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官方文档https://arthas.aliyun.com/doc/index.html下载$ curl -O https://arthas.aliyun.com/arthas-boot.jartrace入门启动项目启动arthas$ java -jar arthas-boot.jar选择threadtrace命令trace package.class method '#cost>100'访问接口...

PDF split <dependency> <groupId>org.apache.pdfbox</groupId> <artifactId>pdfbox</artifactId> <version>2.0.21</version> </dependency> <dependency> <groupId>org.apache.pdf

WeekEnumpackage enumtest;import java.util.HashMap;import java.util.Map;public enum WeekEnum { SUNDAY(1, "周日"), MONDAY(2, "周一"), TUESDAY(3, "周二"), WEDNESDAY(4, "周三"), THURSD...