how to read querystring value via Managed Bean in jsf1.1

How to read query string value via managed bean in jsf1.1开发者_JAVA技巧

I am not sure how the answer of Bozho didn't work for you, but regardless of this, I would suggest to let JSF do all the work rather than getting the "raw" HttpServletRequest from under the JSF hoods inside a bean. Make use of the JSF managed property facility.

First, add two properties to the bean: confirmuser and emailid, of course with getters and setters. Then, define them as managed properties in faces-config.xml wherein they are to be filled with #{param.confirmuser} and #{param.emailid}. You probably already know, the #{param} points to the request parameter map.

E.g.

<managed-bean>
    <managed-bean-name>userManager</managed-bean-name>
    <managed-bean-class>com.example.UserManager</managed-bean-class>
    <managed-bean-scope>request</managed-bean-scope>
    <managed-property>
        <property-name>confirmuser</property-name>
        <value>#{param.confirmuser}</value>
    </managed-property>
    <managed-property>
        <property-name>emailid</property-name>
        <value>#{param.emailid}</value>
    </managed-property>
</managed-bean>

This way JSF will automatically set the bean properties with those values.

String queryString = ((HttpServletRequest) FacesContext.getCurrentContext()
       .getExternalContext().getRequest()).getQueryString();

Put this in the action method or a phase listener where you need it. Don't put it in constructor.

You can accomplish this by passing the query string params as <f:param /> values inside your command button.

For example, given the following URL (i.e. a user clicked this in an e-mail, thus no backing-bean code has been executed yet):

http://localhost:8080/webapp/resetPassword.xhtml?uuid=3d7844ba-5f4b-4de0-9595-fdcbdedad4dc&code=a2JITmEyamJhQ29HTVhyaHhhNnRqdXI3T1kyMldydU4=

Your JSF code:

<h:commandButton action="#{resetPasswordController.doActualReset}" value="Submit">
    <f:param name="code" 
        value="#{param.code}" />
    <f:param name="uuid"
        value="#{param.uuid}" />
</h:commandButton>

BackingBean:

public String doActualReset() {

    FacesContext context = FacesContext.getCurrentInstance();
    Map<String, String> requestMap = context.getExternalContext().getRequestParameterMap();
    String code = (String) requestMap.get("code");
    String uuid = (String) requestMap.get("uuid");
    ...
}

Caveat: This was tested in JSF 2, but should work in 1.1. There's nothing here that is 2.x specific.