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spring boot security 沒有合適的構(gòu)造器問題

 更新時(shí)間:2023年12月11日 09:45:03   作者:ajdxwz  
這篇文章主要介紹了spring boot security 沒有合適的構(gòu)造器問題,具有很好的參考價(jià)值,希望對(duì)大家有所幫助,如有錯(cuò)誤或未考慮完全的地方,望不吝賜教

bug 出現(xiàn)

在項(xiàng)目中使用spring security 進(jìn)行用戶登錄驗(yàn)證,其中,出現(xiàn)了一個(gè)問題,久久不能解決

希望給遇到過同樣的問題或者即將遇到這個(gè)問題的伙伴,一個(gè)參考

項(xiàng)目使用spring boot 和spring security進(jìn)行開發(fā),程序已經(jīng)能正常運(yùn)行,但是在打包項(xiàng)目時(shí),會(huì)出現(xiàn)如下的編譯錯(cuò)誤。

項(xiàng)目打包時(shí),遇到的錯(cuò)誤,有時(shí)編譯過,有時(shí)編譯不過,反正各種不能編譯

D5Utils.java:[16,46] sun.misc.BASE64Encoder是內(nèi)部專用 API, 可能會(huì)在未來發(fā)行版中刪除
[INFO] 6 warnings 
[INFO] -------------------------------------------------------------
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] /E:/SVNdownload/zhongcheroof/zhongcheroof/src/main/java/com/xinda/models/dto/ReturnUserInfo.java:[12,1] 對(duì)于User(沒有參數(shù)), 找不到合適的構(gòu)造器
    構(gòu)造器 org.springframework.security.core.userdetails.User.User(java.lang.String,java.lang.String,java.util.Collection<? extends org.springframework.security.core.GrantedAuthority>)不適用
      (實(shí)際參數(shù)列表和形式參數(shù)列表長度不同)
    構(gòu)造器 org.springframework.security.core.userdetails.User.User(java.lang.String,java.lang.String,boolean,boolean,boolean,boolean,java.util.Collection<? extends org.springframework.security.core.GrantedAuthority>)不適用
      (實(shí)際參數(shù)列表和形式參數(shù)列表長度不同)
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.765 s
[INFO] Finished at: 2019-02-21T16:11:54+08:00
[INFO] Final Memory: 38M/283M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project zhongcheroof: Compilation failure
[ERROR] /E:/SVNdownload/zhongcheroof/zhongcheroof/src/main/java/com/xinda/models/dto/ReturnUserInfo.java:[12,1] 對(duì)于User(沒有參數(shù)), 找不到合適的構(gòu)造器
[ERROR] 構(gòu)造器 org.springframework.security.core.userdetails.User.User(java.lang.String,java.lang.String,java.util.Collection<? extends org.springframework.security.core.GrantedAuthority>)不適用
[ERROR] (實(shí)際參數(shù)列表和形式參數(shù)列表長度不同)
[ERROR] 構(gòu)造器 org.springframework.security.core.userdetails.User.User(java.lang.String,java.lang.String,boolean,boolean,boolean,boolean,java.util.Collection<? extends org.springframework.security.core.GrantedAuthority>)不適用
[ERROR] (實(shí)際參數(shù)列表和形式參數(shù)列表長度不同)
[ERROR] -> [Help 1]
[ERROR] 

項(xiàng)目中出現(xiàn)編譯錯(cuò)誤的代碼如下:

登錄的login接口

@Data
@Service
public class LoginValidate implements UserDetailsService{
	@Autowired
	private UserService userService;
	private User userInfo;
	
	@Autowired
	UserRepos userRepos;
	
	public UserDetails loadUserByUsername(String arg0) throws UsernameNotFoundException {
		 
		 userInfo = userService.getUserByUsername(arg0);
		if (userInfo == null){
            throw new UsernameNotFoundException("用戶不存在!");
        }
		
		String loginTime = DateUtil.format(new Date(), "yyyy-MM-dd HH:mm:ss");
		userRepos.updateLoginTimeByUsername(userInfo.getUsername(),loginTime);
		
		List<GrantedAuthority> authorities = new ArrayList<GrantedAuthority>();
		switch (userInfo.getLevel()) {
		case 1://管理員
			authorities.add(new SimpleGrantedAuthority("ROLE_ADMIN"));
			System.err.println("用戶權(quán)限:ROLE_ADMIN");
			break;
		case 2://普通用戶
			authorities.add(new SimpleGrantedAuthority("ROLE_USER"));
			System.err.println("用戶權(quán)限:ROLE_USER");
			break;
		default:
			throw new UsernameNotFoundException("用戶權(quán)限配置錯(cuò)誤");
		}
		System.err.println("進(jìn)入login登錄驗(yàn)證");
		ReturnUserInfo returnUserInfo = new ReturnUserInfo(userInfo.getUsername(), userInfo.getPassword(), authorities);
		returnUserInfo.setUsername(userInfo.getUsername());
		returnUserInfo.setUserLevel(userInfo.getLevel());
		returnUserInfo.setLoginTime(loginTime);
		returnUserInfo.setRole(UserLevelEnum.getName(userInfo.getLevel()));
		System.err.println("返回值:" + returnUserInfo);
		return returnUserInfo;
	}

}

返回給前端頁面的實(shí)體類

@Data
public class ReturnUserInfo extends User{
	private String username;
	private int userLevel;
	private String role;
	private String loginTime;
	
	public ReturnUserInfo(String username, String password, Collection<? extends GrantedAuthority> authorities) {
		super(username, password, authorities);
	}
	public ReturnUserInfo(String username, String password, boolean enabled,
			boolean accountNonExpired, boolean credentialsNonExpired,
			boolean accountNonLocked, Collection<? extends GrantedAuthority> authorities) {
		super(username, password, true, true, true, true, authorities);
	}
	
}

上述代碼導(dǎo)致了編譯有時(shí)成功,有時(shí)不成功

問題原因及解決

在 ReturnUserInfo 中使用了 @Data 這個(gè)注解,

網(wǎng)上的說法是:

@Data 我自己嘗試了下,我們使用 @Data 注解就可以有下面幾個(gè)注解的功能: @ToString、@Getter、@Setter、@EqualsAndHashCode、@NoArgsConstructor 。

  • 注意的是,同時(shí)使用@Data 和 @AllArgsConstructor 后 ,默認(rèn)的無參構(gòu)造函數(shù)失效,如果需要它,要重新設(shè)置 @NoArgsConstructor
  • 這里就是為什么我們的一個(gè)實(shí)體類需要加上三個(gè)注解
@Data
@NoArgsConstructor
@AllArgsConstructor
public class WarningInfo {
	private Picture picture;
	private Video video;
}

經(jīng)過查詢User的源碼,發(fā)現(xiàn)確實(shí)User的這個(gè)類沒有無參構(gòu)造器,只有另外的兩個(gè)構(gòu)造器

public User(String username, String password,
			Collection<? extends GrantedAuthority> authorities) {
		this(username, password, true, true, true, true, authorities);
	}
public User(String username, String password, boolean enabled,
			boolean accountNonExpired, boolean credentialsNonExpired,
			boolean accountNonLocked, Collection<? extends GrantedAuthority> authorities) {

		if (((username == null) || "".equals(username)) || (password == null)) {
			throw new IllegalArgumentException(
					"Cannot pass null or empty values to constructor");
		}

		this.username = username;
		this.password = password;
		this.enabled = enabled;
		this.accountNonExpired = accountNonExpired;
		this.credentialsNonExpired = credentialsNonExpired;
		this.accountNonLocked = accountNonLocked;
		this.authorities = Collections.unmodifiableSet(sortAuthorities(authorities));
	}

因此,原因出現(xiàn)了,在使用了@data這個(gè)注解的時(shí)候,添加了默認(rèn)的User 無參構(gòu)造器,而源碼中并沒有User無參構(gòu)造器,因此造成了編譯錯(cuò)誤。

解決辦法

  • 將@data注解注釋掉,用傳統(tǒng)的set和get方法進(jìn)行標(biāo)識(shí),代碼如下,如下操作,便不會(huì)在有編譯錯(cuò)誤
//@Data
public class ReturnUserInfo extends User{
	private String username;
	private int userLevel;
	private String role;
	private String loginTime;
	
	
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public int getUserLevel() {
		return userLevel;
	}
	public void setUserLevel(int userLevel) {
		this.userLevel = userLevel;
	}
	public String getRole() {
		return role;
	}
	public void setRole(String role) {
		this.role = role;
	}
	public String getLoginTime() {
		return loginTime;
	}
	public void setLoginTime(String loginTime) {
		this.loginTime = loginTime;
	}
	public ReturnUserInfo(String username, String password, Collection<? extends GrantedAuthority> authorities) {
		super(username, password, authorities);
	}
	public ReturnUserInfo(String username, String password, boolean enabled,
			boolean accountNonExpired, boolean credentialsNonExpired,
			boolean accountNonLocked, Collection<? extends GrantedAuthority> authorities) {
		super(username, password, true, true, true, true, authorities);
	}
	
}

注意:

使用 @Data 時(shí)候回變感嘆號(hào),感嘆號(hào)的內(nèi)容是

Generating equals/hashCode implementation but without a call to superclass, 
even though this class does not extend java.lang.Object. 
If this is intentional, add '@EqualsAndHashCode(callSuper=false)' to your type.

翻譯過來是:

生成equals/hashcode實(shí)現(xiàn),但不調(diào)用超類,即使此類不擴(kuò)展java.lang.object。

如果有意這樣做,請(qǐng)將“@equalsandhashcode(callsuper=false)”添加到您的類型中。

寫一個(gè)類的時(shí)候,java會(huì)自動(dòng)給這個(gè)類提供一個(gè)無參構(gòu)造器。

總結(jié)

以上為個(gè)人經(jīng)驗(yàn),希望能給大家一個(gè)參考,也希望大家多多支持腳本之家。

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