我使用Camunda版本7.19.0。我已经实现了一个控制器，它需要一个TaskQueryDto来根据指定的变量标准查找所有任务。

@RestController
public class RestEngineController {

    @Autowired
    private TaskCustomService taskCustomService;

    @PostMapping(value = "/rest-engine/task-with-variables", produces = MediaType.APPLICATION_JSON_VALUE)
    List<TaskWithVariables> getTasks(@RequestBody TaskQueryDto query,
                                     @RequestParam("firstResult") Integer firstResult,
                                     @RequestParam("maxResults") Integer maxResults) {
        return taskCustomService.getTasks(query, firstResult, maxResults);
    }
}

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然而，我遇到了一个问题。在Camunda的ConditionQueryParameterDto中，没有“in”的运算符。

public class ConditionQueryParameterDto {

  public ConditionQueryParameterDto() {

  }

  public static final String EQUALS_OPERATOR_NAME = "eq";
  public static final String NOT_EQUALS_OPERATOR_NAME = "neq";
  public static final String GREATER_THAN_OPERATOR_NAME = "gt";
  public static final String GREATER_THAN_OR_EQUALS_OPERATOR_NAME = "gteq";
  public static final String LESS_THAN_OPERATOR_NAME = "lt";
  public static final String LESS_THAN_OR_EQUALS_OPERATOR_NAME = "lteq";
  public static final String LIKE_OPERATOR_NAME = "like";
  public static final String NOT_LIKE_OPERATOR_NAME = "notLike";

型
那么，如何使用“in”操作符呢？