SpringMVC自定义视图 Excel视图和PDF视图（excel部分自己看过，pdf没接触过 ）

一、自定义视图-Excel视图

1、Maven依赖 引入POI

<dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi</artifactId>
            <version>3.12</version>
        </dependency>

2、自定义视图解析器（继承AbstractExcelView重写buildExcelDocument方法）

import java.io.OutputStream;
import java.util.List;
import java.util.Map;

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

import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFDataFormat;
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;

import com.cn21.calendar.spider.test.User;

public class ViewExcel extends AbstractExcelView {

    @SuppressWarnings("unchecked")
    @Override
    protected void buildExcelDocument(Map<String, Object> model, HSSFWorkbook workbook, HttpServletRequest request,
            HttpServletResponse response) throws Exception {
        
        String fileName = "用户列表excel.xls";  
        response.setCharacterEncoding("UTF-8");  
        response.setContentType("application/ms-excel");  
        response.setHeader("Content-Disposition", "inline; filename="+new String(fileName.getBytes(),"iso8859-1"));  
        OutputStream outputStream = response.getOutputStream();
        
        List<User> userList = (List<User>) model.get("userList");
        // 产生Excel表头
        HSSFSheet sheet = workbook.createSheet("基本信息");
        HSSFRow header = sheet.createRow(0);
        // 产生标题列
        header.createCell(0).setCellValue("ID");
        header.createCell(1).setCellValue("名字");
        header.createCell(2).setCellValue("邮箱");
        header.createCell(3).setCellValue("密码");
        HSSFCellStyle cellStyle = workbook.createCellStyle();
        cellStyle.setDataFormat(HSSFDataFormat.getBuiltinFormat("mm/dd/yyyy"));
        int rowNumber = 1;
        for (User user : userList) {
            HSSFRow row = sheet.createRow(rowNumber++);
            // 产生标题列
            row.createCell(0).setCellValue(user.getId());
            row.createCell(1).setCellValue(user.getName());
            row.createCell(2).setCellValue(user.getEmail());
            row.createCell(3).setCellValue(user.getPassword());
        }
        workbook.write(outputStream);
        outputStream.flush();
        outputStream.close();
    }
}

3、视图映射配置dispather-servlet.xml

<!-- 通过order属性来定义视图解析器的优先级，order的值越小优先级越低 -->
    <bean class="org.springframework.web.servlet.view.BeanNameViewResolver">
        <property name="order" value="0"></property>
    </bean>

4、控制器代码示例

@RequestMapping(value = "excel")
    public ModelAndView viewExcel() {
        Map<String, Object> model = new HashMap<>();
        model.put("userList", getStudents());
        return new ModelAndView(new ViewExcel(), model);
    }
    private List<User> getStudents() {
        List<User> userList = new ArrayList<>();
        User user = new User("1", "Tome", "Tom@qq.com", "123456");
        userList.add(user);
        return userList;
    }

5、测试结果

 二、PDF视图

1、Maven依赖包引入

dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>itext-asian</artifactId>
            <version>5.1.0</version>
        </dependency>
        <dependency>  
           <groupId>com.lowagie</groupId>  
           <artifactId>itext</artifactId>  
           <version>2.1.7</version>  
        </dependency>  

2、自定义视图解析器