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spring | @RequestBody

 1 year ago
source link: https://benpaodewoniu.github.io/2023/01/30/spring41/
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spring | @RequestBody

@RequestBody注解只拥有一个参数

required 默认为 true，即对象中的属性必须有一个要传，否则会抛出异常：org.springframework.http.converter.HttpMessageNotReadableException: Required request body is missing

@RequestBody注解获取的参数在请求哪？

  • post请求的requestHeaders请求头中有content-type字段，一般用来处理：applicatin/json格式的参数；
  • Spring中的@RequestBody注解是用来接收请求体中的参数数据，即requestBody请求体中，故不受参数数据长度的限制；
@Data
@AllArgsConstructor
@NoArgsConstructor
public class User {
    private Integer id;
    private String name;
    private Integer age;

}

@RequestMapping(value = "/test", method = RequestMethod.POST)
    public void test(@RequestBody User user) {
        log.info("id = {}, name = {}, age = {}", user.getId(), user.getName(), user.getAge());
    }
id = 1, name = yc, age = 23

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