Spring RestTemplate Json 例子

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。

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Plese check the following code:

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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.

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