SpringBoot-RestTemplate实现调用第三方API的方式
RestTemplate简介
Spring RestTemplate 是 Spring 提供的用于访问 Rest 服务的客户端,RestTemplate 提供了多种便捷访问远程Http服务的方法,能够大大提高客户端的编写效率,所以很多客户端比如 android或者第三方服务商都是使用 RestTemplate 请求 restful 服务。下面通过代码讲解下SpringBoot-RestTemplate实现调用第三方API的方法,内容如下所示:
1. RestTemplate的方式来调用别人的API,将数据转化为json 格式,引入了fastjson
<dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.28</version> </dependency>
2. 编写RestTemlateConfig,配置好相关信息
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 RestTempl开发者_JAVA学习ate restTemplate(ClientHttpRequestFactory factory){ return new RestTemplate(factory); } @Bean public ClientHttpRequestFactory simpleCphplientHttpRequestFactory(){ SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory(); factory.setConnectTimeout(15000); factory.setReadTimeout(5000); return factory; } }
3.编写controller,调用第三方的API,浏览器模拟get请求,postman模拟post请求
import com.alibaba.fastjson.JSONObject; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.http.*; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PostMapping; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.client.RestTemplate; import Java.util.Map; @Re编程stController public class SpringRestTemplateController { @Autowired private RestTemplate restTemplate; /***********HTTP GET method*************/ @GetMapping("/testGetApi") public String getJson(){ String url="http://localhost:8089/o2o/getshopbyid?shopId=19"; //String json =restTemplate.getForObject(url,Object.class); ResponseEntity<String> results = restpythonTemplate.exchange(url, HttpMethoandroidd.GET, null, String.class); String json = results.getBody(); return json; } /**********HTTP POST method**************/ @PostMapping(value = "/testPost") public Object postJson(@RequestBody JSONObject param) { System.out.println(param.toJSONString()); param.put("action", "post"); param.put("username", "tester"); param.put("pwd", "123456748"); return param; } @PostMapping(value = "/testPostApi") public Object testPost() { String url = "http://localhost:8081/girl/testPost"; JSONObject postData = new JSONObject(); postData.put("descp", "reque编程st for post"); JSONObject json = restTemplate.postForEntity(url, postData, JSONObject.class).getBody(); return json; } }
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