Spring RestTemplate Json 例子

最新推荐文章于 2025-11-09 18:59:10 发布

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本文介绍如何利用Spring框架中的RestTemplate发送JSON格式的数据请求，并接收JSON响应转换为Java对象的过程。通过简单的代码示例展示了从构建HTTP头、设置内容类型到发送请求并解析返回结果的全过程。

Plese check the following code:

        pblic 
        class 
        someBean
       
        {
       
        private
        String name;
       
        private
        String age;
       
        // Getters
       
        // Setters
       
        }
       
        public 
         class 
        MyResult
       
        {
       
        private
        int 
        errorCode;
       
        private
        String errorDescription;
       
        /// Getters
       
        /// Setters
       
        }
       
        // rest Template Example
       
        class 
         MyService
       
        {
       
        @Resource
       
        privsate RestTemlate restTemplate;
       
        public
        MyResult sendRequest(SomeBean someBean)
       
        {
       
        HttpHeaders headers =
        new 
        HttpHeaders();
       
        headers.setContentType(MediaType.APPLICATION_JSON);
       
        HttpEntity request=
        new 
        HttpEntity(someBean, headers);
       
        MyResult result = restTemplate.postForObject(emailServerUrl, request, MyResult.
        class
        );
       
        return
        result;
       
        }

Notice that the server gets POST body of Json, the response is also json, but in the code we gets the class represented by the Json.

the RestTemplate use Spring Message converer to convert the response based on the content type.

Only 4 lines of code that covers the transport

Notice that the server gets POST body of Json, the response is also json, but in the code we gets the class represented by the Json.the RestTemplate uses HTTP Message converer to convert the response based on the content type.Only 4 lines of code that covers the transport and the conversion.