异常处理的问题

[airfox2000]

写了这样一个函数
public Object executeSingleQuery(String strPoolName,String sqlString)
{
Statement stmt = null;
ResultSet rs = null;
Object returnObject = null;
Connection conn = null;
try{
conn = getConnection(strPoolName);
stmt = conn.createStatement();
rs = stmt.executeQuery(sqlString);
if(rs.next()){
returnObject = rs.getObject(1);
}
rs.close();
stmt.close();
conn.commit();
freeConnection(strPoolName,conn);
}catch (SQLException e){
log(e.toString()+",执行查询语句失败");
rs.close();
stmt.close();
freeConnection(strPoolName,conn);
throw e;
}
return returnObject;
}

提示throw e这行有错，错误提示为
Error #: 360 : unreported exception: java.sql.SQLException; must be caught or declared to be thrown at line 235, column 5
我觉得没有错啊，为什么？当把catch里的
rs.close();
stmt.close();
throw e;
去掉则正常了，但这不符合要求啊，请高手帮忙哦！

[airfox2000]

我知道如何解决了,函数声明要改
public Object executeSingleQuery(String strPoolName,String sqlString) throws SQLException

[XqYuan]

如果你抛出的错误不是RuntimeException，就应该在方法中throws，如果是RuntimeException就不用