SpringSecurity4使用UserDetailsService時無法注入資料庫持久層的service、dao
阿新 • • 發佈:2019-01-10
在使用SpringSecurity4時無法自動注入service層:程式碼如下:
@Service("customUserDetailsService")
@Transactional(readOnly = true)
public class CustomUserDetailsService implements UserDetailsService {
@Autowired
private UserService userService;
public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
System.out.println("username>>>>"+username);
User user = userService.findByUserName(username);
System.out.println("user>>>>"+user);
if (user == null ){
System.out.println("User not found");
throw new UsernameNotFoundException("Username not found");
}
return new org.springframework.security.core.userdetails.User(user.getUserName(),user.getPassWord(),
user.getState().equals("Activite"),true,
true,true,getGrantedAuthorities(user));
}
private List<GrantedAuthority> getGrantedAuthorities(User user){
List<GrantedAuthority> authorities = new ArrayList<GrantedAuthority>();
for(UserToProfileid userToProfileid : user.getUserToProfileidHashSet()){
System.out.println("userToProfileid : "+userToProfileid);
authorities.add(new SimpleGrantedAuthority("ROLE_"+userToProfileid.getProfileid().getType()));
}
System.out.print("authorities :"+authorities);
return authorities;
}
}
在執行上段程式碼是userService一直是空指標異常,後來用dao嘗試也是一樣,報錯NPE,
解決辦法:
後來查閱資料發現是因為專案的載入問題,在執行專案時,spring的載入檔案還沒有載入進來,所以導致無法,對於這種處理方式只需要在啟動專案是載入下spring的配置檔案:
只要對web.xml新增以下內容即可:
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath:config/spring-security.xml
classpath:config/spring-mvc.xml //載入spring配置檔案
</param-value>
</context-param>