{"id":38474,"date":"2025-05-20T16:32:48","date_gmt":"2025-05-20T08:32:48","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/38474.html"},"modified":"2025-05-20T16:32:48","modified_gmt":"2025-05-20T08:32:48","slug":"springboot%e9%a1%b9%e7%9b%ae%e9%87%8c%e9%9d%a2%e5%8f%91%e8%b5%b7http%e8%af%b7%e6%b1%82%e7%9a%84%e5%87%a0%e7%a7%8d%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/38474.html","title":{"rendered":"SpringBoot\u9879\u76ee\u91cc\u9762\u53d1\u8d77http\u8bf7\u6c42\u7684\u51e0\u79cd\u65b9\u6cd5"},"content":{"rendered":"

\u5728Spring Boot\u9879\u76ee\u4e2d\u53d1\u8d77HTTP\u8bf7\u6c42\u7684\u65b9\u6cd5<\/h2>\n

\u5728Spring Boot\u9879\u76ee\u4e2d，\u6709\u51e0\u79cd\u5e38\u7528\u7684\u65b9\u5f0f\u53ef\u4ee5\u53d1\u8d77HTTP\u8bf7\u6c42，\u4ee5\u4e0b\u662f\u4e3b\u8981\u7684\u51e0\u79cd\u65b9\u6cd5：<\/p>\n

1. \u4f7f\u7528RestTemplate (Spring 5\u4e4b\u524d\u7684\u4e3b\u6d41\u65b9\u5f0f)<\/h3>\n

\/\/ \u9700\u8981\u5148\u6ce8\u5165RestTemplate<\/span>
\n@Autowired<\/span>
\nprivate<\/span> RestTemplate<\/span> restTemplate;<\/span><\/p>\n

public<\/span> void<\/span> makeRequest<\/span>(<\/span>)<\/span> {<\/span>
\n \/\/ GET\u8bf7\u6c42<\/span>
\n ResponseEntity<\/span><<\/span>String<\/span>><\/span><\/span> response =<\/span> restTemplate.<\/span>getForEntity<\/span>(<\/span>
\n "https:\/\/api.example.com\/data"<\/span>,<\/span> String<\/span>.<\/span>class<\/span>)<\/span>;<\/span><\/p>\n

\/\/ POST\u8bf7\u6c42<\/span>
\n HttpHeaders<\/span> headers =<\/span> new<\/span> HttpHeaders<\/span>(<\/span>)<\/span>;<\/span>
\n headers.<\/span>setContentType<\/span>(<\/span>MediaType<\/span>.<\/span>APPLICATION_JSON)<\/span>;<\/span>
\n HttpEntity<\/span><<\/span>String<\/span>><\/span><\/span> request =<\/span> new<\/span> HttpEntity<\/span><<\/span>><\/span><\/span>(<\/span>"{\\\\"key\\\\":\\\\"value\\\\"}"<\/span>,<\/span> headers)<\/span>;<\/span>
\n ResponseEntity<\/span><<\/span>String<\/span>><\/span><\/span> response =<\/span> restTemplate.<\/span>postForEntity<\/span>(<\/span>
\n "https:\/\/api.example.com\/data"<\/span>,<\/span> request,<\/span> String<\/span>.<\/span>class<\/span>)<\/span>;<\/span>
\n}<\/span><\/p>\n

2. \u4f7f\u7528WebClient (Spring 5+\u63a8\u8350\u7684\u54cd\u5e94\u5f0f\u65b9\u5f0f)<\/h3>\n

\/\/ \u9700\u8981\u6dfb\u52a0spring-boot-starter-webflux\u4f9d\u8d56<\/span>
\nWebClient<\/span> webClient =<\/span> WebClient<\/span>.<\/span>create<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ GET\u8bf7\u6c42<\/span>
\nMono<\/span><<\/span>String<\/span>><\/span><\/span> response =<\/span> webClient.<\/span>get<\/span>(<\/span>)<\/span>
\n .<\/span>uri<\/span>(<\/span>"https:\/\/api.example.com\/data"<\/span>)<\/span>
\n .<\/span>retrieve<\/span>(<\/span>)<\/span>
\n .<\/span>bodyToMono<\/span>(<\/span>String<\/span>.<\/span>class<\/span>)<\/span>;<\/span><\/p>\n

\/\/ POST\u8bf7\u6c42<\/span>
\nMono<\/span><<\/span>String<\/span>><\/span><\/span> response =<\/span> webClient.<\/span>post<\/span>(<\/span>)<\/span>
\n .<\/span>uri<\/span>(<\/span>"https:\/\/api.example.com\/data"<\/span>)<\/span>
\n .<\/span>contentType<\/span>(<\/span>MediaType<\/span>.<\/span>APPLICATION_JSON)<\/span>
\n .<\/span>bodyValue<\/span>(<\/span>"{\\\\"key\\\\":\\\\"value\\\\"}"<\/span>)<\/span>
\n .<\/span>retrieve<\/span>(<\/span>)<\/span>
\n .<\/span>bodyToMono<\/span>(<\/span>String<\/span>.<\/span>class<\/span>)<\/span>;<\/span><\/p>\n

3. \u4f7f\u7528HttpClient (Java 11+\u5185\u7f6e)<\/h3>\n

HttpClient<\/span> client =<\/span> HttpClient<\/span>.<\/span>newHttpClient<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ GET\u8bf7\u6c42<\/span>
\nHttpRequest<\/span> request =<\/span> HttpRequest<\/span>.<\/span>newBuilder<\/span>(<\/span>)<\/span>
\n .<\/span>uri<\/span>(<\/span>URI.<\/span>create<\/span>(<\/span>"https:\/\/api.example.com\/data"<\/span>)<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ POST\u8bf7\u6c42<\/span>
\nHttpRequest<\/span> request =<\/span> HttpRequest<\/span>.<\/span>newBuilder<\/span>(<\/span>)<\/span>
\n .<\/span>uri<\/span>(<\/span>URI.<\/span>create<\/span>(<\/span>"https:\/\/api.example.com\/data"<\/span>)<\/span>)<\/span>
\n .<\/span>header<\/span>(<\/span>"Content-Type"<\/span>,<\/span> "application\/json"<\/span>)<\/span>
\n .<\/span>POST<\/span>(<\/span>HttpRequest.<\/span>BodyPublishers<\/span>.<\/span>ofString<\/span>(<\/span>"{\\\\"key\\\\":\\\\"value\\\\"}"<\/span>)<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u53d1\u9001\u8bf7\u6c42<\/span>
\nHttpResponse<\/span><<\/span>String<\/span>><\/span><\/span> response =<\/span> client.<\/span>send<\/span>(<\/span>request,<\/span> HttpResponse.<\/span>BodyHandlers<\/span>.<\/span>ofString<\/span>(<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

4. \u4f7f\u7528Feign Client (\u58f0\u660e\u5f0fREST\u5ba2\u6237\u7aef)<\/h3>\n

\/\/ \u9700\u8981\u6dfb\u52a0spring-cloud-starter-openfeign\u4f9d\u8d56<\/span>
\n@FeignClient<\/span>(<\/span>name =<\/span> "exampleClient"<\/span>,<\/span> url =<\/span> "https:\/\/api.example.com"<\/span>)<\/span>
\npublic<\/span> interface<\/span> ExampleClient<\/span> {<\/span>
\n @GetMapping<\/span>(<\/span>"\/data"<\/span>)<\/span>
\n String<\/span> getData<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

@PostMapping<\/span>(<\/span>"\/data"<\/span>)<\/span>
\n String<\/span> postData<\/span>(<\/span>@RequestBody<\/span> String<\/span> body)<\/span>;<\/span>
\n}<\/span><\/p>\n

\/\/ \u4f7f\u7528<\/span>
\n@Autowired<\/span>
\nprivate<\/span> ExampleClient<\/span> exampleClient;<\/span><\/p>\n

public<\/span> void<\/span> makeRequest<\/span>(<\/span>)<\/span> {<\/span>
\n String<\/span> response =<\/span> exampleClient.<\/span>getData<\/span>(<\/span>)<\/span>;<\/span>
\n}<\/span><\/p>\n

5. \u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u5982OkHttp\u6216Apache HttpClient<\/h3>\n

OkHttp\u793a\u4f8b:<\/h4>\n

OkHttpClient<\/span> client =<\/span> new<\/span> OkHttpClient<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ GET\u8bf7\u6c42<\/span>
\nRequest<\/span> request =<\/span> new<\/span> Request.<\/span>Builder<\/span>(<\/span>)<\/span>
\n .<\/span>url<\/span>(<\/span>"https:\/\/api.example.com\/data"<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ POST\u8bf7\u6c42<\/span>
\nRequestBody<\/span> body =<\/span> RequestBody<\/span>.<\/span>create<\/span>(<\/span>
\n "{\\\\"key\\\\":\\\\"value\\\\"}"<\/span>,<\/span> MediaType<\/span>.<\/span>parse<\/span>(<\/span>"application\/json"<\/span>)<\/span>)<\/span>;<\/span>
\nRequest<\/span> request =<\/span> new<\/span> Request.<\/span>Builder<\/span>(<\/span>)<\/span>
\n .<\/span>url<\/span>(<\/span>"https:\/\/api.example.com\/data"<\/span>)<\/span>
\n .<\/span>post<\/span>(<\/span>body)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u53d1\u9001\u8bf7\u6c42<\/span>
\nResponse<\/span> response =<\/span> client.<\/span>newCall<\/span>(<\/span>request)<\/span>.<\/span>execute<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

Apache HttpClient\u793a\u4f8b:<\/h4>\n

CloseableHttpClient<\/span> httpClient =<\/span> HttpClients<\/span>.<\/span>createDefault<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ GET\u8bf7\u6c42<\/span>
\nHttpGet<\/span> httpGet =<\/span> new<\/span> HttpGet<\/span>(<\/span>"https:\/\/api.example.com\/data"<\/span>)<\/span>;<\/span><\/p>\n

\/\/ POST\u8bf7\u6c42<\/span>
\nHttpPost<\/span> httpPost =<\/span> new<\/span> HttpPost<\/span>(<\/span>"https:\/\/api.example.com\/data"<\/span>)<\/span>;<\/span>
\nStringEntity<\/span> entity =<\/span> new<\/span> StringEntity<\/span>(<\/span>"{\\\\"key\\\\":\\\\"value\\\\"}"<\/span>)<\/span>;<\/span>
\nhttpPost.<\/span>setEntity<\/span>(<\/span>entity)<\/span>;<\/span>
\nhttpPost.<\/span>setHeader<\/span>(<\/span>"Content-type"<\/span>,<\/span> "application\/json"<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u53d1\u9001\u8bf7\u6c42<\/span>
\nCloseableHttpResponse<\/span> response =<\/span> httpClient.<\/span>execute<\/span>(<\/span>httpPost)<\/span>;<\/span><\/p>\n

\u9009\u62e9\u5efa\u8bae<\/h3>\n