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Spring MVC-集成(Integration)-生成Excel示例(转载实践)

时间:2017-09-10 12:31:14      阅读:161      评论:0      收藏:0      [点我收藏+]

标签:usermod   response   div   font   数据   xmlns   get   www.   窗体   

以下内容翻译自:https://www.tutorialspoint.com/springmvc/springmvc_excel.htm

说明:示例基于Spring MVC 4.1.6

以下示例显示如何使用Spring Web MVC框架生成Excel。首先,让我们使用Eclipse IDE,并按照以下步骤使用Spring Web Framework开发基于动态窗体的Web应用程序:

描述
1 创建一个名为TestWeb的项目,在一个包com.tutorialspoint下,如Spring MVC - Hello World Example章节所述。
2 创建一个Java类UserExcelView,ExcelController下com.tutorialspoint包。
3 从maven存储库页面下载Apache POI库Apache POI。把它放在你的CLASSPATH中。
4 最后一步是创建所有源和配置文件的内容并导出应用程序,如下所述。

ExcelController.java

package com.tutorialspoint;

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 ExcelController extends AbstractController {

   @Override
   protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception {
      //user data
      Map<String,String> userData = new HashMap<String,String>();
      userData.put("1", "Mahesh");
      userData.put("2", "Suresh");
      userData.put("3", "Ramesh");
      userData.put("4", "Naresh");
      return new ModelAndView("UserSummary","userData",userData);
   }
}

UserExcelView.java

package com.tutorialspoint;

import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.springframework.web.servlet.view.document.AbstractExcelView;

public class UserExcelView extends AbstractExcelView {

   @Override
   protected void buildExcelDocument(Map<String, Object> model, HSSFWorkbook workbook, HttpServletRequest request, HttpServletResponse response)
         throws Exception {
         Map<String,String> userData = (Map<String,String>) model.get("userData");
         //create a wordsheet
         HSSFSheet sheet = workbook.createSheet("User Report");

         HSSFRow header = sheet.createRow(0);
         header.createCell(0).setCellValue("Roll No");
         header.createCell(1).setCellValue("Name");

         int rowNum = 1;
         for (Map.Entry<String, String> entry : userData.entrySet()) {
            //create the row data
            HSSFRow row = sheet.createRow(rowNum++);
            row.createCell(0).setCellValue(entry.getKey());
            row.createCell(1).setCellValue(entry.getValue());
         }   
   }
}

TestWeb-servlet.xml

<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.tutorialspoint.ExcelController" />

   <bean class="org.springframework.web.servlet.view.XmlViewResolver">
      <property name="location">
         <value>/WEB-INF/views.xml</value>
      </property>
   </bean>
</beans>

views.xml

<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.tutorialspoint.UserExcelView"></bean>
</beans>

在这里我们创建了一个ExcelController和ExcelView。Apache POI库处理Microsoft Office文件格式,并将数据转换为Excel文档。

完成创建源文件和配置文件后,导出应用程序。右键单击应用程序并使用Export > WAR File选项,并将您的TestWeb.war文件保存在Tomcat的webapps文件夹中。

现在启动您的Tomcat服务器,并确保您可以使用标准浏览器从webapps文件夹访问其他网页。现在尝试URL http://localhost:8080/TestWeb/excel,您应该看到以下结果。

技术分享

Maven示例:

https://github.com/easonjim/5_java_example/tree/master/springmvc/tutorialspoint/test30

Spring MVC-集成(Integration)-生成Excel示例(转载实践)

标签:usermod   response   div   font   数据   xmlns   get   www.   窗体   

原文地址:http://www.cnblogs.com/EasonJim/p/7500418.html

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