使用Spring Security开发基于表单的认证(二)
个性化用户认证流程
一、自定义登录页面
①加页面:定义该页面hcx-signIn.html为登录页面:
②配授权
@Configurationpublic class BrowserSecurityConfig extends WebSecurityConfigurerAdapter{ @Bean //加密 public PasswordEncoder passwordEncoder() { //如果系统本身有了其他的加密方式,此处就应该返回自己写的passwordencoder,再实现encoder和matches方法 return new BCryptPasswordEncoder(); } @Override protected void configure(HttpSecurity http) throws Exception { //使用表单登录:指定了身份认证的方式 http.formLogin() .loginPage("/hcx-signIn.html")//自定义登录页面 //http.httpBasic() //使用回之前的认证方式 .and() .authorizeRequests()//表示以下都是授权的配置 .antMatchers("/hcx-signIn.html").permitAll()//访问该url不需要身份认证 .anyRequest()//任何请求 .authenticated();//都需要身份认证 } }
hcx-signIn.html:
<!DOCTYPE html><html><head><meta charset="UTF-8"><title>登录</title></head><body> <h2>标准登录页面</h2></body></html>
登录页面目录.png
注意,如果忘记配授权的话就会进入死循环:
死循环.png
运行后访问http://localhost:8060/user:
访问结果页面.png
过滤器默认处理的登录请求是/login post形式
如果使用了新的请求路径,还需要配置,让SpringSecurity知道
hcx-signIn.html:
<title>登录</title></head><body> <h2>标准登录页面</h2> <h3>表单登录</h3> <form action="/authentication/form" method="post"> <table> <tr> <td>用户名:</td> <td><input type="text" name="username"></td> </tr> <tr> <td>密码:</td> <td><input type="password" name="password"></td> </tr> <tr> <td colspan="2"><button type="submit">登录</button></td> </tr> </table> </form></body>
MyUserDetailsService:
@Componentpublic class MyUserDetailsService implements UserDetailsService{ private Logger logger = LoggerFactory.getLogger(getClass()); @Autowired private PasswordEncoder passwordEncoder; @Override public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException { logger.info("登录用户名:"+username); //根据用户名查找用户信息 //根据查找到的用户信息判断用户是否被冻结 //为了把用户是否冻结的信息告诉SpringSecurity,new User的构造方法使用包含四个布尔返回值的参数的方法 //此处没有读取数据库,直接用静态数据 密码:123456 静态权限:admin 这些在实际开发中需要从数据库中获取 //passwordEncoder.encode("123456"),在实际应用中,此步骤应该在注册的时候就做好了,此处就直接在数据库拿出加密好的数据 String password = passwordEncoder.encode("123456"); logger.info("数据库密码是:"+password); return new User(username,password, true,true,true,false, AuthorityUtils.commaSeparatedStringToAuthorityList("admin")); } /** * 此处,当前的方法loadUserByUsername返回的是UserDetails接口的实例,使用了Spring默认的User类 * 实际的应用中,并不一定更要使用该类,只要是UserDetails这个接口的实现就可以 * 可以使用对应的DAO接口实现UserDetails接口 */ }
BrowserSecurityConfig:
@Configurationpublic class BrowserSecurityConfig extends WebSecurityConfigurerAdapter{ @Bean //加密 public PasswordEncoder passwordEncoder() { //如果系统本身有了其他的加密方式,此处就应该返回自己写的passwordencoder,再实现encoder和matches方法 return new BCryptPasswordEncoder(); } @Override protected void configure(HttpSecurity http) throws Exception { //使用表单登录:指定了身份认证的方式 http.formLogin() .loginPage("/hcx-signIn.html")//自定义登录页面 .loginProcessingUrl("/authentication/form") //配置让Spring知道让UsernamePasswordAuthenticationFilter过滤器去处理/authentication/form路径 //http.httpBasic() //使用回之前的认证方式 .and() .authorizeRequests()//表示以下都是授权的配置 .antMatchers("/hcx-signIn.html").permitAll()//当访问hcx-signIn.html时,不需要身份认证 .anyRequest()//任何请求 .authenticated()//都需要身份认证 .and() .csrf().disable(); } }
表单登录页面.png
改进:处理不同类型的请求
把上面直接是跳转到一个页面,换成一个Controller,让Controller判断是否是一个HTML请求引发的跳转,如果是就返回登录页面如果不是就返回401状态码和错误信息:
处理不同类型的请求.png
BrowserSecurityController:在该类中处理需要身份认证的请求:
@RestControllerpublic class BrowserSecurityController { private Logger logger = LoggerFactory.getLogger(getClass()); //判断引发跳转的是否是html //用RequestCache拿到引发跳转的请求 private RequestCache requestCache = new HttpSessionRequestCache(); private RedirectStrategy redirectStrategy = new DefaultRedirectStrategy(); @Autowired private SecurityProperties securityProperties; /** * 当需要身份认证时,跳转到这里 * @param request * @param response * @return * @throws IOException */ @RequestMapping("/authentication/require") @ResponseStatus(code=HttpStatus.UNAUTHORIZED) //返回状态码 public SimpleResponse requireAuthentication(HttpServletRequest request,HttpServletResponse response) throws IOException{ //拿到引发跳转的请求 SavedRequest savedRequest = requestCache.getRequest(request, response); if(savedRequest!=null) { //引发跳转请求的url String targetUrl = savedRequest.getRedirectUrl(); logger.info("引发跳转的请求时: "+targetUrl); if(StringUtils.endsWithIgnoreCase(targetUrl, ".html")) {//判断引发跳转的请求是否是以.html结尾 //跳转到登录页 /** * request * response * url:要跳转的url 此处不可能固定的跳转到某一个页面,配置可以使用标准登录页还是使用自己写的登录页 */ redirectStrategy.sendRedirect(request, response,securityProperties.getBrowser().getLoginPage());//url://跳转到用户配置的login的配置 } } //如果不是一个html请求,返回401状态码和错误信息 return new SimpleResponse("访问的服务需要身份认证,请引导用户到登录页"); } }
使用户可以自己去配登录页面:
在application.properties中配置:
hcx.security.browser.loginPage = /demo-signIn.html
demo-signIn.html:
<!DOCTYPE html><html><head><meta charset="UTF-8"><title>登录</title></head><body> <h2>Demo登录页</h2></body></html>
当做了该配置之后,就会跳转到demo-signIn.html该页面;如果没有该配置,则跳转到原本配置的标准登录页
实现配置跳转到不同登录页.png
系统配置封装:
系统配置封装.png
SecurityProperties:
package com.hcx.security.core.properties;import org.springframework.boot.context.properties.ConfigurationProperties;/** * @author HCX * */@ConfigurationProperties(prefix="hcx.security")//该类会读取配置文件中所有以hcx.security开头的配置项public class SecurityProperties { private BrowserProperties browser = new BrowserProperties(); public BrowserProperties getBrowser() { return browser; } public void setBrowser(BrowserProperties browser) { this.browser = browser; } }
BrowserProperties:
/** * @author HCX * */public class BrowserProperties { /** * 如果用户配置了就使用用户配置的; * 如果没有配,则使用/hcx-signIn.html */ private String loginPage = "/hcx-signIn.html";//指定默认跳转 public String getLoginPage() { return loginPage; } public void setLoginPage(String loginPage) { this.loginPage = loginPage; } }
BrowserSecurityConfig:
@Configurationpublic class BrowserSecurityConfig extends WebSecurityConfigurerAdapter{ @Autowired private SecurityProperties securityProperties; @Bean //加密 public PasswordEncoder passwordEncoder() { //如果系统本身有了其他的加密方式,此处就应该返回自己写的passwordencoder,再实现encoder和matches方法 return new BCryptPasswordEncoder(); } @Override protected void configure(HttpSecurity http) throws Exception { //使用表单登录:指定了身份认证的方式 http.formLogin() .loginPage("/authentication/require")//自定义登录页面 .loginProcessingUrl("/authentication/form") //配置让Spring知道让UsernamePasswordAuthenticationFilter过滤器去处理/authentication/form路径 //http.httpBasic() //使用回之前的认证方式 .and() .authorizeRequests()//表示以下都是授权的配置 .antMatchers("/authentication/require", securityProperties.getBrowser().getLoginPage()).permitAll() .anyRequest()//任何请求 .authenticated()//都需要身份认证 .and() .csrf().disable(); } }
要使配置生效,还需要一个配置类:
@Configuration //声明其为一个配置类@EnableConfigurationProperties(SecurityProperties.class)//作用:让SecurityProperties配置读取器生效public class SecurityCoreConfig { }
使用注解返回状态码:@ResponseStatus(code=HttpStatus.UNAUTHORIZED)
返回错误信息:服务应该返回json
包装,把字符串包装成对象返回
public class SimpleResponse { private Object content; public Object getContent() { return content; } public SimpleResponse(Object content) { super(); this.content = content; } public void setContent(Object content) { this.content = content; } }
运行访问:localhost:8060/user:
运行结果1.png
访问:localhost:8060/index.html则跳转到系统配置的登录页,如果没有配置hcx.security.browser.loginPage = /demo-signIn.html,则跳转到标准登录页
二、自定义登录成功处理
场景:默认情况下,SpringSecurity的登录成功的处理会首先跳到之前引发登录的请求上,比如访问/user,需要身份认证,就会跳转到登录页,登录成功了,又会跳回user请求上。但是在现在前端spa比较流行的情况下,登录可能不是一个表单提交的同步方式,而是由异步的ajax请求访问登录。此时,前端想要拿到的是用户相关的json格式的信息,此时如果登录成功了进行跳转,此种行为肯定是不合适的。
实现AuthenticationSuccessHandler接口即可。
自定义成功处理器HCXAuthenticationSuccessHandler:
package com.hcx.security.browser.authentication;import java.io.IOException;import javax.servlet.ServletException;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import com.fasterxml.jackson.databind.ObjectMapper;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.security.core.Authentication;import org.springframework.security.web.authentication.AuthenticationSuccessHandler;import org.springframework.stereotype.Component;@Component("hcxAuthenticationSuccessHandler")public class HCXAuthenticationSuccessHandler implements AuthenticationSuccessHandler { private Logger logger = LoggerFactory.getLogger(getClass()); @Autowired private ObjectMapper objectMapper; //登录成功后会被调用 /** * Authentication:封装认证信息:包括发起的认证请求的信息,比如IP session和用户信息等 */ @Override public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException { logger.info("登录成功"); response.setContentType("application/json;charset=UTF-8"); response.getWriter().write(objectMapper.writeValueAsString(authentication)); } }
配置:让SpringSecurity知道在登录成功以后用自己定义的登录成功处理器来处理,而不是用Spring默认的处理器,修改配置类
注入自定义的成功处理器.png
BrowserSecurityConfig:
package com.hcx.security.browser;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.security.config.annotation.web.builders.HttpSecurity;import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;import org.springframework.security.crypto.password.PasswordEncoder;import org.springframework.security.web.authentication.AuthenticationSuccessHandler;import com.hcx.security.core.properties.SecurityProperties;@Configurationpublic class BrowserSecurityConfig extends WebSecurityConfigurerAdapter{ @Autowired private SecurityProperties securityProperties; //注入自己写的登录成功处理器 @Autowired private AuthenticationSuccessHandler hcxAuthenticationSuccessHandler; @Bean //加密 public PasswordEncoder passwordEncoder() { //如果系统本身有了其他的加密方式,此处就应该返回自己写的passwordencoder,再实现encoder和matches方法 return new BCryptPasswordEncoder(); } @Override protected void configure(HttpSecurity http) throws Exception { //使用表单登录:指定了身份认证的方式 http.formLogin() .loginPage("/authentication/require")//自定义登录页面 .loginProcessingUrl("/authentication/form") //配置让Spring知道让UsernamePasswordAuthenticationFilter过滤器去处理/authentication/form路径 //http.httpBasic() //使用回之前的认证方式 .successHandler(hcxAuthenticationSuccessHandler) .and() .authorizeRequests()//表示以下都是授权的配置 .antMatchers("/authentication/require", securityProperties.getBrowser().getLoginPage()).permitAll() .anyRequest()//任何请求 .authenticated()//都需要身份认证 .and() .csrf().disable(); } }
返回的json.png
三、自定义登录失败处理
失败处理器HCXAuthencationFailHandler:
package com.hcx.security.browser.authentication;import java.io.IOException;import javax.servlet.ServletException;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.http.HttpStatus;import org.springframework.security.core.AuthenticationException;import org.springframework.security.web.authentication.AuthenticationFailureHandler;import org.springframework.stereotype.Component;import com.fasterxml.jackson.databind.ObjectMapper;@Component("hcxAuthenticationFailHandler")public class HCXAuthencationFailHandler implements AuthenticationFailureHandler { private Logger logger = LoggerFactory.getLogger(getClass()); @Autowired private ObjectMapper objectMapper; /** * AuthenticationException:认证过程中发生错误产生异常的信息 */ @Override public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception) throws IOException, ServletException { logger.info("登录失败"); response.setStatus(HttpStatus.INTERNAL_SERVER_ERROR.value()); response.setContentType("application/json;charset=UTF-8"); response.getWriter().write(objectMapper.writeValueAsString(exception)); } }
使失败处理器生效的配置:
注入自定义的失败处理器.png
BrowserSecurityConfig:
package com.hcx.security.browser;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.security.config.annotation.web.builders.HttpSecurity;import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;import org.springframework.security.crypto.password.PasswordEncoder;import org.springframework.security.web.authentication.AuthenticationFailureHandler;import org.springframework.security.web.authentication.AuthenticationSuccessHandler;import com.hcx.security.core.properties.SecurityProperties;@Configurationpublic class BrowserSecurityConfig extends WebSecurityConfigurerAdapter{ @Autowired private SecurityProperties securityProperties; //注入自己写的登录成功处理器 @Autowired private AuthenticationSuccessHandler hcxAuthenticationSuccessHandler; //注入自己写的登录失败处理器 @Autowired private AuthenticationFailureHandler hcxAuthencationFailHandler; @Bean //加密 public PasswordEncoder passwordEncoder() { //如果系统本身有了其他的加密方式,此处就应该返回自己写的passwordencoder,再实现encoder和matches方法 return new BCryptPasswordEncoder(); } @Override protected void configure(HttpSecurity http) throws Exception { //使用表单登录:指定了身份认证的方式 http.formLogin() .loginPage("/authentication/require")//自定义登录页面 .loginProcessingUrl("/authentication/form") //配置让Spring知道让UsernamePasswordAuthenticationFilter过滤器去处理/authentication/form路径 //http.httpBasic() //使用回之前的认证方式 .successHandler(hcxAuthenticationSuccessHandler) .failureHandler(hcxAuthencationFailHandler) .and() .authorizeRequests()//表示以下都是授权的配置 .antMatchers("/authentication/require", securityProperties.getBrowser().getLoginPage()).permitAll() .anyRequest()//任何请求 .authenticated()//都需要身份认证 .and() .csrf().disable(); } }
四、改造代码
即支持表单提交跳转也支持json返回,让用户可以通过自己的配置决定使用哪一种
声明枚举类:LoginType:
package com.hcx.security.core.properties;public enum LoginType { REDIRECT, JSON }
BrowserProperties中配置:
package com.hcx.security.core.properties;/** * @author HCX * */public class BrowserProperties { /** * 如果用户配置了就使用用户配置的; * 如果没有配,则使用/hcx-signIn.html */ private String loginPage = "/hcx-signIn.html";//指定默认跳转 //配置默认返回json private LoginType loginType = LoginType.JSON; public String getLoginPage() { return loginPage; } public void setLoginPage(String loginPage) { this.loginPage = loginPage; } public LoginType getLoginType() { return loginType; } public void setLoginType(LoginType loginType) { this.loginType = loginType; } }
HCXAuthenticationSuccessHandler:
package com.hcx.security.browser.authentication;import java.io.IOException;import javax.servlet.ServletException;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import com.fasterxml.jackson.databind.ObjectMapper;import com.hcx.security.core.properties.LoginType;import com.hcx.security.core.properties.SecurityProperties;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.security.core.Authentication;import org.springframework.security.web.authentication.AuthenticationSuccessHandler;import org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler;import org.springframework.stereotype.Component;@Component("hcxAuthenticationSuccessHandler")public class HCXAuthenticationSuccessHandler extends SavedRequestAwareAuthenticationSuccessHandler { private Logger logger = LoggerFactory.getLogger(getClass()); @Autowired private ObjectMapper objectMapper; @Autowired private SecurityProperties securityProperties; //登录成功后会被调用 /** * Authentication:封装认证信息:包括发起的认证请求的信息,比如IP session和用户信息等 */ @Override public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException { logger.info("登录成功"); if(LoginType.JSON.equals(securityProperties.getBrowser().getLoginType())) { //是json,调用自己的 response.setContentType("application/json;charset=UTF-8"); response.getWriter().write(objectMapper.writeValueAsString(authentication)); }else { //不是json,则调用父类的,父类为跳转 super.onAuthenticationSuccess(request, response, authentication); } } }
HCXAuthencationFailHandler:
package com.hcx.security.browser.authentication;import java.io.IOException;import javax.servlet.ServletException;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.http.HttpStatus;import org.springframework.security.core.AuthenticationException;import org.springframework.security.web.authentication.AuthenticationFailureHandler;import org.springframework.security.web.authentication.SimpleUrlAuthenticationFailureHandler;import org.springframework.stereotype.Component;import com.fasterxml.jackson.databind.ObjectMapper;import com.hcx.security.core.properties.LoginType;import com.hcx.security.core.properties.SecurityProperties;@Component("hcxAuthenticationFailHandler")public class HCXAuthencationFailHandler extends SimpleUrlAuthenticationFailureHandler { private Logger logger = LoggerFactory.getLogger(getClass()); @Autowired private ObjectMapper objectMapper; @Autowired private SecurityProperties securityProperties; /** * AuthenticationException:认证过程中发生错误产生异常的信息 */ @Override public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception) throws IOException, ServletException { logger.info("登录失败"); if(LoginType.JSON.equals(securityProperties.getBrowser().getLoginType())) { response.setStatus(HttpStatus.INTERNAL_SERVER_ERROR.value()); response.setContentType("application/json;charset=UTF-8"); response.getWriter().write(objectMapper.writeValueAsString(exception)); }else { super.onAuthenticationFailure(request, response, exception); } } }
修改配置来决定使用哪一种方式(在BrowserProperties配置中配置了默认使用json返回):修改demo项目中的配置文件application.properties
修改配置文件决定使用哪种方式响应.png
登录成功跳转页.png
springsecurity认证执行流程:
springsecurity认证执行流程.png
认证结果在多个请求之间共享:
认证结果在多个请求之间共享.png
过滤器链.png
获取认证用户信息:
在UserController中添加获取用户认证信息:
@GetMapping("/me")public Object getCurrentUser() { return SecurityContextHolder.getContext().getAuthentication(); }
或者直接:
@GetMapping("/me")public Object getCurrentUser(Authentication authentication) { return authentication; }
或只获取具体某一部分信息:
@GetMapping("/me")public Object getCurrentUser(@AuthenticationPrincipal UserDetails user) { return user; }
作者:JS_HCX
原文链接
來源:简书
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