ibatis 调用存储过程报java.lang.NullPointerException错,50分相谢!!
(1)我的xml:
<parameterMap id="invoiceInsertMap" class="java.util.map" >
<parameter property="invoicestart" jdbcType="NUMBER" javaType="java.lang.Long" mode="IN"/>
<parameter property="totalnum" jdbcType="NUMBER" javaType="java.lang.Integer" mode="IN"/>
<parameter property="invoicebookid" jdbcType="NUMBER" javaType="java.lang.Integer" mode="IN"/>
</parameterMap>
<procedure id="invoiceInsert" parameterMap="invoiceInsertMap" >
{call invoiceInsert (?,?,?)}
</procedure>
(2)invoiceInsert 为数据库中存储过程,代码无误
(3)对外调用的接口:
public int invoiceInsert(InvoiceBook invoicebook) {
HashMap paramMap = new HashMap();
paramMap.put("invoicestart", invoicebook.getInvoicestart());
paramMap.put("totalnum", invoicebook.getInvoicedicid());
paramMap.put("invoicebookid", invoicebook.getInvoicebookid());
return invoiceDao.invoiceInsert(paramMap);
}
(4)invoiceDao 对xml配置中调用:
public int invoiceInsert(HashMap paramMap) {
int i=0;
try{
daoManager.startTransaction();
i=((Integer)queryForObject("invoiceInsert",paramMap)).intValue();
daoManager.commitTransaction();
}catch(Exception e ){
e.printStackTrace();
}
return i;
}
控制台打印的结果
{call invoiceInsert (?,?,?)}
[100000000, 20, 1]
Types: [java.lang.Long, java.lang.Integer, java.lang.Integer]
java.lang.NullPointerException
如果可以给个实例,也万分感谢!!!