myeclipse中提示如下错误，是怎么回事，如何解决？com.mysql.jdbc.exceptions.jdbc4.CommunicationsException:CommunicationslinkfailureLastpacketsenttotheserverwas0msago. atsun.reflect.GeneratedConstructorAccessor5.newInstance...

打开端口50,000上服务器/192.168.1.100的套接字时出错，消息为：Connectiontimedout:connect。ERRORCausedby:com.ibm.db2.jcc.am.DisconnectNonTransientConnectionException:[jcc][t4][2043][11550][3.59.81]异常java.net.ConnectException...

使用javamail发送邮件报告的错误，请高手指点一二[[SendMailProcessor:sendMail()]ERROR[3548sendfail.Exception:org.apache.commons.mail.EmailException:Sendingtheemailtothefollowingserverfailed:192.168.2.211:25]org.apache.comm...

SQL通用分页高手请帮忙修正CREATEPROCEDUREpagination3@tblNamevarchar(255),--表名@strGetFieldsvarchar(1000)=''*'',--需要返回的列@fldNamevarchar(255)='''',--排序的字段名@PageSizeint=10,--页尺寸@PageIn...