当前位置: 技术问答>java相关
JSP中的包代码问题！
来源: 互联网 发布时间：2017-04-23
本文导语: 有如下一行代码： Connection conn = DriverManager.getConnection(sConnStr,"123","123"); 编译时报错： unreported exception java.sql.SQLException; must be caught or declared to be thrown Connection conn = DriverManager.getConnection(sConnStr,"123","123");...
有如下一行代码：
Connection conn = DriverManager.getConnection(sConnStr,"123","123");
编译时报错：
unreported exception java.sql.SQLException; must be caught or declared to be thrown
Connection conn = DriverManager.getConnection(sConnStr,"123","123");
加上try以后的代码：
try
{
Connection conn = DriverManager.getConnection(sConnStr,"123","123");
}
catch(SQLException ex)
{
System.err.println("connection:" + ex.getMessage());
}
依然出错：
illegal start of type try
Connection conn = DriverManager.getConnection(sConnStr,"123","123");
编译时报错：
unreported exception java.sql.SQLException; must be caught or declared to be thrown
Connection conn = DriverManager.getConnection(sConnStr,"123","123");
加上try以后的代码：
try
{
Connection conn = DriverManager.getConnection(sConnStr,"123","123");
}
catch(SQLException ex)
{
System.err.println("connection:" + ex.getMessage());
}
依然出错：
illegal start of type try
|
sorry
Connection conn=null;
try
{
conn = DriverManager.getConnection(sConnStr,"123","123");
}
catch(Exception ex)//这里抛出的异常不是SQLException
{
System.err.println("connection:" + ex.getMessage());
}
Connection conn=null;
try
{
conn = DriverManager.getConnection(sConnStr,"123","123");
}
catch(Exception ex)//这里抛出的异常不是SQLException
{
System.err.println("connection:" + ex.getMessage());
}
|
还需要catch(java.lang.ClassNotFoundException e)才可以
您可能感兴趣的文章:
本站(WWW.)旨在分享和传播互联网科技相关的资讯和技术，将尽最大努力为读者提供更好的信息聚合和浏览方式。
本站(WWW.)站内文章除注明原创外，均为转载、整理或搜集自网络。欢迎任何形式的转载，转载请注明出处。
本站(WWW.)站内文章除注明原创外，均为转载、整理或搜集自网络。欢迎任何形式的转载，转载请注明出处。