第十一节:Thymeleaf内置对象

Posted 2023-04-17

参考技术A 一：基础对象
1.ctx: the context object  
    ctx对象继承org.thymeleaf.context.IContext或者org.thymeleaf.context.IWebContext，取决于当前环境是不是web环境。
    如果程序集成了spring，那么将会是org.thymeleaf.spring[3|4].context.SpringWebContext
    #org.thymeleaf.context.IContext
    $#ctx.locale
    $#ctx.variables
    #org.thymeleaf.context.IWebContext
    $#ctx.applicationAttributes
    $#ctx.httpServletRequest
    $#ctx.httpServletResponse
    $#ctx.httpSession
    $#ctx.requestAttributes
    $#ctx.requestParameters
    $#ctx.servletContext
    $#ctx.sessionAttributes
2.vars: the context variables
    访问VariablesMap所有上下文中的变量
    #org.thymeleaf.context.VariablesMap
    $#vars.get('foo')
    $#vars.containsKey('foo')
    $#vars.size()
3.locale: the context locale
    java.util.Locale对象的访问
4.request: (only in Web Contexts) the HttpServletRequest object
5.response: (only in Web Contexts) the HttpServletResponse object
6.session: (only in Web Contexts) the HttpSession object( 需要contoller/action(HttpSession session) )
7.servletContext: (only in Web Contexts) the ServletContext object
二：web环境对象
1.#httpServletRequest :javax.servlet.http.HttpServletRequest对象实例
    $#httpServletRequest.getAttribute('foo')
    $#httpServletRequest.getParameter('foo')
    $#httpServletRequest.getContextPath()
    $#httpServletRequest.getRequestName()
2.#httpSession( 需要contoller/action(HttpSession session) )
    $#httpSession.getAttribute('foo')
    $#httpSession.id
    $#httpSession.lastAccessedTime
三：spring环境对象
    #themes : 提供和“ spring:theme JSP tag.”同样的功能。
    $#themes.code('foo')
四：web环境中访问request/session等属性
    1.param :获取请求的参数.
        $param.foo // Retrieves a String[] with the values of request parameter 'foo'
        $param.size()
        $param.isEmpty()
        $param.containsKey('foo')
    2.session:访问session属性
        $session.foo // Retrieves the session atttribute 'foo'
        $session.size()
        $session.isEmpty()
        $session.containsKey('foo')
    3.application：获取应用程序/ servlet上下文属性
        $application.foo // Retrieves the ServletContext atttribute 'foo'
        $application.size()
        $application.isEmpty()
        $application.containsKey('foo')
五：直接访问spring注册对象
    <div th:text="$@authService.getUserName()">... 
六：示例

centos mysql 优化 第十一节课

centos mysql  优化  第十一节课

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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