Shiro-自定义realm

Shiro自定义 realm

package com.zhen.realm;
 
 
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.springframework.beans.factory.annotation.Autowired;
 
import com.zhen.model.User;
import com.zhen.service.UserService;
 
public class MyRealm extends AuthorizingRealm{
 
    @Autowired
    private UserService userService;
     
    /**
     * 为当前登录成功的用户授予角色和权限
     * */
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        //获取登录用户名
        String userName = (String) principals.getPrimaryPrincipal();
        SimpleAuthorizationInfo authorizationInfo = new SimpleAuthorizationInfo();
        //根据用户名获取用户角色，并赋值给authorizationInfo
        authorizationInfo.setRoles(userService.getRoles(userName));
        //根据用户名获取用户权限，并赋值给authorizationInfo
        authorizationInfo.setStringPermissions(userService.getPermissions(userName));
        return authorizationInfo;
    }
 
    /**
     * 验证当前登录的用户
     * */
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        //根据token获取到用户名，根据用户名查询相关信息
        String userName = (String) token.getPrincipal();
        //根据用户名获取用户信息
        User user = userService.getByUserName(userName);
        if (user != null) {
            //获得认证信息
            AuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo(user.getUserName(),user.getPassword(),"xx");
            return authenticationInfo;
        }else{
            return null;
        }
    }
}