RestTemplate Chinese garbled code problem
Source code to see the cause of Chinese code solution

Causes the RestTemplate to receive parameters in the request response body with scrambled Chinese characters.
Source code to see the Reason for Chinese scrambled code


to take a closer look at the initialization parameter in the figure above, the default value of this parameter is as shown in the figure below.

you should know the cause of this problem and the solution. [after the RestTemplate is initialized, we will assign and modify it to the utf-8 code we need]
The solution
The SpringBoot project takes the following approach

@Configuration
public class RestTemplateConfig {
    @Bean
    public RestTemplate restTemplate(){
        RestTemplate restTemplate = new RestTemplate(factory);
        restTemplate.getMessageConverters().set(1, new StringHttpMessageConverter(StandardCharsets.UTF_8));
        return restTemplate;
    }
  }