Spring Boot 2.x: 定时给对象发送天气

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使用Java写一个定时给对象发送天气的功能

雪中行人

前言

不知不觉，又到了雨季，你对象是不是经常忘记带伞呢，这个时候写一个自动定时发送邮件的程序，提醒她带伞，会不会对你崇拜有加呢，当然，如果你对象是一位攻城狮，当我没讲~

技术栈

Spring Boot 2.3.1
Jdk 1.8
Maven

快速创建实例

前往 https://start.spring.io/ 如下所示

点击GENERATE生产一个zip解压导入idea即可

pom.xml 文件

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.1.RELEASE</version>
<relativePath/>
</parent>
<groupId>com.github.ekko</groupId>
<artifactId>springboot-email</artifactId>
<version>1.0.0</version>
<name>springboot-email</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<dependency>
<groupId>cn.hutool</groupId>
<artifactId>hutool-all</artifactId>
<version>4.6.1</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.70</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.12</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<!--阿里云主仓库，代理了maven central和jcenter仓库-->
<repository>
<id>aliyun</id>
<name>aliyun</name>
<url>https://maven.aliyun.com/repository/public</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<!--阿里云代理Spring 官方仓库-->
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://maven.aliyun.com/repository/spring</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<!--阿里云代理Spring 插件仓库-->
<pluginRepository>
<id>spring-plugin</id>
<name>spring-plugin</name>
<url>https://maven.aliyun.com/repository/spring-plugin</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</project>

新建接收天气api的实体

Weather.java

package com.github.ekko.springtools.model;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.util.List;
@Data
@NoArgsConstructor
public class Weather { 

private String day;
private String date;
private String week;
//天气情况
private String wea;
private String weaImg;
private String air;
private String humidity;
// 空气质量 优
private String airLevel;
// 空气质量描述：空气很好，可以外出活动，呼吸新鲜空气，拥抱大自然
private String airTips;
private String tem1;
private String tem2;
private String tem;
private List<Whours> hours;
}

Whours.java

package com.github.ekko.springtools.model;
import lombok.Data;
import lombok.NoArgsConstructor;
@Data
@NoArgsConstructor
public class Whours { 

// 14日20时
private String day;
//中雨
private String wea;
//28℃ 实时温度
private String tem;
//无持续风向
private String win;
// 风速 3-4级
private String winSpeed;
}

天气接口

用的是https://www.tianqiapi.com/index
也没给我推广费，也作为我白嫖它这么久的回报吧

封装的天气api简单演示

获取天气api与发送邮件的逻辑

新建EmailService.java接口

package com.github.ekko.springtools.service;
import com.github.ekko.springtools.model.Weather;
import java.util.List;
public interface EmailService { 

boolean sendSimpleMessage();
List<Weather> getWeather();
}

实现EmailService接口

package com.github.ekko.springtools.service.impl;
import cn.hutool.http.HttpRequest;
import cn.hutool.http.HttpUtil;
import com.alibaba.fastjson.JSON;
import com.github.ekko.springtools.model.Weather;
import com.github.ekko.springtools.service.EmailService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;
import javax.mail.internet.MimeMessage;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
@Service
public class EmailServiceImpl implements EmailService { 

private final static String FROM_MAIL = "你的发送邮箱，和配置文件中相同";
private final static String TO_MAIL = "接收人邮箱";
private final static String APPID = "你申请的天气api的appid，自行替换";
private final static String APPSECRET = "你申请的天气api的APPSECRET，自行替换";
public JavaMailSender emailSender;
@Autowired
public void setEmailSender(JavaMailSender emailSender) { 

this.emailSender = emailSender;
}
@Override
public boolean sendSimpleMessage() { 

try { 

MimeMessage message = emailSender.createMimeMessage();
MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(message, true);
mimeMessageHelper.setTo(TO_MAIL);
mimeMessageHelper.setFrom(FROM_MAIL);
mimeMessageHelper.setSubject("今日份天气到了~~");
mimeMessageHelper.setText(buildHtml(getWeather().get(0)), true);
emailSender.send(message);
} catch (Exception e) { 

e.printStackTrace();
return false;
}
return true;
}
public List<Weather> getWeather() { 

HttpRequest httpRequest = HttpUtil.createGet("https://www.tianqiapi.com/api?version=v1&" + "appid=" + APPID + "&appsecret=" + APPSECRET + "&cityid=101020100");
String res = httpRequest.execute().body();
Object data = JSON.parseObject(res).get("data");
return JSON.parseArray(JSON.toJSONString(data), Weather.class);
}
private String buildHtml(Weather weather) { 

StringBuffer html = new StringBuffer("");
html.append("<!DOCTYPE html>\n" +
"<html>\n" +
"<head>\n" +
"<meta charset=\"utf-8\">\n" +
"<title>文档标题</title>\n" +
"</head><body>");
if (weather.getWea().contains("雨")) { 

html.append("<h1>今日有雨，狗子请带伞！</h1>");
}
html.append("<hr/><h3>今日天气如下</h3><table><tr><th>时间</th><th>天气</th><th>温度</th></tr>");
Optional.ofNullable(weather.getHours())
.orElse(new ArrayList<>())
.forEach(whours -> { 

html.append("<tr><td>")
.append(whours.getDay())
.append("</td><td>")
.append(whours.getWea())
.append("</td><td>")
.append(whours.getTem())
.append("</td></tr>");
});
html.append("</table></body>" +
"</html>");
return html.toString();
}
}

代码中的APPID与APPSECRET

设置发送账号信息

这里以腾讯邮箱为例子，先获取发送邮件的授权码

查询其邮箱的SMTP地址，链接 ,可以看到

使用SSL的通用配置如下：
接收邮件服务器：pop.qq.com，使用SSL，端口号995
发送邮件服务器：smtp.qq.com，使用SSL，端口号465或587
账户名：您的QQ邮箱账户名（如果您是VIP帐号或Foxmail帐号，账户名需要填写完整的邮件地址）
密码：您的QQ邮箱密码
电子邮件地址：您的QQ邮箱的完整邮件地址

配置appliction.properties

server.port=9090
server.servlet.context-path=/mail
spring.mail.host=smtp.qq.com
spring.mail.port=465
spring.mail.username=你的邮箱地址
spring.mail.password=刚刚获取的授权码
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.ssl.enable=true
spring.mail.properties.mail.smtp.starttls.enable=true

控制层

声明 @EnableScheduling定时任务
给指定方法设置时间表达式@Scheduled(cron = "0 0 8 * * ? ")

package com.github.ekko.springtools.controller;
import com.github.ekko.springtools.model.Weather;
import com.github.ekko.springtools.service.EmailService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
@RestController
@EnableScheduling
public class MailController { 

private EmailService emailService;
@Autowired
public void setEmailService(EmailService emailService) { 

this.emailService = emailService;
}
@GetMapping("/send")
@Scheduled(cron = "0 0 23 * * ? ")
public boolean sendEmail() { 

return emailService.sendSimpleMessage();
}
@GetMapping("get-weather")
public List<Weather> getWeather() { 

return emailService.getWeather();
}
}

启动类

直接启动SpringbootEmailApplication即可

package com.github.ekko.springtools;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SpringbootEmailApplication { 

public static void main(String[] args) { 

SpringApplication.run(SpringbootEmailApplication.class, args);
}
}

效果

有点丑，将就用，自行美化

源码地址

https://github.com/Gleans/SpringBootLearn/tree/master/springboot-email

发布者：全栈程序员-用户IM，转载请注明出处：https://javaforall.cn/157637.html原文链接：https://javaforall.cn

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Spring Boot 2.x: 定时给对象发送天气

使用Java写一个定时给对象发送天气的功能

前言

技术栈

快速创建实例

pom.xml 文件

新建接收天气api的实体

天气接口

封装的天气api简单演示

获取天气api与发送邮件的逻辑

设置发送账号信息

配置appliction.properties

控制层

启动类

效果

源码地址

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