有没有办法在mybatis resultMap中指定一个String最多应该有20个字符？或者如何设置精确度，如NUMBER（4,2）？
例如，我有一个如下所示的结果图：
<resultMap id="IMap" type="com.optsol.beans.Item">
<result property="item_id" column="ITEM_ID" jdbcType="INTEGER" />
<result property="item_desc" column="ITEM_DESC" jdbcType="VARCHAR" />
<result property="min_qty" column="MIN_QTY" jdbcType="INTEGER" />
<result property="max_qty" column="MAX_QTY" jdbcType="INTEGER" />
<result property="abc" column="ABC" jdbcType="VARCHAR" />
<result property="item_weight" column="ITEM_WEIGHT" jdbcType="DOUBLE" />
<result property="size_cl" column="SIZE_CL" jdbcType="INTEGER" />
<result property="weight_class" column="WEIGHT_CLASS" jdbcType="INTEGER" />
<result property="exp_period" column="EXP_PERIOD" jdbcType="DOUBLE" />
<result property="code" column="CODE" jdbcType="VARCHAR" />
<result property="um" column="UM" jdbcType="VARCHAR" />
<result property="img" column="IMG" jdbcType="VARCHAR" />
<result property="conv_factor" column="CONV_FACTOR" jdbcType="DOUBLE" />
<result property="vol" column="VOL" jdbcType="INTEGER" />
<result property="info" column="INFO" jdbcType="VARCHAR" />
<result property="statist_report" column="STATIST_PERIOD"
jdbcType="INTEGER" />
<result property="pack_parent" column="PACK_PARENT" jdbcType="INTEGER" />
<result property="group_parent" column="GROUP_PARENT" jdbcType="INTEGER" />
<result property="order_full" column="ORDER_FULL" jdbcType="INTEGER" />
<result property="insDate" column="INSDATE" />
<result property="updDate" column="UPDDATE" />
<result property="insUser" column="INSUSER" jdbcType="VARCHAR" />
<result property="updUser" column="UPDUSER" jdbcType="VARCHAR" />
</resultMap>
我可以将int的位数限制为仅1，在“。”后面显示N个元素。在浮点数上或将字符串大小限制为某个数字？
我正在处理的视图有这个列结构：
('ITEM_ID','NUMBER(10)','No',null,1,null,'NO','NO','NO');
('ITEM_DESC','VARCHAR2(80)','No',null,2,null,'NO','NO','NO');
('MIN_QTY','NUMBER(10)','Yes',null,3,null,'NO','NO','NO');
('MAX_QTY','NUMBER(10)','Yes',null,4,null,'NO','NO','NO');
('ABC','VARCHAR2(1)','No',null,5,null,'NO','NO','NO');
('ITEM_WEIGHT','NUMBER(10,3)','Yes',null,6,null,'NO','NO','NO');
('SIZE_CL','NUMBER(2)','Yes',null,7,null,'NO','NO','NO');
('WEIGHT_CLASS','NUMBER(2)','Yes',null,8,null,'NO','NO','NO');
('EXP_PERIOD','NUMBER(10,3)','Yes',null,9,null,'NO','NO','NO');
('CODE','VARCHAR2(20)','Yes',null,10,null,'NO','NO','NO');
('UM','VARCHAR2(15)','No',null,11,null,'NO','NO','NO');
('IMG','VARCHAR2(100)','Yes',null,12,null,'NO','NO','NO');
('CONV_FACTOR','NUMBER(10,4)','Yes',null,13,null,'NO','NO','NO');
('VOL','NUMBER(10)','Yes',null,14,null,'NO','NO','NO');
('INFO','VARCHAR2(100)','Yes',null,15,null,'NO','NO','NO');
('STATIST_PERIOD','NUMBER(5)','Yes',null,16,null,'NO','NO','NO');
('PACK_PARENT','NUMBER(10)','Yes',null,17,null,'NO','NO','NO');
('GROUP_PARENT','NUMBER(10)','Yes',null,18,null,'NO','NO','NO');
('ORDER_FULL','NUMBER(1)','No',null,19,null,'NO','NO','NO');
('INSDATE','DATE','No',null,20,null,'NO','NO','NO');
('UPDDATE','DATE','No',null,21,null,'NO','NO','NO');
('INSUSER','VARCHAR2(4000)','Yes',null,22,null,'NO','NO','NO');
('UPDUSER','VARCHAR2(4000)','Yes',null,23,null,'NO','NO','NO');
编辑1：每当我尝试调用存储过程在此视图中添加新项目时...我会收到此错误：
org.apache.ibatis.exceptions.PersistenceException:
### Error updating database. Cause: java.sql.SQLException: ORA-06502: PL/SQL: numeric or value error: character to number conversion error
ORA-06512: at line 2
我创建了一个用于测试目的的类，试图调用add方法：
private ItemService iService = new ItemService(Item.class);
@Test
public void addProcTest() {
Map<String, Object> paramMap = new HashMap<String, Object>();
paramMap.put("p_item_desc", "theo3");
paramMap.put("p_min_qty", 1);
paramMap.put("p_max_qty", 2);
paramMap.put("p_abc", "A");
paramMap.put("p_item_weight", 2);
paramMap.put("p_size_cl", 1);
paramMap.put("p_weight_class", 1);
paramMap.put("p_exp_period", 2);
paramMap.put("p_code", "theo");
paramMap.put("p_um", "MP");
paramMap.put("p_conv_factor",2.0);
paramMap.put("p_vol", 2);
paramMap.put("p_info", "theo2");
paramMap.put("p_pack_parent", 105249);
paramMap.put("p_group_parent", 0);
paramMap.put("p_order_full", 0);
paramMap.put("p_statist_period", 0);
paramMap.put("p_do_it", 1);
iService.addItem(paramMap);
}
在ItemMapper.xml中调用存储过程：
<update id="addItem" parameterType="java.util.Map"
statementType="CALLABLE">
{call
SSLS_WMS.PKG_ITEM_ADMIN.PCREATEITEM(
#{p_item_desc,jdbcType=VARCHAR},
#{p_min_qty,jdbcType=INTEGER},
#{p_max_qty,jdbcType=INTEGER},
#{p_abc,jdbcType=VARCHAR},
#{p_item_weight,jdbcType=DOUBLE},
#{p_size_cl,jdbcType=INTEGER},
#{p_weight_class,jdbcType=INTEGER},
#{p_exp_period,jdbcType=DOUBLE},
#{p_code,jdbcType=VARCHAR},
#{p_um,jdbcType=VARCHAR},
#{p_conv_factor,jdbcType=DOUBLE},
#{p_vol,jdbcType=INTEGER},
#{p_info,jdbcType=VARCHAR},
#{p_pack_parent,jdbcType=INTEGER},
#{p_group_parent,jdbcType=INTEGER},
#{p_order_full,jdbcType=INTEGER},
#{p_statist_period,jdbcType=INTEGER},
#{p_do_it, jdbcType=INTEGER}
)
}
</update>
，最后是存储过程：
PROCEDURE pCreateItem (
p_ITEM_DESC item.ITEM_DESC%type,
p_MIN_QTY item.MIN_QTY%type,
p_MAX_QTY item.MAX_QTY%type,
p_ABC item.ABC%type,
p_ITEM_WEIGHT item.ITEM_WEIGHT%type,
p_SIZE_CL item.SIZE_CL%type,
p_WEIGHT_CLASS item.WEIGHT_CLASS%type,
p_EXP_PERIOD item.EXP_PERIOD%type,
p_CODE item.CODE%type,
p_UM item_pack.UM%type,
p_IMG item_pack.IMG%type,
p_CONV_FACTOR item_pack.CONV_FACTOR%type,
p_VOL item_pack.VOL%type,
p_INFO item_pack.INFO%type,
p_PackParent item_pack.pack_id%type,
p_GroupParent item_pack.pack_id%type,
p_order_full item.order_full%type default 0,
p_statist_period item.STATIST_PERIOD%type default 3,
p_do_it PLS_INTEGER DEFAULT 1
);
答案 0 :(得分：3)
你的问题是你的程序有更多的参数，然后你在MyBatis调用时传递给它，所以在缺少参数之后的任何时候你应该有ORA-06502: PL/SQL: numeric or value error错误，因为以下参数不具有相同的类型按照你传递的顺序。
你的程序有这个：
(...)
p_EXP_PERIOD item.EXP_PERIOD%type,
p_CODE item.CODE%type,
p_UM item_pack.UM%type,
p_IMG item_pack.IMG%type,
p_CONV_FACTOR item_pack.CONV_FACTOR%type,
p_VOL item_pack.VOL%type,
(...)
在MyBatis的电话中，你正在做：
(...)
#{p_exp_period,jdbcType=DOUBLE},
#{p_code,jdbcType=VARCHAR},
#{p_um,jdbcType=VARCHAR},
#{p_conv_factor,jdbcType=DOUBLE},
#{p_vol,jdbcType=INTEGER},
#{p_info,jdbcType=VARCHAR},
(...)
所以在p_IMG item_pack.IMG%type,之后，你没有传递任何错过类型会导致你的错误。