java定时任务：oracle导出excel后，发送excel作为附件的邮件

定时任务类：

package com.cairenhui.sec.task;

import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.Date;
import java.util.List;
import java.util.Map;

import javax.mail.internet.MimeMessage;

import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Component;

import com.cairenhui.sec.service.ObsUserHkInfoService;
import com.cairenhui.sec.util.ExcelUtil;
import com.cairenhui.sec.utils.PropertiesUtils;

/**
 * 
 * @author jinxd 2014-12-29 从数据库中导出excel，然后调用邮件发送接口，发送邮件
 */
@Component
public class HKTask {
	@Autowired
	private ObsUserHkInfoService obsUserHkInfoService;
	@Autowired
	private JavaMailSenderImpl mailSender;

	private static final Logger log = Logger.getLogger(HKTask.class);

	/**
	 * 港股通业务，通过OBS_USER_HK_INFO表，每天23:55导出excel，并发送邮件
	 */
	public void sendHKInfoEmailJob() {
		long t1 = System.currentTimeMillis();
		log.info("--------------  执行港股通定时任务 start --------------------" + t1);
		try {
			@SuppressWarnings("unchecked")
			List<Map<String, Object>> list = obsUserHkInfoService.findTheSameDay();// 查询数据
			if (list.size() > 0) {
				StringBuilder fileName = new StringBuilder();
				String name = "HKStockCount_" + (new Date()).getTime();// 表格名字
				String encoderName = "";
				try {
					encoderName = URLEncoder.encode(name, "UTF-8");
				} catch (UnsupportedEncodingException e) {
					e.printStackTrace();
				}
				fileName.append(encoderName).append(".xls");
				// 建立excel表格
				OutputStream os = new FileOutputStream("c:\\temp\\" + fileName);// linux和windows路径不一样

				String[] titleArr = new String[] { "编号", "用户ID", "姓名", "客户资金账号", "客户风险等级", "知识测评分数", "指定交易", "沪A账号", "账户资产金额", "创建时间", "完成时间", "处理意见", "处理状态(4成功，5失败)", "备注" };
				String[] codeArr = new String[] { "OUHI_ID", "USER_ID", "CLIENT_NAME", "FUND_ACCOUNT", "CORP_RISK_LEVEL", "PAPER_SCORE", "REG_FLAG", "STOCK_ACCOUNT_A", "ASSET_BALANCE_VALUE", "CREATE_TIME", "FINISH_TIME", "RESULT_COMMENT", "STATUS", "REMARK" };

				ExcelUtil.export(os, list, titleArr, codeArr, name);
				log.info("--------------  导出excel成功,建立临时文件end --------------------" + (System.currentTimeMillis() - t1) + "ms");

				String sPath = "c:\\temp\\" + fileName.toString();// linux和windows路径不一样
				String toMail = PropertiesUtils.get("mail.hk.send.to", "");// mail.properties里面配置
				String fromMail = PropertiesUtils.get("mail.send.from", "");

				// 是否需要发邮件，根据配置是否为空来判断
				if (!toMail.isEmpty()) {
					// 将excel作为附件发送，并删除本地的excel文件
					String subject = "港股通开户信息";
					String content = (new Date()).toString() + "_港股通开户信息报表";

					MimeMessage mailMessage = mailSender.createMimeMessage();
					MimeMessageHelper messageHelper = new MimeMessageHelper(mailMessage, true, "utf-8");
					messageHelper.setTo(toMail);// 接收方邮箱
					messageHelper.setFrom(fromMail);// 发送方邮箱
					messageHelper.setSubject(subject);// 设置邮件主题
					messageHelper.setText(content, true);// 设置邮件主题内容
					FileSystemResource fileR = new FileSystemResource(new File(sPath));// 读取附件
					// 这里的方法调用和插入图片是不同的。
					messageHelper.addAttachment("HKStockCount.xls", fileR); // 设置附件
					log.info("--------------  发送邮件开始  --------------");
					mailSender.send(mailMessage); // 发送邮件
					log.info("--------------  发送邮件成功,任务结束 end --------------------" + (System.currentTimeMillis() - t1) + "ms");
				} else {
					log.info("-------------- 发件邮箱或收件邮箱未配置,不发送港股通开户信息邮件  --------------------");
				}

				File file = new File(sPath);
				// 路径为文件且不为空则进行删除
				if (file.isFile() && file.exists()) {
					file.delete();
					log.info("--------------  临时文件删除成功 --------------------");
				}
			}else{
				log.info("--------------  当日没有开通港股通信息记录 --------------------");
				log.info("--------------  港股通定时任务 end ---------------------------");
			}
		} catch (Exception e) {
			log.error("sendHKInfoEmailJob异常:", e);
			e.printStackTrace();
		}
	}

}

ExcelUtil.export方法：

<pre name="code" class="java">public static void export(OutputStream os, List<Map<String, Object>> list, String[] titleArr,String[] codeArr, String name){
		try {
			//创建一个工作簿，也就是整个文档
			WritableWorkbook wbook = Workbook.createWorkbook(os);
			//设置字体
			WritableFont wfont = new WritableFont(WritableFont.ARIAL, 10,
           			WritableFont.BOLD, false, UnderlineStyle.NO_UNDERLINE,
           			Colour.BLACK);
			//定义单元格格式
           	WritableCellFormat wcf = new WritableCellFormat(wfont);
           	
			double maxSheetSize = 60000.0;
           	int sheetNum = (int) Math.ceil(list.size() / maxSheetSize);
           	for(int num = 0; num < sheetNum; num++){
           		WritableSheet wsheet = wbook.createSheet(name + "("+(num+1)+")", num);
                
               	String title=null;
               	for(int i=0; i<titleArr.length; i++){
               		title = titleArr[i];
               		wsheet.addCell(new Label(i, 0, title, wcf));
               	}
            	for(int i = num*(int)maxSheetSize ; i < (num+1)*(int)maxSheetSize && i < list.size(); i++){
               		Map<String, Object> m = list.get(i);
               		int temp = i - num*(int)maxSheetSize + 1;
               		for(int j=0; j<codeArr.length; j++){
               			String value = String.valueOf(m.get(codeArr[j])==null?"":m.get(codeArr[j]));
               			wsheet.addCell(new Label(j, temp, value));
               		}
               	}
           	}
           	
           	wbook.write();
           	wbook.close();
           	os.close();
		}catch(Exception e){
			log.info("exception heppended in "+ExcelUtil.class+" cause: ", e);
		}
	}

quartz.xml：

<!-- 港股通：定义要使用哪个bean中的哪个方法作为要定时执行的任务 -->
	<bean id="HKInfoSendJob" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean"> 
		<property name="targetObject"> 
	    	<ref bean="HKTask" /> 
	    </property> 
	    <property name="targetMethod"> 
	    	<value>sendHKInfoEmailJob</value>
	    </property> 
	</bean>
	
	<!-- 港股通：触发器的bean的设置 -->
	<bean id="HKInfoSendJobTrigger" class="org.springframework.scheduling.quartz.CronTriggerBean">
		<property name="jobDetail">
			<ref bean="HKInfoSendJob" />
		</property>
		<property name="cronExpression">
			<value>0 46 09 * * ?</value>
		</property>
	</bean>

    <!-- 任务调度工厂 -->
	<!-- 启动定时器，triggers属性接受【一组】触发器 -->
	<bean id="schedulerFactory" autowire="no" class="org.springframework.scheduling.quartz.SchedulerFactoryBean"> 
		<property name="triggers"> 
			<list> 
				<!-- <ref local="channelFinishJobTrigger"/> -->
				<ref local="pollingBusinessJobTrigger"/>
				<ref local="HKInfoSendJobTrigger"/>
			</list> 
		</property> 
	</bean>

配置文件：

####邮件系统参数设置开始

#邮件服务器地址
mail.server.host=smtp.163.com

#邮件服务器端口
mail.server.port=25

#邮件服务器登录用户名、密码
[email protected]
mail.server.password=05702611054

#开户验证身份 true/false
mail.server.auth=true

#邮件发送地址
[email protected]

#邮件接收地址
[email protected]

#邮件内容：邮箱绑定
mail.content.bind=mail.content.bind

####邮件系统参数结束