Spring RestTemplate中exchange示例大全

POST请求

String reqJsonStr = "{\"code\":\"testCode\", \"group\":\"testGroup\",\"content\":\"testContent\", \"order\":1}";
HttpHeaders headers = new HttpHeaders(); headers.setContentType(MediaType.APPLICATION_JSON);
HttpEntity<String> entity = new HttpEntity<String>(reqJsonStr,headers);
ResponseEntity<Map> resp = restTemplate.exchange(DIC_DATA_URL, HttpMethod.POST, entity, Map.class);

PUT请求

 
String reqJsonStr = "{\"id\":888,\"code\":\"showInfo",\"content\":\"Info", \"order\":9}";
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_JSON);
HttpEntity<String> entity = new HttpEntity<String>(reqJsonStr,headers);
ResponseEntity<Map> resp = restTemplate.exchange(DIC_DATA_URL, HttpMethod.PUT, entity, Map.class);

DELETE请求

ResponseEntity<Map> resp = restTemplate.exchange(DIC_DATA_URL + "?id={id}", HttpMethod.DELETE, null, Map.class, 888);

GET请求

ResponseEntity<String> results = restTemplate.exchange(url,HttpMethod.GET, null, String.class, params);
参数说明:
   url:请求地址；
   method:请求类型(如：POST,PUT,DELETE,GET)；
   requestEntity:请求实体，封装请求头，请求内容
   responseType:响应类型，根据服务接口的返回类型决定
   uriVariables:url中参数变量值