2025年RestTemplate post请求返回状态码415「建议收藏」

编程汇总 • 2025-02-27 12:06 • 阅读 21

背景：

跨模块通过post请求调用指定接口，返回415

415状态码解释：

Unsupported Media Type

对于当前请求的方法和所请求的资源，请求中提交的实体并不是服务器中所支持的格式，因此请求被拒绝

错误日志：

org.springframework.web.client.HttpClientErrorException: 415 null
atorg.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:86)
at org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:708)

功能错误代码和正常代码比对

异常请求返回415:

RestTemplate restTemplate = new RestTemplate();

String url = "http://172.16.17.82/portal/zcm-cmdb/remote/exec";

 String cmd = "mkdir -p /tmp/lushuan/test5";

// 1、异常请求返回 415

 HttpHeaders headers = new HttpHeaders();

 MultiValueMap map= new LinkedMultiValueMap();

 map.add("host", "172.16.24.220");

 map.add("user", "root");

 map.add("cmd", cmd);

HttpEntity> request = new HttpEntity>(map, headers);

Object data = restTemplate.postForObject(url,request,Object.class);

LOGGER.info("TestRestTemplate testInstallCollectdByRemote data = {}", data);

正常代码演示1:

 RestTemplate restTemplate = new RestTemplate();

String url = "http://172.16.17.82/portal/zcm-cmdb/remote/exec";

String cmd = "mkdir -p /tmp/lushuan/test6";

Map map = new HashMap<>();

map.put("host","172.16.24.220");

map.put("user","root");

map.put("cmd",cmd);

HttpHeaders headers = new HttpHeaders();

headers.setContentType(MediaType.APPLICATION_JSON);

HttpEntity> request = new HttpEntity<>(map, headers);

JSONObject data = restTemplate.postForObject(url,request, JSONObject.class);

LOGGER.info("TestRestTemplate testInstallCollectdByRemote data = {}", data);

正常代码演示2:

RestTemplate restTemplate = new RestTemplate();

String url = "http://172.16.17.82/portal/zcm-cmdb/remote/exec";

String cmd = "mkdir -p /tmp/lushuan/test7";

Map map = new HashMap<>();

map.put("host","172.16.24.220");

map.put("user","root");

map.put("cmd",cmd);

// ParameterizedTypeReference 该类的目的是启用捕获和传递泛型

ParameterizedTypeReference typeRef = new ParameterizedTypeReference() {

};

JSONObject createDbJsonObject = JSONObject.fromObject(map);

HttpEntity entityPost = new HttpEntity(createDbJsonObject);

ResponseEntity createDbResponse = restTemplate.exchange(url, HttpMethod.POST, entityPost,typeRef);

HttpStatus statusCode = createDbResponse.getStatusCode();

LOGGER.info("TestRestTemplate testInstallCollectdByRemote createDbResponse = {}", createDbResponse);

LOGGER.info("TestRestTemplate testInstallCollectdByRemote statusCode = {}", statusCode);

两段代码的实现方式都可以，推荐第二种，可以获取返回的状态码，是否跨域等信息。

2025年RestTemplate post请求返回状态码415「建议收藏」

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