备忘

1.windows下启动jar程序

新建run.bat　　

javaw -jar %1

设置jar的打开方式为run.bat

2.windows下tomcat端口被占用

netstat -ano|findstr 8080

taskkill /pid 7188 /f

3.oracle字段名查表

--通过表名查表
select * from user_tab_comments where comments like '%%'

select * from user_tab_comments where table_name like '%%'

--通过字段名查表
select * from user_col_comments where comments like '%%'

select * from user_col_comments where table_name like '%%'

4.java post请求返回的json结果中文乱码

// read也要写编码
InputStreamReader isr = new InputStreamReader(conn.getInputStream(),"utf-8");

5.两个spring boot项目放在同一个tomcat下，第二个会启动失败

在SpringBoot项目中配置文件加上
spring.jmx.enabled=false

 

 

 

 

 

 

 

 

 

6.WinForm's Control The Save Section Size Setting // Window area is a collection of pixels within the window to be drawn in it. The operating system does not display any part of the window outside the window area. The coordinates of the control area relative to the upper left corner of the control, not the workspace of the control. THIS.REGON = New Region (New Rectangle (0, 0, THIS.WIDTH, THIS.HEIGHT + 100));