使用JavaConfig的SpringMVC4 + Spring Data JPA + SpringSecurity配置

万阳嘉

2023-12-01

在本文中，我们将看到如何使用JavaConfig配置和集成SpringMVC4，带有Hibernate的Spring Data JPA和SpringSecurity。

1.首先让我们在pom.xml中配置所有必要的依赖项

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.sivalabs</groupId>
	<artifactId>spring-javaconfig</artifactId>
	<version>1.0</version>
	<packaging>war</packaging>
	<name>SpringApp JavaConfig Demo</name>
	
	<properties>
		<java.version>1.7</java.version>
		<junit.version>4.11</junit.version>
		<slf4j.version>1.7.5</slf4j.version>
		<logback.version>1.0.13</logback.version>
		<spring.version>4.0.0.RELEASE</spring.version>
		<spring-data-jpa.version>1.4.1.RELEASE</spring-data-jpa.version>
		<spring-security.version>3.2.0.RELEASE</spring-security.version>
		<hibernate.version>4.2.6.Final</hibernate.version>
		<aspectj.version>1.7.2</aspectj.version>
		<mysql.version>5.1.26</mysql.version>
		<jackson-json.version>2.3.1</jackson-json.version>
		<commons-dbcp.version>1.2.2</commons-dbcp.version>
		<commons-lang3.version>3.1</commons-lang3.version>
	</properties>
	
	<build>
		<finalName>${project.artifactId}</finalName>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.1</version>
				<configuration>
					<source>${java.version}</source>
					<target>${java.version}</target>
				</configuration>
			</plugin>
		</plugins>
	</build>

	<dependencies>
	<!-- Logging dependencies -->
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>jcl-over-slf4j</artifactId>
			<version>${slf4j.version}</version>
		</dependency>

		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
			<version>${slf4j.version}</version>
		</dependency>

		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-log4j12</artifactId>
			<version>${slf4j.version}</version>
		</dependency>
		
		<dependency>
			<groupId>ch.qos.logback</groupId>
			<artifactId>logback-classic</artifactId>
			<version>${logback.version}</version>
		</dependency>		

		<!-- Spring dependencies -->

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context-support</artifactId>
			<exclusions>
				<exclusion>
					<groupId>commons-logging</groupId>
					<artifactId>commons-logging</artifactId>
				</exclusion>
			</exclusions>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
		</dependency>
		<!-- Spring Data JPA dependencies -->
		
		<dependency>
			<groupId>org.springframework.data</groupId>
			<artifactId>spring-data-jpa</artifactId>
			<version>${spring-data-jpa.version}</version>
		</dependency>

		<dependency>
			<groupId>org.hibernate</groupId>
			<artifactId>hibernate-entitymanager</artifactId>
			<version>${hibernate.version}</version>
		</dependency>
		
		<!-- SpringSecurity dependencies -->
		<dependency>
			<groupId>org.springframework.security</groupId>
			<artifactId>spring-security-core</artifactId>
			<version>${spring-security.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.security</groupId>
			<artifactId>spring-security-web</artifactId>
			<version>${spring-security.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.security</groupId>
			<artifactId>spring-security-config</artifactId>
			<version>${spring-security.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.security</groupId>
			<artifactId>spring-security-taglibs</artifactId>
			<version>${spring-security.version}</version>
		</dependency>	
		
		<dependency>
			<groupId>org.aspectj</groupId>
			<artifactId>aspectjweaver</artifactId>
			<version>${aspectj.version}</version>
		</dependency>
		<dependency>
			<groupId>org.aspectj</groupId>
			<artifactId>aspectjrt</artifactId>
			<version>${aspectj.version}</version>
		</dependency>	

		<!-- Testing dependencies -->
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>${junit.version}</version>
			<scope>test</scope>
		</dependency>		

		<!-- DB dependencies -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>${mysql.version}</version>
		</dependency>
				
		<dependency>
			<groupId>commons-dbcp</groupId>
			<artifactId>commons-dbcp</artifactId>
			<version>${commons-dbcp.version}</version>
		</dependency>
				
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-databind</artifactId>
			<version>${jackson-json.version}</version>
		</dependency>
		
		<dependency>
		    <groupId>javax.mail</groupId>
		    <artifactId>mail</artifactId>
		    <version>1.4.3</version>
	    </dependency>
	    
		<!-- Web dependencies -->
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>javax.servlet-api</artifactId>
			<version>3.0.1</version>
			<scope>provided</scope>
		</dependency>

		<dependency>
			<groupId>taglibs</groupId>
			<artifactId>standard</artifactId>
			<version>1.1.2</version>
			<scope>compile</scope>
		</dependency>
		<dependency>
			<groupId>jstl</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
			<scope>compile</scope>
		</dependency>
	</dependencies>

	<dependencyManagement>
		<dependencies>
			<dependency>
				<groupId>org.springframework</groupId>
				<artifactId>spring-framework-bom</artifactId>
				<version>${spring.version}</version>
				<type>pom</type>
				<scope>import</scope>
			</dependency>		
		</dependencies>
	</dependencyManagement>
	
</project>

2.在application.properties中配置数据库连接属性和电子邮件设置

################### DataSource Configuration ##########################

jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/test
jdbc.username=root
jdbc.password=admin

init-db=false

################### Hibernate Configuration ##########################

hibernate.dialect=org.hibernate.dialect.MySQLDialect
hibernate.show_sql=true
hibernate.hbm2ddl.auto=update

################### JavaMail Configuration ##########################
smtp.host=smtp.gmail.com
smtp.port=465
smtp.protocol=smtps
smtp.username=sivaprasadreddy.k@gmail.com
smtp.password=
support.email=sivaprasadreddy.k@gmail.com

3.在com.sivalabs.springapp.config.AppConfig.java中配置公共服务层bean，例如PropertySourcesPlaceholderConfigurer和JavaMailSender等。

package com.sivalabs.springapp.config;

import java.util.Properties;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.concurrent.ConcurrentMapCacheManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
import org.springframework.context.annotation.FilterType;
import org.springframework.context.annotation.PropertySource;
import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
import org.springframework.core.env.Environment;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.scheduling.annotation.EnableScheduling;

@Configuration
@ComponentScan(basePackages={"com.sivalabs.springapp"},
		excludeFilters=@ComponentScan.Filter(type=FilterType.REGEX, pattern={"com.sivalabs.springapp.web.*"}))
@PropertySource(value = { "classpath:application.properties" })
@EnableScheduling
@EnableAspectJAutoProxy
@EnableCaching
public class AppConfig 
{
	@Autowired
	private Environment env;

	@Bean
	public static PropertySourcesPlaceholderConfigurer placeHolderConfigurer()
	{
		return new PropertySourcesPlaceholderConfigurer();
	}
	
	@Bean
	public JavaMailSenderImpl javaMailSenderImpl() {
		JavaMailSenderImpl mailSenderImpl = new JavaMailSenderImpl();
		mailSenderImpl.setHost(env.getProperty("smtp.host"));
		mailSenderImpl.setPort(env.getProperty("smtp.port", Integer.class));
		mailSenderImpl.setProtocol(env.getProperty("smtp.protocol"));
		mailSenderImpl.setUsername(env.getProperty("smtp.username"));
		mailSenderImpl.setPassword(env.getProperty("smtp.password"));

		Properties javaMailProps = new Properties();
		javaMailProps.put("mail.smtp.auth", true);
		javaMailProps.put("mail.smtp.starttls.enable", true);

		mailSenderImpl.setJavaMailProperties(javaMailProps);

		return mailSenderImpl;
	}
		
	@Bean
	public CacheManager cacheManager()
	{
		return new ConcurrentMapCacheManager();
	}
}

观察到我们已经使用新的REGEX excludeFilter类型从组件扫描中排除了软件包“ com.sivalabs.springapp.web。* ”。

如果我们不排除与Web相关的软件包，并尝试对服务层bean运行JUnit测试，我们将遇到以下异常：

java.lang.IllegalArgumentException：需要ServletContext来配置默认的Servlet处理

还要注意，我们已经使用@EnableCaching启用了缓存，因此我们应该声明CacheManager bean。

4.在com.sivalabs.springapp.config.PersistenceConfig.java中配置持久层bean，如下所示：

package com.sivalabs.springapp.config;

import java.util.Properties;
import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;
import org.apache.commons.dbcp.BasicDataSource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.core.io.ClassPathResource;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.instrument.classloading.InstrumentationLoadTimeWeaver;
import org.springframework.jdbc.datasource.init.DataSourceInitializer;
import org.springframework.jdbc.datasource.init.ResourceDatabasePopulator;
import org.springframework.orm.hibernate4.HibernateExceptionTranslator;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(basePackages="com.sivalabs.springapp.repositories")
public class PersistenceConfig 
{
	@Autowired
	private Environment env;

	@Value("${init-db:false}")
	private String initDatabase;
	
	@Bean
	public PlatformTransactionManager transactionManager()
	{
		EntityManagerFactory factory = entityManagerFactory().getObject();
		return new JpaTransactionManager(factory);
	}

	@Bean
	public LocalContainerEntityManagerFactoryBean entityManagerFactory()
	{
		LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();

		HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
		vendorAdapter.setGenerateDdl(Boolean.TRUE);
		vendorAdapter.setShowSql(Boolean.TRUE);

		factory.setDataSource(dataSource());
		factory.setJpaVendorAdapter(vendorAdapter);
		factory.setPackagesToScan("com.sivalabs.springapp.entities");

		Properties jpaProperties = new Properties();
		jpaProperties.put("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
		factory.setJpaProperties(jpaProperties);

		factory.afterPropertiesSet();
		factory.setLoadTimeWeaver(new InstrumentationLoadTimeWeaver());
		return factory;
	}

	@Bean
	public HibernateExceptionTranslator hibernateExceptionTranslator()
	{
		return new HibernateExceptionTranslator();
	}
	
	@Bean
	public DataSource dataSource()
	{
		BasicDataSource dataSource = new BasicDataSource();
		dataSource.setDriverClassName(env.getProperty("jdbc.driverClassName"));
		dataSource.setUrl(env.getProperty("jdbc.url"));
		dataSource.setUsername(env.getProperty("jdbc.username"));
		dataSource.setPassword(env.getProperty("jdbc.password"));
		return dataSource;
	}
	
	@Bean
	public DataSourceInitializer dataSourceInitializer(DataSource dataSource) 
	{
		DataSourceInitializer dataSourceInitializer = new DataSourceInitializer();
		dataSourceInitializer.setDataSource(dataSource);
		ResourceDatabasePopulator databasePopulator = new ResourceDatabasePopulator();
		databasePopulator.addScript(new ClassPathResource("db.sql"));
		dataSourceInitializer.setDatabasePopulator(databasePopulator);
		dataSourceInitializer.setEnabled(Boolean.parseBoolean(initDatabase));
		return dataSourceInitializer;
	}	
}

在这里，我们使用Hibernate实现配置了DataSource和JPA EntityManagerFactory bean。

此外，我们还配置了DataSourceInitializer bean来初始化并使用种子数据填充表。我们可以通过更改application.properties中的init-db属性值来启用/禁用执行此db.sql脚本。

最后，我们使用@EnableJpaRepositories启用了Spring Data JPA仓库扫描，以扫描JPA仓库接口的“ com.sivalabs.springapp.repositories ”包。

5.现在，让我们在com.sivalabs.springapp.web.config.WebMvcConfig.java中配置与Web相关的bean

package com.sivalabs.springapp.web.config;

import java.util.Properties;
import org.springframework.context.MessageSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.ReloadableResourceBundleMessageSource;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.handler.SimpleMappingExceptionResolver;
import org.springframework.web.servlet.view.InternalResourceViewResolver;


@Configuration
@ComponentScan(basePackages = { "com.sivalabs.springapp.web"}) 
@EnableWebMvc
public class WebMvcConfig extends WebMvcConfigurerAdapter
{
	@Override
	public void addViewControllers(ViewControllerRegistry registry)
	{
		super.addViewControllers(registry);
		registry.addViewController("login/form").setViewName("login");		
		registry.addViewController("welcome").setViewName("welcome");
		registry.addViewController("admin").setViewName("admin");
	}

	@Bean
	public ViewResolver resolver()
	{
		InternalResourceViewResolver url = new InternalResourceViewResolver();
		url.setPrefix("/WEB-INF/jsp/");
		url.setSuffix(".jsp");
		return url;
	}

	@Override
	public void addResourceHandlers(ResourceHandlerRegistry registry)
	{
		registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
	}

	@Override
	public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer)
	{
		configurer.enable();
	}

	@Bean(name = "messageSource")
	public MessageSource configureMessageSource()
	{
		ReloadableResourceBundleMessageSource messageSource = new ReloadableResourceBundleMessageSource();
		messageSource.setBasename("classpath:messages");
		messageSource.setCacheSeconds(5);
		messageSource.setDefaultEncoding("UTF-8");
		return messageSource;
	}

	@Bean
	public SimpleMappingExceptionResolver simpleMappingExceptionResolver()
	{
		SimpleMappingExceptionResolver b = new SimpleMappingExceptionResolver();
		Properties mappings = new Properties();
		mappings.put("org.springframework.dao.DataAccessException", "error");
		b.setExceptionMappings(mappings);
		return b;
	}
}

6.使用AbstractAnnotationConfigDispatcherServletInitializer便利类配置DispatcherService。

package com.sivalabs.springapp.web.config;

import javax.servlet.Filter;
import org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter;
import org.springframework.web.filter.DelegatingFilterProxy;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
import com.sivalabs.springapp.config.AppConfig;

public class SpringWebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer
{

	@Override
	protected Class<?>[] getRootConfigClasses()
	{
		return new Class<?>[] { AppConfig.class};
	}

	@Override
	protected Class<?>[] getServletConfigClasses()
	{
		return new Class<?>[] { WebMvcConfig.class };
	}

	@Override
	protected String[] getServletMappings()
	{
		return new String[] { "/" };
	}

	@Override
    protected Filter[] getServletFilters() {
       return new Filter[]{ 
							new OpenEntityManagerInViewFilter()
						  };
    }

}

这里需要注意的几件事是我们将AppConfig.class配置为RootConfig类，将WebMvcConfig.class配置为ServletConfigClasses，这与我们使用ContextLoaderListener和DispatcherServlet的contextConfigLocation在web.xml中进行配置的方式类似。

另外，我们已经注册了OpenEntityManagerInViewFilter，以允许在视图呈现阶段延迟加载JPA实体图。

7.让我们配置SpringSecurity。

首先，让我们创建一个SecurityUser类，该类扩展了我们特定于应用程序的User类并实现了org.springframework.security.core.userdetails.UserDetails 。

package com.sivalabs.springapp.web.config;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Set;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import com.sivalabs.springapp.entities.Role;
import com.sivalabs.springapp.entities.User;

public class SecurityUser extends User implements UserDetails
{

	private static final long serialVersionUID = 1L;
	public SecurityUser(User user) {
		if(user != null)
		{
			this.setId(user.getId());
			this.setName(user.getName());
			this.setEmail(user.getEmail());
			this.setPassword(user.getPassword());
			this.setDob(user.getDob());
			this.setRoles(user.getRoles());
		}		
	}
	
	@Override
	public Collection<? extends GrantedAuthority> getAuthorities() {
		
		Collection<GrantedAuthority> authorities = new ArrayList<>();
		Set<Role> userRoles = this.getRoles();
		
		if(userRoles != null)
		{
			for (Role role : userRoles) {
				SimpleGrantedAuthority authority = new SimpleGrantedAuthority(role.getRoleName());
				authorities.add(authority);
			}
		}
		return authorities;
	}

	@Override
	public String getPassword() {
		return super.getPassword();
	}

	@Override
	public String getUsername() {
		return super.getEmail();
	}

	@Override
	public boolean isAccountNonExpired() {
		return true;
	}

	@Override
	public boolean isAccountNonLocked() {
		return true;
	}

	@Override
	public boolean isCredentialsNonExpired() {
		return true;
	}

	@Override
	public boolean isEnabled() {
		return true;
	}	
}

我们将实现一个自定义的UserDetailsService并使用Spring Data JPA存储库加载用户详细信息。

package com.sivalabs.springapp.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Component;
import com.sivalabs.springapp.entities.User;
import com.sivalabs.springapp.services.UserService;
import com.sivalabs.springapp.web.config.SecurityUser;

@Component
public class CustomUserDetailsService implements UserDetailsService
{
	@Autowired
	private UserService userService;
	
	@Override
	public UserDetails loadUserByUsername(String userName)
			throws UsernameNotFoundException {
		User user = userService.findUserByEmail(userName);
		if(user == null){
			throw new UsernameNotFoundException("UserName "+userName+" not found");
		}
		return new SecurityUser(user);
	}
}

现在创建com.sivalabs.springapp.config.SecurityConfig.java ，其中包含与SpeingSecurity相关的bean定义。

package com.sivalabs.springapp.config;

import javax.sql.DataSource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
//import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.UserDetailsService;


@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter
{
	@Autowired
	private DataSource dataSource;

	@Autowired
	private CustomUserDetailsService customUserDetailsService;

	@Override
    protected void configure(AuthenticationManagerBuilder registry) throws Exception {
		/*
        registry
        .inMemoryAuthentication()
        .withUser("siva")
          .password("siva")
          .roles("USER")
          .and()
        .withUser("admin")
          .password("admin")
          .roles("ADMIN","USER");
        */
        
        //registry.jdbcAuthentication().dataSource(dataSource);
		registry.userDetailsService(customUserDetailsService);
    }


	  @Override
	  public void configure(WebSecurity web) throws Exception {
	    web
	      .ignoring()
	         .antMatchers("/resources/**");
	  }

	  @Override
	  protected void configure(HttpSecurity http) throws Exception {
	    http
	    .csrf().disable()
	    .authorizeRequests()
	        .antMatchers("/login","/login/form**","/register","/logout").permitAll()
	        .antMatchers("/admin","/admin/**").hasRole("ADMIN")
	        .anyRequest().authenticated()
	        .and()
	    .formLogin()
	        .loginPage("/login/form")
	        .loginProcessingUrl("/login")
	        .failureUrl("/login/form?error")
	        .permitAll();
	  }
}

根据我们的SpringSecurity自定义表单登录配置，我们将在login.jsp中使用以下登录表单。

<!DOCTYPE html>
<%@taglib uri="http://www.springframework.org/tags"  prefix="spring"%>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form" %>
<%@ taglib prefix="sec" uri="http://www.springframework.org/security/tags" %>
<%@ taglib uri="http://java.sun.com/jstl/core_rt" prefix="c" %>
<c:url var="rootURL" value="/"/>
<html>
<head>
<title>Login</title>
<link href="${rootURL}resources/bootstrap/css/bootstrap.css" media="screen" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="${rootURL}resources/jquery/jquery-1.10.2.js"></script>
<script type="text/javascript" src="${rootURL}resources/bootstrap/js/bootstrap.js"></script>
<script type="text/javascript" src="${rootURL}resources/js/app.js"></script>
</head>
<body>
		<div class="col-md-6 col-md-offset-2">	
		<c:if test="${param.error != null}">
             <div class="alert alert-danger">
                 Invalid UserName and Password.
             </div>
         </c:if>
         <c:if test="${param.logout != null}">
             <div class="alert alert-success">
                 You have been logged out.
             </div>
         </c:if>	
         </div>  
            
     <div class="row">
		<div class="col-md-6 col-md-offset-2">	
			<h2>User Login Form</h2>
			<form:form id="loginForm" method="post" action="${rootURL}login" modelAttribute="user" 
		class="form-horizontal" role="form" cssStyle="width: 800px; margin: 0 auto;">
		  <div class="form-group">
		    <label for="username" class="col-sm-2 control-label">UserName*</label>
		    <div class="col-sm-4">
		      <input type="text" id="username" name="username" class="form-control" placeholder="UserName" />
		    </div>
		  </div>
		  <div class="form-group">
		    <label for="password" class="col-sm-2 control-label">Password*</label>
		    <div class="col-sm-4">
		      <input type="password" id="password" name="password" class="form-control" placeholder="Password" />
		    </div>
		  </div>
		  <div class="form-group">
		    <div class="col-sm-offset-2 col-sm-4">
		      <input type="submit" class="btn btn-primary" value="Login">
		    </div>
		  </div>
		  
		</form:form>
	</div>
</div>	
</body>
</html>

成功登录后，我们可以使用以下信息获取经过身份验证的使用详细信息，并使用以下信息保护视图的安全部分：

<h3>Email: <sec:authentication property="name"/></h3>
<h3>
	<sec:authorize access="hasRole('ROLE_ADMIN')">
		<a href="admin">Administration</a>
	</sec:authorize>
</h3>
<p>	<a href="logout">Logout</a></p>
</body>

您可以在github https://github.com/sivaprasadreddy/sivalabs-blog-samples-code/tree/master/springmvc-datajpa-security-demo上找到源代码

参考： “ 我的实验”博客上的 JCG合作伙伴 Siva Reddy 使用JavaConfig的SpringMVC4 + Spring Data JPA + SpringSecurity配置。

翻译自: https://www.javacodegeeks.com/2014/03/springmvc4-spring-data-jpa-springsecurity-configuration-using-javaconfig.html

使用JavaConfig的SpringMVC4 + Spring Data JPA + SpringSecurity配置

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