spring-boot使用自定义HttpMessageConverter将application/x-www-form-urlencoded请求数据转为对象

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1.定义converter

public class CustomerMessageConverter extends AbstractHttpMessageConverter<T> {private static final FormHttpMessageConverter formHttpMessageConverter=new FormHttpMessageConverter();private static final ObjectMapper mapper=new ObjectMapper();@Overrideprotected boolean supports(Class<?> aClass) {return T.class==aClass;}@Overrideprotected T readInternal(Class<? extends T> aClass, HttpInputMessage httpInputMessage) throws IOException, HttpMessageNotReadableException {Map<String,String> map=formHttpMessageConverter.read(null,httpInputMessage).toSingleValueMap();return mapper.convertValue(map,T.class);}@Overrideprotected void writeInternal(T t, HttpOutputMessage httpOutputMessage) throws IOException, HttpMessageNotWritableException {}
}

2.MvcConfiguer中添加自定义converter

@Configuration
public class MvcConfigurer  implements WebMvcConfigurer {@Beanpublic CustomerMessageConverter customerMessageConverter() {CustomerMessageConverter converter=new CustomerMessageConverter();converter.setSupportedMediaTypes(Arrays.asList(MediaType.APPLICATION_FORM_URLENCODED));return converter;}@Overridepublic void configureMessageConverters(List<HttpMessageConverter<?>> converters) {converters.add(customerMessageConverter());}
}

3.编写实体类

@Data
public class Student {String name;int age;String phone;String address;String reqJson;
}

4.编写controller

@RestController
@RequestMapping(value = "/test")
public class TestController {private Logger logger= LoggerFactory.getLogger(getClass());@PostMapping(consumes = {"application/x-www-form-urlencoded;charset=UTF-8"})public WebResponseResult test(@ModelAttribute Student student) {logger.info("---"+student.getName()+","+student.getAge()+","+student.getPhone()+","+student.getAddress());return WebResponseResult.success(student);}
}