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;
		}
	}
}