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layer出现Uncaught ReferenceError: layer is not defined错误

layer出现UncaughtReferenceError:layerisnotdefined错误的原因，代码如下：//layui的JavaScript代码区域layui.use('layer',function(){varlayer=layui.layer;var$=layui.$;//获得layui中的jquery...

开发笔记 ·2024-09-29

php使用curl伪造来源ip和refer的方法

CURL函数库PHP中的CURL函数库(ClientURLLibraryFunction)如下：curl_close—关闭一个curl会话curl_copy_handle—拷贝一个curl连接资源的所有内容和参数curl_errno—返回一个包含当前会话错误信息的数字编号curl_e...

开发笔记 ·2024-09-10

使用putty远程登录Ubuntu时，报Network error:Connection refused错误及解决

putty远程登录Ubuntu，弹出Networkerror:Connectionrefused的错误提示框，就是因为Ubuuntu没有安装ssh服务。执行命令：sudoapt-getinstallopenssh-server1然后打开putty，在HostName（orIPaddress）输入Ubuntu的IP地址，...

开发笔记 ·2024-08-20

git错误-拒绝连接：Failed to connect to 127.0.0.1 port 8888: Connection refused

错误提示Failedtoconnectto127.0.0.1port8888:Connectionrefused致命错误：无法访问'http://git.xxx.xx/xxx.git/'：Failedtoconnecttogit.xx.xxport8888:拒绝连接解决方法取消代理gitconfig--globalht...

开发笔记 ·2024-07-12

PHP伪造referer访问地址

1、方法一（CURL）：$ch=curl_init();curl_setopt($ch,CURLOPT_URL,"https://www.51dev.com");curl_setopt($ch,CURLOPT_REFERER,"https://www.51dev.com");curl_exec($ch);c...

开发笔记 ·2024-02-29

git 报错 fatal: bad object refs/remotes/origin/xxx 解决方法

git拉取时报错fatal:badobjectrefs/remotes/origin/xxxerror:xxxxxdidnotsendallnecessaryobjects 解决方法，到项目的.git 目录下进入refs/remotes/origin/删除所有内容重新拉取，成功...

开发笔记 ·2023-10-10

ORA-55366: unknown namespace prefix “string”

文档解释ORA-55366:unknownnamespaceprefix“string”Cause:AnattemptwasmadetomakeuseofanundefinednamespaceprefixinOracleVirtualPrivateDatabase(VPD)metadata.A...

IT技术学习 ·2023-07-28

ORA-32415: fast refreshable remote materialized view on a detail table with commit SCN-based materialized view log is not supported

文档解释ORA-32415:fastrefreshableremotematerializedviewonadetailtablewithcommitSCN-basedmaterializedviewlogisnotsupportedCause:Thematerializedviewcreationfailedbeca...

IT技术学习 ·2023-07-28

ORA-51701: Invalid file URL or path prefix

文档解释ORA-51701:InvalidfileURLorpathprefixCause:EitheraURLorpathprefixwithinvalidsyntaxwasprovided.Action:ChecktheURL.ORA-51701:InvalidfileURLorpathprefix错误码发生在应用...

IT技术学习 ·2023-07-28

ORA-32313: REFRESH FAST of “string”.”string” unsupported after PMOPs

文档解释ORA-32313:REFRESHFASTof“string”.”string”unsupportedafterPMOPsCause:APartitionMaintenanceOperation(PMOP)hasbeenperformedonadetailtabl...

IT技术学习 ·2023-07-28

ORA-41697: attribute prefix missing in aggregate specification: string

文档解释ORA-41697:attributeprefixmissinginaggregatespecification:stringCause:Anattemptwasmadetospecifyanaggregatepredicateacrossmultipleprimitiveeventtypeswithnoatt...

IT技术学习 ·2023-07-28

ORA-31158: schema “string” currently being referenced

文档解释ORA-31158:schema“string”currentlybeingreferencedCause:ThespecifiedschemaURLiscurrentlybeingreferencedbythesamesession.ThiscouldhappenbecauseofPL...

IT技术学习 ·2023-07-28

ORA-53061: document name string contains reserved prefix – ORD

文档解释ORA-53061:documentnamestringcontainsreservedprefix–ORDCause:TheoperationfailedbecausethespecifieddocumentnamecontainedtheORDprefixthatisreservedforOra...

IT技术学习 ·2023-07-28

ORA-40182: invalid column reference

文档解释ORA-40182:invalidcolumnreferenceCause:Transformationexpressionhasnocolumnreferencesormorethanonereferenceorthereferenceisqualified.Action:Provideavalidexpre...

IT技术学习 ·2023-07-28

ORA-30505: system triggers should not reference a column in a WHEN clause

文档解释ORA-30505:systemtriggersshouldnotreferenceacolumninaWHENclauseCause:AnattemptwasmadetouseaWHENclausetoreferenceacolumnwithasystemtrigger,butthistypeoftrigge...

IT技术学习 ·2023-07-28