spring5_demo1/spring5-auth/spring5-auth-server/src/main/java/com/yaozhitech/spring5/service/UserService.java

package com.yaozhitech.spring5.service;

import java.util.Arrays;
import java.util.List;

import org.apache.shiro.crypto.hash.Sha256Hash;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import com.yaozhitech.spring5.dto.UserDto;
import com.yaozhitech.spring5.utils.JwtUtils;

@Service
public class UserService {

	@Value("${password.salt}")
	private String encryptSalt;
	
	@Value("${jwt.salt}")
	private String jwtSalt;

	/**
	 * 保存user登录信息，返回token
	 * 
	 * @param userDto
	 */
	public String generateJwtToken(String username) {
		return JwtUtils.sign(username, jwtSalt, 3600); // 生成jwt token，设置过期时间为1小时
	}

	/**
	 * 获取上次token生成时的salt值和登录用户信息
	 * 
	 * @param username
	 * @return
	 */
	public UserDto getJwtTokenInfo(String username) {
		UserDto user = getUserInfo(username);
		user.setSalt(jwtSalt);
		return user;
	}

	/**
	 * 获取数据库中保存的用户信息，主要是加密后的密码
	 * 
	 * @param userName
	 * @return
	 */
	public UserDto getUserInfo(String userName) {
		UserDto user = new UserDto();
		user.setUserId(1L);
		user.setUsername(userName);
		user.setEncryptPwd(new Sha256Hash("123456", encryptSalt).toHex());
		return user;
	}

	/**
	 * 获取用户角色列表，强烈建议从缓存中获取
	 * 
	 * @param userId
	 * @return
	 */
	public List<String> getUserRoles(Long userId) {
		return Arrays.asList("admin");
	}
}