Question

我尝试在存储过程中传达汽车列表，但是我收到错误。

我上课了：

public class Car {
  private final int id;
  private final String mark;

  public ProviderVirtualCondition(
        @JsonProperty("id") int id,
        @JsonProperty("mark") String mark) {

    this.id = id;
    this.mark = mark;
  }
}

程序：

create or replace PACKAGE Cars AS
  TYPE car_array IS TABLE OF CAR%ROWTYPE;

  PROCEDURE updateCars(cars in car_array);
END Cars;

create or replace PACKAGE BODY Cars AS
  PROCEDURE updateCars(cars in car_array) AS
    BEGIN
      INSERT INTO  car (id, mark) VALUES (cars(1).id, cars(1).mark);
    END updateCars;
END Cars;

我想在DB中插入Car对象列表。我这样做：

List<Car> cars = new ArrayList<Car>();
cars.add(new Car(1, "Honda"));
SqlParameterSource in = new MapSqlParameterSource().addValue(
            "cars",
            cars
    );
updateCars().execute(in);

在updateCars（）中：

String carsTypeName = format("%s.%s.%s", schema, PACKAGE, "car_array");
return new SimpleJdbcCall(jdbcTemplate)
            .withCatalogName(PACKAGE)
            .withoutProcedureColumnMetaDataAccess()
            .withProcedureName("updateCars")
            .withSchemaName(schema)
            .declareParameters(new SqlParameter("cars",  Types.ARRAY, carsTypeName));

得到：

java.sql.SQLException: Fail to convert to internal representation: [....Car@60c94c7f]

如何解决？

我使用https://coderanch.com/t/589556/framework/Calling-Stored-Procedure-list-values

中的代码解析它

无法转换为内部表示（List <object>）

0 个答案: