idea   java.sql.SQLException: Connections could not be acquired from the underlying database! 转载自:https://blog.csdn.net/iXinRu/article/details/82624112 把c3p0-config.xml放到resources下面即可

appium+python+android 在定位到模块输入内容的时候遇到了一个问题 send_keys报错 appium报错Message: Cannot set the element to 'XXXX'. Did you interact with the correct element? 查看了一下资料,说是因为android的模块属性问题 可输入的模块属性为android.widget.EditText 但因为我需要输入的模块属性非此属性所以send_keys失败 也尝试了get_va

报错信息 Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Data source rejected establishment of connection, message from server: "Too many connections" at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native

_ 报错: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with e

错误提示: java.lang.NoClassDefFoundError: com/mchange/v2/ser/Indirector at JDBC.ConnectionPool.testC3P0(ConnectionPool.java:159) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

最近在做一个支付的接口. 因为接口方使用webservice交互.  我只能去学习了下webservice 现在出了一个很古怪的问题~  我在请求他们url的时候, 返回给我找不到控制名错误 Message part refundRequest was not recognized.  (Does it exist in service WSDL?) 请教大神这是怎么回事 上代码 我这边使用的是axis. requestUrl 是 请求地址 sb.toString是我发过去的报文.       

今天群里有人问hadoop的问题,说百度上怎么都查不到,还好hadoop之前玩过一阵,也遇上过这个问题 hadoop-2.2.0  hbase 0.95-hadoop2的 ,hdfs正常 ,启动 hbase 的时候hmaster启动进程启动就shutdown了 2013-11-21 20:07:58,892 FATAL [master:master:60000] master.HMaster: Unhandled exception. Starting shutdown.java.io.IOEx

java.sql.SQLException: Connections could not be acquired from the underlying database! at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:106) at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnection

!ENTRY org.eclipse.core.jobs 2 2 2014-01-08 09:28:06.387 !MESSAGE Job found still running after platform shutdown. Jobs should be canceled by the plugin that scheduled them during shutdown: org.eclipse.ui.internal.Workbench$55 参考这里:http://www.metod.s

在小程序中获取定位具体信息时,不要配置腾讯地图中的WebServiceAPI中的域名白名单什么的,域名配置直接在小程序后台中配置(就是这个货https://apis.map.qq.com), 千万千万不要在设置域名白名单 正确操作是在小程序的后台设置中设置域名

网页运行的错误: HTTP Status 500 - Handler processing failed; nested exception is java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config   type Exception report message Handler processing failed; nested exception is java.lang.NoClassDefFoundError

1)具体报错 { "Message": "出现错误.", "ExceptionMessage": "“ObjectContent`1”类型未能序列化内容类型“application/json; charset=utf-8”的响应正文.", "ExceptionType": "System.InvalidOperationException", "StackTrace"

第一次通过eclipse导入github 项目,按照百度步骤进行操作,发现不能连接 github,cannot open git-upload-pack. 报错原因通过 eclipse 日志排查报错 !MESSAGE https://github.com/making/spring-boot-jersey-blank.git: cannot open git-upload-pack !STACK 0 org.eclipse.jgit.api.errors.TransportException:

使用JUnit的时候,报错:java.lang.NoClassDefFoundError: org/apache/logging/log4j/message/Message 原因是因为项目中导入的架包有冲突: 只留下中间的log4j-1.2.17.jar,上下的两个都不要了. 然后 好了

问题报错提示: selenium.common.exceptions.WebDriverException: Message: A new session could not be created. (Original error: Command failed: C:\Windows\system32\cmd.exe /s /c "D:\AutoTest\adt-bundle-windows-x86-20140702\sdk\platform-tools\adb.exe -s GWY0216A

编写代码用TFRecord数据结构存储数据集信息是报错:ValueError: Protocol message Feature has no "feature" field.或和这个错误非常类似的错误. 请检查 features=tf.train.Features(feature={...} 里面有没有单子写错.如果有一个单词写错都会报和上面类似的错误

canal使用非flatmessage方式获取mysql bin log日志发至kafka比直接发送json效率要高很多,数据发到kafka后需要实时解析为json,这里可以使用strom或者flink,公司本来就是使用strom解析,但是在吞吐量上有瓶颈,优化空间不大.所以试一试通过flink来做. 非flatmessage需要使用特定的反序列化方式来处理为Message对象,所以这里需要自定义一个类 /** * 反序列化canal binlog * * @author @ 2019-02-2

报错过程: 进入sqoop2之后, 输入命令:show connector,报错 报错现象: Exception has occurred during processing command Exception: java.lang.NoSuchMethodError Message: org.apache.hadoop.security.authentication.client.Authenticator.setConnectionConfigurator(Lorg/apache/hadoo

[版本] selenium:3.11.0 firefox:59.0.3 (64 位) python:3.6.5 [代码] #coding=utf-8 from selenium import webdriver driver = webdriver.Firefox() driver.get("http://www.baidu.com") driver.find_element_by_id("kw").send_keys("Selenium") d

Chrome浏览器控制台报错提示 Unchecked runtime.lastError: The message port closed before a response was received   Uncaught TypeError: Cannot read property 'nodeName' of null at HTMLDocument.onMouseClick 解决方案 打开chrome://extensions/,逐个关闭扩展程序查看