create connection error, url: jdbc:mysql://localhost:3306/ssm, errorCode 1045, state 28000 java.sql.
报错如下：3月 20, 2023 11:24:16 上午 com.alibaba.druid.support.logging.JakartaCommonsLoggingImpl error 严重: create connection error, url: jdbc:mysql://localhost:3306/ssm, errorCode 1045, state 28000 ja...
Caused by: org.springframework.web.client.ResourceAccessException: I/O error on POST request for "http://xxxx.svc.cluster.local:8080/xxxx": Connection reset; nested exception is java.net.SocketException: Connection reset 什么原因导致得
这个错误是由于与指定URL的POST请求时发生了重置连接导致的。可能的原因有以下几种： 远程服务器的连接被重置：这可能是由于服务器负载过重、网络问题或服务器故障等原因导致的。可以尝试重新发送请求，或者联系服务提供商检查服务器状态。 客户端和服务器之间的网络连接问题：可能由于网络连接不稳定、防火墙配置或代理设置等问题导致连接重置。可以检查网络...
OSSJavaSDK报ConnectiontoXXXXrefused错误
问题描述使用OSS Java SDK时，报类似如下错误信息。Connection to http://buname.oss-cn-hangzhou-internal.aliyuncs.com refused [RequestId]: Unknown at com.aliyun.oss...
创建API测试调用报错FailedtoobtainJDBCConnection;nestedexceptionisjava.sql.SQLException:Unknowninitialcharactersetindex'***'receivedfromserver.Initialclientcharactersetcanbeforcedviathe'characterEncoding'property
问题描述Dataphin中创建API，测试调用报错：{ "code":500, "bizCode":"DPN-OLTP-ENGINE-009", "message":"org.springframework.jdbc.CannotGetJdbcConnectionException: F...
解决mqtt连接报Connection lost (32109) - java.lang.IllegalArgumentException: Invalid UTF-8 char: [a]错误问题
1、出现问题现象：2、解决办法：查找哪些发送主题topic和发送playload数据是否是utf-8编码（1）验证字符串是否为utf-8编码的代码如下：public static boolean validateUTF8String(String input) { for (int i = 0; i ...
![解决mqtt连接报Connection lost (32109) - java.lang.IllegalArgumentException: Invalid UTF-8 char: [a]错误问题](https://ucc.alicdn.com/pic/developer-ecology/63b53c64f5604abc9b0560667485ebdb.jpg)
Call to master/192.168.137.101:9001 failed on connection exception: java.net.ConnectException: Connection refused
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error testing connection java.sql.SQLException: ORA-00923异常问题
error testing connection java.sql.SQLException: ORA-00923: 未找到要求的 FROM 关键字具体报错如下在eclipse运行时后台并无报错,但是在tomcat的tm.out文件夹中很多提示这个问题.这是jta中连接池没有找到么?
Myeclipse报错Could not obtain connection metadata java.sql.SQLException: Io exception
$stringUtil.substring( $!{XssContent1.description},200)...
Could not open JDBC Connection for transaction; nested exception is java.sql.SQLException: Connectio
$stringUtil.substring( $!{XssContent1.description},200)...
HTTP Status 500 - Could not open JDBC Connection for transaction; nested exception is java.lang.NoCl
HTTP Status 500 - Could not open JDBC Connection for transaction; nested exception is java.lang.NoClassDefFoundError: com/mchange/v2/sql/SqlUtils type Exception report message Could not open JDBC C...
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