dwsMo2-CSDN博客

原创 JEncrypt和Java构建前后端RSA加密

代码如下<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equ...

2019-07-17 00:52:54 385

原创 StrutsPrepareAndExecuteFilter cannot be cast to javax.servlet.Filter

这个报错原本是一个简单的servlet-api包冲突的问题,但是有时候就是你明明知道结果,但总也做不对;单是按照网上的修改,还是会包这个错误,实质是项目里的其他依赖仍然使用了javax.servlet:servlet-api的依赖,需要针对排除,这里有两个命令mvn dependency:tree -Dverbose -Dincludes= 要查询冲突的包名 <groupId>:&lt...

2018-06-13 14:37:58 434

原创 Failed to find byte code for javax/annotation/processing/AbstractProcessor

android studio中使用自定义注解,部署时找不到AbstractProcessor,,单独build时无此问题,确认是未找到javax包,即使在该module下dependencies 中加入jdk下的rt.jar包又会产生其他错, 最后还是取消 instance run 解决此问题,(参考)[https://www.cnblogs.com/yana-running/p/5793539...

2018-05-16 15:34:52 4532 2

原创 docker下启动phpMyAdmin

docker容器中启动phpMyAdmin官方文档1.docker run –name myadmin -d –link mysql_db_server:db -p 8080:80 phpmyadmin/phpmyadmin 这个是使用连接其他mysql容器的方式启动 –link后跟mysql容器ip2.docker run –name myadmin -d -e PMA_HOST=...

2018-04-20 11:22:14 1620 1

原创编译openjdk8

买了深入理解java虚拟机这本书好久没看,最近有时间拿出来看,才疏学浅,第一步就难倒了,周末两天全花在配置该死的jdk7环境变量上了,试过deepin,osx,centos,ubuntu, 反正没一次顺利的,最后还是发现centos+openjdk8比较好编译,在此记录下过程.1.获取系统和源码网上有许多教程,这里就不再举例.这是我用的系统和源码地址https://pan.baid

2018-01-09 13:06:36 442

原创 The value of attribute "title" associated with an element type "question" must not contain the '<' c

xstream解析xml,生成没问题,解析老是报错,原来代码是 return (T) xstream.fromXML(new FileReader(filepath));将fileReader改成 FileInputStream,即 return (T) xstream.fromXML(new FileInputStream(filepath));就好了,还是编码的问题

2017-09-28 16:05:37 2430

原创 your MySQL server version for the right syntax to use near 'NULL' at line 1

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘NULL’ at line 1 今天使用mysql事件执行一段程序, set @deletesql =CONCAT

2016-12-20 20:52:25 13057

原创 com.alibaba.druid.pool.vendor.MySqlValidConnectionChecker - Cannot resolve com.mysq.jdbc.Connection.

com.alibaba.druid.pool.vendor.MySqlValidConnectionChecker - Cannot resolve com.mysq.jdbc.Connection.ping method. Will use ‘SELECT 1’ instead.网上查了基本都是说mysql的连接驱动版本太低,但是更换到mysql-connector-java-5.1.40-bin

2016-12-14 11:23:29 3824

原创 Table '表名' doesn't exist

多半是表不存在或者表名写错或者database选错表在打不开，重启mysql服务

2016-08-11 10:39:54 13212 1

转载 This version of MySQL doesn’t yet support ‘LIMIT & IN/ALL/ANY/SOME

select sum(level_exp) from experience where id in(select from experience order by level asc limit 5 )原因是在in中不支持limit函数，修改办法select sum(level_exp) from(select level_exp from experience order by lev

2016-08-10 16:24:28 347

dwsMo2的博客