spring boot项目实现查询天气功能

Spring boot 项目中实现查询天气功能

实现查询天气功能时：用到了json解析，整体思路是用接口回传查询结果然后解析字符串，set到实体类然后通过model绑定，thymleaf前端展示。

直接上代码

// 在pom.xml文件中 导入依赖

    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>4.5.7</version>
    </dependency>

      <dependency>
            <groupId>net.sf.json-lib</groupId>
            <artifactId>json-lib</artifactId>
            <version>2.2.3</version>
            <classifier>jdk15</classifier>
        </dependency>
        
//天气实体类
package com.select.wuliu.entity;

import java.io.Serializable;
import java.util.List;

public class WeatherData implements Serializable{

    /**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	/** 昨日天气情况 .*/
    private Yesterday yesterday;

    /** 未来七日预测 .*/
    private List<Forecast> forecast;

    /** 城市 .*/
    private String city;

    /** 空气指数 .*/
    private String aqi;

    /** 提示 .*/
    private String ganmao;

    /** 温度 .*/
    private String wendu;

	public Yesterday getYesterday() {
		return yesterday;
	}

	public void setYesterday(Yesterday yesterday) {
		this.yesterday = yesterday;
	}

	public List<Forecast> getForecast() {
		return forecast;
	}

	public void setForecast(List<Forecast> forecast) {
		this.forecast = forecast;
	}

	public String getCity() {
		return city;
	}

	public void setCity(String city) {
		this.city = city;
	}

	public String getAqi() {
		return aqi;
	}

	public void setAqi(String aqi) {
		this.aqi = aqi;
	}

	public String getGanmao() {
		return ganmao;
	}

	public void setGanmao(String ganmao) {
		this.ganmao = ganmao;
	}

	public String getWendu() {
		return wendu;
	}

	public void setWendu(String wendu) {
		this.wendu = wendu;
	}

	@Override
	public String toString() {
		return "WeatherData [yesterday=" + yesterday + ", forecast=" + forecast + ", city=" + city + ", aqi=" + aqi
				+ ", ganmao=" + ganmao + ", wendu=" + wendu + "]";
	}
    
}
//昨天实体类
package com.select.wuliu.entity;

import java.io.Serializable;

public class Yesterday implements Serializable{

    /**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	/** 日期 .*/
    private String date;

    /** 最高温度 .*/
    private String high;

    /** 风向 .*/
    private String fx;

    /** 最低温度 .*/
    private String low;

    /** 风力 .*/
    private String fl;

    /** 天气情况 .*/
    private String type;

	public String getDate() {
		return date;
	}

	public void setDate(String date) {
		this.date = date;
	}

	public String getHigh() {
		return high;
	}

	public void setHigh(String high) {
		this.high = high;
	}

	public String getFx() {
		return fx;
	}

	public void setFx(String fx) {
		this.fx = fx;
	}

	public String getLow() {
		return low;
	}

	public void setLow(String low) {
		this.low = low;
	}

	public String getFl() {
		return fl;
	}

	public void setFl(String fl) {
		this.fl = fl;
	}

	public String getType() {
		return type;
	}

	public void setType(String type) {
		this.type = type;
	}

	@Override
	public String toString() {
		return "Yesterday [date=" + date + ", high=" + high + ", fx=" + fx + ", low=" + low + ", fl=" + fl + ", type="
				+ type + "]";
	}
    
}
//预报实体类
package com.select.wuliu.entity;

import java.io.Serializable;

public class Forecast implements Serializable {

    /**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	/**　日期 .*/
    private String date;

    /**　最高温度　．*/
    private String high;

    /** 风力 .*/
    private String fengli;

    /**　最低温度 .*/
    private String low;

    /** 风向 .*/
    private String fengxiang;

    /** 天气情况 .*/
    private String type;

	public String getDate() {
		return date;
	}

	public void setDate(String date) {
		this.date = date;
	}

	public String getHigh() {
		return high;
	}

	public void setHigh(String high) {
		this.high = high;
	}

	public String getFengli() {
		return fengli;
	}

	public void setFengli(String fengli) {
		this.fengli = fengli;
	}

	public String getLow() {
		return low;
	}

	public void setLow(String low) {
		this.low = low;
	}

	public String getFengxiang() {
		return fengxiang;
	}

	public void setFengxiang(String fengxiang) {
		this.fengxiang = fengxiang;
	}

	public String getType() {
		return type;
	}

	public void setType(String type) {
		this.type = type;
	}

	@Override
	public String toString() {
		return "Forecast [date=" + date + ", high=" + high + ", fengli=" + fengli + ", low=" + low + ", fengxiang="
				+ fengxiang + ", type=" + type + "]";
	}

}






## 配置config
package com.select.wuliu.shiro;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.web.client.RestTemplate;
import java.nio.charset.StandardCharsets;


@Configuration
public class WeatherConfig {
    @Bean
    //设置字符集同时保证回传的字符不出现乱码
    public RestTemplate restTemplate(){
        RestTemplate restTemplate = new RestTemplate(new HttpComponentsClientHttpRequestFactory());
        restTemplate.getMessageConverters().set(1, new StringHttpMessageConverter(StandardCharsets.UTF_8));
        return restTemplate;
    }
}
//controller 控制器
package com.select.wuliu.controller;
import java.util.ArrayList;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import com.select.wuliu.controller.exeception.warnException;
import com.select.wuliu.entity.Forecast;
import com.select.wuliu.entity.WeatherData;
import com.select.wuliu.entity.Yesterday;
import com.select.wuliu.service.RedisService;
import com.select.wuliu.util.ResponseResult;

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;

@Controller
/***
 * 天气
 * @author Admin
 *
 */
public class QueryWeather extends BaseController {
	@Autowired
	RestTemplate restTemplate;
	@GetMapping("/charts-7")
	public String charts7(String city,Model model){
		String apiURL = "http://wthrcdn.etouch.cn/weather_mini?city=" + city;
		ResponseEntity<String> responseEntity = restTemplate.getForEntity(apiURL, String.class);
		//获得所有回传的消息
		String jsonsting=responseEntity.getBody();
		WeatherData wed=new WeatherData();
		JSONObject str =JSONObject.fromObject(jsonsting);
	//	第一步解析
		String status="";
		if(str.has("status")){
		status=	str.get("status").toString();
		//如果输入的城市不对回传的状态码不同
		}
		if(status.equals("1000")){
		
		if(str.has("data")){
			//获取正确的数据
			JSONObject str1 =JSONObject.fromObject(str.get("data"));
			if(str1.has("yesterday")){
				//获取昨天数据
				JSONObject yy =JSONObject.fromObject(str1.get("yesterday"));
				//set到昨天实体类
				
				Yesterday y=new Yesterday();
				y.setDate(yy.getString("date"));
				y.setFl(yy.getString("fl"));
				y.setFx(yy.getString("fx"));
				y.setHigh(yy.getString("high"));
				y.setLow(yy.getString("low"));
				y.setType(yy.getString("type"));
				
				wed.setYesterday(y);
			}
			//预报
			List<Forecast> fc=new ArrayList<Forecast>();
			if(str1.has("forecast")){
				//System.err.println(str1.get("forecast"));  
				JSONArray tr=str1.getJSONArray("forecast");
				for (int i = 0; i < tr.size(); i++) {
					JSONObject yy1=JSONObject.fromObject(tr.get(i)); 
					Forecast f=new Forecast();
					f.setDate(yy1.getString("date"));
					f.setFengli(yy1.getString("fengli"));
					f.setFengxiang(yy1.getString("fengxiang"));
					f.setHigh(yy1.getString("high"));
					f.setLow(yy1.getString("low"));
					f.setType(yy1.getString("type"));
				//	System.err.println(f+"f"); 
					fc.add(f);
				}
				wed.setForecast(fc);
			}
			//感冒指数
			if(str1.has("ganmao")){
				//System.err.println(str1.get("ganmao"));  
				wed.setGanmao(str1.get("ganmao").toString());
			}
			//城市
			if(str1.has("city")){
				//System.err.println(str1.get("city"));  
				wed.setCity(str1.get("city").toString());
			}
			//温度
			if(str1.has("wendu")){
			//	System.err.println(str1.get("wendu")); 
				wed.setWendu(str1.get("wendu").toString());
			}
			//System.err.println(wed+"wed");
			model.addAttribute("WeatherData", wed);
		}
		
		
		}else{
			throw new warnException("请输入正确的城市名称！");
		}
		
		return "charts-7";
	}

}
//前端thymleaf
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<meta name="renderer" content="webkit|ie-comp|ie-stand">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no" />
<meta http-equiv="Cache-Control" content="no-siteapp" />
<!--[if lt IE 9]>
<script type="text/javascript" src="lib/html5shiv.js"></script>
<script type="text/javascript" src="lib/respond.min.js"></script>
<![endif]-->
<link rel="stylesheet" type="text/css" href="/h-ui/css/H-ui.min.css" />
<link rel="stylesheet" type="text/css" href="/h-ui.admin/css/H-ui.admin.css" />
<link rel="stylesheet" type="text/css" href="lib/Hui-iconfont/1.0.8/iconfont.css" />
<link rel="stylesheet" type="text/css" href="/h-ui.admin/skin/default/skin.css" id="skin" />
<link rel="stylesheet" type="text/css" href="/h-ui.admin/css/style.css" />
<!--[if IE 6]>
<script type="text/javascript" src="lib/DD_belatedPNG_0.0.8a-min.js" ></script>
<script>DD_belatedPNG.fix('*');</script>
<![endif]-->
<title>天气预报</title>
</head>
<body>
<nav class="breadcrumb"><i class="Hui-iconfont">&#xe67f;</i> 首页 <span class="c-gray en">&gt;</span> 
个人收藏 <span class="c-gray en">&gt;</span> 天气预报 <a class="btn btn-success radius r" style="line-height:1.6em;margin-top:3px" href="javascript:location.replace(location.href);" title="刷新" ><i class="Hui-iconfont">&#xe68f;</i></a></nav>
<div>
        <p>
            城市：<span th:text="${WeatherData.city}"></span>
            温度：<span th:text="${WeatherData.wendu}"></span>
            友情提示：<span th:text="${WeatherData.ganmao}"></span>
        </p>
        <p>
            日期：<span th:text="${WeatherData.yesterday.date}"></span>
        </p>
        <p>
            最高温度：<span th:text="${WeatherData.yesterday.high}"></span>
            最低温度：<span th:text="${WeatherData.yesterday.low}"></span>
            风向：<span th:text="${WeatherData.yesterday.fx}"></span>
            风力：<span th:text="${WeatherData.yesterday.fl}"></span>
            天气情况：<span th:text="${WeatherData.yesterday.type}"></span>
        </p>
    </div>
    <div th:each="forecast : ${WeatherData.forecast}">
        <p>
            日期：<span th:text="${forecast.date}"></span>
        </p>
        <p>
            最高温度：<span th:text="${forecast.high}"></span>
            最低温度：<span th:text="${forecast.low}"></span>
            风向：<span th:text="${forecast.fengxiang}"></span>
            风力：<span th:text="${forecast.fengli}"></span>
            天气情况：<span th:text="${forecast.type}"></span>
        </p>
    </div>





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