!(https://oscimg.oschina.net/oscnet/95c5fd181219e0392b36e1cb64bfac4d454.jpg)阿里妹导读：2019年4月，AlibabaCloudLinux2(AliyunLinux2)正式开源。时至今日，已经走过三个月的里程。在这段时间内，这个刚诞生不久的为阿里云ECS

HiveServer2支持多种认证方式，通过hive.server2.authentication参数来设置，包括nosasl,none,ldap,kerberos,pam,custom本文介绍如何在EMapReduce中使用LDAP配置HiveServer的认证。配置配置值备注hive.server2.au

本文源码：GitHub·点这里(https://www.oschina.net/action/GoToLink?urlhttps%3A%2F%2Fgithub.com%2Fcicadasmile%2Fmiddlewareparent)||GitEE·点这里(https://gitee.com/cicadasmile/middleware

GitHub地址(https://www.oschina.net/action/GoToLink?urlhttps%3A%2F%2Fgithub.com%2Fweizongwu%2FSpringCloudOAuth2SpringSecurityFrame.git"项目地址")码云地址(https://gitee.com/wujishu/

后台页面：List<Map<String,StringlistsaleService.getSaleAndBuyer();StringBufferdateArraynewStringBuffer();StringBuffersaleArraynewStringBuffer();StringBufferbuyerA

虽然操作并不难，但用到的各种命令，各种坑的解决方法还需要记一下建好的博客:念诗之人的博客(https://www.oschina.net/action/GoToLink?urlhttps%3A%2F%2Fsakurablossom.cn)VPS和域名选购VPS选购国内外有很多商家可供选择，国内有如阿里云，百度云，腾讯云

Springboot项目的pom里引入的parent<parent<groupIdorg.springframework.boot</groupId<artifactIdspringbootstarterparent</artifactId<version2.0.0.RELE

地址传值@PathVariable获取路径参数。即url/{id}这种形式。?传值@RequestParam获取查询参数。即url?name这种形式用注解@RequestParam绑定请求参数到方法入参当请求参数username不存在时会有异常发生,可以通过设置属性requiredfalse解决,例如:@R

db2命令(https://www.oschina.net/action/GoToLink?urlhttp%3A%2F%2Fe066202152006.blog.163.com%2Fblog%2Fstatic%2F2291284820161018115259423%2F)DB2开启监控(https://www.oschina.net/actio

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