Spring2.0事务配置问题（重写父类方法后出错）
由于一些功能模块用到的Service和DAO层的方法类似，现将类似的方法进行重构，提出基本的Service和DAO，真正用到的Service和DAO只要实现或者继承即可。在重构后遇到事务配置问题，具体如下。
抛出异常：
org.springframework.dao.InvalidDataAccessApiUsageException: Write operations are not allowed in read-only mode (FlushMode.NEVER/MANUAL): Turn your Session into FlushMode.COMMIT/AUTO or remove 'readOnly' marker from transaction definition.
at org.springframework.orm.hibernate3.HibernateTemplate.checkWriteOperationAllowed(HibernateTemplate.java:1085)
at org.springframework.orm.hibernate3.HibernateTemplate$12.doInHibernate(HibernateTemplate.java:624)
at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:362)
at org.springframework.orm.hibernate3.HibernateTemplate.save(HibernateTemplate.java:622)
Spring2.0配置：
<aop:config> <aop:advisor pointcut="execution(* aumy2008.service.impl..*.*(..)) " advice-ref="txAdviceRet" /> </aop:config> <tx:advice id="txAdviceRet" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="get*" read-only="true" propagation="REQUIRED" /> <tx:method name="load*" read-only="true" propagation="REQUIRED" /> <tx:method name="find*" read-only="true" propagation="REQUIRED" /> <tx:method name="*" propagation="REQUIRED" /> </tx:attributes> </tx:advice>
重构后的基本接口和实现类的部分代码：
public interface IBaseService<T> {
public Long add(T t);
public void modify(T t);
public void addOrModify(T t);
......
}
public class BaseService<T> implements IBaseService<T> {
private IRBaseDao<T> irBaseDao;
private boolean isSwitchCharsetTranslate;
public BaseService(IRBaseDao<T> irBaseDao, boolean isSwitchCharsetTranslate)
throws Exception {
if (irBaseDao == null) {
throw new Exception("irBaseDao may not be null");
}
this.irBaseDao = irBaseDao;
this.isSwitchCharsetTranslate = isSwitchCharsetTranslate;
}
public Long add(T t) {
return (Long) this.irBaseDao.save(t);
}
public void addOrModify(T t) {
this.irBaseDao.saveOrUpdate(t);
}
public void modify(T t) {
this.irBaseDao.update(t);
}
......
}
public interface IRBaseDao<T> {
public Serializable save(Object o);
public void update(Object o);
public void saveOrUpdate(Object o);
......
}
public class RBaseDao<T> extends HibernateDaoSupport implements IRBaseDao<T> {
public Serializable save(Object o) {
Serializable id = getHibernateTemplate().save(o);
this.flush();
return id;
}
public void update(Object o) {
getHibernateTemplate().update(o);
this.flush();
}
public void saveOrUpdate(Object o) {
getHibernateTemplate().saveOrUpdate(o);
this.flush();
}
......
}
具体业务的接口和实现类的部分代码：
public interface ITypeService extends IBaseService<Type> {
}
public class TypeService extends BaseService<Type> implements ITypeService {
private IRBaseDao<Type> typeDAO;
public boolean isSwitchCharsetTranslate;
public TypeService(IRBaseDao<Type> typeDAO, boolean isSwitchCharsetTranslate)
throws Exception {
super(typeDAO, isSwitchCharsetTranslate);
this.typeDAO = typeDAO;
this.isSwitchCharsetTranslate = isSwitchCharsetTranslate;
}
public void addOrModify(Type t) {
typeDAO.saveOrUpdate(toDBValue(t));
}
public Long add(Type t) {
return (Long) typeDAO.save(toDBValue(t));
}
public void modify(Type t) {
typeDAO.update(toDBValue(t));
}
private Type toDBValue(Type type) {
......
return type;
}
}
public interface ITypeDAO extends IBaseDao<Type> {
}
public class TypeDAO extends RBaseDao<Type> implements ITypeDAO {
}
如果TypeService不重写父类的方法，运行正常
代码如：
public class TypeService extends BaseService<Type> implements ITypeService {
public TypeService(IRBaseDao<Type> typeDAO, boolean isSwitchCharsetTranslate)
throws Exception {
super(typeDAO, isSwitchCharsetTranslate);
}
}
我现在就是想在TypeService类中实现字符集的转换，需要重写add等三个方法，当重写后，运行就报开始给出的异常。