这是一个带有primefaces的简单应用程序，它是一个登录页面：
1-配置web.xml：
<?xml version="1.0" encoding="UTF-8"?> <web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"> <context-param> <param-name>javax.faces.PROJECT_STAGE</param-name> <param-value>Development</param-value> </context-param> <servlet> <servlet-name>Faces Servlet</servlet-name> <servlet-class>javax.faces.webapp.FacesServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>Faces Servlet</servlet-name> <url-pattern>*.xhtml</url-pattern> </servlet-mapping> <session-config> <session-timeout> 30 </session-timeout> </session-config> <welcome-file-list> <welcome-file>index.xhtml</welcome-file> </welcome-file-list> </web-app>
2-创建ManagedBean：
import javax.faces.application.FacesMessage;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
import javax.faces.context.FacesContext;
@ManagedBean
@RequestScoped
public class LoginBean {
private String username;
private String password;
public LoginBean() {
}
public void login() {
//简单登录
if (!this.username.equals("") && this.username.equals(password)) {
FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(
FacesMessage.SEVERITY_INFO, "Success", "Login with success"));
} else {
FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(
FacesMessage.SEVERITY_ERROR, "Error", "Username or password not correct"));
}
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username= username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password= password;
}
}3-创建* .xhtml页面：
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:p="http://primefaces.org/ui">
<h:head>
<title>Hello Primefaces</title>
</h:head>
<h:body>
<h:form>
<p:messages id="my_message" showDetail="true" autoUpdate="true" closable="true" />
<h:panelGrid columns="2">
<p:outputLabel value="用户名 ：" for="username"/>
<p:inputText id="username" value="#{loginBean.username}" required="true"
requiredMessage="Username is required"/>
<p:outputLabel value="密码：" for="password"/>
<p:password id="password" value="#{loginBean.password}" required="true"
requiredMessage="Password is required"/>
<span/>
<p:commandButton value="Login" actionListener="#{loginBean.login}"/>
</h:panelGrid>
</h:form>
</h:body>
</html>4-部署您的应用程序。
5打开浏览器，然后键入： http://localhost:8080/HelloPrimefaces/