ssm框架细枝末节之导出

来源：互联网发布：excel数据服务器编辑：程序博客网时间：2024/06/02 01:49

页面代码片：

</c:forEach>
</table>
<input type="button" value="批量导出" id="deleteAll"/>
</body>

controller控制类：

//导出
@SuppressWarnings("resource")
@ResponseBody
@RequestMapping("educeUser")
public String educeUser(String ids) throws Exception {
String[] ss = ids.split(",");
BufferedWriter bufwriter=null;
//将String类型的数组转为int类型
int[] idss=new int[ss.length];
for (int i = 0; i < ss.length; i++) {
idss[i] =Integer.parseInt(ss[i]);
}

//创建File
File file = new File("D://empll/empll.txt");
//判断文件是否存在
if(!file.exists()){
file.mkdirs();
}
List<User> educeUser = service.educeUser(idss);
//创建一个文件输出流，向指定的文件输出数据
FileOutputStream stream = new FileOutputStream(file);
//将字节流装换成字符流
OutputStreamWriter writer = new OutputStreamWriter(stream);
//缓冲字符流
bufwriter = new BufferedWriter(writer);
for (User user : educeUser) {
//写入
bufwriter.write(user.getAge()+"#"+user.getId()+"#"+user.getUsername());
//换行
bufwriter.newLine();
}
bufwriter.flush();
bufwriter.close();
stream.close();
return "redirect:/user/findAll";
}

springmvc.xml配置文件：

<mvc:annotation-driven>
<mvc:message-converters register-defaults="false">



<bean id="fastJsonHttpMessageConverter" class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">

<property name="supportedMediaTypes">

<list>





<value>application/json;charset=UTF-8</value>

</list>

</property>

</bean>

</mvc:message-converters>
</mvc:annotation-driven>

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