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 {
@Bean
@LoadBalanced
public RestTemplate restTemplate(ClientHttpRequestFactory factory) {
return new RestTemplate(factory);
}
@Bean
public ClientHttpRequestFactory simpleClientHttpRequestFactory() {
SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory();
factory.setReadTimeout(5000);
factory.setConnectTimeout(5000);
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 {
String url = "http://oscoreserver/test/test1";
Map<String, Object> parameters = new HashMap<>(4);
parameters.put("grant_type", "client_credential");
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
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);
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 {
}
<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
Map<String, Object> parameters = new HashMap<>(4);
parameters.put("tagid", "6666");
String result1 = restTemplate.getForObject(url, String.class, paramMap);
System.out.println("result1====================" + result1);
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)
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){
}