springboot 调用第三方天气接口

1. 查询天气的api：https://www.sojson.com/open/api/weather/json.shtml?city="北京"
2. 直接在city=后面加上中文城市，就会返回json数据。
3. 基于maven创建一个springboot应用，pom信息如下，注意添加了httpclien

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

创建配置类

package com.thundersdata.backend.basic.utils;

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;

/**
 * @author w
 * @Classname WeatherConfig
 * @Description TODO
 * @Date 2020/2/18 18:51
 */
@Configuration
public class WeatherConfig {

    @Bean
    public RestTemplate restTemplate(){
        RestTemplate restTemplate = new RestTemplate(new HttpComponentsClientHttpRequestFactory());
        restTemplate.getMessageConverters().set(1, new StringHttpMessageConverter(StandardCharsets.UTF_8));
        return restTemplate;
    }
}
           

Controller接口

package com.thundersdata.backend.basic.controller;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

/**
 * @author w
 * @Classname QueryWeatherController
 * @Description TODO
 * @Date 2020/2/18 18:46
 */
@Api(tags = "天气查询接口")
@RestController
@RequestMapping("QueryWeather")
public class QueryWeatherController {

    @Autowired
    private RestTemplate restTemplate;

    @ApiOperation(value = "天气查询接口", notes = "返回最近7天天气预报")
    @GetMapping
    public String QueryWeather() {
        String apiURL = "http://wthrcdn.etouch.cn/weather_mini?city=" + "北京";
        ResponseEntity<String> responseEntity = restTemplate.getForEntity(apiURL, String.class);

        if (200 == responseEntity.getStatusCodeValue()) {
            return responseEntity.getBody();
        } else {
            return "error with code : " + responseEntity.getStatusCodeValue();
        }
    }
}
           

运行程序调用一下就可以返回最近7天的天气预报了