spring boot RestTemplate 发送 get 请求使用误区

闲话少说，代码说话

RestTemplate 实例

RestTemplate restTemplate = new RestTemplate();

@Configuration
public class RestConfiguration {

@Bean
@ConditionalOnMissingBean({RestOperations.class, RestTemplate.class})
public RestOperations restOperations() {
SimpleClientHttpRequestFactory requestFactory = new SimpleClientHttpRequestFactory();
requestFactory.setReadTimeout(5000);
requestFactory.setConnectTimeout(5000);

RestTemplate restTemplate = new RestTemplate(requestFactory);

// 使用 utf-8 编码集的 conver 替换默认的 conver（默认的 string conver 的编码集为 "ISO-8859-1"）
List<HttpMessageConverter<?>> messageConverters = restTemplate.getMessageConverters();
Iterator<HttpMessageConverter<?>> iterator = messageConverters.iterator();
while (iterator.hasNext()) {
HttpMessageConverter<?> converter = iterator.next();
if (converter instanceof StringHttpMessageConverter) {
iterator.remove();
}
}
messageConverters.add(new StringHttpMessageConverter(Charset.forName("UTF-8")));

return restTemplate;
}

}

请求地址

http://localhost:8080/test/sendSms?phone=手机号&msg=短信内容

错误使用

@Autowired
private RestOperations restOperations;

public void test() throws Exception{
String url = "http://localhost:8080/test/sendSms";

Map<String, Object> uriVariables = new HashMap<String, Object>();
uriVariables.put("phone", "151xxxxxxxx");
uriVariables.put("msg", "测试短信内容");

String result = restOperations.getForObject(url, String.class, uriVariables);
}

正确使用

@Autowired
private RestOperations restOperations;

public void test() throws Exception{
String url = "http://localhost:8080/test/sendSms?phone={phone}&msg={phone}";

Map<String, Object> uriVariables = new HashMap<String, Object>();
uriVariables.put("phone", "151xxxxxxxx");
uriVariables.put("msg", "测试短信内容");

String result = restOperations.getForObject(url, String.class, uriVariables);
}

@Autowired
private RestOperations restOperations;

public void test() throws Exception{
String url = "http://localhost:8080/test/sendSms?phone={phone}&msg={phone}";

String result = restOperations.getForObject(url, String.class,  "151xxxxxxxx", "测试短信内容");
}