[英]Mapping multiple out params in mybatis mapper when calling an oracle stored procedure from java
[英]cannot receive out parameter from oracle procedure executed by mybatis
我使用Spring 3.0.5开发java应用程序,并使用mybatis-spring使用数据库Oracle。
我有mybatis的界面:
public interface SubscriberMapper {
Subscriber getSubscriberByMsisdn(String msisdn);
void insertSubscriber(Subscriber subscriber);
void updateSubscriber(Subscriber subscriber);
void canCustomerSubscribe(@Param("msisdn") String msisdn,
@Param("responseCode") Integer responseCode);
}
canCustomerSubscribe的mybatis xml内容:
<parameterMap id="canCustomerSubscribeParams" type="map">
<parameter property="msisdn" jdbcType="VARCHAR" javaType="java.lang.String" mode="IN"/>
<parameter property="responseCode" jdbcType="NUMERIC" javaType="java.lang.Integer" mode="OUT"/>
</parameterMap>
<select id="canCustomerSubscribe" parameterMap="canCustomerSubscribeParams" statementType="CALLABLE">
CALL wallet.pkg_wallet_validation.can_customer_subscribe(#{msisdn}, #{responseCode})
</select>
和要执行的代码:
public void subscribe(String msisdn) throws InvalidArgumentException {
Integer responseCode = 0;
subscriberMapper.canCustomerSubscribe(msisdn, responseCode);
System.out.println("msisdn: " + msisdn + ", responseCode: " + responseCode);
}
当我用无效的“msisdn”执行“subscribe”方法时,我没有从程序中收到实际值。 在数据库中执行此过程会返回reponseValue = 1001,但在Java代码中我收到0.我打开调试日志记录为stout for mybatis,输出为:
2011-10-19 10:32:46,732 DEBUG [main] (Slf4jImpl.java:28) ooo Connection Opened 2011-10-19 10:32:46,909 DEBUG [main] (Slf4jImpl.java:28) ==> Executing: CALL wallet.pkg_wallet_validation.can_customer_subscribe(?, ?) 2011-10-19 10:32:46,911 DEBUG [main] (Slf4jImpl.java:28) ==> Parameters: 509999999(String), 0(Integer) msisdn: 509999999, responseCode: 0
当我更改“subscribe”方法responseCode = null时,我收到并错误:
org.springframework.jdbc.UncategorizedSQLException: Error setting null parameter. Most JDBC drivers require that the JdbcType must be specified for all nullable parameters. Cause: java.sql.SQLException: Invalid column type ; uncategorized SQLException for SQL []; SQL state [null]; error code [17004]; Invalid column type; nested exception is java.sql.SQLException: Invalid column type
我找到了解决方案 在canCustomerSubscribe方法中,Map必须是user而不是两个参数。
void canCustomerSubscribe(Map<String,Object> params);
mybatis xml内容:
<select id="canCustomerSubscribe" parameterType="java.util.HashMap" statementType="CALLABLE">
CALL wallet.pkg_wallet_validation.can_customer_subscribe(
#{msisdn, jdbcType=VARCHAR, javaType=java.lang.String, mode=IN},
#{responseCode,jdbcType=NUMERIC, javaType=java.lang.Integer, mode=OUT})
</select>
(我需要在参数属性之间添加逗号)
从订阅服务方法调用它:
public void subscribe(String msisdn) throws InvalidArgumentException {
Map<String, Object> params = new HashMap<String, Object>();
params.put("msisdn", msisdn);
params.put("responseCode", null);
subscriberMapper.canCustomerSubscribe(params);
System.out.println(params.get("responseCode"));
}
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