如何自定义JSTL标签 1.创建一个类,从SimpleTagSupport继承 A) 通过继承可以获得当前JSP页面上的对象,如JspContext I) 实际上可以强转为PageContext II) 通过PageContext可以拿到HttpServletRequest等对象 B) 通过JspContext可以获取输出流,向页面上输出内容(文字/HTML标签) C) 重写doTage()方法实现标签的内部逻辑 2.在tld(标签库描述)文件中添加<tag>标签 A) 如果tld还没有,则从…
使用AFNetworking 框架 解析数据 报错提示数据请求失败Error Domain=NSCocoaErrorDomain Code=3840 "The operation couldn’t be completed. (Cocoa error 3840.)" (JSON text did not start with array or object and option to allow fragments not set.) UserInfo=0x9b7eba0 {NSDeb…
###oracle dg 报错提示 涉及硬盘错误 Dec 23 03:28:01 xhisdg rsyslogd: [origin software="rsyslogd" swVersion="5.8.10" x-pid="4554" x-info="http://www.rsyslog.com"] rsyslogd was HUPed Dec 23 03:28:03 xhisdg rhsmd: In order for Su…
输入: git pull origin master git报错提示 fatal: 'origin' does not appear to be a git repository fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists. 在网上找到的解决办法:重新输入一次: git remote add…