Spring MVC登录实例

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我是靠谱客的博主精明香氛，最近开发中收集的这篇文章主要介绍Spring MVC登录实例，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

工程目录结构：
在这里插入图片描述
导入jar：

controllers.LoginController.java

package controllers;

import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import domain.*;
import model.Login;

@Controller
@RequestMapping("/user")
public class LoginController {
	@RequestMapping(value = "/login", method = RequestMethod.POST)
	public ModelAndView checkUser(User u) {
		Login login = new Login();
		ModelAndView mv = new ModelAndView();
		if (login.verify(u.getUsername(), u.getPwd(), u.getCla().getClassName())) {
			mv.setViewName("loginSuccess");
			mv.addObject("username", u.getUsername());
		} else
			mv.setViewName("loginFailed");
		return mv;
	}
}

domain.Classes.java

package domain;

public class Classes {
	private String className;

	public String getClassName() {
		return className;
	}

	public void setClassName(String className) {
		this.className = className;
	}
}

domain.User.java

package domain;

import domain.Classes;
public class User {
	private String username;
	private String pwd;
	private Classes cla;
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public String getPwd() {
		return pwd;
	}
	public void setPwd(String pwd) {
		this.pwd = pwd;
	}
	public Classes getCla() {
		return cla;
	}
	public void setCla(Classes cla) {
		this.cla = cla;
	}
}

model.Login.java

package model;

public class Login {
	public boolean verify(String username, String password, String classname) {
		if (username.equals("zlm") && password.equals("123") && classname.equals("jk1702"))
			return true;
		else
			return false;
	}
}

spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
						http://www.springframework.org/schema/beans/spring-beans.xsd
						http://www.springframework.org/schema/context 
						http://www.springframework.org/schema/context/spring-context-4.0.xsd
						http://www.springframework.org/schema/mvc 
						http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
	<!-- 默认的注解映射的支持 -->
	<mvc:annotation-driven />

	<!-- 开启Controller注解支持 配置自定扫描的包 -->
	<context:component-scan base-package="controllers" />

	<!-- 配置视图解析器: 返回值解析为实际的物理视图 -->
	<bean
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/jsp/"></property>
		<property name="suffix" value=".jsp"></property>
	</bean>
</beans>

jsp.loginFailed.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Login Failed</title>
</head>
<body>
	<h3>Username or password or class error!</h3>
</body>
</html>

jsp.loginSuccess.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Login Success</title>
</head>
<body>
	<h3>Congratulations!</h3>
	<p>User ${requestScope.username} login Success!</p>
</body>
</html>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://java.sun.com/xml/ns/javaee"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
	id="WebApp_ID" version="3.0">
	<display-name>Spring-MVC</display-name>
	<welcome-file-list>
		<welcome-file>index.html</welcome-file>
		<welcome-file>index.htm</welcome-file>
		<welcome-file>index.jsp</welcome-file>
		<welcome-file>default.html</welcome-file>
		<welcome-file>default.htm</welcome-file>
		<welcome-file>default.jsp</welcome-file>
	</welcome-file-list>
	<filter>
		<filter-name>encodingFilter</filter-name>
		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>UTF-8</param-value>
		</init-param>
		<init-param>
			<param-name>forceEncoding</param-name>
			<param-value>true</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>encodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	<servlet>
		<servlet-name>springmvc</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:spring-mvc.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>springmvc</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
</web-app>

login.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Login Page</title>
</head>
<body>
	<form action="user/login" method="post">
		Username:<input type="text" name="username" /><br/> 
		Password:<input type="password" name="pwd" /> <br/>
		Class:<input type="text" name="cla.className" /><br/>
		<input type="submit" value="Login" />
	</form>
</body>
</html>