开发登陆模块功能,并整合Json Web Token
开发登陆功能
LoginRequest.java
![](https://img2020.cnblogs.com/blog/1504448/202007/1504448-20200717090127280-1381757305.png)
UserMapper.xml ![](https://img2020.cnblogs.com/blog/1504448/202007/1504448-20200717095043321-793548807.png)
UserMapper.java
![](https://img2020.cnblogs.com/blog/1504448/202007/1504448-20200717095131677-713412247.png)
UserService.java
![](https://img2020.cnblogs.com/blog/1504448/202007/1504448-20200717095243683-1323155156.png)
UserServiceImpl.java
![](https://img2020.cnblogs.com/blog/1504448/202007/1504448-20200717095325386-1575394132.png)
package net.ybclass.online_ybclass.service.impl;
import net.ybclass.online_ybclass.model.entity.User;
import net.ybclass.online_ybclass.mapper.UserMapper;
import net.ybclass.online_ybclass.service.UserService;
import net.ybclass.online_ybclass.utils.CommonUtils;
import net.ybclass.online_ybclass.utils.JWTUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.Date;
import java.util.Map;
import java.util.Random;
@Service
public class UserServiceImpl implements UserService {
@Autowired(required = false)
private UserMapper userMapper;
@Override
public int save(Map<String, String> userInfo) {
User user=parseToUser(userInfo);
if (user!=null){
return userMapper.save(user);
}else {
return -1;
}
}
/**
* 解析map中的User对象
* @param userInfo
* @return
*/
private User parseToUser(Map<String, String> userInfo) {
if (userInfo.containsKey("phone")&&userInfo.containsKey("pwd")&&userInfo.containsKey("name")){
User user =new User();
user.setName(userInfo.get("name"));
user.setHeadImg(getRandomImg());
user.setPhone(userInfo.get("phone"));
user.setCreateTime(new Date());
String pwd=userInfo.get("pwd");
//MD5加密
user.setPwd(CommonUtils.MD5(pwd));
return user;
}
return null;
}
/**
* 放在CDN上的随机头像
*/
private static final String [] headImg = {
"https://xd-video-pc-img.oss-cn-beijing.aliyuncs.com/xdclass_pro/default/head_img/12.jpeg",
"https://xd-video-pc-img.oss-cn-beijing.aliyuncs.com/xdclass_pro/default/head_img/11.jpeg",
"https://xd-video-pc-img.oss-cn-beijing.aliyuncs.com/xdclass_pro/default/head_img/13.jpeg",
"https://xd-video-pc-img.oss-cn-beijing.aliyuncs.com/xdclass_pro/default/head_img/14.jpeg",
"https://xd-video-pc-img.oss-cn-beijing.aliyuncs.com/xdclass_pro/default/head_img/15.jpeg"
};
/**
* 获取随机头像
* @return
*/
private String getRandomImg(){
int size=headImg.length;
Random random=new Random();
int index=random.nextInt(size);
return headImg[index];
}
@Override
public User findByPhone(String phone) {
return userMapper.findByPhone(phone);
}
@Override
public String findByPhoneAndPwd(String phone, String pwd) {
User user=userMapper.findByPhoneAndPwd(phone,CommonUtils.MD5(pwd));
return user==null?null: JWTUtils.geneJsonWebToken(user);
}
}
UserController.java
![](https://img2020.cnblogs.com/blog/1504448/202007/1504448-20200717095517327-145355282.png)
CommonUtils.java
![](https://img2020.cnblogs.com/blog/1504448/202007/1504448-20200717095606655-1216906550.png)
JWTUtils.java
package net.ybclass.online_ybclass.utils;
import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import net.ybclass.online_ybclass.model.entity.User;
import java.util.Date;
/**
* JWT工具类
* 注意点:
* 1、生成的token,是可以通过base64进行解密出铭文信息
* 2、base64进行解密出明文信息,修改再进行编码,则会解密失败
* 3、无法作废已颁布的token,除非改密钥
*/
public class JWTUtils {
/**
* 过期时间,一周
*/
static final long EXPIRE = 60000 * 60 * 24 * 7;
/**
* 加密密钥
*/
private static final String SECRET = "ybclass.net168";
/**
* 令牌前缀
*/
private static final String TOKEN_PREFIX = "ybclass";
/**
* 主题
*/
private static final String SUBJECT = "ybclass";
/**
* 根据用户信息,生成令牌
*
* @param user
* @return
*/
public static String geneJsonWebToken(User user) {
String token = Jwts.builder().setSubject(SUBJECT)
.claim("head_img", user.getHeadImg())
.claim("id", user.getId())
.claim("name", user.getName())
.setIssuedAt(new Date()) //令牌颁布时间
.setExpiration(new Date(System.currentTimeMillis() + EXPIRE)) //过期时间
.signWith(SignatureAlgorithm.HS256, SECRET) //加密方式
.compact();
token = TOKEN_PREFIX + token;
return token;
}
/**
* 校验token方法
*
* @param token
* @return
*/
public static Claims checkJWT(String token) {
try {
final Claims claims = Jwts.parser()
.setSigningKey(SECRET)
.parseClaimsJws(token.replace(TOKEN_PREFIX, ""))
.getBody();
return claims;
} catch (Exception e) {
return null;
}
}
}
项目结构
![](https://img2020.cnblogs.com/blog/1504448/202007/1504448-20200717095715587-1055719435.png)
修改domain为model层
- 增加entity、request包
- 记得改appliccation.properties配置文件路径
![](https://img2020.cnblogs.com/blog/1504448/202007/1504448-20200716192723029-59103078.png)
演示
![](https://img2020.cnblogs.com/blog/1504448/202007/1504448-20200717100258730-1650985327.gif)