<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[prader的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/prader</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; prader]]></copyright><item><title><![CDATA[Centos7 NAT 网络设置]]></title><link>https://blog.youkuaiyun.com/prader/article/details/131920345</link><guid>https://blog.youkuaiyun.com/prader/article/details/131920345</guid><author>prader</author><pubDate>Tue, 25 Jul 2023 16:36:41 +0800</pubDate><description><![CDATA[有的说ip 地址的前两节 相同就在同一个网段，比如都是 192.168   经过自己的实现，发现Vnet8的网段没必要和 主机相同，只要清楚 宿主机给vnet8 配置的网段 在 192.168.11 这个网段就行了）好啦到此为止， 有的时候就是去不同的公司或者场所办公，dns 改变导致虚拟机连接步上网络，这个时候，可以只修改vnet8 和虚拟机网络配置里面的dns。2  虚拟机的网络适配器 选择 vnet8  （我这里是通过自定义选择的，应该是可以直接选择上面的NAT， 我没有尝试，不清楚）]]></description><category></category></item><item><title><![CDATA[笔记本能连接wifi 可是显示没有网络连接]]></title><link>https://blog.youkuaiyun.com/prader/article/details/131785988</link><guid>https://blog.youkuaiyun.com/prader/article/details/131785988</guid><author>prader</author><pubDate>Tue, 18 Jul 2023 14:06:41 +0800</pubDate><description><![CDATA[把Network LightWeight Filter  勾选 去掉，就能上网了。打开WLAN 的 属性。]]></description><category></category></item><item><title><![CDATA[REDISTEMPLATE.OPSFORVALUE().GET(KEY,START, END) 中的START END 是指截取VALUE字符串的起止位置]]></title><link>https://blog.youkuaiyun.com/prader/article/details/119343290</link><guid>https://blog.youkuaiyun.com/prader/article/details/119343290</guid><author>prader</author><pubDate>Tue, 03 Aug 2021 09:46:40 +0800</pubDate><description><![CDATA[redisTemplate.opsForValue().set("aaa","aaa",10, TimeUnit.SECONDS);
        Thread.sleep(5000);
        Object aaa = redisTemplate.opsForValue().get("aaa",0, 2);
        System.out.println(aaa);

最后输出的是 aa
]]></description><category></category></item><item><title><![CDATA[debug 启动很慢------断点千万不要打在方法上]]></title><link>https://blog.youkuaiyun.com/prader/article/details/117673835</link><guid>https://blog.youkuaiyun.com/prader/article/details/117673835</guid><author>prader</author><pubDate>Mon, 07 Jun 2021 20:34:22 +0800</pubDate><description><![CDATA[今天debug 代码的时候，发现正常启动很快，可是debug的时候 很慢。我还以为是idea 出了问题，卸载重装，还是这样。在控制台查看断点的时候，发现一个断电打在了方法名那一行上，去掉之后，xian
...]]></description><category></category></item><item><title><![CDATA[Error starting ApplicationContext. To display the auto-configuration report re-run your application]]></title><link>https://blog.youkuaiyun.com/prader/article/details/100030468</link><guid>https://blog.youkuaiyun.com/prader/article/details/100030468</guid><author>prader</author><pubDate>Fri, 23 Aug 2019 09:19:53 +0800</pubDate><description><![CDATA[这是用maven给项目打包的时候报的错，出现这个错误是因为，pom 多了不必要的依赖。。

尝试除去不必要的依赖可以解决
]]></description><category></category></item><item><title><![CDATA[org.springframework.beans.BeanInstantiationException Failed to instantiate [org.springframework.http]]></title><link>https://blog.youkuaiyun.com/prader/article/details/94574992</link><guid>https://blog.youkuaiyun.com/prader/article/details/94574992</guid><author>prader</author><pubDate>Wed, 03 Jul 2019 16:44:32 +0800</pubDate><description><![CDATA[{

"timestamp": 1562141488591,

"status": 500,

"error": "Internal Server Error",

"exception": "org.springframework.beans.BeanInstantiationException",

"message": "Failed to insta...]]></description><category></category></item><item><title><![CDATA[mybatis报错org.apache.ibatis.binding.BindingException: Parameter 'code' not found. Available parameter]]></title><link>https://blog.youkuaiyun.com/prader/article/details/81567125</link><guid>https://blog.youkuaiyun.com/prader/article/details/81567125</guid><author>prader</author><pubDate>Fri, 10 Aug 2018 17:30:09 +0800</pubDate><description><![CDATA[原因是 mybatis的 mapper接口中的参数,是默认一个参数,一个对象. 多个参数时容易出问题. 需要用@Param(“””) 进行绑定

 

参考文章:https://blog.youkuaiyun.com/qq_33142257/article/details/53202443...]]></description><category></category></item><item><title><![CDATA[Caused by: java.lang.IllegalArgumentException: Result Maps collection already contains value for com]]></title><link>https://blog.youkuaiyun.com/prader/article/details/80547010</link><guid>https://blog.youkuaiyun.com/prader/article/details/80547010</guid><author>prader</author><pubDate>Sat, 02 Jun 2018 12:59:41 +0800</pubDate><description><![CDATA[这个错误是我联系springBoot整合mybatis时包的错. org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'practice': Unsatisfied dependency expressed through field 'userService...]]></description><category></category></item><item><title><![CDATA[前台ajax数据传给后台自动封装进对象中去的小知识点]]></title><link>https://blog.youkuaiyun.com/prader/article/details/80450285</link><guid>https://blog.youkuaiyun.com/prader/article/details/80450285</guid><author>prader</author><pubDate>Fri, 25 May 2018 13:13:21 +0800</pubDate><description><![CDATA[   后台接受参数用的@ResponseBody   @ResponseBody需要的是String化的json. 前台通过ajax发送json格式的字符串. 然后@ResponseBody接受.    关于映射,是只要json中的key有对应的实体(也就是value和json的key相对应),可以自动转换.完成这种转换需要其实要使用@RequestBody这个注解还需要额外配置一个Bean，也就...]]></description><category></category></item><item><title><![CDATA[tomcat 启动出错 解决办法]]></title><link>https://blog.youkuaiyun.com/prader/article/details/79094316</link><guid>https://blog.youkuaiyun.com/prader/article/details/79094316</guid><author>prader</author><pubDate>Thu, 18 Jan 2018 11:49:55 +0800</pubDate><description><![CDATA[信息: Initializing Spring root WebApplicationContextlog4j:WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader).log4j:WARN Please initialize the log4j system proper]]></description><category></category></item></channel></rss>