Spring Boot-登录后返回用户对象

如果我正确理解了您的问题，则可以提出建议。

首先，您必须实现类，其中将包含用户信息。此类必须继承自

org.springframework.security.core.userdetails.User

public class CustomUserDetails extends User {    public CustomUserDetails(String username, String password,         Collection<? extends GrantedAuthority> authorities) {         super(username, password, authorities);    }    //for example lets add some person data private String firstName;    private String lastName;    //getters and setters}

下一步，您将创建自己的接口实现

org.springframework.security.core.userdetails.UserDetailsService

@Servicepublic class CustomUserDetailService implements UserDetailsService{    @Override    public UserDetails loadUserByUsername(String userName) throws UsernameNotFoundException{        if(StringUtils.isEmpty(userName))  throw new UsernameNotFoundException("User name is empty");        //if you don't use authority based security, just add empty set        Set<GrantedAuthority> authorities = new HashSet<>();        CustomUserDetails userDetails = new CustomUserDetails(userName, "", authorities);        //here you can load user's data from DB or from         //any other source and do:        //userDetails.setFirstName(firstName);        //userDetails.setLastName(lastName);        return userDetails;    }}

如您所见，此类只有一个方法，您可以在其中加载和设置自定义用户详细信息。注意，我用

@Service

现在，要在成功通过身份验证后访问用户数据，可以使用下一种方法，当Spring将自动通过控制器方法传递主体时：

@Controllerpublic class MyController{    @RequestMapping("/mapping")    public String myMethod(Principal principal, ModelMap model){        CustomUserDetails userDetails = (CustomUserDetails)principal;        model.addAttribute("firstName", userDetails.getFirstName());        model.addAttribute("lastName", userDetails.getLastName());    }}

或另一种方式：

@Controllerpublic class MyController{    @RequestMapping("/mapping")    public String myMethod(ModelMap model){        Authentication auth = SecurityContextHolder.getContext().getAuthentication();        CustomUserDetails userDetails = (CustomUserDetails)auth.getPrincipal();        model.addAttribute("firstName", userDetails.getFirstName());        model.addAttribute("lastName", userDetails.getLastName());    }}

该方法可以在Spring不自动通过主体的其他地方使用。

要在成功通过身份验证后转到特定地址，可以使用

SimpleUrlAuthenticationSuccessHandler

@Beanpublic SavedRequestAwareAuthenticationSuccessHandler successHandler() {    SavedRequestAwareAuthenticationSuccessHandler successHandler = new SavedRequestAwareAuthenticationSuccessHandler();    successHandler.setTargetUrlParameter("/succeslogin");    return successHandler;}

并在您的配置中使用它：

http.formLogin()    .loginProcessingUrl("/login")    .permitAll()    .usernameParameter("email")    .passwordParameter("pass")    .successHandler(successHandler())

之后，您可以创建控制器，它将发送来自特定网址的响应：

@Controller@RequestMapping("/sucesslogin")public class SuccessLoginController{     @RequestMapping(method = RequestMethod.POST)     public String index(ModelMap model, Principal principal){         //here you can return view with response     }}

当然，您不仅可以返回视图，还可以返回JSON响应（使用

@ResponseBody