Json 无法反序列化 Spring 中的实例错误

Question

我正在尝试发送一个 json 长列表并从 db 中获取记录。我的控制器是：@Api(tags = Endpoint.RESOURCE_customer, description = "customer Resource")@RestController@RequestMapping(produces = MediaType.APPLICATION_JSON_VALUE,consumes = MediaType.APPLICATION_JSON_VALUE)@ResponseStatus(HttpStatus.OK)public class CustomerResourceController {    private final customerService customerService;    public CustomerResourceController(customerService customerService) {        this.customerService = customerService;    }    @ApiOperation(            value = "Return customer",            response = customerDto.class, responseContainer="List"    )    @PostMapping(value = Endpoint.RRESOURCE_customer_ID)    public List<customerDto> getCustomersByIds(@RequestBody List<Long> ids) {        return customerService.findcustomerIds(ids);    }}和客户端类是：@Headers("Content-Type: " + MediaType.APPLICATION_JSON_VALUE)public interface CustomerClient {@RequestLine("POST /customer/customers/search")    List<LocGrpDto> getCustomersByIds(@RequestBody @Validated List<Long> ids);}我使用 JSON 在邮递员中测试此服务：{ "ids": [1,7,8] }但我收到此错误：{    "timestamp": "2018-10-05T13:29:57.645+0000",    "status": 400,    "error": "Bad Request",    "message": "Could not read document: Can not deserialize instance of java.util.ArrayList out of START_OBJECT token\n at [Source: java.io.PushbackInputStream@3cb8b584; line: 1, column: 1]; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of java.util.ArrayList out of START_OBJECT token\n at [Source: java.io.PushbackInputStream@3cb8b584; line: 1, column: 1]",    "path": "/api/v1/customer/customers/search",    "errors": []}问题是什么？您在这里看到任何问题吗，或者可能是由于我的服务类或 dto 类引起的？