mybatis调用Oracle存储过程返回多个游标

Mybatis调用Oracle存储过程返回多个游标的步骤如下：

1. 定义存储过程

在Oracle数据库中定义存储过程，该存储过程需要返回多个游标，例如：

CREATE OR REPLACE PROCEDURE get_multi_cursor(
    p_id IN NUMBER,
    p_cursor1 OUT SYS_REFCURSOR,
    p_cursor2 OUT SYS_REFCURSOR
) AS
BEGIN
    OPEN p_cursor1 FOR SELECT * FROM table1 WHERE id = p_id;
    OPEN p_cursor2 FOR SELECT * FROM table2 WHERE id = p_id;
END;

2. 创建Java类

创建一个Java类，用于封装存储过程的参数和返回结果，例如：

public class MultiCursorResult {
    private List<Table1> table1List;
    private List<Table2> table2List;

    // getter and setter
}

3. 定义Mapper接口

在Mybatis的Mapper接口中定义调用存储过程的方法，例如：

public interface MultiCursorMapper {
    void getMultiCursor(
        @Param("id") Integer id,
        @Param("cursor1") ResultSet[] cursor1,
        @Param("cursor2") ResultSet[] cursor2
    );
}

4. 编写Mapper XML

在Mapper XML中编写调用存储过程的SQL语句，例如：

<select id="getMultiCursor" statementType="CALLABLE">
    {call get_multi_cursor(#{id},#{cursor1,mode=OUT,jdbcType=CURSOR,javaType=ResultSet},#{cursor2,mode=OUT,jdbcType=CURSOR,javaType=ResultSet})}
</select>

5. 调用Mapper方法

在Java程序中调用Mapper方法，例如：

MultiCursorMapper mapper = sqlSession.getMapper(MultiCursorMapper.class);
ResultSet[] cursor1 = new ResultSet[1];
ResultSet[] cursor2 = new ResultSet[1];
mapper.getMultiCursor(1, cursor1, cursor2);

List<Table1> table1List = new ArrayList<>();
while (cursor1[0].next()) {
    Table1 table1 = new Table1();
    table1.setId(cursor1[0].getInt("id"));
    table1.setName(cursor1[0].getString("name"));
    table1List.add(table1);
}

List<Table2> table2List = new ArrayList<>();
while (cursor2[0].next()) {
    Table2 table2 = new Table2();
    table2.setId(cursor2[0].getInt("id"));
    table2.setName(cursor2[0].getString("name"));
    table2List.add(table2);
}

MultiCursorResult result = new MultiCursorResult();
result.setTable1List(table1List);
result.setTable2List(table2List);