Java – JSF inputtext and sessions in JSF managed beans

I want to know how to read the value of the input text from the managed bean

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<h:inputText id="username" value="#{mylogin.username}" required="true" />

But if I say I have a value like this @ H_ 502_ 9@

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<h:inputText id="username" value="some_value" required="true" />

I want to read this "some_value" in my managed bean Is it possible@ H_ 502_ 9@

Another question is whether session variables in managed beans can be accessed, or should they be passed there in some way@ H_ 502_ 9@

Solution

In the latter case, some_ With all due respect, value is not managed by beans Nevertheless, you can read To do such a thing,

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FacesContext ctx = FacesContext.getCurrentInstance();
HttpServletRequest request =
      (HttpServletRequest)ctx.getExternalContext().getRequest(); 
request.getParameter("username");

Similarly, for accessing session variables, @ h_ 502_ 9@

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FacesContext ctx = FacesContext.getCurrentInstance();
HttpServletRequest request =
      (HttpServletRequest)ctx.getExternalContext().getSession(false);