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我正在处理spring应用程序。我现在面临的问题与数据库连接，以获得records.Below是例外：尝试获取数据时发生SQLException
Error org.springframework.jdbc.BadSqlGrammarException: StatementCallback; bad SQL grammar [SELECT dstoreNumber, details, VALUE FROM dstore.table1 where value='400s' ]; nested exception is java.sql.SQLException: ORA-00942: table or view does not exist
我连接到分别位于两个不同的数据库服务器，两个不同的模式。
我在一个类中创建了两个JdbcTemplate对象。以下是我的代码。
spring-beans.properties
##### dstore Datasource #####
dstore.dataSource.url=jdbc:oracle:thin:@dstore1.dev.xyz.com:5150:dstore
dstore.dataSource.username=dstore
dstore.dataSource.password=password
##### dscon Datasource #####
dscon.dataSource.url=jdbc:oracle:thin:@dscon.dev.xyz.com:5150:dscon
dscon.dataSource.username=dscon
dscon.dataSource.password=password
的src /主/资源/ META-INF /数据源-config.xml中
<bean name="dstoreDataSource" class="oracle.jdbc.pool.OracleConnectionPoolDataSource">
<property name="URL" value="${dstore.dataSource.url}" />
<property name="user" value="${dstore.dataSource.username}" />
<property name="password" value="${dstore.dataSource.password}" />
</bean>
<bean name="dsconDataSource" class="oracle.jdbc.pool.OracleConnectionPoolDataSource">
<property name="URL" value="${dscon.dataSource.url}" />
<property name="user" value="${dscon.dataSource.username}" />
<property name="password" value="${dscon.dataSource.password}" />
</bean>
的src /主/资源/ META-INF /弹簧beans.xml中
<import resource="classpath:META-INF/dstore/dstore-config.xml" />
<import resource="classpath:META-INF/dscon/dscon-config.xml" />
<bean name="jdbcTemplateServicedstore" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="dstoreDataSource" />
</bean>
<bean name="jdbcTemplateServicedscon" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="dsconDataSource" />
</bean>
的src /主/资源/ META-INF/dstore/dstore-config.xml中
<?xml version="1.0"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<tx:annotation-driven proxy-target-class="false" />
<bean id="dstoreServicingTransactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="dstoreServicing" />
<qualifier value="servicing" />
</bean>
<bean id="dstoreServicing"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dstoreDataSource" />
<property name="persistenceUnitName" value="dstoreServicing" />
<property name="persistenceXmlLocation"
value="classpath:META-INF/dstore/jpa-persistence.xml" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="showSql" value="true" />
<property name="databasePlatform" value="org.hibernate.dialect.Oracle9iDialect" />
</bean>
</property>
</bean>
</beans>
的src /主/资源/ META-INF/DSCON/DSCON-config.xml中
<?xml version="1.0"?>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<aop:aspectj-autoproxy proxy-target-class="false" />
<context:annotation-config />
<tx:annotation-driven transaction-manager="dsconTransactionManager" proxy-target-class="false" />
<bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor"/>
<bean id="dsconTransactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="dataSource" ref="dscondatasource" />
<property name="entityManagerFactory" ref="dscon"/>
</bean>
<bean id="dscon" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dscondatasource" />
<property name="persistenceUnitName" value="dscon" />
<property name="persistenceXmlLocation" value="classpath:META-INF/myloans/jpa-persistence.xml" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="showSql" value="true" />
<property name="databasePlatform" value="org.hibernate.dialect.Oracle9iDialect" />
</bean>
</property>
<property name="loadTimeWeaver">
<bean class="org.springframework.instrument.classloading.InstrumentationLoadTimeWeaver"/>
</property>
</bean>
</beans>
Java类：在下面的类myDAO.getMethod2（）执行成功，但是当我打电话myDAO .getMethod1（），抛出异常“表或视图不存在”。
@component
class LoadData{
@Inject
private MyDAO myDAO;
//Gets values from database
@PostConstruct
public void loadListCodes()
{
final List<MyDTO> listValues = myDAO.getMethod2(); //successfully connected to database
try {
final List<MyDTO> listValue = myDAO.getMethod1(); //unable to connect to Database, exception is thrown
LOG.info("Method1 : " + listValue);
} catch (Exception e) {
LOG.info("exception " + e);
System.out.println("exception is :: " + e);
}
//logic goes here
}
}
Java类：
@Repository
public class MyDAOJDBCImpl implements MyDAO
{
@Inject
@Qualifier("jdbcTemplateServicedstore")
private JdbcTemplate jdbcTemplate1;
@Inject
@Qualifier("jdbcTemplateServicedscon")
private JdbcTemplate jdbcTemplate2;
private static final String SQL1 = "SELECT dstoreNumber, details, VALUE FROM dstore.table1 "
+ "WHERE value = '400S' ";
private static final String SQL2 = "SELECT dsconNumber, details, VALUE FROM dscon.table1 "
+ "WHERE value = '700S' ";
public List<MyDTO> getMethod1()
{
//unable to connect to database, throwing exception
List<MyDTO> listValues = null;
LOG.info("Retrieving data..");
try
{
listValues = jdbcTemplate1.query(SQL1,
new RowMapper<ListValueDTO>()
{
public MyDTO mapRow(final ResultSet rs, final int rowNum) throws SQLException
{
final MyDTO listValueDTO = new MyDTO();
listValueDTO.setdstoreNumber(rs.getString("dstoreNumber));
listValueDTO.setDetails(rs.getString("details"));
listValueDTO.setValue(rs.getString("value"));
return listValueDTO;
}
});
}
catch (Exception e)
{
LOG.error("Error :" + e);
}
return listValues;
}
public List<MyDTO> getMethod2()
{
List<MyDTO> listValues = null;
LOG.info("Retrieving data..");
try
{
listValues = jdbcTemplate2.query(SQL2,
new RowMapper<ListValueDTO>()
{
public MyDTO mapRow(final ResultSet rs, final int rowNum) throws SQLException
{
final MyDTO listValueDTO = new MyDTO();
//code goes here
return listValueDTO;
}
});
}
catch (Exception e)
{
LOG.error("Error :" + e);
}
return listValues;
}
}
PS：我连接到分别位于两个不同的数据库服务器和不同的模式两个不同的表。我想当我调用getMethod1（）时，它无法找到架构或无法连接到其他数据库服务器。我该如何解决这个问题？任何人都需要面对这个问题。我需要在一个java类中调用并执行不同服务器中存在的不同数据库表。
您是否使用TOAD和您的APP使用相同的Oracle用户？ – reos
是的，你的意思是连接数据库的凭据？@reos – Ran
是的，如果你可以在TOAD上执行语句，那么你可以在你的应用程序中执行语句。可能您正在使用不同的用户，或者您正在执行不同的声明。 – reos