https://blog.csdn.net/honghailiang888/article/details/53520557
spring security完全可以作为一个专门的专题来说,有一个专题写的不错http://www.iteye.com/blogs/subjects/spring_security,我这里主要是针对4.1.3进行配置说明
一、所需的库文件
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//spring-security
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compile 'org.springframework.security:spring-security-web:4.1.3.RELEASE'
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compile 'org.springframework.security:spring-security-config:4.1.3.RELEASE'
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compile 'org.springframework.security:spring-security-taglibs:4.1.3.RELEASE'
二、web配置
从4以后security就只吃java配置了,具体可以看下《spring in action第四版》,我这里还是使用xml配置
过滤器配置,security是基于过滤器的,web.xml
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<!-- Spring-security -->
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<filter>
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<filter-name>springSecurityFilterChain</filter-name>
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<filter-class>
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org.springframework.web.filter.DelegatingFilterProxy
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</filter-class>
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</filter>
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<filter-mapping>
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<filter-name>springSecurityFilterChain</filter-name>
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<url-pattern>/*</url-pattern>
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</filter-mapping>
需要注意的是,如果配置了sitemesh装饰器,如果在装饰器页面中用到了security,比如标签,那么security过滤器需要配置在sitemesh之前,否则装饰器页中的<sec:authorize>标签可能不起作用
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<!-- Spring-security -->
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<filter>
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<filter-name>springSecurityFilterChain</filter-name>
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<filter-class>
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org.springframework.web.filter.DelegatingFilterProxy
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</filter-class>
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</filter>
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<filter-mapping>
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<filter-name>springSecurityFilterChain</filter-name>
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<url-pattern>/*</url-pattern>
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</filter-mapping>
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<!--sitemesh装饰器放在spring security过来器的后面,以免装饰器页中的security不起作用-->
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<filter>
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<filter-name>sitemesh</filter-name>
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<filter-class>
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org.sitemesh.config.ConfigurableSiteMeshFilter
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</filter-class>
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<init-param>
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<param-name>ignore</param-name>
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<param-value>true</param-value>
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</init-param>
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<init-param>
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<param-name>encoding</param-name>
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<param-value>UTF-8</param-value>
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</init-param>
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</filter>
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<filter-mapping>
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<filter-name>sitemesh</filter-name>
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<url-pattern>/*</url-pattern>
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</filter-mapping>
装饰器页面中的使用
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<sec:authorize access="!hasRole('ROLE_USER')">
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<li>你好,欢迎来到Mango!<a href="<c:url value='/login'/>" class="current">登录</a></li>
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</sec:authorize>
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<sec:authorize access="hasRole('ROLE_USER')">
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<li><sec:authentication property="principal.username"/>欢迎光临Mango!<a href="<c:url value='/logout'/>" class="current">退出</a></li>
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</sec:authorize>
三、security配置文件配置
applicationContext-security.xml
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<beans:beans xmlns="http://www.springframework.org/schema/security"
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xmlns:beans="http://www.springframework.org/schema/beans"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://www.springframework.org/schema/beans
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http://www.springframework.org/schema/beans/spring-beans.xsd
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http://www.springframework.org/schema/security
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http://www.springframework.org/schema/security/spring-security.xsd">
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<http auto-config="true" use-expressions="true" >
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<form-login
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login-page="/login"
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authentication-failure-url="/login?error"
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login-processing-url="/login"
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always-use-default-target="false"
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authentication-success-handler-ref="myAuthenticationSuccessHandler" />
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<!-- 认证成功用自定义类myAuthenticationSuccessHandler处理 -->
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<logout logout-url="/logout"
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logout-success-url="/"
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invalidate-session="true"
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delete-cookies="JSESSIONID"/>
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<csrf disabled="true" />
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<intercept-url pattern="/order/*" access="hasRole('ROLE_USER')"/>
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</http>
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<!-- 使用自定义类myUserDetailsService从数据库获取用户信息 -->
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<authentication-manager>
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<authentication-provider user-service-ref="myUserDetailsService">
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<!-- 加密 -->
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<password-encoder hash="md5">
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</password-encoder>
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</authentication-provider>
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</authentication-manager>
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</ beans:beans>
这里配置了自定义登录界面/login,还需要配置控制器条撞到login.jsp页面,如果字段使用默认值为username和password,当然也可以用 form-login标签中的属性username-parameter="username"password-parameter="password"进行设置,这里的值要和登录页面中的字段一致。login.jsp
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<%@ page language="java" pageEncoding="UTF-8" contentType="text/html;charset=UTF-8"%>
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<%@ include file="../includes/taglibs.jsp"%>
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<html>
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<head>
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<title>Mango-Login</title>
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<meta name="menu" content="home" />
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</head>
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<body>
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<h1>请登录!</h1>
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<div style="text-align:center">
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<form action="<c:url value='/login' />" method="post">
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<c:if test="${not empty error}">
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<p style="color:red">${error}</p>
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</c:if>
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<table>
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<tr>
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<td>用户名:</td>
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<td><input type="text" name="username"/></td>
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</tr>
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<tr>
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<td>密码:</td>
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<td><input type="password" name="password"/></td>
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</tr>
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<tr>
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<td colspan="2" align="center">
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<input type="submit" value="登录"/>
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<input type="reset" value="重置"/>
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</td>
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</tr>
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</table>
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</form>
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</div>
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</body>
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</html>
其中,form action的值要和配置文件中login-process-url的值一致,提交后UsernamePasswordAuthenticationFilter才能对其进行授权认证。
另外认证是采用的自定义myUserDetailsService获取用户信息方式,由于该项目中集成的是Hibernate,所以自己定义了,security系统中是支持jdbc进行获取的
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package com.mango.jtt.springSecurity;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.security.core.authority.AuthorityUtils;
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import org.springframework.security.core.userdetails.User;
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import org.springframework.security.core.userdetails.UserDetails;
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import org.springframework.security.core.userdetails.UserDetailsService;
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import org.springframework.security.core.userdetails.UsernameNotFoundException;
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import org.springframework.stereotype.Service;
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import com.mango.jtt.po.MangoUser;
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import com.mango.jtt.service.IUserService;
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/**
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* 从数据库中获取信息的自定义类
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*
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* @author HHL
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*
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*/
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public class MyUserDetailsService implements UserDetailsService {
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private IUserService userService;
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/**
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* 获取用户信息,设置角色
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*/
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public UserDetails loadUserByUsername(String username)
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throws UsernameNotFoundException {
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// 获取用户信息
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MangoUser mangoUser = userService.getUserByName(username);
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if (mangoUser != null) {
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// 设置角色
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return new User(mangoUser.getUserName(), mangoUser.getPassword(),
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AuthorityUtils.createAuthorityList(mangoUser.getRole()));
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}
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throw new UsernameNotFoundException("User '" + username
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+ "' not found.");
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}
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}
认证成功之后也是自定义了处理类myAuthenticationSuccessHandler,该处理类继承了SavedRequestAwareAuthenticationSuccessHandler,实现了保存请求信息的操作,如果不配置,默认的也是交给SavedRequestAwareAuthenticationSuccessHandler处理,因为在解析security配置文件时,如果没有配置会将此设置为默认值。
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package com.mango.jtt.springSecurity;
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import java.io.IOException;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.security.core.Authentication;
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import org.springframework.security.core.userdetails.UserDetails;
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import org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler;
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import org.springframework.stereotype.Component;
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import com.mango.jtt.po.MangoUser;
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import com.mango.jtt.service.IUserService;
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/**
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* 登录后操作
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*
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* @author HHL
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* @date
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*
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*/
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public class MyAuthenticationSuccessHandler extends
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SavedRequestAwareAuthenticationSuccessHandler {
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private IUserService userService;
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public void onAuthenticationSuccess(HttpServletRequest request,
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HttpServletResponse response, Authentication authentication)
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throws IOException, ServletException {
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// 认证成功后,获取用户信息并添加到session中
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UserDetails userDetails = (UserDetails) authentication.getPrincipal();
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MangoUser user = userService.getUserByName(userDetails.getUsername());
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request.getSession().setAttribute( "user", user);
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super.onAuthenticationSuccess(request, response, authentication);
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}
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}
认证失败则回到登录页,只不过多了error,配置为authentication-failure-url="/login?error" 控制类会对其进行处理
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/**
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*
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*/
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package com.mango.jtt.controller;
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import org.springframework.stereotype.Controller;
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import org.springframework.ui.Model;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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/**
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* @author HHL
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*
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* @date 2016年12月8日
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*
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* 用户控制类
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*/
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public class UserController {
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/**
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* 显示登录页面用,主要是显示错误信息
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*
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* @param model
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* @param error
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* @return
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*/
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public String login(Model model,
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@RequestParam(value = "error", required = false) String error) {
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if (error != null) {
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model.addAttribute( "error", "用户名或密码错误");
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}
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return "login";
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}
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}
另外,从spring security3.2开始,默认就会启用csrf保护,本次将csrf保护功能禁用<csrf disabled="true" />,防止页面中没有配置crsf而报错“Could not verify the provided CSRF token because your session was not found.”,如果启用csrf功能的话需要将login和logout以及上传功能等都需要进行相应的设置,因此这里先禁用csrf保护功能具体可参考spring-security4.1.3官方文档
四,后面会对认证过程,以及如何认证的进行详细说明。
完整代码:http://download.csdn.net/detail/honghailiang888/9705858