ObjectMapper默认Number转换为Double解决方式：
设置ObjectMapper的默认转换方式
ObjectMapper mapper = new ObjectMapper()mapper.enable(DeserializationFeature.USE_BIG_DECIMAL_FOR_FLOATS);
所有配置代码：
@CompileStatic
@TypeChecked
@Configuration
class RestTemplateConfig {
@LoadBalanced
@Bean
RestTemplate restTemplate() {
RestTemplate restTemplate = new RestTemplate()
List<HttpMessageConverter<?>> converterList = restTemplate.getMessageConverters()
for (HttpMessageConverter<?> item : converterList) {
if (item.getClass() == StringHttpMessageConverter.class) {
item = new StringHttpMessageConverter(StandardCharsets.UTF_8)
}
if (item.getClass() == MappingJackson2HttpMessageConverter.class) {
MappingJackson2HttpMessageConverter converter = item as MappingJackson2HttpMessageConverter
def mapper = converter.getObjectMapper()
mapper.enable(DeserializationFeature.USE_BIG_DECIMAL_FOR_FLOATS)
}
}
return restTemplate
}
}
