日期:2014-05-17  浏览次数:20950 次

JasperReport 在Spring中的使用 问题
最近看了《JasperReports for Java Developers》,里面讲了怎么在Spring里使用JasperReport
照着里面的例子做了一下,例子是没有问题的,但是我把展现方式改为由JasperReportsHtmlView 展现就出问题了,所有的图片都出不来,是不是使用JasperReportsHtmlView还要配置其它的拦截器或是什么?我在Google里找了一通,也没能解决主要是E文不太好国外的论坛也找了,看得头大,所以把代码贴出来,那位用过的能指点一下,谢过了

web配置文件
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
	<display-name>ReportWebApp</display-name>
	<welcome-file-list>
		<welcome-file>index.jsp</welcome-file>
	</welcome-file-list>
	<servlet>
		<servlet-name>jasperSpring</servlet-name>
	<servlet-class>org.springframework.web.servlet.DispatcherServlet 
        </servlet-class>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>jasperSpring</servlet-name>
		<url-pattern>/jasperSpring/*</url-pattern>
	</servlet-mapping>
</web-app>


前台Jsp页面:
<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
	<head>
		<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
	<title>Generate Report</title>
	</head>
<body>
			Click on the button to generate the report.
<form name="reportForm" action="jasperSpring/report" method="get"><input
	type="submit" name="submitButton" value="Submit" /></form>
</body>
</html>


jasperSpring-servlet.xml的内容:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd">
<beans>
	<bean id="dataSource"
		class="org.springframework.jdbc.datasource.DriverManagerDataSource" destroy-method="close">
		<property name="driverClassName">
			<value>com.microsoft.jdbc.sqlserver.SQLServerDriver</value>
		</property>
		<property name="url">
			<value>jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=Northwind</value>
		</property>
		<property name="username">
			<value>sa</value>
		</property>
		<property name="password">
			<value>sa</value>
		</property>
	</bean>
	<bean id="publicUrlMapping"
		class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
		<property name="mappings">
			<props>
				<prop key="report">jasperController</prop>
			</props>
		</property>
	</bean>
	<bean id="jasperController"
		class="net.aachina.jasperreport.JasperSpringController">
		<property name="dataSource">
			<ref local="dataSource" />
		</property>
	</bean>
	<bean id="viewResolver"
		class="org.springframework.web.servlet.view.ResourceBundleViewResolver">
		<property name="basename" value="views" />
	</bean>
	<bean id="ImageServlet" class="net.sf.jasperreports.j2ee.servlets.ImageServlet">
	</bean>
</beans>


引用
views.properties中的内容

report.class=org.springframework.web.servlet.view.jasperreports.JasperReportsPdfView
#report.class=org.springframework.web.servlet.view.jasperreports.JasperReportsHtmlView
#report.class=net.aachina.jasperreport.render.JasperReportsHtmlView
report.url=reports/ChartReportDemo.jasper


控制器JasperSpringController的源码: