SpringBoot-RestTemplate如何实现调用第三方API_Java教程

SpringBoot-RestTemplate如何实现调用第三方API

2021-11-24 13:25Lukey Alvin Java教程

这篇文章主要介绍了SpringBoot-RestTemplate实现调用第三方API的操作，具有很好的参考价值，希望对大家有所帮助。如有错误或未考虑完全的地方，望不吝赐教

1.在build.grdle加入依赖

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									implementation('org.springframework.boot:spring-boot-starter-web')

2.在config包下创建一个RestTemlateConfig

配置好相关信息

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									package com.qiubao.school.api.config; 

									import org.springframework.context.annotation.Bean;

									import org.springframework.context.annotation.Configuration;

									import org.springframework.http.client.ClientHttpRequestFactory;

									import org.springframework.http.client.SimpleClientHttpRequestFactory;

									import org.springframework.web.client.RestTemplate;

									@Configuration

									public class RestTemplateConfig {

									    @Bean

									    public RestTemplate restTemplate(ClientHttpRequestFactory factory){

									        return new RestTemplate(factory);

									    } 

									    @Bean

									    public ClientHttpRequestFactory simpleClientHttpRequestFactory(){

									        SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory();

									        factory.setConnectTimeout(15000);

									        factory.setReadTimeout(5000);

									        return factory;

									    }

									}

3.在model包下创建一个新的包

“JuHe”，然后包里创建一个新的类：JuheResult 【Art+insert】选择CsonFormat

SpringBoot-RestTemplate如何实现调用第三方API

4.Constans类下将调用接口的AppKey值宏定义

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									package com.qiubao.school.api.common; 

									public interface Constants {   

									    String JUHE_KEY         = "e80611926aa6321048bde9ea73d11190";

									}

5.在controller包下创建一个

新的类SpringRestTemplateController（调用第三方的API，浏览器模拟get请求，postman模拟post请求）

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									package com.qiubao.school.api.controller; 

									import com.alibaba.fastjson.JSONObject;

									import com.qiubao.school.api.common.Constants;

									import com.qiubao.school.api.model.Article;

									import com.qiubao.school.api.model.juhe.JuheResult;

									import org.apache.commons.lang3.StringUtils;

									import org.springframework.beans.factory.annotation.Autowired;

									import org.springframework.web.bind.annotation.*;

									import org.springframework.web.client.RestTemplate; 

									import java.util.ArrayList;

									import java.util.List;

									@RestController

									@RequestMapping("news")

									public class SpringRestTemplateController {

									    @Autowired

									    private RestTemplate restTemplate;

									    /***********HTTP GET method*************/

									    @GetMapping("/testGetApi")

									    public JuheResult getJson(

									            @RequestParam(value = "type", required = false) String type

									    ){

									        type = StringUtils.isEmpty(type)?"top":type;//定义为可以为空

									                                                    // 将调用接口的Key值宏定义一个名字（Constants类下）

									        String url="http://v.juhe.cn/toutiao/index?type="+type+"&key=" + Constants.JUHE_KEY;

									                                                    //将Jason格式转换为对象（增强可读性、易于后期数据的更改和增删）

									        JuheResult result = restTemplate.getForObject(url, JuheResult.class);

									        return result;

									    }

									//将调用的Api的Jason数据格式修改为需要的Jason数据格式[用到JuheResult方法]

									    private List<Article> convertJuhe2Article(JuheResult result) {

									        List<Article> articles = new ArrayList<>();

									        for (JuheResult.ResultBean.DataBean dataBean:

									             result.getResult().getData()) {

									            Article article = new Article(); 

									            article.setUniquekey(dataBean.getUniquekey());

									            article.setTitle(dataBean.getTitle());

									            article.setAuthor_name(dataBean.getAuthor_name());

									            article.setCreateDate(dataBean.getDate());

									            article.setContent(dataBean.getUrl());

									            article.setThumbnail_pic_s(dataBean.getThumbnail_pic_s());

									            article.setThumbnail_pic_s02(dataBean.getThumbnail_pic_s02());

									            article.setThumbnail_pic_s03(dataBean.getThumbnail_pic_s03());

									            article.setCategory(dataBean.getCategory());

									            article.getCommentCount();

									            article.getLikeCount();

									            articles.add(article);

									        }

									        return articles;

									    }    

									}