以下示例演示如何使用Spring Web MVC框架生成PDF格式的文件。首先使用Eclipse IDE,并按照以下步驟使用Spring Web Framework開發(fā)基于動(dòng)態(tài)表單的Web應(yīng)用程序:
com.yiibai.springmvc
包下創(chuàng)建三個(gè)Java類:UserPDFView
和 PDFController
。CLASSPATH
中。完整的項(xiàng)目文件目錄結(jié)構(gòu)如下所示 -
PDFController.java 的代碼如下所示 -
package com.yiibai.springmvc;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;
public class PDFController extends AbstractController {
@Override
protected ModelAndView handleRequestInternal(HttpServletRequest request,
HttpServletResponse response) throws Exception {
//user data
Map<String,String> userData = new HashMap<String,String>();
userData.put("100", "Xiao.Lu");
userData.put("102", "User 102");
userData.put("301", "User 301");
userData.put("400", "User 400");
return new ModelAndView("UserSummary","userData",userData);
}
}
UserPDFView.java 的代碼如下所示 -
package com.yiibai.springmvc;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.view.document.AbstractPdfView;
import com.lowagie.text.Document;
import com.lowagie.text.Table;
import com.lowagie.text.pdf.PdfWriter;
public class UserPDFView extends AbstractPdfView {
protected void buildPdfDocument(Map<String, Object> model, Document document,
PdfWriter pdfWriter, HttpServletRequest request, HttpServletResponse response)
throws Exception {
Map<String,String> userData = (Map<String,String>) model.get("userData");
Table table = new Table(2);
table.addCell("No.");
table.addCell("User Name");
for (Map.Entry<String, String> entry : userData.entrySet()) {
table.addCell(entry.getKey());
table.addCell(entry.getValue());
}
document.add(table);
}
}
GeneratePdf-servlet.xml 配置如下所示 -
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<bean
class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping" />
<bean class="com.yiibai.springmvc.PDFController" />
<bean class="org.springframework.web.servlet.view.XmlViewResolver">
<property name="location">
<value>/WEB-INF/views.xml</value>
</property>
</bean>
</beans>
views.xml 文件中的配置如下所示 -
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<bean id="UserSummary" class="com.yiibai.springmvc.UserPDFView"></bean>
</beans>
在上面的代碼中,創(chuàng)建了一個(gè)PDFController
和UserPDFView
類。iText
庫是用來處理PDF文件格式,并將數(shù)據(jù)轉(zhuǎn)換為PDF
文檔。
完成創(chuàng)建源和配置文件后,發(fā)布應(yīng)用程序到Tomcat服務(wù)器。
現(xiàn)在啟動(dòng)Tomcat服務(wù)器,當(dāng)訪問URL => http://localhost:8080/GeneratePdf/pdf , 如果Spring Web應(yīng)用程序沒有問題,應(yīng)該看到以下結(jié)果: