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参考: https://www.tutorialspoint.com/spring/spring_applicationcontext_container.htm 阅读全文
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官网: https://docs.oracle.com/javaee/7/api/javax/annotation/PostConstruct.htmlblog:https://blog.csdn.net/liguangix/article/details/80371055 阅读全文
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日志信息 https://www.slf4j.org/manual.html jar包: https://www.slf4j.org/download.html 阅读全文
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https://www.jdon.com/tags/804/15 阅读全文
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alternatives --config java 参考:https://www.cnblogs.com/xu-dong/p/6429301.html 阅读全文
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参考:https://blog.csdn.net/qq_30788949/article/details/81975954 安装 参考: https://www.cnblogs.com/shihaiming/p/5809553.html 说明: 若需要永久生效,则需要执行如下操作 vim ~/.bashrc export JAVA_HOME=/usr/soft/java/jdk1.8.... 阅读全文
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// 定义校验规则 Pattern patRule = Pattern.compile("判断规则"); // 校验结果 patRule.matcher("判断的对象").matches(); 1、秒钟、分钟、小时判断规则 String smh = "([0-9]|[1-5][0-9]|59)"; 2、日校验规则 String dayRule= "([1-9]|[1-2][2... 阅读全文
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1、官网API https://knowm.org/javadocs/sundial/org/quartz/triggers/CronExpression.html 2、判断时间是否匹配该表达式 https://www.jianshu.com/p/7a11f2b33c26 3、cron表达式详解 h 阅读全文
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参考: https://blog.csdn.net/crazycoder2010/article/details/7905848 阅读全文
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参考: https://blog.csdn.net/zh15732621679/article/details/79279608 https://blog.csdn.net/wangjun5159/article/details/47781443 阅读全文
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1、官网 http://hessian.caucho.com/#Examples 2、实际例子 https://my.oschina.net/gentlelions/blog/882065 3、springMVC集成hessian https://my.oschina.net/u/2929819/b 阅读全文
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1、数据类型 https://www.tutorialspoint.com/mysql/mysql-data-types.htm 2、int长度的意义 https://blog.csdn.net/tiansidehao/article/details/78981968 MySQL中,采集int类型元数据字段信息时,不能找到【显示长度】,解决方案: select * from informa... 阅读全文
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1、ResultSet getColumns https://docs.oracle.com/en/java/javase/11/docs/api/java.sql/java/sql/DatabaseMetaData.html#getColumns(java.lang.String,java.lang.String,java.lang.String,java.lang.String) htt... 阅读全文
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参考 :http://lxw1234.com/archives/2016/05/649.htm 阅读全文