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太平洋学习网 09-29 23浏览

SQL执行delete in条件语句时，出现“[Err] 1241 - Operand should contain 1 column(s)”错误，在Eclipse中也报了如下错误： ### Error updating database. Cause: java.sql.SQLException: Operand should contain 1 column(s) ### The error may involve co

admin 09-27 200浏览

在javaweb开发中有时候会报“No transaction aspect-managed TransactionStatus in scope”异常，什么情形下会出现这样的异常呢？ 其实原因很简单，就是我们的web项目中没有启动Springtransaction事务管理，但是我们却用了“TransactionAspectSupport.curren

admin 09-22 37浏览

This is VOA Special English VOA慢速英语听力 People across Vietnam are remembering President Tran Dai Quang. Vietnamese state media reported that Quang died Friday after a serious illness. He was 61 years o

admin 09-22 28浏览

This is VOA Special English VOA慢速英语听力 The government of U.S. President Donald Trump announced this week that it plans to limit the number of refugee arrivals in the U.S. to a record low number. But r

太平洋学习网 09-21 36浏览

This is VOA Special English英语听力 Wildlife experts are reporting increasing numbers of Atlantic bluefin tuna in the Atlantic Ocean. Atlantic bluefins are highly prized by the fishing industry. The fish c

太平洋学习网 09-20 68浏览

This is VOA Special English VOA慢速英语听力 The Indian government has approved a measure to help enforce a top court decision on a centuries old Muslim custom. The approval came after the government failed

太平洋学习网 09-19 17浏览

在生产环境中，项目日志输出是非常有必要的，日志都不知道怎么记录，你就是一个菜鸟程序员，那么，我们在javaweb项目中该如何整合logback日志输出功能呢？下面是小编在项目中使用的logback.xml配置模板，用于将java日志输出到指定的目录中，例如小编将日志输

太平洋学习网 09-19 64浏览

This is VOA Special English英语听力 Fan Bingbing is one of China’s most famous actors. She has appeared in dozens of films, television shows and advertisements in China. Around the world, she is best know

太平洋学习网 09-19 20浏览

This is VOA Special English英语听力 The leaders of South Korea and North Korea have completed their first day of talks in Pyongyang, North Korea. The visit is the third meeting between Moon Jae-in and Kim

太平洋学习网 09-18 12浏览

在Linux系统中使用cp命令复制文件的时候，有时候该文件下面还有二级，三级目录，这个时候我们使用“cp -rf aaa /etc/bbb命令将aaa下面所有的文件及文件夹全部递归复制到bbb文件夹下的时候，就会不停提示你按Y/N键，此时可以这样解决： root目录下运行如下命