Struts2 + JasperReport应用一:导PDF,Excel,HTML显示

我用的是struts2.1.6,从struts2的自带的demo当中可以看到它的web.xml配置与之前的有点不同,有另外一种配置:

<filter>
		<filter-name>Struts2</filter-name>
		<filter-class>
			org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
		</filter-class>
	</filter>
	<filter-mapping>
		<filter-name>Struts2</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>

 

这样的配置可以在web.xml配置我们的serlvet,如果写成以前的写法你配置上serlvet会报错。

 

将我们设置的报表文件和编译文件放到WebRoot下面的jasper下面,添加struts2对jasperReport的插件。

构造我们的JavaBean如下(get,set方法省略了):

public class Person {
	private String person_Id;

	private String person_name;

	private String person_age;

	private String person_address;
}

 构造我们的service:

public class PersonService {
	public List<Person> getAllPerson() {
		List<Person> perList = new ArrayList<Person>();
		perList.add(new Person("101", "小博", "22", "湖北"));
		perList.add(new Person("102", "张三", "21", "湖南"));
		perList.add(new Person("103", "李四", "23", "江苏"));
		perList.add(new Person("104", "王五", "22", "上海"));
		return perList;
	}
}

 构造action:

public class PersonAction extends ActionSupport {

	private List<Person> presonList = null;

	private Map<String, String> reportParameter = null;

	@Override
	public String execute() throws Exception {
		presonList = new PersonService().getAllPerson();
		reportParameter = new HashMap<String, String>();
		reportParameter.put("year", "2009");
		reportParameter.put("unit_mc", "武汉XX科技有限公司");
		return SUCCESS;
	}
	
	public String htmlView(){
		return SUCCESS;
	}
	
	public List<Person> getPresonList() {
		return presonList;
	}

	public void setPresonList(List<Person> presonList) {
		this.presonList = presonList;
	}

	public Map<String, String> getReportParameter() {
		return reportParameter;
	}

	public void setReportParameter(Map<String, String> reportParameter) {
		this.reportParameter = reportParameter;
	}
}

 struts配置如下:

<!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
        "http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
	<constant name="struts.action.extension" value="action" />

	<package name="jasperReport"
		extends="struts-default,jasperreports-default">
		<action name="PDF" class="com.mengya.action.PersonAction">
			<result name="success" type="jasper">
				<param name="location">/jasper/preson.jasper</param>
				<param name="dataSource">presonList</param>
				<param name="reportParameters">reportParameter</param>
				<param name="format">PDF</param>
			</result>
		</action>

		<action name="XLS" class="com.mengya.action.PersonAction">
			<result name="success" type="jasper">
				<param name="location">/jasper/preson.jasper</param>
				<param name="dataSource">presonList</param>
				<param name="reportParameters">reportParameter</param>
				<param name="format">XLS</param>
			</result>
		</action>
		<action name="XML" class="com.mengya.action.PersonAction">
			<result name="success" type="jasper">
				<param name="location">/jasper/preson.jasper</param>
				<param name="dataSource">presonList</param>
				<param name="reportParameters">reportParameter</param>
				<param name="format">XML</param>
			</result>
		</action>
		<action name="CSV" class="com.mengya.action.PersonAction">
			<result name="success" type="jasper">
				<param name="location">/jasper/preson.jasper</param>
				<param name="dataSource">presonList</param>
				<param name="reportParameters">reportParameter</param>
				<param name="format">CSV</param>
			</result>
		</action>
		<!-- 
			location:是指我们刚才用iReport编译生成的jasper文件
			dataSource:是指我们执行的数据库查询结果,在testAction类里把这个结果查询出来,这个参数必须要有
			format:是指需要输出的类型,默认是PDF,其他的输出类型有:XML、HTML、XLS、CSV、RTF ,注意这里一定要大写
			reportParameters:jasperreport中的Parameters
			除了这几个参数,还有下列参数:
			delimiter:是指如果输出类型为CSV的话,指定分割符,默认为“,”
			parse:是指是否解析location参数中的EL表达式,默认为 true
			contentDisposition:指定disposition,默认为“inline”,如果设为“attachment”就是强制下载
			documentName:输出的文件名
			imageServletUrl:生成图形的路径
		-->
	</package>
</struts>

 页面调用:

  <a href="PDF.action">PDF</a>
	        <a href="XLS.action">XLS</a>
	        <a href="XML.action">XML</a>
	        <a href="CSV.action">CSV</a>

 如果要想以HTML形式显示报表内容则还需要在web.xml配置jasperReport自带的一个servlet如下:

<!-- JasperReport包中自带的Servlet,用来做为HTML形式显示报表的时候报表的图片,要在这里配置上,图片在jasperReport包中 -->
	<servlet>
		<servlet-name>JasperReportImageServlet</servlet-name>
		<servlet-class>
			net.sf.jasperreports.j2ee.servlets.ImageServlet
		</servlet-class>
	</servlet>

	<servlet-mapping>
		<servlet-name>JasperReportImageServlet</servlet-name>
		<url-pattern>/image</url-pattern>
	</servlet-mapping>

 

action中不需要修改,只需在struts.xml里添加一个HTML不配置如下:

<action name="HTML" class="com.mengya.action.PersonAction">
			<result name="success" type="jasper">
				<param name="location">/jasper/preson.jasper</param>
				<param name="dataSource">presonList</param>
				<param name="reportParameters">reportParameter</param>
				<param name="format">HTML</param>
				<param name="imageServletUrl">
					<![CDATA[/image?image=]]>
				</param>
			</result>
		</action>

 imageServletUrl的值就是上面的serlvet的路径,该servlet就是生成了一个图形,如果不配置该serlvet则页面上有图片没显示的样子。

页面调用如:

<a href="HTML.action">HTML</a>

 

 

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