Java数据库报错的相关内容

[帮助文档] Java HTTPS请求报错PKIX path building failed

Java客户端访问HTTPS站点（服务器）时，Java客户端的会试图构建一个从当前服务器证书到信任的根证书颁发机构（CA）的信任路径，如果无法成功构建这条路径，就可能抛出如下异常：javax.net.ssl.SSLHandshakeException：表示SSL/TLS握手失败。可能是由于服务器证书...

[帮助文档] 采样日志中报错为java.net.SocketException: Socket closed时的解决方案

问题现象如果压测的是HTTPS接口，同时在压测进行过程中出现RT（响应时间）逐渐变高，TPS和成功率都有跌零或者相应的趋势。这时，单击压测报告右上角的查看采样日志，单击操作列的点击查看详情，打开采样日志看到的报错如下（选择HTTP模板更清晰）。压测报告查看采样日志操作点击查看详情详细的文本参考如下。...

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[帮助文档] 常见问题JavaGC日志分析报错

1. ATP自动失败探测在使用Java GC日志分析过程中，偶尔您可能会遇到分析失败的情况，如下图所示：ATP会尝试尽可能探测分析错误，并给出失败原因和潜在解决方案，您可以点击分析细节查看：或者您也可以参考本文剩余部分尝试解决。2. 常见分析失败情况Can not recognize file fo...

[帮助文档] Dataphin如何解决创建MaxCompute自定义函数报错java.net.SocketException:Networkisunreachable(connectfailed)

问题描述创建MaxCompute自定义函数时，在代码中调用了其他API，或者有访问外部网络的操作。本地调用UDF函数正常，但是传入Dataphin注册之后，报错“java.net.SocketException: Network is unreachable (connect failed)”。问题...

[帮助文档] Dataphin管道任务同步数据报错java.lang.OutOfMemoryError:Compressedclassspace

问题描述用户使用管道任务同步数据时报错“java.lang.OutOfMemoryError: Compressed class space”。问题原因管道任务运行过程中压缩类空间溢出，默认大小1GB。解决方案创建一个shell任务，内容如下：@required_resource{required_...

java获取oracle数据库blob图片字节流显示到jsp页面出错bogus ?报错

最近在做项目时需要从oracle读取blob图片列表，显示到jsp页面上。使用以下代码实现，大部分图片显示正常，但是有些图片执行BufferedImage bis = ImageIO.read(is);会报错。求高手指教，这个问题该怎么解决？报错信息如下： javax.imageio.I...

多个java项目，操作同一个MySQL数据库 - java报错

" 现在有四个Java web项目，用的是jfinal框架，公用一个数据库，用JNDI数据源连接，tomcat配置个多系统，多个数据源，运行没有问题，但运行一晚上没人访问，第二天就卡死了，服务器必须重启，否则整个服务器都非常卡，动不了，CPU占满了，请前辈指点 tomcat配置：   fa...

win10+java+mysql5.6的编码问题,数据库报错

" 我网上也找了好久。但还是不能解决。问题是这样的：我的在DOS下，工具navicat下都可以插入中文，可是我在mybatis里xml下写一个插入中文的语句，就显示？？。环境截图如下：网上试了很多方法。都不行。上面的'variables'也只能当前命令下更改，无法永久更改。反正我java里已插入中...

java+nginx+mysql+linux 环境配置,数据库报错

" 各位牛人,出个这样的教程呗。。   哈哈。。   我知道好多人是以为它是配置方法进来的，其实。。。我是在找" ![image.png](https://ucc.alicdn.com/pic/developer-ecology/635bf83737c54a26b3fe2c11c...

java+nginx+mysql+linux 环境配置,数据库报错

" 各位牛人,出个这样的教程呗。。   哈哈。。   我知道好多人是以为它是配置方法进来的，其实。。。我是在找" ![image.png](https://ucc.alicdn.com/pic/developer-ecology/2f5c1effa73a4de399a81c7a6...

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