我有一个与玩家实体有一对多关系的团队实体，玩家实体与userlogin实体有一对一的关系，该实体实现Spring安全功能来处理登录，我的问题是：
是否可以通过找出当前登录的用户并查询该用户的玩家存储库，最后将与该登录用户匹配的玩家添加到团队中来将玩家持久保存到所选团队？
我的逻辑在控制器中如下： 创建一个新的userlogin对象，找出当前登录的用户对象并解析它以输入userlogin，然后我获取该用户id并检查这个用户id的玩家存储库，然后最终将该玩家添加到团队并持久化。
这是解决这个问题的正确方法还是我的实体关系不正确？
这是我的控制器：
@Controller
public class HomeController {
@Autowired
UserLoginRepository userRepository;
@Autowired
TeamRepository teamRepository;
@Autowired
GameRepository gameRepository;
@Autowired
LeagueRepository leagueRepository;
@Autowired
PlayerRepository playerRepository;
@Autowired
ManagerRepository managerRepository;
@Autowired
PhysioRepository physioRepository;
@Autowired
CoachingStaffRepository coachingStaffRepository;
@RequestMapping(value="/jointeam", method=RequestMethod.POST)
public String joinTeam(@Valid Team team, Principal principal)
{
UserLogin user1 = new UserLogin();
user1 = (UserLogin) SecurityContextHolder.getContext().getAuthentication().getPrincipal();
Long id = user1.getId();
Player player = new Player();
player = playerRepository.findByLoginId(id);
team.addPlayer(player);
teamRepository.save(team);
return "parseGame";
}
以下是运行此代码时出现的错误：
2018-01-17 14:05:05.312 ERROR 11460 --- [nio-8080-exec-2] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.ClassCastException: org.springframework.security.core.userdetails.User cannot be cast to com.FYP.Club.model.UserLogin] with root cause
java.lang.ClassCastException: org.springframework.security.core.userdetails.User cannot be cast to com.FYP.Club.model.UserLogin
at com.FYP.Club.controller.HomeController.joinTeam(HomeController.java:116) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_60]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_60]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_60]
at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_60]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97) ~[spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) ~[spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) ~[spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) ~[spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) ~[spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) ~[spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) ~[spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) ~[spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:661) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) ~[spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.23.jar:8.5.23]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:124) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:347) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:263) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) [tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) [tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) [tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459) [tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.23.jar:8.5.23]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na:1.8.0_60]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.8.0_60]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.23.jar:8.5.23]
at java.lang.Thread.run(Unknown Source) [na:1.8.0_60]
继承我的玩家资料库：
@Repository
public interface PlayerRepository extends JpaRepository<Player, Long> {
// Player findByUserLogin(UserLogin user);
// Player findByUserLogin(Long id);
Player findByLoginId(Long id);
}
我的团队实体：
@Entity
@Table(name = "team")
public class Team implements Serializable{
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
private String teamName;
private int leaguePosition;
public String teamAddress;
public String level;
@OneToOne
private Manager manager;
@OneToOne
private Physio physio;
@OneToMany(fetch=FetchType.LAZY, cascade=CascadeType.ALL)
public Set<CoachingStaff> coachingStaff;
@OneToMany(fetch=FetchType.LAZY, cascade=CascadeType.ALL)
public Set<Player> players;
public Team() {
}
public Team(Long id, String teamName, int leaguePosition) {
super();
this.id = id;
this.teamName = teamName;
this.leaguePosition = leaguePosition;
}
public Team(Long id, String teamName, int leaguePosition, Manager manager) {
super();
this.id = id;
this.teamName = teamName;
this.leaguePosition = leaguePosition;
this.manager = manager;
}
public Team(Long id, String teamName, int leaguePosition, Manager manager,
Physio physio) {
super();
this.id = id;
this.teamName = teamName;
this.leaguePosition = leaguePosition;
this.manager = manager;
this.physio = physio;
}
public Team(Long id, String teamName, int leaguePosition,
String teamAddress, String level, Manager manager, Physio physio,
Set<CoachingStaff> coachingStaff, Set<Player> players) {
super();
this.id = id;
this.teamName = teamName;
this.leaguePosition = leaguePosition;
this.teamAddress = teamAddress;
this.level = level;
this.manager = manager;
this.physio = physio;
this.coachingStaff = coachingStaff;
this.players = players;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getTeamName() {
return teamName;
}
public void setTeamName(String teamName) {
this.teamName = teamName;
}
public int getLeaguePosition() {
return leaguePosition;
}
public void setLeaguePosition(int leaguePosition) {
this.leaguePosition = leaguePosition;
}
public Set<Player> getPlayers() {
return players;
}
public void setPlayers(Set<Player> players) {
this.players = players;
}
public Set<CoachingStaff> getCoachingStaff() {
return coachingStaff;
}
public void setCoachingStaff(Set<CoachingStaff> coachingStaff) {
this.coachingStaff = coachingStaff;
}
public Manager getManager() {
return manager;
}
public void setManager(Manager manager) {
this.manager = manager;
}
public Physio getPhysio() {
return physio;
}
public void setPhysio(Physio physio) {
this.physio = physio;
}
public String getTeamAddress() {
return teamAddress;
}
public void setTeamAddress(String teamAddress) {
this.teamAddress = teamAddress;
}
public String getLevel() {
return level;
}
public void setLevel(String level) {
this.level = level;
}
public void addPlayer(Player player){
players.add(player);
}
}
我的玩家实体：
@Entity
public class Player {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private int id;
private String position;
private Date dob;
private Boolean injured;
private String previousInjuries;
@OneToMany(fetch=FetchType.LAZY, cascade=CascadeType.ALL)
public Set<PlayerSeasonStat> playerStats;
@OneToOne
private UserLogin login;
public Player()
{
}
public Player(String position, Date dob,
Boolean injured, String previousInjuries) {
super();
this.position = position;
this.dob = dob;
this.injured = injured;
this.previousInjuries = previousInjuries;
}
public Player(int id, String position, Date dob, Boolean injured,
String previousInjuries, Set<PlayerSeasonStat> playerStats,
UserLogin login) {
super();
this.id = id;
this.position = position;
this.dob = dob;
this.injured = injured;
this.previousInjuries = previousInjuries;
this.playerStats = playerStats;
this.login = login;
}
public UserLogin getLogin() {
return login;
}
public void setLogin(UserLogin login) {
this.login = login;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getPosition() {
return position;
}
public void setPosition(String position) {
this.position = position;
}
public Date getDob() {
return dob;
}
public void setDob(Date dob) {
this.dob = dob;
}
public Boolean getInjured() {
return injured;
}
public void setInjured(Boolean injured) {
this.injured = injured;
}
public String getPreviousInjuries() {
return previousInjuries;
}
public void setPreviousInjuries(String previousInjuries) {
this.previousInjuries = previousInjuries;
}
public Set<PlayerSeasonStat> getPlayerStats() {
return playerStats;
}
public void setPlayerStats(Set<PlayerSeasonStat> playerStats) {
this.playerStats = playerStats;
}
我的用户登录实体：
@Entity
public class UserLogin {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private Long id;
private String firstName;
private String lastName;
private Long phone;
private String email;
private String address;
private String password;
private boolean userStatus;
private String userType;
public UserLogin()
{
}
public UserLogin(Long id, String firstName, String lastName, Long phone,
String email, String address, String password, boolean userStatus,
String userType) {
super();
this.id = id;
this.firstName = firstName;
this.lastName = lastName;
this.phone = phone;
this.email = email;
this.address = address;
this.password = password;
this.userStatus = userStatus;
this.userType = userType;
}
public String getUserType() {
return userType;
}
public void setUserType(String userType) {
this.userType = userType;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public Long getPhone() {
return phone;
}
public void setPhone(Long phone) {
this.phone = phone;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public boolean getUserStatus() {
return userStatus;
}
public void setUserStatus(boolean userStatus) {
this.userStatus = userStatus;
}
}
最后是调用上述方法的html页面。注意我使用的是Thymeleaf：
th:each="team : ${teams}"
th:text="${team.teamName}"
th:text="${team.teamAddress}"
th:text="${team.level}"
th:text="${team.manager}"></td>
<button onclick="myFunction()">View Team</button>
th:action="@{/jointeam}" method="post" th:object="${team}"
<button onclick="myFunction()">Join Team</button>
答案 0 :(得分：2)
修复ClassCastException：
// user1 = (UserLogin) SecurityContextHolder.getContext().getAuthentication().getPrincipal();
String userName = SecurityContextHolder.getContext().getAuthentication().getPrincipal().getUsername();
然后查找用户的ID：
// assuming method exists in the repo
long id = userRepository.findByUserName(userName).getId();
// use id to persist in other repos...
另外，做这样的事情：
Player player = new Player();
player = playerRepository.findByLoginId(id);
毫无意义。 player被分配了一个新实例，但随后它立即被重新分配给其他实例（或null），因此不再引用原始播放器，需要进行垃圾回收。就这样做：
Player player = playerRepository.findByLoginId(id);