微服务模块之间接口调用方式（RestTemplate ）

RestTemplate 是org.springframework.web.client包下面的类，可以实现Post、Get等请求

配置类，配置RestTemplate Bean

@Configuration public class RestTemplateConfig { /** * 使用LoadBlanced 可以用Eruake 中注册的服务名调用 **/ @Bean @LoadBalanced public RestTemplate restTemplate(ClientHttpRequestFactory factory) { return new RestTemplate(factory); } @Bean public ClientHttpRequestFactory simpleClientHttpRequestFactory() { SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory(); factory.setReadTimeout(5000);//单位为ms factory.setConnectTimeout(5000);//单位为ms return factory; } }

注入RestTemplate 使用RestTemplate 调用接口

Url格式：http://Eruake注册的服务名/接口地址 @RequestMapping("/test2") public void test2(){ try { // 调用的接口地址 String url = "http://oscoreserver/test/test1"; // 传的参数 Map<String, Object> parameters = new HashMap<>(4); parameters.put("grant_type", "client_credential"); // 接口返回的内容 Object object = restTemplate.postForObject(url, parameters, String.class); System.out.println(object); }catch (Exception e){ logger.info(e.getMessage()); e.printStackTrace(); } }

RestTemplate Post请求

使用postForObject请求接口 String url = "http://oscoreserver/test/test1"; Map<String, Object> parameters = new HashMap<>(4); parameters.put("tagid", "6666"); Object object = restTemplate.postForObject(url, parameters, String.class); postForObject() public <T> T postForObject(String url, @Nullable Object request, Class<T> responseType, Object... uriVariables) throws RestClientException {} public <T> T postForObject(String url, @Nullable Object request, Class<T> responseType, Map<String, ?> uriVariables) throws RestClientException {} public <T> T postForObject(URI url, @Nullable Object request, Class<T> responseType) throws RestClientException {} postForEntity() <T> ResponseEntity<T> postForEntity(String var1, @Nullable Object var2, Class<T> var3, Object... var4) throws RestClientException; <T> ResponseEntity<T> postForEntity(String var1, @Nullable Object var2, Class<T> var3, Map<String, ?> var4) throws RestClientException; <T> ResponseEntity<T> postForEntity(URI var1, @Nullable Object var2, Class<T> var3) throws RestClientException;

RestTemplate Get请求

使用getForObject请求接口 Map<String, Object> parameters = new HashMap<>(4); parameters.put("tagid", "6666"); String result1 = restTemplate.getForObject(url, String.class, paramMap); System.out.println("result1====================" + result1); getForObject() public <T> T getForObject(String url, Class<T> responseType, Object... uriVariables){} public <T> T getForObject(String url, Class<T> responseType, Map<String, ?> uriVariables) public <T> T getForObject(URI url, Class<T> responseType) getForEntity() public <T> ResponseEntity<T> getForEntity(String url, Class<T> responseType, Object... uriVariables){} public <T> ResponseEntity<T> getForEntity(String url, Class<T> responseType, Map<String, ?> uriVariables){} public <T> ResponseEntity<T> getForEntity(URI url, Class<T> responseType){}