配置自定义登录

src/main/java/com/codesdream/ase/component/ASESecurityAuthenticationProvider.java

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+package com.codesdream.ase.component;
+
+import org.springframework.security.authentication.*;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.AuthenticationException;
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.core.userdetails.UsernameNotFoundException;
+import org.springframework.security.crypto.password.PasswordEncoder;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.Resource;
+import java.io.UnsupportedEncodingException;
+import java.security.NoSuchAlgorithmException;
+import java.util.Collection;
+
+@Component
+public class ASESecurityAuthenticationProvider implements AuthenticationProvider {
+    @Resource
+    UserDetailsService userDetailsService;
+
+    @Resource
+    ASEUsernameEncoder usernameEncoder;
+
+    @Resource
+    PasswordEncoder passwordEncoder;
+
+    @Override
+    public Authentication authenticate(Authentication authentication) throws AuthenticationException {
+        // 获得登录表单中的学号
+        String username = usernameEncoder.encode(authentication.getName());
+        // 获得表单中的密码
+        String password = passwordEncoder.encode(authentication.getCredentials().toString());
+
+        // 判断用户是否存在
+        UserDetails userInfo = userDetailsService.loadUserByUsername(username);
+        if (userInfo == null) {
+            throw new UsernameNotFoundException("User IS Not Existing");
+        }
+
+        // 判断密码是否正确
+        if (!userInfo.getPassword().equals(password)) {
+            throw new BadCredentialsException("Password IS Uncorrected");
+        }
+
+        // 判断账号是否停用/删除
+        if (!userInfo.isEnabled()) {
+            throw new DisabledException("User IS Disabled");
+        }
+        else if(!userInfo.isAccountNonLocked()){
+            throw new LockedException("User IS Locked");
+        }
+        else if(!userInfo.isAccountNonExpired()){
+            throw new  AccountExpiredException("User IS Expired");
+        }
+
+        Collection<? extends GrantedAuthority> authorities = userInfo.getAuthorities();
+        return new UsernamePasswordAuthenticationToken(userInfo, password, authorities);
+    }
+
+    @Override
+    public boolean supports(Class<?> aClass) {
+        return true;
+    }
+}

src/main/java/com/codesdream/ase/component/ASEUsernameEncoder.java

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+package com.codesdream.ase.component;
+
+import org.apache.commons.codec.digest.DigestUtils;
+import org.springframework.stereotype.Component;
+
+@Component
+public class ASEUsernameEncoder {
+    public String encode(CharSequence charSequence){
+        return "u_id_" + DigestUtils.sha256Hex(charSequence.toString());
+    }
+
+    public boolean matches(CharSequence charSequence, String s){
+        return s.equals(encode(charSequence.toString()));
+    }
+}