j.Logger; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.servlet.ModelAndView;   import com.gloomyfish.report.dao.MockDataFactory;   @Controller public class JasperReportController {           protected static Logger logger = Logger.getLogger("controller");           /**      * Retrieves the PDF report file      *      * @return      */     @RequestMapping(value = "/getpdfReport", method = RequestMethod.GET)     public ModelAndView doSalesReportPDF(ModelAndView modelAndView)          {         logger.debug("Received request to download PDF report");                   // Retrieve our data from a mock data provider         MockDataFactory dataprovider = new MockDataFactory();                   // Assign the datasource to an instance of JRDataSource         // JRDataSource is the datasource that Jasper understands         // This is basically a wrapper to Java's collection classes         JRDataSource categoryData  = dataprovider.getCategoriesData();           // parameterMap is the Model of our application         Map<string,object> parameterMap = new HashMap<string,object>();                   // must have the empty data source!!!         JREmptyDataSource emptyData = new JREmptyDataSource();         parameterMap.put("datasource", emptyData);         parameterMap.put("JasperfishSubReportDatasource", categoryData);         parameterMap.put("JasperfishSummaryInfo", dataprovider.getSummaryInfo());                   // pdfReport is the View of our application         // This is declared inside the /WEB-INF/jasper-views.xml         modelAndView = new ModelAndView("pdfReport", parameterMap);                   // Return the View and the Model combined         return modelAndView;     } }</string,object></string,object>

Mock数据工厂代码如下：

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76

package com.gloomyfish.report.dao;   import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.List;   import net.sf.jasperreports.engine.JRDataSource; import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;   public class MockDataFactory {           public MockDataFactory()     {         System.out.println("create mock up data");     }           public GloomyFishSummaryInfoBean getSummaryInfo()     {         GloomyFishSummaryInfoBean summaryBean = new GloomyFishSummaryInfoBean();         summaryBean.setBlogURL("http://blog.csdn.net/jia20003");         summaryBean.setMajorDomain("J2SE, J2EE, WEB developer");         summaryBean.setName("jia20003");         summaryBean.setNickName("gloomyfish");         summaryBean.setRegDate("2003-03-02");         summaryBean.setWorkYears(8);         return summaryBean;     }           public JRDataSource getCategoriesData()     {         List<articlescategory> listData = new ArrayList<articlescategory>();         SimpleDateFormat sdf = new SimpleDateFormat("dd MMM yyyy, hh:mm:ss");         Date createDte = new Date();         ArticlesCategory category1 = new ArticlesCategory();         ArticlesCategory category2 = new ArticlesCategory();         ArticlesCategory category3 = new ArticlesCategory();         ArticlesCategory category4 = new ArticlesCategory();         ArticlesCategory category5 = new ArticlesCategory();         ArticlesCategory category6 = new ArticlesCategory(); //      ArticlesCategory category7 = new ArticlesCategory(); //      ArticlesCategory category8 = new ArticlesCategory(); //      ArticlesCategory category9 = new ArticlesCategory(); //      ArticlesCategory categoryTen = new ArticlesCategory();         category1.setCategoryName("Android Development");         category1.setCount(6);         category1.setCreateDate(sdf.format(createDte));         category2.setCategoryName("Swing Desktop Development");         category2.setCount(21);         category2.setCreateDate(sdf.format(createDte));         category3.setCategoryName("JAVA 2D Image Process");         category3.setCount(56);         category3.setCreateDate(sdf.format(createDte));         category4.setCategoryName("J2EE");         category4.setCount(8);         category4.setCreateDate(sdf.format(createDte));         category5.setCategoryName("HTML5");         category5.setCount(4);         category5.setCreateDate(sdf.format(createDte));         category6.setCategoryName("Network Protocols Research");         category6.setCount(4);         category6.setCreateDate(sdf.format(createDte));         category6.setCategoryName("ExtJS Learning");         category6.setCount(2);         category6.setCreateDate(sdf.format(createDte));         listData.add(category1);         listData.add(category2);         listData.add(category3);         listData.add(category4);         listData.add(category5);         listData.add(category6);         JRBeanCollectionDataSource data = new JRBeanCollectionDataSource(listData);         return data;     }   }</articlescategory></articlescategory>

启动运行在浏览器中访问地址为：http://localhost:8080/express/hello.html

六：Deploy与运行

全部代码完成以后，从IDE中运行Maven的clean与install命令，得到war包

将war拷贝到tomcat的webapps下面即可启动tomcat然后从浏览器访问。

点击[Get PDF Report]会自动在新窗口中打开生成的PDF报表文件。

程序运行打开主页面结果如下：

获取PDF报表在浏览器中打开以后效果如下：

七：常见问题

1.      必须在applicationContext.xml中导入jasper-views.xml资源否则报表不会被编译

          为jasper文件

2.      Web.xml的servlet名必须与spring的xxx-servlet.xml中的xxx一致

3.      Jasper-views.xml中声明的子报表路径参数与数据参数必须与报表文件jrxml中保

         持一致

4.      报表中field变量名必须与Java Class中的field变量名一一对应。

 

八：项目文件打包下载，解压缩作为Maven项目导入以后运行clean与 install命令。