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    <p>You can use j_security_check. All you do is post to it, and it will handle authentication based on the realm you've defined, and the application-specific configuration in your web.xml. </p> <p>Depending on your app server, there is an additional step of linking the defined role (app-specific) to a group (realm-specific).</p> <p>Here is a typical configuration:</p> <pre><code>&lt;servlet&gt; &lt;servlet-name&gt;Login&lt;/servlet-name&gt; &lt;servlet-class&gt;com.example.Login&lt;/servlet-class&gt; &lt;/servlet&gt; &lt;servlet-mapping&gt; &lt;servlet-name&gt;Login&lt;/servlet-name&gt; &lt;url-pattern&gt;/Login&lt;/url-pattern&gt; &lt;/servlet-mapping&gt; &lt;servlet&gt; &lt;servlet-name&gt;Error&lt;/servlet-name&gt; &lt;servlet-class&gt;com.example.Error&lt;/servlet-class&gt; &lt;/servlet&gt; &lt;servlet-mapping&gt; &lt;servlet-name&gt;Error&lt;/servlet-name&gt; &lt;url-pattern&gt;/Error&lt;/url-pattern&gt; &lt;/servlet-mapping&gt; &lt;login-config&gt; &lt;auth-method&gt;FORM&lt;/auth-method&gt; &lt;realm-name&gt;example.com&lt;/realm-name&gt; &lt;form-login-config&gt; &lt;form-login-page&gt;/Login&lt;/form-login-page&gt; &lt;form-error-page&gt;/Error&lt;/form-error-page&gt; &lt;/form-login-config&gt; &lt;/login-config&gt; &lt;security-role&gt; &lt;role-name&gt;arbitraryRoleName&lt;/role-name&gt; &lt;/security-role&gt; &lt;security-constraint&gt; &lt;web-resource-collection&gt; &lt;web-resource-name&gt;All Pages&lt;/web-resource-name&gt; &lt;url-pattern&gt;/index.xhtml&lt;/url-pattern&gt; &lt;/web-resource-collection&gt; &lt;auth-constraint&gt; &lt;role-name&gt;arbitraryRoleName&lt;/role-name&gt; &lt;/auth-constraint&gt; &lt;/security-constraint&gt; </code></pre> <p>Note the <code>security-role</code>. This still needs linked into a group, or whatever you are defining to differentiate users that can use a page from users who can't.</p>
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    1. USZack Marrapese
    1. USZack Marrapese
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    1. COThanks a lot, Zack. Is there no other way but to use j_security_check? I know that there is a class with login and logout methods which I could use but don't remember the name of it.
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